HOUSING 4N0147 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     8S-7611     Tube     2    
8S-7615 Pin     2    
8S-7640 Stand     2    
B     183-4797     Track Roller Lifting Fork     1    Note: There is a track guide on each side of the machine. The procedure that follows is for the removal of the track roller with the track guide.
Start the engine. Park the machine on a hard, level surface. Stop 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 g00489826
Note: Adjust the height of Tooling (A) in order to have sufficient clearance for the removal of the track rollers when Tooling (A) is installed under the undercarriage of the machine.
Lift the side of the machine. Install Tooling (A) under the undercarriage, as shown.
Illustration 3 g00664654
Loosen the bolts that hold track guide (2) to the undercarriage.Note: Do not remove the bolts at this time.
Illustration 4 g00664663
Position Tooling (B) and a suitable lifting device under track guide (2), as shown. Remove the bolts that secure the track guide. Remove track guide (2) .
Illustration 5 g00664665
(X) Rock guard
Remove the rock guards from the undercarriage, if equipped.
Illustration 6 g00664675
Loosen the bolts that secure track roller (3) to the undercarriage.Note: Do not remove the bolts at this time.
Position Tooling (B) and a suitable lifting device under track roller (3), as shown.
Remove the bolts that secure track roller (3). Remove track roller (3). The weight of track roller (3) is approximately 40 kg (88 lb).Reference: Refer to Undercarriage Reconditioning Bulletin, SEBF8568, "Hydraulic Excavator Roller Disassemble and Assembly Procedures" for the disassembly and assembly procedures of the track roller.