VALVE GP-MOTOR CONTROL 3738447 - Caterpillar

Assembly Procedure
Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause problems in the future. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.
Table 1
Required Tools    
Part Number     Part Description     Qty    
1P-0510     Driver Gp     1    
Illustration 1 g00706948
Install bearing (28) into the rear frame. Use 1P-0510 Driver Gp .
Illustration 2 g00706939
Install rectifier (24) and install screw (23). Install capacitor (27). Install screw (25) and install insulated screw (26) .
Illustration 3 g00706922
Install regulator (20) and install screw (21). Install brush holder (18). Install screw (22) and install insulated screw (19) .
Illustration 4 g00706931
Install B+ terminal (11) and install connector strap (15). Install nut (16). Install R terminal (12) and install connector strap (13). Install diode assembly (14) and install insulated screw (17) .
Illustration 5 g00706884
Install stator (10) into rear frame (4). Install three nuts (9) .
Illustration 6 g00707145
The brushes (29) must be held in the depressed position in order to install the rotor in the rear frame. Depress brushes (29). Insert a piece of wire (30) through brush holder (18). Wire must extend through the back of the rear frame (4) for removal in step 9.
Illustration 7 g00706882
Install rotor (8) into rear frame (4) .
Illustration 8 g00706873
Note: Do not apply force to the inner race of bearing (7). To install the bearing, apply force to the outer race.
Install bearing (7) into the drive frame. It may be necessary to use a hydraulic press to install the bearing. Install retainer (6) and install three bolts (5) .
Illustration 9 g00706866
Position drive frame (3) over the rotor shaft. Carefully push the drive frame (3) to the rear frame (4). Align the marks on the frames that were made during disassembly. Install four bolts (2). To tighten bolts (2), refer to Specification, "Alternator" for the proper torque.
Illustration 10 g00706834
Note: Do not install the pulley while the rotor shaft is vertical. This may cause internal damage to the alternator. Install the pulley while the rotor shaft is horizontal.
Install fan (1) onto the rotor shaft. Install the pulley. Install the washer and install the nut. To tighten the nut, refer to Specification, "Alternator" for the proper torque.End By: Install the alternator on the machine. Refer to Disassembly and Assembly, "Alternator - Install" for the machine that is being serviced.