Maintenance
Safety, Operation and Maintenance Manual - Aug 2012
5-74
SY115C9/135C/155H Crawler Hydraulic Excavator
5.8.6 Every 500 service hours
Also perform maintenance for every 100 and
250 service hours is in the meantime.
5.8.6.1 Swing bearing - lubricate
1. Lower work equipment to ground, stop
the engine and engage hydraulic lockout
control.
2. Add grease through two grease fittings
while the upper structure is kept static.
3. Start the engine, disengage hydraulic
lockout control and raise the bucket 20-30
mm off ground. Swing upper structure by
45 degrees and add grease through steps
1 and 2.
4. Repeat step 3 twice to accomplish greas-
ing.
Note:
●
The grease is used to prevent distortion
and noise of joints.
●
It is necessary to add grease to any com-
ponent that appears in
fl
exible or noisy after
operation for a long period.
●
Wipe off the used grease that has been
squeezed out when greasing.
●
Make sure to wipe off all used grease in
different locations. Using a grease that has
been contaminated by sand or debris can
lead to wear of rotating components.
Fig. 5-75
CZ135B-1104021