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50E2OAD GENERAL MANUAL FOR OIL LUBRICATED SINGLE STAGE PORTABLE AIR COMPRESSOR TABLE OF CONTENTS SAFETY GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Additional Regulators and Controls . . . . . . . . . . . . . . . . . . . 8 Break - in Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 OPERATING PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 WARNING CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 4 Daily Start - Up Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 DUTYCYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Routine Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . 9 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 11 ON - RECEIPT INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Air Filter - Inspection and DESCRIPTION OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 6 Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Oil - Checking and Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Items Needed for Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Check Valve - Inspection and Installing Rubber Foot Strip and Wheels . . . . . . . . . . . . 6 Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Installing Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Safety Valve - Inspection and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 INSTALLATION AND Belt Guard - Removal and Installation . . . . . . . . . . . . . . . 10 BREAK - IN PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 8 Belt Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Location of Air Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Outside Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Pressure Switch - Replacement . . . . . . . . . . . . . . . . . . . . . . . . . 10 Motor Overload Protector - Reset . . . . . . . . . . . . . . . . . . . . . . 10 Voltage and Circuit Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Extension Cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Pulley and Flywheel - Alignment . . . . . . . . . . . . . . . . . . . . . . . . 10 Servicing Intake and Exhaust Valves . . . . . . . . . . . . . . . . . 10 Lubrication and Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 Grounding Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 13 SAFETY GUIDELINES - DEFINITIONS _ CAUTION ] This manual contains information [ _ , DANGER J that is important for you to know URGENTSAFETYINFORMATION - A HAZARD Informationfor preventingdamageto and understand . This information THATWILLCAUSESERIOUSINJURYOR LOSS equipmenL relates to protecting YOUR OF LIFE . SAFETY and PREVENTING EQUIPMENT PROBLEMS . To he _ p you recognize this informa - a , WARNING ] NOTE I tion , we use the symbols to the Informationthat youshouldpayspecia IMPORTANTSAFETYINFORMATIO - NAHAZARD right . Please read the manual and attentionto . THATMIGHTCAUSESERIOUSINJURYORLOSS pay attention to these sections . OF LIFE . Call our Toll Free Number 1 - 800 - 888 - 2468 , Ext 2 , then 1 , to obtain the location of the nearest Authorized Service Center for ordering repair parts and for warranty repairs . When ordering repair parts from your local Authorized Service Center , always give the following information : • Model number of your compressor • Part number and description of the item you wish to purchase Retain Original Sales Receipt as Proof of Purchase for Warranty Repair Work . DeVilbiss Air Power Comp ; MG3 - OLPORT - 3A 11 / 6 / 98
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LIMITED WARRANTY ONE YEAR FROM DATE OF PURCHASE All merchandise manufactured by DeVilbiss Air Power Company / ExCell Manufacturing is warranted to be free of defects in workmanship and material which occur during the first year from the date of purchase by the original purchaser ( initial user ) . Products covered under this warranty include : air compressors , * air tools , accessories , service parts , pressure washers , and generators used in consumer appficafions ( i . e . , personal residential household usage only ) . Air compressors , * air tools , accessories , service parts , pressure washers , and generators used in commercial applications ( income producing ) are covered by a 90 day warranty . DeVilbiss Air Power / ExCell Manufacturing will repair or replace , at DeVilbiss / ExCell's option , products or components which have failed within the warranty period . Repair or replacement , and service calls on 60 and 80 gallon air compressors , will be handled by Authorized Warranty Service Centers and will be scheduled and serviced according to the normal work flow and business hours at the service center location , and depending on the ava # ability of replacement parts . All decisions of DeVilbiss Air Power Company / ExCell Manufactudng with regard to this policy shall be final . This warranty gives you specific legal rights , and you may also have other rights which vary from state to state . ( RESPONSIBILITYOF ORIGINAL PURCHASER ( Ini _ al User ) : J { 3 Retain onginal cash register sales receipt as proof of purchase for warranty work . [ 3 Use reasonable care in the operation and maintenance of the product as described in the Owners Manual ( s ) • Q Deliver or ship the product to the nearest DeVilbiss Air Power / ExCell Manufacturing Authorized Warranty Service Center . Freight costs , if any , must be paid by the purchaser . [ 3 Air compressors with 60 and 80 gallon tanks only will be inspected at the site of installation . Contact the nearest Authorized Warranty Service Center , that provides on - site service calls , for service cell arrangement . [ 3 If the purchaser does not receive satisfactory results from the Authorized Warranty Service Center . the purchaser should contact DeVilbiss Air Power Company / ExCell Manufacturing . ( THIS WARRANTY DOES NOT COVER : J [ 3 Merchandise sold as reconditioned , floormodels and / or display models . Any damaged or incompleteequipment sold " as is " . O Merchandise used as " rental " equipment . Merchandisethat has become inoperativebecause of ordinarywear , misuse , freeze damage , use of improper chemicals , negligence , accident , improperand / or unauthorizedrepair or alterationsincluding failure to operate the product in accordance with the instructionsprovided in the Owners Manual ( s ) supplledwith the product . * Air Tools : O - Rings and driver blades are considered ordinarywear parts , therefore , they are warranted for a period of 45 days from the date of purchase . [ 3 An air compressor that pumps air more than 50 % during a one hour period is considered misuse because the air compressoris undersized for the requiredair demand . Maximum compressorpumping time per hour is 30 minutes . [ 3 Merchandisesold by DeVilbiss Air Power / ExCell Manufacturing which has been manufactured by and identified as the productof another company . The product manufacturers warranty willapply . [ 3 Repair and transportationcosts of merchandise determined not to be defective . _ 1 Cost associated with assembly , required oil , adjustments or other installationand start - up cost . [ 3 ANYINCIDENTAL , INDIRECTORCONSEQUENTIAL LOSS , DAMAGE , OR EXPENSETHATMAYRESULT FROM ANY DEFECT , FAILURE OR MALFUNCTION OF THE PRODUCT . Some statesdonotallowthe exclusion orlimitationof incidentalor consequential damages , so the above limitationorexclusion may not apply to you . [ 3 IMPLIEDWARRANTIES , INCLUDING THOSE OFMERCHANTABILITYAND FITNESS FORA PARTICULAR PURPOSE , ARE LIMITED TO ONE YEAR FROM THE DATE OF ORIGINAL PURCHASE . Somestatesdonot allow limitations on how longan implied warranty lasts , so the above limitationsmay not apply to you . DeWLBISS AIR POWEB € _ / IPAI _ Form : $ P - IOO - F - 10 / 281 @ 7 FAX : 14 _ O _ 8 - 9036 2
