PIPE AS 4279731 - Caterpillar

Illustration 2 g00854020
(2) Bolts (3) Retaining Bars
If the generator end housing is equipped with retaining bars (3), remove the four bolts (2) that fasten the retaining bars to the generator end housing. Remove the retaining bars.
Illustration 3 g00854023
(4) Bearing Cap
If the generator end housing is equipped with bearing cap (4), remove the necessary bolts which fasten the bearing cap to the generator end housing. Pry the bearing cap out of the generator end housing. The bearing cap remains with the rotor shaft. If a bearing lube line is attached to the bearing cap, remove the lube line.
Illustration 4 g00854025
(5) End Housing (6) BoltsNote: The weight of end housing (5) varies with the size of the generator. Larger end housings require the use of a hoist.
Attach a hoist to end housing (5). Remove bolts (6) that fasten end housing (5) to the generator. Use a pry bar to separate the end housing from the generator. Some end housings have provisions which allow the use of forcing screws. Lift the end housing from the generator and remove the end housing from the generator.
Illustration 5 g00854021
(7) Tooling
Attach tooling (7). Remove the bearing. Two-Bearing Generator
Table 2
TOOLS NEEDED    
Part Number     Tool     Quantity    
1U-6415     Puller Group (40 ton)     1    Note: On two-bearing generators, there is a bearing on each end of the generator. To remove the bearing that is located at the drive end of the generator, use the following procedure.For removal of the bearing at the drive end of the generator, begin by removing the drive coupling. Refer to Disassembly and Assembly, "Coupling - Remove".
Illustration 6 g00615814
(1) Bolts
The generator bearing is retained in the generator end housing. On the inside of the generator end housing, a bearing cap retains the bearing. Remove bolts (1) which fasten the bearing cap to the generator end housing. Pry the bearing cap out of the generator end housing. The bearing cap remains with the rotor shaft. If a bearing lube line is attached to the bearing cap, remove the lube line.
Put a mark on the drive end housing and the generator housing. This will ensure proper alignment during installation.
Illustration 7 g00615816
(2) End Housing (3) Bolts
Attach a hoist to end housing (2). Remove bolts (3) which fasten end housing (2) to the generator. Use a pry bar to separate the end housing from the generator. Some end housings have provisions which allow the use of forcing screws. Lift the end housing from the generator and remove the end housing from the generator.
Illustration 8 g00615820
(4) Removal Tool 1U-6415
Attach tooling (4). Remove the bearing.
Illustration 9 g00615824
Replaceable bearing wear sleeve (inside view of end housing) (5) Bearing wear sleeveSome end housings have a bearing wear sleeve (4) which is replaceable. Installation Procedure
To install the bearing that is located at the exciter end of the generator, use the following procedure.
Use a bearing induction heater in order to heat the bearing to 149 °C (300.2 °F).
While the bearing is 149 °C (300.2 °F), place the bearing on the shaft.
Install the generator end