KIT-GASKET 2895160 - Caterpillar

Replacement of the Bearing for the Flywheel
The bearings for the flywheel on the UPS must be changed due to wear and vibration. Consult the Operation and Maintenance Manual for the appropriate maintenance interval for replacing the bearings on your product.There are several indications of bearing wear. Replace any bearing with indications of wear.
Vibration
Temperature
Increase in operational noise levelNote: Bearings are always changed as a top and a bottom set. The bottom bearing is changed first. The top bearing is changed second.Prior to Beginning
The flywheel cabinet must be at the following specifications:
Off-line
De-energized
Flywheel at zero RPMYou will need to have the appropriate replacement parts and tools in order to change the bearing.Required Tools
Table 1
Tool     Size     Quantity    
Work light     N/A     1    
Mirror for inspecting     N/A     1    
Allen wrench     5/16 in.     1    
Allen wrench     1/4 in.     1    
Allen wrench     7/64 in.     1    
Socket wrench     N/A     1    
Socket     9/16 in.     1    
Socket     1 in.     1    
Socket     1 1/8 in.     1    
Socket     1/2 in.     1    
Open-end wrench     11/16 in.     1    
Open-end wrench     1 1/2 in.     1    
Open end     9/16 in.     1    
Open end     1 1/16 in.     1    
End     1 1/8 in.     1    
Torque wrench     N/A     1    
Feeler gauges     N/A     4    
Bearing puller     N/A     1    
Guide pins     N/A     1    
Installation tool     N/A     1    
Vernier caliper     N/A     1    
Thread compound     N/A     1    
Electrostatic discharge wrist strap     N/A     1    
Cross tip screwdriver     small     1    
High vacuum grease     N/A     1    
Illustration 1 g01280654
(1) Comm/Accel assembly screw (2) Comm/Accel PWA (3) Comm/Accel O-Ring (4) Rotor retaining bolt (5) Bearing bolt (6) Toothed rotor wheel (7) SAE hex plug (8) Upper bearing cartridge (9) Shim pack (10) Black O-Ring (11) SAE hex plug (12) Flywheel housing (13) SAE hex plug (14) Black O-Ring (15) Shim pack (16) Lower bearing cartridge (17) Rotor retainer (18) Polished rotor retaining bolt (19) Load cell (20) Load cell boltBearing service is always performed on both the upper and lower bearings.Note: Change the lower bearings first.
When servicing or repairing electric power generation equipment:
Make sure the unit is either locked out or tagged DO NOT OPERATE.
Remove all fuses.
Make sure the generator engine is stopped.
Make sure all batteries are disconnected.
Make sure all capacitors are discharged.
Make sure residual voltage in the rotor, stator and the generator is discharged.Failure to do so could result in personal injury or death.
The following steps must be done before performing maintenance on internal components.Shut down all inputs to