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IMPORTANT SAFETY INSTRUCTIONS • SAVE THESE INSTRUCTIONS • ¥ I _ _ IMPROPER OPERATION OR MAINTENANCE OF THIS PRODUCT COULD RESULT IN SERIOUS INJURY AND PROPERTY DAMAGE . READ AND UNDERSTAND ALL WARNINGS AND OPERATING INSTRUC - TIONS BEFORE USING THIS EQUIPMENT . HAZARD WHAT CAN HAPPEN HOW TO PREVENT IT RISK OF BURSTING A / RTANK THE FOLLOWING CONDITIONS COULD LEAD TO A WEAKENING OF THE TANK , AND RESULT IN A VIOLENT TANK EXPLOSION : 1 . FAILURE TO PROPERLY DRAIN DRAIN TANK DALLY OR AFTER EACH USE . CONDENSED ] _ IF TANK DEVELOPS A LEAK , REPLACE IT CAUSING RUST AND THINNING OF THE IMMEDIATELY WITH A NEW TANK OR NEW STEEL TANK . COMPRESSOR OUTFIT . 2 . MODIFICATIONS OR ATTEMPTED DRILL INTO , WELD , OR REPAIRS TO THE TANK . MODIFICATIONS TO THE TANK OR ITS ATTACHMENTS . 3 . UNAUTHORIZED MODIFICATIONS TO THE THE TANK iS DESIGNED TO WITHSTAND PRESSURE SWITCH . SAFETY VALVE . OR SPECIFIC OPERATING PRESSURES . NEVER ANY OTHER COMPONENTS WHICH MAKE ADJUSTMENTS OR PARTS SUBST ! - CONTROL TANK TUTIONS TO ALTER THE FACTORY SET OPERATING PRESSURES , ATTACHMENTS & ACCESSORIES EXCEEDING THE PRESSURE RATING OF AIR FOLLOW THE EQUIPMENT MANUFACTUR - SPRAY GUNS , AIR OPERATED ACCES - ERS RECOMMENDATION AND NEVER SORIES , TIRES AND OTHER INFLATABLES CAN EXCEED THE MAXIMUM ALLOWABLE PRES - OR FLY APART , SURE RATING OF A1TACHMENTS . AND COULD RESULT IN SERIOUS INJURY . USE COMPRESSOR TO INFLATE _ MhLL LOW - PRESSURE OBJECTS SUCH AS CHILDREN'S TOYS . FOO11BALLS . BASKETBALLS . ETC . IT IS NORMAL FOR ELECTRICAL CONTACTS ALWAYS OPERATE THE COMPRESSOR IN A RISK OF WITHIN THE MOTOR AND PRESSURE SWITCH WELL VENTILATED O - EXPLOSION OR FIRE BUSTIBLE MATERIALS . GASOLINE OR SOL - VENT VAPORS . IF ELECTRICALSPARKS FROM COMPRESSOREE IF SPRAYING FLAMMABLE MATERIALS , LO - COME INTO CONTACT WITH FLAMMABLR CATE COMPRESSOR AT LEAST 20 F ! _ l _ TL VAPORS . THEY MAY IGNITE . CAUSING R AWAY FROM SPRAY AREA . AN ADDITIONA LENGTH OF HOSE MAY BE REQUIRED . STORE FLAMMABLE MATERIALS IN OAM - SECURE LOCATION AWAY FROM C PRSSSOR . RESTRICTING ANY OF THE COMPRESSOR NEVER PLACE OBJECTS AGAINST OR ONM - VENTILATION OPENINGS WILL CAUSE SERI - TOP OF COMPRESSOR , OPERATE CO OUS OVERHEATING AND COULD CAUSE PRESSOR IN AN OPEN AREA AT LEAST 12 FIRE . INCHES AWAY FROM ANY WALL OR OBSTRUCTION THAT WOULD RESTRICT THE FLOW OF FRESH AIR TO THE VENTILATION OPENINGS . YOUR AIR COMPRESSOR IS POWERED BY NEVER OPERATE THE COMPRESSOR OUT - RISK OF ELE _ LIKE ANY OTHER ELECTRI - DOORS WHEN IT IS RAINING OR IN WET ELECTRICAL SHOCK CONDITIONS . CALLY POWERED DEVICE , IF IT IS NOT USED PROPERLY IT MAY CAUSE ELECTRIC SHOCK , NEVER OPERATE COMPRESSOR WITH COVER COMPONENTS BF . M _ OR DAM - AGED . CONTINUE NEXT PAGE _ "
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HAZARD WHAT CAN HAPPEN HOW TO PREVENT IT RISK OF REPAIRS ATTEMPTED BY UNQUALIFIED ANY ELECTRICAL WIRING OR REPAIRS PERSONNEL CAN RESULT IN SERIOUS REQUIRED ON THIS PRODUCT SHU _ ELECTRICAL SHOCK INJURY OR DEATH BY ELECTROCU _ ON . PERFORMED BY AUTHORIZED SERVICE CEN - ( cont'd ) R _ IN ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES . ELECTRICAL GROUNDING : MAKE CERTAIN THAT THE ELECTRIC _ _ LIS PROVIDE ADEQUATE GROUNDING TO THIS _ . _ TO WHICH THE COMPRESSOR PRODUCT COULD RESULT IN SERIOUS CONNECTED PROVIDES PROPER ELECTRI - INJURY OR DEATH FROM ELECTROCUTION . CAL GROUNDING . CORRECT VOLTAGE AND SEE GROUNDING INSTRUCTIONS , ADEQUATE FUSE PROTECTION . THE COMPRESSED AIR STREAM _ . _ ALWAYS WEAR ANSI Z87 . 1 APpIROVED RISK FROM SOFT TISSUE DAMAGE TO EXPOSED SKIN SAFETY GLASSES WITH SIDE SHIELDS WHEN FLYING OBJECTS AND CAN PROPEL DIRT , CHIPS , USING THE COMPRESSOR . AND SMALL OBJECTS AT HIGHGE _ O _ F _ , RESULTING IN PROPERTY DAMA NEVER POINT ANY NOZZLE OR SPRAYEF OR PERSONAL INJURY . TOWARD ANY PART OF THE BODY OR AT OTHER PEOPLE OR ANIMALS , ALWAYS TURN THE COMPRESSOR OFF AND FROM THE AIR HOSE AND TANK BEFORE ATTEMPTING MAINTENANCE A1 - FACHING TOOLS OR ACCESSORIES . RISK TO BREATHING THE _ FROM YOUR COM - NEVER INHALE AIR FROM THE COMPRESSOF PRESSOR _ THEX - EITHER DIRECTLY OR FROM A BREATHING AIR STREAM MAY CONTAIN CARBON MONO DEVICE CONNECTED TO THE COMPRESSOR . IDE , TOXIC VAPORS OR SOLID PARTICLES . WORK IN AN AREA WITH GOOD CROSS - _ . , t1 SPRAYED MATERIALS SUCH AS PAINT , PAINT VENTILATION , READ AND FOLLOW THE SOLVENTS , PAINT REMOVER , INSECTICIDES , SAFETY INSTRUCTIONS PROVIDED ON THE WEED KILLERS , ETC . . CONTAIN HARMFUL LABEL OR SAFETY DATA SHEETS Y _ AND POISONS . MATERIAL YOU ARE SPRAYING . U _ NIOSH / MSHA APPROVED RESPIRATOR DE - SIGNED FOR USE WITH YOUR SPECIFIC APPLICATION . RISK OF FALLING A PORTABLE COMPRESSOR CAN FALL FROM ALWAYS OPERATE COMPRESSOR IN A A TABLE , WORKBENCH OR ROOF CAUSING TO PREVENT DAMAGE TO THE COMPRESSOR WHICH ACCIDENTAL MOVEMENT OF THE UNIT , COULD RESULT IN SERIOUS INJURy , O _ = A ROOF OR OTHER _ = EY _ U _ - TIO _ P _ _ NJ _ = _ AHIROSE TO REACH HIGH LOC / _ - TIONS . RISK FROM THE COMPRESSOR CYCLES AUTOMATI - ALWAYS TURN OFF THE _ O _ _ . _ THE PRESSURE SWITCH IS IN BLEED PRESSURE FROM THE AIR HOSE AMn MOVING PARTS TANK . AND UNPLUG FROM ELECTRICAl OUTLET BEFORE PERFORMING MAINTE - NANCE OR ATTACHING TOOLS AND ACCES - MOVING PARTS CAN CAUSE SERIOUS IN - DO NOT REMOVE THE PROTECTIVE COVERS _ J _ OR DAMAGE JE THEY COME INTO FROM THIS PRODUCT . _ RTHES CONTACT WITH YOU OR YOUR CLOTHING . COMPRESSOR WITH GUARDS OR COVE WHICH ARE DAMAGED OR BF , , MQ . _ ED = ATTEMPTING TO OPERATE OR REPAIRR ANY REPAIRS REQUIRED ON THIS PRODUCTn COMPRESSOR WITH PROTECTIVE SHROIIn SHOULD BE PERFORMED BY AUTHORi7F REMOVED CAN EXPOSE YOU TO MOVING SERVICE CENTER PERSONNEL - PARTS AND ELECTRICAL SHOCK , _ METAL SUCH AS THE NEVER TOUCH ANY EXPOSED METAL PARTS RISK OF BURNS COMPRESSOR HEAD OR OUTLET TUBE CAN C _ DURING OR IMMEDIATELY AFTER OPERATION . . . _ EB _ FOR SEVERAL MINUTES AFTER OPERATION . TMPCPOL - - 5 / 1197
