PLATE-THRUST 7E9262 - Caterpillar

Electric Power Generation:
SR4 (S/N: 9FG963-1755)
:
3412 (S/N: 81Z2-UP)
Engine:
3412C (S/N: 9BR1-UP)
A new balance disc is now available. The part number for the new balance disc is 7c-7527 .The 7C-7527 Disc replaces the former 4P-1773 Disc. The 7C-7527 Disc improves the reliability of the 593 frame generators.The following procedure is adaptable to the serial number that are listed in Table 3, Table 4, and Table 5.Balance Disc Field Replacement Procedure
Table 1
Required Parts    
Quantity     Part Number     Description    
4     OS-1618     5/16-18 x 1.00 in G8    
12     9M-1974     Hardened Washer    
1     9S-3263 (North America)
185-3996 (EAME)     Thread Lock
Compound    
Table 2
Required Tools    
Torque Wrench     Tap and tap handle    
Remove exciter end disc.
Use a hand tap in order to chase the threaded hole that is in each bar. Use a hand tap in order to remove any hardened thread lock compound. Use the hand tap in order to ensure proper thread depth. Thread depth should be 12.7 mm (0.5 inch) (minimum) .
Apply thread lock compound to the four (4) 0S-1618 Bolts .
Illustration 1 g01265916
(1) Threaded Bar (2) Washer Between Threaded Bar and Disc (3) Disc (4) Two Washers Between Disc and Mounting Bolt (5) Mounting Bolt
Replace the disc assembly. Use three (3) 9M-1974 Washers per bolt. Use one washer between the disc and the threaded bar and use two washers between the disc and the 0S-1618 Bolts. Refer to Illustration 1.
Torque the 0S-1618 Bolts as per Caterpillar 1E0279 specifications.
Balance the rotor.
Table 3
Adaptable to 81Z Package Serial Numbers    
20330     20334     20375     20381     20397     20417     20427     20429     20443     20444    
20447     20450     20451     20466     20476     20495     20505     20512     20530     20560    
20562    
20586    
20604    
20606    
20608    
20610    
20613    
20635    
20640    
20652    
20654    
20670    
20674    
20675    
20687    
20694    
20699    
20700    
20705    
20710    
20714    
20720    
20738    
20739    
20750    
20760    
20820    
20826    
20881    
20885    
20886    
20887    
20889    
20893    
20895    
20909    
20918    
20924    
20930    
20935    
20938    
20964    
20994    
21017    
21018    
21030    
21109    
21163    
21204    
21214    
21308    
21310    
21340    
21343    
21374    
21413    
21436    
21441    
21446    
21449    
21454    
21457    
21468    
21470    
21477    
21505    
21514    
21530    
21531    
21562    
21565    
21584    
21588    
21616    
21659    
21660    
21679    
21737    
21745    
21746    
21758    
21760    
21764    
21766    
21780    
21783    
21784    
21788    
21793    
21794    
21800    
21801    
21805    
21809    
21816    
21817    
21818    
21823    
21824    
21826    
21834