Doosan DX480LC - Lower Roller Disassembly; Lower Roller Removal

SP001741
Page 23
Track Assembly
Lower Roller Removal
1. Relieve track tension. Refer to "Track Tension" in this
section for procedure.
2. Swing upper structure at 90° to frame.
3. Using bucket raise track off ground and place blocking
under frame.
4. Remove four bolts and lower roller assembly from track
frame. There is an alignment pin on each end of lower
roller assembly.
NOTE: To gain access to some rollers the link guard
may have to be removed. Remove four spring
washers and bolts to remove guard.
NOTE: If additional track clearance is required, remove
upper rollers before raising track.
Lower Roller Disassembly
1. Remove plug (8, Figure 26) from the collar and drain oil.
2. Pull the pin (5, Figure 26) from the collar.
Reference
Number
Description
1Roller
2Collar
3 Shaft
4 Bushing
5Pin
6 Floating Seal
7 O-ring
8Plug
Reference
Number
Description
FG000345
9
0
~
1
1
0
Figure 25
FG001489
5
8
Figure 26