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GLOSSARY ON - RECEIPT INSPECTION CFM : Cubic feet per minute . Each air compressor outfit is carefully tested and checked before shipment . With improper handling , damage may result SCFM : Standard cubic feet per minute ; a unit of measure of in transit and cause problems in compressor operation . air delivery . Immediately upon arrival , check equipment for both con - PSIG : Pounds per square inch gauge ; a unit of measure of cealed and visible damages to avoid expenses being incurred pressure . to correct such problems . This should be done regardless of ASME : American Society of Mechanical Engineers ; made , any visible signs of damage to the shipping container . If this tested , inspected and registered to meet the standards of product was shipped directly to you , report any damages to ASME . carrier and arrange for inspection of goods immediately . U . L . Listed : Products with the U . L . mark are listed by For the location or a listing of the nearest DeVilbiss Underwriters Laboratories , Inc . ( U . L . ) . Samples of these prod - Air Power Authorized Warranty Service Center , call our toll ucts have been evaluated by U . L . and meet the applicable free number at 1 - 800 - 888 - 2468 , Ext , 2 . U . L Standards of Safety . California Code : Unit may comply with California Code 462 DESCRIPTION OF OPERATION ( L ) ( 2 ) / ( M ) ( 2 ) . Specification / model label is on the side of the Drain Valve : The drain valve is located at the base of the air tank on units that comply with California Code . tank and is used to drain condensation at the end of each use . Cut - In Pressure : While the motor is off , air tank pressure Motor Thermal Overload Protector : The electric motor has drops as you continue to use your accessory or air tool . When an automatic thermal overload protector . If the motor over - the tank pressure drops to a certain low level the motor will heatsfor any reason , the thermal overload protector wilJshut restart automatically . The low pressure at which the motor off the motor . The motor must be allowed to cool before automatically re - starts is called " cut - in pressure . " restarting . Cut - Out Pressure : When you turn on your air compressor ON / AUTO - OFF Switch ( Pressure Switch ) : Turn this and it begins to run , air pressure in the air tank begins to build . switch ON to provide automatic power to the pressure switch It builds to a certain high pressure before the motor automati - andOFF to remove power at the end of each use . The pressure cally shuts off - protecting your air tank from pressure higher switch automatically starts the motor when the air tank than its capacity . The highpressure at which the motor shuts pressure drops below the factory set " cut - in " pressure . It off is called " cut - out pressure . " stops the motor when the air tank pressure reaches the factory set " cut - out " pressure . Air Intake Filter : This filter is designed to clean air coming into the pump . This tilter must always be clean and ventilation DUTY CYCLE openings free from obstructions . See " Maintenance " . All DeVilbiss Air Power manufactured air compressors Air Compressor Pump : To compress air , the pistons moves should be operated on not more than a 50 % duty cycle . up and down in the cylinder . On the downstroke , air is drawn This means an air compressor that pumps air more than in through the air intake valves . The exhaust valve remains 50 % of one hour , is considered misuse , because the air closed . On the upstroke of the piston , air is compressed . The compressor is undersized for the required air demand . intake valves close and compressed air is forced out through Maximum compressor pumping time per hour is 30 the exhaust valve , through the outlet tube , through the check minutes . valve and into the air tank . Working air is not available until the compressor has raised the air tank pressure above that required at the air outlet . Check Valve : When the air compressor is operating , the GENERAL INFORMATION check valve is " open " , allowing compressed air to enter the air tank . When the air compressor reaches " cut - our ' pres - You have purchased an air compressor unit consisting of an sure , the check valve " closes " , allowing air pressure to remain aluminum 2 cylinder , single - stage air compressor pump ( with inside the air tank . cast iron sleeves ) , an air tank , wheels , handle , associated controls and instruments . Pressure Release Valve : The pressure release valve lo - cated on the side of the pressure switch , is designed to Your air compressor can be used for operating paint spray automatically release compressed air from the compressor guns , air tools , caulking guns , grease guns , air brushes , head and the outlet tube when the air compressor reaches sandblasters , inflating tires and plastic toys , spraying weed " cut - out " pressure or is shut off . If the air is not released , the killers , insecticides , etc . An air pressure regulator is required motor will try to start , but will be unable to . The pressure for most of these applications . release valve allows the motor to restart freely . When the An air line filter is usually required for removal of moisture and motor stops running , air will be heard escaping from the valve oil vapor in compressed air when a paint spray gun is used . for a few seconds . No air should be heard leaking when the An in - line lubricator is usually required for air tools to prolong motor is running , or continuous leaking after unitreaches cut - tool life . out pressure . Separate air transformers which combine the functions of air Safety Valve : If the pressure switch does not shut off the air regulation and / or moisture end dirt removal should be used compressor at its cut - out pressure setting , the safety valve where applicable . will protect against high pressure by " popping out " at its factory set pressure ( slightly higher than the pressure switch cut - out setting ) . 5
