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Maintenance
Safety, Operation and Maintenance Manual - Aug 2012
5-90
SY115C9/135C/155H Crawler Hydraulic Excavator
A
B
C
CZ335-1104096
3. Keep the work equipment at its maximum
operating radius, turn the start switch to
OFF position (A) and stop the engine.
Checking the functions of accumulator
During inspection, make sure the sur-
rounding area is clear without personnel
or any barriers.
Check the nitrogen pressure through the fol-
lowing steps:
1. Park your machine on a hard, level ground.
2. Keep the work equipment 1.5m (4ft 11in)
above the ground at maximum reach (with
the arm fully extended and the bucket fully
turned outward.
The step 3 through step 5 shall be conducted
within 15 seconds.
The accumulator's pressure drops gradu-
ally since stoppage of the engine. Therefore,
check the accumulator immediately after the
engine is shut down.
1.5m
CZ335-1104095
Fig. 5-101
Fig. 5-102
NOTICE