FAN GP-BLOWER 1856143 - Caterpillar

Illustration 1 g01097807
Connection For Checking Pinion Clearance (1) Connector (2) SW terminal (3) Ground terminal
Install the solenoid without connector (1) from the MOTOR connections (terminal) on the solenoid to the motor.
Connect a battery that has the same voltage as the solenoid to the "SW" terminal (2) .
Connect the other side of the battery to connector (3) .
For a moment, connect a wire from the solenoid connection (terminal), which is marked "MOTOR", to the ground connection (terminal). The pinion will shift to the crank position and the pinion will stay there until the battery is disconnected.
Illustration 2 g01097827
Pinion Clearance Adjustment (4) Shaft nut (5) Pinion (6) Pinion clearance
Push the pinion toward the end with the commutator in order to remove free movement.
Pinion clearance (6) must be 8.3 to 9.9 mm (.33 to .39 inch).
In order to adjust the pinion clearance, remove the plug and turn the shaft nut (4) .
After the adjustment is completed, install the plug over nut (4). Install connector (1) between the MOTOR terminal on the solenoid and the starter motor.