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Installing Handle DESCRIPTION OF OPERATION ( cont'd ) 1 . Insert the open end of the handle under the saddle ( Fig . 1 ) . Outlet Pressure Gauge : The outlet pressure gauge indi - Before attaching handle , you may have to pullthe open cates the air pressure available at the outlet side of the ends of the handle apart so they fit tightly against the side regulator . This pressure is controlled by the regulator and is of the saddle . Lookingin from the open end of the saddle , always less or equal to the tank pressure . See " Operating positionthe handle toward the two bent tabs , on the inside Procedures " . walls of the saddle . Slowly push the open ends of the Tank Pressure Gauge : The tank pressure gauge indicates handle onto both tabs at the same time ( Fig . 2 ) . Continue the reserve air pressure in the tank . pushing the handle into the saddle until the holeson the Regulator : The air pressure coming from the air tank is side of the saddle and handle are in line . controlled by the regulator knob . Turn the knob clockwise to 2 . Guide the straight end of each retaining clip through the increase pressure and counterclockwise to decrease pres - saddle hole and both handle holes ( Fig . 3 ) . sure . To avoid minor readjustment after making a change in 3 . Rotate each retaining c _ ipclockwise and press down until pressure setting , always approach the desired pressure from it snaps into place overthe pull handle ( Fig . 4 ) . a lower pressure . When reducing from a higher to a lower 4 . If the handle has excessive movement , it is improperly setting , first reduce to some pressure less than that desired , installed , Check the following . then bring up to the desired pressure . Depending on the air A . Are both tabs inside the handle ( Step # 1 ) ? requirements of each particular accessory , the cutlet regu - B . Does each clip passthrough both the saddle and lated air pressure may have to be adjusted while you are handle ( Step # 2 ) ? operating the accessory . ASSEMBLY INSTRUCTIONS Items Needed for Assembly • a 9 / 16 " socket or open - end wrench for attaching the wheels • a 3 / 8 " open - end wrench to tighten handle screws Installing Wheels , Handles , Rubber Foot Strip FIG . 1 FIG . 2 It may be necessary to brace or support one end of the outfit when attaching the wheels because the air compressor will have a tendency to tip . L _ ÷ 1 . Remove the protective paper strip from the adhesive - backed rubber foot strip . Attack the rubber foot strip to the bottom of the air tank leg . Press firmly into place . 2 . The leg bracket on the underside of the air compressor tank has 2 holes on each side for mounting the wheels . Place one shoulder bolt through the hole in a wheel . On _ IJ _ N _ models with 10 " wheels , push the bolt through the TOP K _ NO _ BaTS hole of the leg bracket . For models with 8 " wheels , push G _ the bolt through the BOTTOM hole of the leg bracket . FIG . 3 Screw on one hex locking nut . The special locking nut FIG . 4 does not turn freely . Tighten the nut firmly until it contacts the tank leg . The outfit will sit level if the wheels are INSTALLATION AND BREAK - IN properly installed . PROCEDURES NOTE Location of the Air Compressor The side of the wheel , that the hub protrudes out past the wheel edge , should be bolted to the Operate the air compressor in a clean , dry and well ventilated compressor leg . area . The fan bladed flywheel must be kept clear of obstruc - tions that could interfere with the flow of air through the air intake filter . The pump crankcase and head are designed with fins to provide proper cooling . THE WHEELS AND HANDLE DO NOT PROVIDE If humidity is high , an air filter can be installed on the air outlet ADEQUATE CLEARANCE , STABILITY OR SUP - adapter to remove excessive moisture . Closely follow the PORT FOR PULLING THE UNIT UP AND DOWN instructions packaged with the filter for proper installation . It STAIRS OR STEPS . THE UNIT MUST BE UFTED must be installed as close as possible to the accessory . Do OR PUSHED UP A RAMP . DO NOT LIFT THE UNIT not place the air compressor where heat is excessive . BY THE MANIFOLD ASSEMBLY . THE UNIT CAN BE DAMAGED . When locating the compressor outside , make sure there is a mimum of 12 inches on each side of the compressor . There must be fresh air flow for proper cooling . DO NOT ALLOW THE COMPRESSOR TO GET WET . 6
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Place unit on a level surface . Remove oil fill plug and slowly VoltageandCircuitProtection add a compressor oil such as Castrol Heavy Duty 30 weight Refer to your Parts Manual for voltage and circuit protection until it is even with the top of the oil fill hole . ( It must not be requirements of your compressor . Use only a fuse or circuit allowed to be lower than 3 / 8 " - - 6 threads down - - from the breaker that is the same rating as the branch circuit the air top at any time . ) When filling the crankcase , the oil flows very compressor is operated on . Ifthe compressor is connected to slowly into the pump . If the oil is added too quickly , it will a circuit protected by fuses , use only dual element time delay overflow and appear to be full . Crankcase off capacity is 16 fuses , as noted in the Parts Manual . fluid ounces . Replace oil fill plug . rl _ mJ dIs ] _ 1 NOTE Certain air compressors can be converted from Drain and refill the compressor pump crank - 120V to 240V operation . When converting an case after the first 100 hours of operation . air compressor to 240V operation , the attached three - prong 120V = ord assembly must be replaced with a three - pronged 240V GROUNDING INSTRUCTIONS cord assembly that can be purchased through an Authorized Warranty Service Center . To locate an Authorized Warranty Service Center RISK OF ELECTRICAL SHOCI ( J In the event of a nearest you , call us at 1 - 800 - 888 - 2468 , Ext . short circuit , grounding reduces the risk of 2 , then 2 . shock by providing an escape wire for the electric current . This air compressor must be Some models have a dual voltage motor , 120 and 240 volt . properly grounded . They are wired for 120 volt but can be converted to 240 volt operation . Instructions for connecting the motor for operation The air compressor is equipped with a cord having a ground - at 240 volt can be found printed on the label attached to the ing wire with an appropriate grounding plug . The plug must be side of the motor . used with an outlet that has been installed and grounded in accordance with all local codes and ordinances . The outlet PM [ s _ . 4d ! l [ * ] _ 1 must have the same configuration as the plug . See illustra - Certain air compressor models san be operated tion . DO NOT USE AN ADAPTER . on a 15 amp circuit If : 1 . Voltage supply to circuit is normal . Inspect the plug and cord before each use . Do not use if 2 . Circuit is not used to supply any other there are signs of damage . electrical needs ( lights , appliances , etc . ) 3 . Extension cords comply with specifications in this manual . 