PLATE ASSEM. 7S7934 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     QTY    
A     386-6031     Lever Puller Hoist Gp     1    
B     140-7742     Sleeves     2    
C     420-5317     Cribbing     2    
D     422-5474     Lifting Eye Assembly     2    
E
    417-1324     Support Stand     1    
420-5317 Cribbing     1    
F     -     Guide Studs
M8 - 1.25 by 150 mm     2    Start By:
Remove the terminal box.
Remove the generator.
Remove optional permanent magnet Pilot exciter (PMG) attachment if equipped.
Illustration 1 g03342079
Remove air exit screen (1) .
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Remove outer bearing cover (2) .Note: Failure to perform next step will result in damage to internal components of the generator.
Remove bolts (3) from the bearing cap.
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Typical exampleNote: Mark orientation of cable assemblies (4) prior to disconnecting.
Disconnect cable assemblies (4). Remove terminals (5) from the terminal assembly.
Illustration 4 g03341976
Install Tooling (A), a suitable lifting device, and Tooling (B) to generator (6). Refer to Table 2 for the approximate weight of generator (6).
Table 2
Approximate Weight of Generator (6)    
Model     Approximate Weight    
LC 5    
895 kg (1973 lb)    
LC 6    
1293 kg (2851 lb)    
LC 7    
1865 kg (4112 lb)    
Illustration 5 g03342084
Illustration 6 g03342209
Use Tooling (A) and a suitable lifting device to position generator (6) on Tooling (C) .
Remove Tooling (A), the suitable lifting device, and Tooling (B) from generator (6) .
Illustration 7 g03334652
Remove brace (7). Remove plate set (8) and the shims.
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Install Tooling (B) and a suitable lifting device on flange (9). Refer to Table 3 for the approximate weight of flange (9).
Table 3
Approximate Weight of Flange (9)    
Model     Approximate Weight    
LC 5    
41 kg (90 lb)    
LC 6    
50 kg (110 lb)    
LC 7    
58 kg (128 lb)    
Remove bolts (10) from flange (9). Remove flange (9) .
Remove Tooling (B) and the suitable lifting device from flange (9).
Illustration 9 g03334672
Install Tooling (D) and a suitable lifting device to rotor (11). Refer to Table 4 for the approximate weight of rotor (11).
Table 4
Approximate Weight of Rotor (11)    
Model     Approximate Weight    
LC 5    
357 kg (787 lb)    
LC 6    
508 kg (1120 lb)    
LC 7    
703 kg (1550 lb)    
Illustration 10 g03341790
Remove rotor (11) from generator (6) .
Illustration 11 g03341798
Illustration 12 g03334676
Attach Tooling (A) and a suitable lifting device to position rotor (11) on Tooling (E) .Installation Procedure
Illustration 13 g03334799
Illustration 14 g03334783
Install Tooling (F) in bearing cap (12). Install Tooling (D) and a suitable lifting device to rotor (11). Install Tooling (A) and a suitable lifting device to rotor (11). Refer to Table 5 for the approximate weight of rotor (11).
Table 5
Approximate Weight of Rotor (11)    
Model     Approximate Weight    
LC 5    
357 kg (787 lb)    
LC 6    
508 kg (1120 lb)    
LC 7    
703 kg (1550 lb)