HOUSING A 4N0128 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     8T-5255     Hydraulic Jack     1    
Start the engine. Park the machine on a hard, level surface. Shut off the engine.
Personal injury or death can result from grease and oil coming out of the relief valve.Grease and oil are under high pressure coming out of the relief valve and can penetrate the body.Do not watch the relief valve to see if grease is escaping. Watch the track or track adjustment cylinder to see if the track is being loosened. Make sure the vent holes are clean before the tension is released on the track.
Illustration 1 g00489342
Release the tension on the track. Loosen relief valve (1) by one turn only. If the track does not loosen after opening the relief valve, move the machine forward and backward until the tension is released.
Illustration 2 g00555721
Loosen bolt (2) that holds track carrier roller (3) to the mounting bracket on the undercarriage.
Illustration 3 g00489356
Position suitable blocks and Tooling (A) under the track assembly, as shown.
Use Tooling (A) in order to lift the track assembly off track carrier roller (3) .
Use two people in order to remove track carrier roller (3). The weight of track carrier roller (3) is approximately 27 kg (60 lb).