4 . Circuit is equipped with a 15 amp circuit IMPROPER GROUNDING CAN RESULT IN ELEC - breaker or 15 amp time delay fuse . TRICAL SHOCK . Extension Cords Do not modify the plug that has been provided . If it does not To avoid voltage drop and power loss to the motor , and to fit the available outlet , the correct outlet should be installed prevent overheating , use extra air hose instead of an exten - by a qualified electrician . sion cord . If repairingor replacing cord or plug , the grounding wire must If an extension cord must be used : be kept separate from the current - carrying wires . Never • use only a 3 - wire extension cord that has a 3 - blade ground - connect the grounding wire to a flat blade plug terminal . The ing plug and s 3 - slot receptacle that willaccept the plug on grounding wire has insulation with an outer surface that is the extension cord . green - with or without yellow stripes . • make sure the extension cord is in good condition . If these grounding instructions are not completely under - • the extension cord should be no longer than 50 feet . stood , or if in doubt as to whether the compressor is properly • the minimum wire size is 12 gauge ( AWG ) . ( Wire size in - grounded , have the installation checked by a qualified elec - creases as gauge number decreases . 10 AWG and 8 AWG trician . may also be used . DO NOT USE 14 AWG or 16 AWG . ) Lubrication and Oil Lf _ [ tT . . . tl ] ll [ o ] _ I Multi - Viscosity motor oils , like 10W30 , shouldnot be 120 Volt aodals 24O VMt Models used inanair cornpressor . They leave carbon depo6 - its on critical components , thus reducing porfor - Whttm manse and compressor life . Como _ are shim ) ed without oil . Asman amount of oil may be present inthe pump upon receipt ofthe air compressor . This is duets planttssting and does not meanthat the pump € ontains oil . Do not attempt to eperatethis air compresssrwithout first adding oil to the crankcase . Sedous damage can result from even limited operation unless filled with oil and bro - ken in co _ ectly . Make sure to closely follow initial start - up procedures . 7
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4 . Clean or blow off fins or any part of compressor that Piping collects dust and dirt . Compressor will run cooler and provide longer service . 5 . Before attaching an air hose or accessory make sure Plastic or PVC pipe is not designed for use with the pressure switch lever is in the " OFF " position . compressed air . Regardless of its indicated pressure rating , plastic pipe can burst from air Close the air regulator outlet by turning it counterclock - pressure . Use only metal pipe for air distribu - wise . tion lines . 6 . Attach hose and accessory If a pipe line is necessary , use pipe that is the same size as Start the compressor outfit and check the following : the air tank outlet . Piping that is too small will restrict the flow 1 . With the outlet valve closed , start the compressor of air . If piping is over 100 feet long , use the next larger size . outfit . Allow the outfit to pump up to cut - off Bury underground lines below the frost line and avoid pockets pressure . where condensation can gather and freeze . Apply pressure 2 . Make sure that all controls are operating correctly . before underground lines are covered to make sure all pipe Refer to " Description of Operation " section of this joints are free of leaks . manual . Connect the piping to the 3 / 8 " NPT air outlet opening at the 3 . Check all line fittings and piping for air leaks . Even end of the air tank . minor leaks can cause the compressor to over work , resulting in premature breakdown or Additional Regulators and Controls unsatisfactory performance . 4 . Check for any unusual vibration and noise . Since the air tank pressure is usually greater than that which 5 . Check for oil leaks . Correct any leaks found . is needed , a separate regulator is employed to control the air 6 . Open shutoff valve . Your outfit is ready for use . pressure ahead of any individual air driven device . Separate air transformers which combine the function of air regulation , moisture and dirt removal should be used where applicable . TOO MUCH AIR PRESSURE CAUSES A HAZARD - OUS RISK OF BURSTING . CHECK THE Break - in Procedures MANUFACTURERIS MAXIMUM PRESSURE RAT - ING FOB AIR TOOLS AND ACCESSORIES . THE Im [ _ T _ ltj _ eT _ l REGULATOR OUTLET PRESSURE MUST NEVER EXCEED THE MAXIMUM PRESSURE RATING . ON Serious damage may result if the following MODELS HAVING ONLY A SHUT - OFF VALVE , YOUG break - in instructions are not closely followed . MUST INSTALL A REGULATOR BEFORE USIN ACCESSORIES RATED AT LESS THAN 125 PSlG . This procedure is required : 1 , Before the air compressor is put into service . ( Before the hose is installed ) 2 . When the check valve is replaced . Compressed air frem the outfit may contain water condensation and oil mist . Do not spray until - 3 . When a complete compressor pump is replaced . tered air at an item that could be damaged by a . Set the pressure switch lever to the " OFF " position . moisture . Some air operated tools or devices amayir b . Plug the power cord into the correct branch circuit require filtered air . Read instructions for the receptacle . tool or device . c . Turn the regulator clockwise ( or open the shut - off valve ) , opening it fully , to prevent air pressure build - up When You Are Finished : in the tank . 7 . Set the pressure switch lever to " OFF " . d . Move the pressure switch lever to " ON / AUTO " . The 8 . Close the shutoff valve . compressor will start . 9 . Remove the air tool or accessory . e . Run the compressor for 30 minutes . Make sure the 10 . Open the shutoff valve and allow the air to slowly bleed regulator , or shut - off valve , is open and there is no tank from the tank . Close shutoff valve when tank pressure pressure build - up . is approximately 20 PSI . f . After 30 minutes , close the regulator by turning it counterclockwise or close the shut - off valve by turning the knob clockwise . The air receiver will fill to cut - out pressure and the motor will stop . The compres - DRAIN TANK DAILY . WATER WILL CONDENSE IN sor is now ready for use . THE AIR TANK . IF NOT DRAINED , WATER WILL CORRODE AND WEAKEN AIR TANK , CAUSING A RISK OF AIR TANK RUPTURE . OPERATING PROCEDURES Daily Start - Up Checklist 11 . With tank pressure at approximately 20 PSI , open the Perform the following checks before starting the compressor drain cock and allow moisture to drain . outfit . NOTE 1 . Make sure that nothing is blocking the belt guard air If the drain cockvalve is plugged , release all air openings or air filter inlet . pressure . The valve can then be removed , cleaned 2 . Pull the ring on all safety valve to make sure the and reinstalled . valve moves freely and smoothly . 12 . After the water has been drained , close the drain cock . 3 . Check the oil level ; add oil if necessary . The air compressor can now be stored . 8
