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Series 1000 and 1500 16.19 . Pivot the subframe down . Be careful of the 17.3 . Remove the battery hold - down , remove the bat - spacer on the bolt and the hex flange bushing for tery and the battery tray . See Figure 17.3 . the steering shaft , they will fall out . 16.20 . You now have access to the cruise linkage and cam lock . You also have access the park brake linkage and locking plate . See Figure 16.20 . Battery Hold Down Cruise Control Rod . Parking Brake Rod Cam Lock Figure 17.3 17.4 . Pull the upper drive belt tensioner pulley rear - wards to provide slack in the belt , and roll the Figure 16.20 belt off of the tensioner pulley . See Figure 17.4 . 16.21 . Remove the hair pin clips on the linkages . Tensioner pulley Remove the linkages . 16.22 . Remove the nut and bolt holding the cruise cam and / or the park brake locking plate . 16.23 . Reassemble in reverse order . CAUTION : Make sure the linkage rods are routed properly before you swing the subframe 17 . TRACTION DRIVE BELT REPLACEMENT : CVT NOTE : There are two drive belts in the CVT sys - tem . Because they work together on the variable speed pulley , wear to one belt effects the perfor - mance of the other belt . It is strongly recom - Figure 17.4 mended that the belts be replaced as a set . 17.1 . Remove the cutting deck from the tractor . 17.5 . Carefully release the tensioner pulley . 17.2 . Tilt - up the seat and disconnect the battery cables ( ground cable first ) using a 7 / 16 â wrench . 24
Series 1000 and 1500 17.6 . Using the slack created by taking the belt off the 17.8 . Lift the sliding center partition of the variable tensioner pulley , slip the belt off of the transaxle speed pulley as far as it will go . This should pro - input pulley and the upper sheave of the variable vide enough clearance to slip the lower belt off of speed pulley and remove the belt from the trac - the variable speed pulley . tor . You may need to remove the transmission Variable speed pulley input pulley to get enough clearance to remove the belt . See Figure 17.6 . Transmission input pulley 17.9 . Locate the double idler pulley bracket beneath the tractor . See Figure 17.9 . Figure 17.6 17.7 . Loosen but do not remove the bracket that sup - ports the variable speed pulley using a 1 / 2 â wrench . See Figure 17.7 . Loosen these bolts Double idler Figure 17.9 NOTE : This is the pair of pulleys that moves in reaction to drive pedal input from the operator . The further the pedal is depressed , the further Figure 17.7 the bracket pivots , applying more tension to the belt . NOTE : On 2004 and earlier CVT models , the 17.10 . Slip the lower drive belt off of the pulleys . variable speed pulley was mounted directly to NOTE : On some 2004 and earlier models , it the transaxle housing . On those tractors , may be necessary to loosen but not remove the remove the variable speed pulley from the trac - rear - most of the two pulleys ( riding against the tor using a pair of 9 / 16 â wrenches . flat side of the belt ) to provide clearance to remove the belt . 25
Series 1000 and 1500 17.11 . Disconnect the plug for the PTO clutch wire . It is located on the right side of the tractor , just above NOTE : On some models you may have to the opening in the frame that the wire passes remove the belt guide on the engine . Remove through to reach the PTO clutch . the 1 / 2 â bolt securing the belt guide to the frame See Figure 17.11 . on the left hand side and slide the guide out of the hole on the right hand side . See Figure PTO clutch plug 17.12 . Bolt Figure 17.11 Figure 17.12 17.12 . Remove the bolt that holds the PTO clutch to the crankshaft using a 5 / 8 â wrench . 17.13 . Carefully lower the PTO clutch and any associ - See Figure 17.12 . ated hardware off of the crankshaft . 17.14 . Lower the drive pulley far enough to allow the belt to slip past the keepers that are stamped into the frame . Slip the belt off of the pulley and remove the pulley . See Figure 17.14 . Stamped belt keepers Figure 17.12 NOTE : If an impact wrench is unavailable it may be necessary to use an improvised piston stop or to hold the flywheel . Figure 17.14 NOTE : Keep track of the position of any spacers or washers that accompany the PTO clutch and crankshaft pulley . Several different configura - tions have been used . 26
Series 1000 and 1500 17.15 . Remove the belt from the tractor . â¢ The tractorâs forward ground speed should vary smoothly between 0 and 5.2 MPH when the NOTE : There were a small number of tractors drive pedal is depressed progressively to the made using a CVT drive and a 2 - speed end of itâs travel . ( L - H - N - R ) GT transaxle . The belt must pass over â¢ It is normal for the cruise control to hold a mow - the center mounted gear selector on these mod - ing speed that is about 10 % less than the 5.2 els for removal . Remove the knob from the gear MPH transport speed . selector , and remove the shift gait from the fender assembly to provide clearance . â¢ If the tractor performs as described , no adjust - ment is required . 17.16 . Assembly notes : â¢ Install the belts by reversing the order of the 18.2 . Diagnosis : If the tractor does not move at all , removal process . and the engine does not seem to be laboring as the pedal is depressed , the issue may be in the â¢ The engine drive pulley is installed on the drive CVT belt system , the shift linkage leading to the shaft with the key side facing down . transaxle , or within the transaxle itself . â¢ Line up the key on the PTO clutch during assem - 18.3 . To isolate the CVT belt system : bly . â¢ Turn - off the engine . â¢ There is a large flat washer that goes on top of the PTO clutch during assembly . â¢ Release the parking brake . â¢ Torque the PTO clutch bolt during assembly . â¢ Place the gear selector in any motion gear . â¢ When installing the belt guide , make sure that it â¢ Attempt to push the tractor . passes through the cutout in the PTO clutch . this â¢ If the tractor rolls , examine the shift linkage . acts as a anti - rotation bracket . See Figure 17.16 . â¢ If the wheels lock when a gear is engaged , the transaxle and shift linkage are not likely to be the problem . 18.4 . If the tractor does not move at all , and the engine seems to be laboring as the pedal is Cutout depressed , the issue may be in the brake , or within the transaxle itself : â¢ Turn - off the engine . â¢ Release the parking brake . â¢ Place the gear selector in Neutral . â¢ Attempt to push the tractor . â¢ If the tractor rolls with difficulty , examine the brakes as described in the â BRAKE ADJUST - Figure 17.16 MENT : CVT â section of this manual . 18 . DRIVESYSTEM ADJUSTMENT : CVT 18.5 . If the problem can be isolated to CVT belt drive system , make a visual inspection of the CVT belt 18.1 . Make an operational test of the tractor : drive system : â¢ The tractor should not â creep â when the trans - â¢ Turn the engine off , and allow it to cool before mission is in gear and the drive pedal is not starting to work on the tractor . depressed . â¢ Remove the cutting deck . â¢ On level ground , with the brake released , the gear selector should slip smoothly into gear . It is â¢ Lift the seat . normal for gear engagement to be more difficult â¢ Disconnect the battery cables , negative cable on a grade , or with the brakes applied because it first , using a 7 / 16 â wrench is more difficult for the drive dogs to engage under load or bind . â¢ Remove the battery hold - down . 27