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Series 1000 and 1500 19 . BRAKE ADJUSTMENT : CVT 19.8 . CVT - driven transaxles use a self locking nut on the brake adjustment . See Figure 19.8 . 19.1 . On CVT - driven lawn and garden tractors , most of the braking force is generated within the tran - saxle : when the drive pedal is released , the drive ratio changes , slowing the tractor . The brake brings the tractor to a complete stop , and func - tions as a parking brake . 19.2 . When properly adjusted , the brake should do two things : it should stop and hold the tractor Lock nut when applied , and it should not drag when released . 19.3 . To check that the brakes hold the tractor : â€¢ Place the gear selector in Neutral . â€¢ Set the parking brake . â€¢ Attempt to push the tractor . â€¢ The wheels should skid without rotating . Figure 19.8 â€¢ If the brakes do not hold the tractor , the brake 19.9 . Insert a . 013 â€� feeler gauge between the brake needs to be adjusted or repaired . rotor and the outer brake pad . There should be slight drag on the feeler gauge . 19.4 . To check that the brakes do not drag : 19.10 . If the feeler gauge is too loose , or will not go in , â€¢ Place the gear selector in Neutral . brake caliper adjustment is necessary . â€¢ Release the parking brake . 19.11 . A 1 / 2 â€� wrench will turn the adjustment nut . â€¢ Attempt to push the tractor - it should move with See Figure 19.11 . less than 20 lbs . of force . More force indicates drag . â€¢ If the brakes drag , they need to be adjusted or repaired . 19.5 . There is no linkage adjustment . All adjustment is done at the brake caliper . 19.6 . To reach the brake caliper , lift and safely support the right rear corner of the tractor . 19.7 . Remove the right rear wheel of the tractor using a 3 / 4 â€� socket . Figure 19.11 19.12 . Tighten the nut to reduce the clearance . Loosen the nut to increase the clearance . 30
Series 1000 and 1500 19.13 . Check the movement of the brake arm : 19.17 . Remove the caliper from the transaxle . The brake actuator arm can now be unhooked from â€¢ The brake arm should move forward as the the spring that connects it to the linkage . See brake is applied . Figure 19.17 . â€¢ The return spring should draw the brake arm back against the spacer when the brakes are released . 19.14 . Visually check the thickness of the brake pads : they are visible within the caliper . 19.15 . Check the brake rotor : Caliper â€¢ Confirm that the brake rotor floats on the splined shaft by sliding it in and out with light finger pres - sure . â€¢ If it binds on the shaft it may cause brake drag and reduced holding performance . â€¢ A rotor that has been dragging will frequently be discolored by the heat ( blue ) . 19.16 . If the brakes are dragging or worn , or if the rotor Figure 19.17 needs to be removed from the shaft , remove the two bolts that hold the caliper to the transaxle 19.18 . The rotor should slip - off of the splined shaft , pro - using a 3 / 8 â€� wrench . See Figure 19.16 . viding access to the fixed brake pad . See Figure 19.18 . 2 Bolts Fixed brake pad Figure 19.16 Figure 19.18 31
Series 1000 and 1500 19.19 . A crease in the brake arm acts as a cam . At rest , 20 . SERVICING THE BRAKE PEDAL SHAFT BUSH - the ends of the two pins ride in the peak of the INGS : crease : See Figure 19.19 . â€¢ If there is insufficient travel in the linkage to fully apply the brakes , a simple visual inspection should identify the cause . 20.1 . Confirm that the brake pedal is firmly attached to the pedal shaft . See Figure 20.1 . Brake Pedal Figure 19.19 â€¢ The brake arm pivots on a square - headed stud . â€¢ The two pins are forced against the backing plate when force is applied to the arm . Figure 20.1 â€¢ The backing plate rides between the pins and the pad , to prevent the pins from damaging the 20.2 . Remove the cutting deck to reach the brake brake pad . pedal shaft , bushings , and bracket . 19.20 . Replace the pads if they are worn . They fre - 20.3 . Check for excessive play in the bushings . Replace them if they are worn . quently last many years unless the brakes have been dragging . NOTE : It is suggested that if any of these bush - 19.21 . Be sure the pin bores are clear of dirt and corro - ings need to be replaced , replace all of the pedal shaft bushings at this time . The speed control sion : either may cause the pins to bind and the pedal shaft bushings are replaced in a similar brakes to drag . manner . 19.22 . On assembly , apply a small amount of dry graphite lubricant to the pins and the spots on the brake arm that they contact . Do not allow any lubricant to get on the brake pad . 19.23 . Install the brake caliper , tightening the two nuts to 7 to 10 ft . - lbs . , then check and adjust the pad - to - rotor clearance . 19.24 . Install the rear wheel , tightening the lug nuts to a torque of 350 to 500 In . - lbs . Lower the tractor to the ground . 19.25 . After any brake service is performed , test the brakes as described in steps 24.2 through 24.4 , then test - drive the tractor in a safe area that is free of hazards , obstacles , and by - standers before returning the tractor to service . 32