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A dirty air filter will not allow the compressor to operate at full MAINTENANCE capacity . Before you use the compressor , check the air filter to be sure it is clean . UNIT CYCLES AUTOMATICALLY WHEN POWER If it is dirty , replace it with a new filter . On some models , the IS ON . DURING MAINTENANCE , YOU COULD BE filter may be removed by using a pair of needle nosed pliers EXPOSED TO VOLTAGE SOURCES , COM - or a screwdriver . Pull or pry out the old filter . Push inthe new PRESSED AIR OR MOVING PARTS . PERSONAL air filter . Other models require removal of the belt guard and / INJURIES CAN OCCUR . UNPLUG THE UNIT AND or filter retainer . BLEED OFF ALL AIR TANK PRESSURE BEFORE DOING ANY MAINTENANCE OR REPAIR . NEVER Oil - Checking and Changing OPERATE THE UNIT WITH THE BELT GUARD REMOVED . Overfilling with oil will cause premature com - To ensure efficient operation and longer life of the air com - pressor failure . Do not overfill . pressor outfit , e routine maintenance schedule should be prepared and followed . The following routine maintenance Check oil level in the crankcase daily . Remove the oil fill olua . schedule is geared to an outfit in a normal working environ - The oil level should be even with the too of the fill hole and must ment operating on a daily basis . If necessary , the schedule not be allowed to be lower than 3 / 8 " from the toe ( 6 threads ) should be modified to suit the conditions under which your It is recommended that the oil be changed after compressor is used . The modifications will depend upon the every 100 hours of operation . To drain the oil , remove the oil hours of operation and the working environment . Compressor drain plug and collect the oil in a suitable container . Be sure outfits in an extremely dirty and / or hostile environment will to replace the plug securely before adding new oil . Use a require a greater frequency of all maintenance checks . Lubri - compressor oil such as Castrol Heavy Duty 30 weight . Crank - cate compressor motor ( if required ) according to case oil capacity is 16 fluid ounces ( 473.2 ml ) . manufectursr's instructions , which are attached to your motor . Routine Maintenance Schedule CheckValve - Inspection and Replacement Daily : Remove and inspect the check valve at least once a year or more often if the compressor is heavily used . Moisture and 1 . Check oil level . Add if necessary . other contaminants in the hot compressed air will cause an 2 . Drain water from the air tank , any moisture separators or transformers , accumulation of a carbon - like residue on the working parts . If the valve has heavy carbon build - up , it should be replaced . 3 . Check for any unusual noise and / or vibration . Use the following procedure to inspect , clean or replace the 4 . Manually check all safety valves to make sure they are check valve . operating properly . 5 . Inspect for oil leaks and repair any leaks found . 1 . Unplug compressor . Release air pressure from the air 6 . Inspect air filter , replace if necessary . tank . 2 . Loosen the top and bottom tube nuts and remove the Every 40 Hours of Operation : outlet tube . 1 . Clean and inspect the air intake filter ; replace if 3 . Unscrew the check valve ( turn counterclockwise ) using necesseary . socket wrench ( 7 / 8 " ) . 2 . inspect condition of drive belt ; replace if necessary . 4 . Checkthatthevalvedisc moves freelyandthatthespring Every 100 Hours of Operation : holds the disc in the upper , closed position . The check f . Drainand refillcompressor crankcase with 16fluid ounces valve may be cleaned with a solvent . ( 473.2 ml ) of clean compressor or Castrol Heavy Duty 30 5 . Apply sealant to the check valve threads . Reinstall the weight . check valve ( turn clockwise ) . Do not overtighten . 2 . Incrsase frequency of oil changes if humidity or opersting 6 . Replace the outlet tube and tighten top and bottom tube conditions are extreme . nuts . Every 160 Hours of Operation : 1 . Check drive belt tension ; adjust if necessary . ( Refer to Safety Valve - Inspection and Replacement SERVICE INSTRUCTIONS in this manual . ) 2 , inspect air lines and fittings for leaks ; correct as neces - sary , 3 . Check the alignment of the motor pulley to the flywheel . IF THE SAFETY VALVE DOES NOT WORK PROP - If necessary , align to within 1 / 32 inch on centerline . ERLY , OVER - PRESSURIZATION MAY OCCUR Each Year of Operation or if a Problem CAUSING AIR TANK RUPTURE OR EXPLOSION . DAILY PULL THE RING ON THE SAFETY VALVE is Suspected : TO MAKE SURE THAT THE SAFETY VALVE OP - Check condition of air compressor pump intake and exhaust ERATES FREELY . IF THE VALVE IS STUCK OR valves . Replace if damaged or worn out . DOES NOT OPERATE SMOOTHLY , IT MUST BEE REPLACED WITH A VALVE HAVING THE SAM SERVICE INSTRUCTIONS PRESSURE RATING . Air Filter - Inspection and Replacement Keep the air filter cleon at oil times . Do not operate the compressor with the air filter re - moved . 9
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Belt - Replacement NOTE If the overload protector shuts the motor off frequently , check for a possible voltage prob - rlVJVl ; 1 : 1 _ 11 _ [ d lem . Low voltage can also be suspected when : 1 . The motor does not get up to full power or SERIOUS INJURY OR DAMAGE MAY OCCUR IF speed . PARTS OF THE BODY OR LOOSE ITEMS GET 2 . Fuses blow out when the motor is started . CAUGHT IN MOVING PARTS . NEVER OPERATE 3 . Lights dim when motor is started , and re THE OUTFIT WITH THE BELT GUARD REMOVED . main dim while it is running . THE BELT GUARD SHOULD BE REMOVED ONLY WHEN THE COMPRESSOR IS UNPLUGGED . Belt Guard - Removal and Installation Pulley and Flywheel - Alignment ( Refer to Outfit Parts Listing , ff required . ) The compressor flywheel and motor pulley grooves must be 1 . Move the " ON / AUTO - OFF " lever to the " OFF " position . in - line within 1 / 32 " to assure belt alignment within sheave Unplug the compressor . Release all air tank pressure . grooves . To check alignment , unplug compressor and re - 2 . On one - piece belt guards , remove the two beltguard move the beltguard . Place a straight edge against the out - screws on the bottom front of the outfit . side of the flywheel and measure the distance from it to the 3 . On two - peice belt guards , remove the front of the belt nearest groove . Alignment is achieved when the otherend of guard by disengaging the snaps . Insert a flat bladed the straight edge is within 1 / 32 " of the measured dimension screwdriver at each snap location and pry the beltguard at the pulley grooves . apart . Replace Belt Servicing Intake and Exhaust Valves 1 . Unplug compressor . The intake and exhaust valves as well asthe valve plates and 2 . Remove ( one - piece ) beltguard , or front of ( two - piece ) cylinder head will , overa period of time , accumulate a residue beltguard as described above . of carbon - like material on their surfaces . The material will NOTE decrease the efficiency of the compressor . These compo - Loosen the wing nut at the hold down plate . The nents should be inspected whenever a problem is suspected motor can be tilted to allow for easy removal or and cleaned or replaced with new parts . Refer to " Outfit installation of the belt . PartsListing " , if required . Use the following procedure to inspect the parts . 