PIN 3U1985 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     8S-9906     Ratchet Puller     1    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g00791279
Remove cover (1) and covers (2.) .
Illustration 2 g00791292
Remove louver (3) and cover (4) .
Illustration 3 g00791299
Illustration 4 g00791308
Put a piece of cardboard (5) between stator (6) and rotor assembly (7). This step is necessary in order to prevent damage to the rotor assembly and the stator when the generator fan is disconnected from the flywheel housing.
Illustration 5 g00791317
Loosen three bolts and nuts (8) on the front engine support.
Illustration 6 g00791340
Remove the bolts that hold the generator in place on the base.Note: G3412 Engines do not have mounts, sleeves, or collars. G3412 Engines have four bolts that hold the generator set to the base.
Fasten a strap (9) and Tool (A) to the generator. Fasten a chain to the lifting bracket on the front of the generator.
Lift the generator and the rear of the engine enough to install wood blocks (10) under the flywheel housing. Lower the generator and the engine until the weight of the engine is on wood blocks (10) .
Illustration 7 g00791343
Remove bolts (12) that hold fan (13 ) against the flywheel housing. Remove bolts (11) that hold the generator housing against the flywheel housing.
Remove the generator from the engine. The weight of the generator is approximately 1134 kg (2500 lb).
Illustration 8 g00791373
Remove bolts (14) and plates (15.) .
Illustration 9 g00791375
Remove fan (16) and shims (17) .