General • Inspections

Caterpillar SR4B: Maintenance Interval Schedule (Standard) (Every 1000 Service Hours)

This procedure that is done every 1000 Service Hours focuses on lubricatin the bearing (Spherical Roller). It also gives you the complete lubricating process which you can follow to ensure that your equipment maintains its superior efficiency.

MaintainX

08/10/2022

Caterpillar SR4B: Maintenance Interval Schedule (Standard) (Every 1000 Service Hours)

Bearing (Spherical Roller) - Lubricate

Spherical roller bearings must be lubricated. For spherical roller bearings, use a Caterpillar 108-8611 Grease Cartridge. This grease is an NLGI No. 1.5 Grade. There is no molybdenum disulfide in this grease. There is Clay (a thickener) in this grease. At 40c (104.0 F), the viscosity of the grease in a Caterpillar 108-8611 Grease Cartridge is 32 cSt. At 100 C (212.0 F), the viscosity is 5 cST.

Lubricating Process:

Remove either the louver assembly or the rear plate from the rear of the generator housing.
Remove the top grease pipe plug and remove the lower grease pipe plug.
Grease spherical roller bearings with a 108-8611 Grease Cartridge (29.6 ml (1 ounce). Spherical roller bearings should be lubricated at 1000 hour intervals. Do not mix greases.
Wipe off the excess grease. Remove the top grease fitting. Install the plug.
Operate the generator for one hour. This will allow the grease to expand. The expanding grease will force the excess grease from the cavity. When the excess grease is forced from the cavity, the internal pressure will be reduced. The generator should continue to operate until the grease stops purging.
Stop the engine. Install the plug in the bottom of the grease pipe. Wipe off the excess grease.
Install the louver assembly or install the rear plate.

Source: MaintainX (Community Member)

Bearing (Spherical Roller) - Lubricate

Lubricating Process:

Remove either the louver assembly or the rear plate from the rear of the generator housing.

Remove the top grease pipe plug and remove the lower grease pipe plug.

Grease spherical roller bearings with a 108-8611 Grease Cartridge (29.6 ml (1 ounce). Spherical roller bearings should be lubricated at 1000 hour intervals. Do not mix greases.

Wipe off the excess grease. Remove the top grease fitting. Install the plug.

Stop the engine. Install the plug in the bottom of the grease pipe. Wipe off the excess grease.

Install the louver assembly or install the rear plate.