3 . Remove belt and replace . 1 . Unplug compressor and relieve all air pressure from NOTE the air tank . The belt must be centered over the grooves 2 . Disconnect the pressure release and outlet lines from on the flywheel and motor pulley . the air compressor . 3 . Remove the hardware securing the cylinder head and Adjust Belt Tension remove the cylinder head and valve plate . Adjust belt tension by tightening the wing nut until it makes contact with the washer , plus one additional turn . R _ TIVI _ , 1 _ : 111 _ [ € ] Pressure Switch - Replacement MANY SOLVENTS ARE HIGHLY FLAMMABLE AND A HEALTH HAZARD IF INHALED . ALWAYS OBSERVE THE SOLVENT MANUFACTURER'S SAFETY INSTRUCTIONS AND WARNINGS . PRESSURE LOADS BEYOND DESIGN LIMITS MAY CAUSE TANK RUPTURE OR EXPLOSION . 4 . Clean carbon deposits in head cavities and valve plates PRESSURE SWITCH OPERATION IS RELATED with lacquer thinner or other suitable solvent . TO MOTOR HP , TANK RATING AND SAFETY VALVE SE'n'ING . DO NOT ATTEMPT TO ADJUST , 5 . Clean the intake and exhaust valves with lacquer thinner REMOVE OR DEFEAT THE PRESSURE SWITCH , or other suitable solvent . Inspect valves ; replace if OR CHANGE AND MODIFY ANY PRESSURE CON - necessary . TROL RELATED DEVICE . IF REPLACEMENT IS NECESSARY , THE SAME RATED SWITCH MUST BE USED . CONTACT A DEVILBISS AIR POWER NOTE AUTHORIZED SERVICE CENTER FOR REPLACE - Do not use gasket cement on any gasket MENT . surface as this may clog compressor valve cavities and airflow areas . Motor Overload Protector - Reset The motor has a manual thermal overload protector . If the 6 . Reinstall valve plate and gaskets . motor overheats for any reason , the overload protector will 7 . Install the cylinder head . Snug mounting screws and shut off the motor . The motor must be allowed to cool down studs tight , then torque to 25 to 30 foot pounds starting before restarting . Turn the unit off . To restart , depress the red at the center and working toward the outside . reset button located on the end of the motor and turn ON / 8 . Reconnect the pressure release and outlet lines to the AUTO - OFF switch to the ON position . compressor pump . 10
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STORAGE OF COMPRESSOR OUTFIT 1 . Review the " Maintenance " section on the preceding 3 . Remove any air tool or accessory . pages and perform scheduled maintenance as 4 . Protect the electrical cord and air hose from damage necessary . Drain the water from the air tank . ( such as being stepped on or run over ) . Wind them loosely 2 . Set the ON / AUTO - OFF switch to the " OFF " position , and around the outfit handle . unplug the unit . 5 . Store the compressor in a clean and dry location . TROUBLESHOOTING GUIDE PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES , MOVING PARTS OR COMPRESSED AIR SOURCES . PERSONAL INJURY MAY OCCUR . PRIOR TO ATTEMPTING ANY REPAIRS , UNPLUG THE COMPRESSOR AND BLEED OFF ALL TANK AIR PRESSURE . PROBLEM CAUSE CORRECTION Excessive tank p _ ssure - safety valve Pressureswitch does not shut off motor Move the pressure switch lever to the pops off , when compressor reaches " cut - out " " OFF " position . If the outfit doesn't shut pressure . off , and the electrical contacts are welded together , replace the pressure switch . If the contacts are good , check to see if the pin in the bottom of the pressure release valve is stuck . If it does not move freely , replace the valve . Pressure switch " cut - out " too high . Return the outfit to an Authorized War - ranty Service Center to check , remove or replace switch . Air leaks at fittings . Tube fittings are not tight enough . Tighten fittings where air can be heard escaping . Check fittings with soapy wa - ter solution . DO NOT OVER - TIGHTEN . Air leeks at or inside check valve . Defective or dirty check valve . A defective check valve results in a constant air leak at the pressure release valve when there is pressure in the tank and the compressor is shut off . Remove and clean or replace check valve . DO NOT OVER - TIGHTEN . Air leaks at pressure switch Defective pressure switch release valve . Remove and replace the release valve . release valve . Defective check valve . A defective check valve results in a constant air leak at the pressure release valve when there is pressure in the tank and the compressor is shut off . Remove and clean or replace check valve . DO NOT OVER - TIGHTEN . Air leaks in air tank or at air tank welds . Defective air tank . Air tank must be replaced . Do not repair the leak . DO NOT DRILL INTO , WELD ORK OTHERWISE MODIFY AIR TAN OR IT WILL WEAKEN . THE TANK CAN RUPTURE OR EXPLODE . Air leak from safety valve . Possible defect in safety valve Operate safety valve manually by pull - ing on ring . If valve still leaks , it must be replaced . 11
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TROUBLESHOOTING GUIDE ( CONT'D ) CAUSE CORREC'I1ON PROBLEM Restricted or defective check valve . Remove and clean or replace . Knocking noise Loose pulley . Torque pulley set screw , see page 10 . Low oil level . Maintain prescribed oil level . Add oil . Loose flywheel . Torque screw 15 - 20 ft . Ibs . Loose compressor mounting screws . Check screws . Torque as required ( 15 - 20 ft . - Ibs . ) Loose belt . Tighten wing nut until it contacts the washer , plus one more turn . Adjust belt tension ( see " Belt Replace - Belt too tight . ment " . ) Remove the head and valve plate . Clean Carbon build - up . the valve plate and top of the piston . ( Be sure carbon does not fall into the cylin - der . ) Reassemble to 25 - 30 ft . Ibs . using new gasket and torque screws . Let the motor cool off and reset switch Motor will not run . Motor overload protection switch has tripped . by pressing the red button located on the end of the motor . If the overload still trips , check for defective capacitor . Possible defective capacitor . Return to Service Center for inspection or replacement if necessary . Possible defective motor . Have checked at a local Authorized Warranty Service Center . Tank pressure exceeds pressure switch Motor will start automatically when tank " cut - in " pressure . pressure drops below " cut - in " pressure of oressure switch . Check valve stuck open - fails to relieve Remove and clean , or replace . DO NOT OVER - TIGHTEN . head pressure ; motor cannot start . Loose electrical connections . Check wiring connection inside pres - sureswitch and motor terminalbox area . 1 . Check fuse box for blown fuse and Pressure release valve on pressure switch has not unloaded head pressure . replace if necessary . Reset circuit breaker . Do not use a fuse or circuit Paint spray on internal motor parts . breaker with higher rating than that specified for your particular branch circuit . Loose electrical connections . 2 . Check for proper fuse ; only Buss " Fusetron " Type T fuses are acceptable . 3 . Check for low voltage conditions . 4 . Remove check valve and clean or replace if it is stuck open or closed . 5 . Disconnect any other electrical appli - ances from circuit . The compressor must operate on its own branch circuit . Pressure release valve on pressure 6 . Do not use an extension cord . Bleed switch has not unloaded head pressure . the line by pushing the lever on the pressure switch to the OFF position , opening the pressure release valve . If the valve still Paint spray on internal motor parts . doesn't open , it must be replaced . Have checked at an Authorized Warranty Service Center . Do not operate the compressor in the spray area . See Flammable Vapor Warning . 12
