SEAL 1990596 - Caterpillar

Separation Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     5P-6214     Block Assembly     1    
B     1U-7630     Impact Socket     1    
C (1)     3S-6224     Electric Hydraulic Pump (115 Volt) (2)     1    
8T-0820 Hydraulic Pressure Gauge     1    
3B-7722 Pipe Bushing     2    
1P-2376 Quick Connect Coupler     2    
1P-2377 Dust Plug     2    
6D-7726 Hose Assembly     2    
5P-2379 Press Frame and Tooling Group     1    
8S-7172 Double Acting Cylinder     1    
8S-9903 Rollover Group     1    
( 1 ) Use Tooling (C) if the master pin can not be removed.
( 2 ) 8S-8033 Electric Hydraulic Pump (230 Volt) is available.
Start the engine. Park the machine on a hard, level surface. Stop the engine.
Grease is under high pressure.Grease coming out of the relief valve under pressure can penetrate the body causing injury or death.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.Loosen the relief valve only one turn.
Release the tension on the track assembly. Refer to Operation and Maintenance Manual, "Track Adjustment - Adjust" for more information.
Illustration 1 g00490310
Illustration 2 g00490311
Note: To provide additional clearance for removal of the master pin, the track shoe on each side of the master pin may be removed. Use Tooling (B) in order to remove the track shoe mounting bolts.
Move the track assembly until master pin (2) is in the position that is shown. Put Tooling (A) under the track grouser, as shown. Move the track assembly onto Tooling (A) .
Illustration 3 g00779243
Personal injury can result from the track coming off of the roller frame.The track can move off the track roller frame very quickly when a separation of the track is made.Keep away from the front of the machine when the track is removed from the track roller frame.
Note: The spacer for the track will fall out of the track links when the track assembly is separated.
Remove cotter pin (3) from the master pin.
Illustration 4 g00779249
Use a hammer and a punch to remove master pin (2) from the track links. Separate the track links, and locate the two spacers for the track. Slowly move the machine forward until the track assembly is off the sprocket, the track carrier rollers and the front idler.Note: If the track does not separate use Tooling (C) in order to remove the master pin. Move the track assembly until the master pin is in a position between the center track carrier roller and the rear track carrier roller. Remove the master pin. For further information, refer to Special Instruction, SMHS6954, "Track Disassembly".
Fasten a suitable lifting device to the rear of the track assembly.
Raise the track assembly off Tooling (A) .
Remove Tooling (A). Lower the rear of the track assembly to the floor.