CONTROL AR-QUICK COUPLER 1855785 - Caterpillar

Removal Procedure
Accidental engine starting can cause injury or death to personnel working on the equipment.To avoid accidental engine starting, disconnect the battery cable from the negative (−) battery terminal. Completely tape all metal surfaces of the disconnected battery cable end in order to prevent contact with other metal surfaces which could activate the engine electrical system.Place a Do Not Operate tag at the Start/Stop switch location to inform personnel that the equipment is being worked on.
Disconnect the batteries.
Place identification marks on all of the harness assemblies that are connected to the electric starting motor and the solenoid.
Illustration 1 g01135491
Disconnect the harness assemblies from solenoid (1).
Fasten a suitable lifting device to electric starting motor (2). The weight of electric starting motor (2) is approximately 26 kg (57 lb).
Remove bolts (3). Remove electric starting motor (2) and gasket (4). Installation Procedure
Illustration 2 g01135491
Illustration 3 g01135493
Fasten a suitable lifting device to electric starting motor (2). The weight of electric starting motor (2) is approximately 26 kg (57 lb).
Position gasket (4) and electric starting motor (2) on the flywheel housing. Install bolts (3).
Position the harness assembly on solenoid (1) and install nut (5). Tighten the nut to a torque of 31 4 N m (23 3 lb ft).
Position the harness assembly on solenoid (1) and install nut (7). Tighten the nut to a torque of 2.25 0.25 N m (20 2 lb in).
Position the harness assembly on solenoid (1) and install nut (6). Tighten the nut to a torque of 2.25 0.25 N m (20 2 lb in).
If necessary, install the connector and install nut (9) and bolt (8). Tighten the nut to a torque of 31 4 N m (23 3 lb ft). Tighten the bolt to a torque of 8 3 N m (71 27 lb in).
Connect the batteries.