Lower Roller Removal; Lower Roller Disassembly - Doosan DX140R Shop Manual

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 27) from the collar and drain oil.
2. Pull the pin (5, Figure 27) from the collar.
3. Separate the collar (2, Figure 28) from the axle, using
press.
Track Assembly
Page 22
Figure 26
Figure 27
Figure 28
FG000345
5
8
FG001489
2
FG001490
SP001941