SUPPORT AS 1660940 - Caterpillar

Typical Example(1) Torque for nut ... 14 4 N m (124 35 lb in)(2) Hand tighten nut against weld nut, then back nut off 1/4turn.(3) Tighten nut until a force of 20 2 N (177 18 lb in) is required to move lever (5).(4) Torque for jam nuts ... 5.0 0.5 N m (44 4 lb in) For Hitch Control Lever Linkage Adjustment refer to Systems Operation, Testing & Adjusting for Challenger 65D, 75C, and 85C Agricultural Tractors Hydraulic System, SENR8475.Hitch Control Lever Linkage (Later Model)
Torque for screws (1) ... 2.25 .25 N m (20 2 lb in)Adjust nut (2) so that a force of 20 2 N (4.5 .5 lb), applied at the center of the control knob is required to move the input lever to the side.Adjust nut (3) so that a force of 25 2 N (5.5 .5 lb), applied at the center of the control knob, is required to rotate the input lever.Hitch Position Linkage Adjustment
For Hitch Position Linkage Adjustment refer to Systems Operation, Testing & Adjusting for Challenger 65D, 75C, and 85C Agricultural Tractors Hydraulic System, SENR8475.Draft Control Throttle Switch Adjustment
1. Put governor control lever (1) in the full rearward (LOW IDLE) position.2. Loosen nuts (4) and adjust bolt (3) to dimension (C) of ... 34.5 1.5 mm (1.36 .06 in).3. Move governor control lever (1) forward until it is within ... 10 4 mm (.39 .16 in) from end of slot.4. Loosen bolts (5) so bracket (6) can be moved up or down.5. Slide bracket (6) up until bolt (3) just contacts positioner plate (2), as shown.6. Tighten bolts (5) to a torque of ... 45 7 N m (33 5 lb ft).(A) LOW IDLE(B) HIGH IDLE At full throttle, with throttle switch depressed, resistance measured between throttle switch terminals should be less than ten ohms.Engine Speed Sensor Adjustment
Engine speed sensor (installed in top of flywheel housing).1. Remove the speed sensor. Align a gear tooth directly in the center of the threaded sensor opening.2. By hand, screw the sensor into the hole until the end of the sensor just makes contact with the gear tooth.3. Turn the sensor back out 3/4 turn (270° in the counterclockwise direction), to assure a space (1) between the speed sensor and the gear teeth.4. Tighten locknut (2) to a torque of ... 25 5 N m (18 4 lb ft). Do not allow the sensor to turn as the locknut (2) is tightened.