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TROUBLESHOOTING GUIDE ( CONT'D ) PROBLEM CAUSE CORRECTION Restricted air intake . Replace filter . Dirty air filter , Compressor is not supplying enough air Prolonged excessive use of air . Decrease amount of air usage . Check the accessory air requirement . If to operate accessories . Compressor is not large enough for air requirement . it is higherthan theCFM , SCFM or pres - sure supplied by your air compressor , you need a larger compressor , Restricted air intake filter . Clean or replace air intake filter . Do not operate the compressor in the paint spray area . Loose belt . Adjust belt tension . Hole in hose . Check and replace if required . Check valve restricted , Remove and clean or replace , Air leaks . Tighten fittings . ( See " Air Leaks " section of " Troubleshooting Guide " . ) Excessive belt wear , Belt is too loose or tight . Adjust tension instructions . ( See " Belt Asjustment or Replacement " section in this manual . Loose pulley . Check for worn keyway or pulley bore . Also check for bent motor shaft . Re - ) lace parts if necessary . Pulley misalignment . Motor pulleyand flywheel mustbe inline within 1 / 32 " . ( See " Pulley and Flywheel - Alignment " section in this manual , ) Squealing sound . Loose belt . Adjust belt tension . ( See " Belt Replace - ment " section in this manual . ) Add oil to top of fill hole in base . There is no oil in the compressor . It is normal for " some " pressure drop to Pressure reading on the regulated pres - If there is an excessive amount of pres - occur . sure gauge drops when an accessory is sure drop when the accessory is used , used . adjust the regulator . NOTE Adjust the regulated pressure under flow conditions ( while the accessory is being used ) , Regulator knob - continuous air leak . Clean or replace regulator or internal Dirty or damaged regulator internalparts . _ arts . Regulator will not shut off at air outlet . 13
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SERVICE NOTES 14
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SERVICE NOTES 15
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- . - GENERAL MANUAL FOR OIL LUBRICATED m SINGLE STAGE PORTABLE AIR COMPRESSOR SERVICE NOTES DeVilbiss Air Power Company • 213 Industrial Drive • Jackson , TN 38301 - 9615
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250E20AD I | I 20 18 18 2g September , 2000r OII FreeRe _ 3alri _ u _ d TAB : ° . 8 Harsenower - 81nale Cylinde
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250E20AD ( cont'd ) KEY NO . 1 DAG - 487 Shroud Asey . ( Includes # 2 , 3 , 4 ) 2 91892588 Screw ( 12 used ) + 3 - - - Front Cover ( Included with # 1 ) + 4 - 11 Side Cover ( Indudecl with # 1 ) 5 OAC - 185 Outlet Tube 6 91895680 Screw ( 8 used ) ( torque 50 - 70 In / Ib ) 7 SSP - 7821 - 1 Nut ( torque 50 - 60 IrYlb ) 8 CAC - 1120 BracKet 9 C - M0 - 3018 - 4 Motor 2 1 / 2 HP 10 SSP - 7813 Silicone Sleeve 11 SSF - 505 Nut ( torque 100 - 120 In / Ib ) 12 CAC - 1098 Isolator 13A CAC - 1395 Baffle 138 DAC - 183 Finger Guard 13C SSF - 953 - ZN Self Tapping Screw 13D SS - 6505 - CD Washer 1 / 4 14 0A0 - 4293 Wheel ( 2 used ) 15 CAC - 80 Shoulder Bolt 16 SSF - 8080 - ZN Hax Nut ( 2 used ) 17 SSP - 1138 Reducar Bushing 18 SS - 2707 Bushing , Hex Reducer 19 TA - 4227 Drain Valve 20 DAC - 177 Handle 21 CAC - 4205 Cord Asey . ( motor to switch ) 22 97503734 Safety Valve 150 PSIG 23 C - GA - 345 Gauge 24 97182133 Tee ( 1 / 8 x 1 / 8 x 1 / 4 ) 25A DA0 - 175 Pressure Relief Tube 25B SSP - 9013 Tubing Insl'L 25C SSP - 7811 Nut Sleeve Assy . ( 1 / 4 " ) 28 0AC - 172 Manifold > 27 - - - ChecK Valve Poppet > 28 - - - Check Valve Body > 29 . . . . Check Valve Spring 30 9189632 Screw 31 C - GA - 345 Gauge ( 4 used ) 32 DAC - 180 Pressure Regulator 33 97511471 Manifold Cover 34 CAC - 1099 U - Channel 35 SUDL - 403 - 1 Cord Asey . ( line ) 38 DAC - 181 Pressure Switch + Keys3 and 4 oan only be piJrchasedas partof Key # 1 , DAC - 487 ShroudAssy . > Keys 27 , 28 and 29 aan only be purchasedas partof 97261176 Check Valve Kit . September , o2000r OII FreeRepaJrManual TAB : 2 . a Hortmpowsr - 81nalo Cvllnd
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250E20AD ( cont'd ) N _ . i TORQUE , 7 to 10 Ft . Lba . 7 to 10 Pt . L _ al . lOOto 120 In . Lbo . ° I 80 to 100 In . Lb , , 42to48 n . L . be . i September2 , 000 OIIFreeRet0alMr anual TAB : 2.11Honmoower - BlnuleCylinder
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250E20AD ( cant'd ) KEY PART NUMBER DEeCRIPTICN NO , X 37 Intake Filter Fastener 38 DAC - 143 Intake Filter X 39 . m = mJ Filter Screen X 4o Intake Muffler 41 KK - 49e7 Head 42 SSF - 6840 Stud 43 SSF - 990 Screw ( 3 used ) 44 DAC - 14O Flow Valve 45 CAC - 1175 Gasket 48 KK - 5040 Valve Plate Assembly ( includes valves , restrictors end screws ) 47 SBG - 8156 C - Ring * 48 Connecting Rod Assembly ( torque screw 30 - 35 in , Ibe . ) * 49 Cylinder Sleeve ( position locating mark toward motor ) 50 Z - M0m3018 - 4 Motor 2112 HP 51 Z - CAC - 4O88 Eccantric / Bssring Assembly ( includes 1 as . # 52 ) 52 Bearing ( can only be purchased as pert of # 51 ) 53 SSF - 3153 Screw ( eccentric , torque 50 - 60 in . Ibs . ) / 54 Squirrel Cage Fen / 55 Washer / 58 Screw # 10 - 24 x 3 / 8 " Long ( torque 30 - 35 in . Ibs . ) 57 DAC - 169 - 1 Baffle Bracket SSH - 8 Air Chuck H - 5796 Air Hose Asey . ( 1 / , $ " ID x 15 ' ) D26388 General Manual MP2 - 250E2OD - 1 Parts Manuel X Keys 37 , 39 , and 40 can only be purchased as part of KK - 4981 Intake Filter Kit ( includes one # 38 ) . * Keys 47 , 48 end 49 can only be purchased as pert of KK - 4835 Connecting Rod Kit . / Keys 54 , 55 and 56 can only be purchased ee pert of KK - 5018 Fan Kit . September , a2000lr Oil FreeRepair Manual TAB : e . e Honmoower - 81nail Cvllnd