Maintenance
Safety, Operation and Maintenance Manual - Aug 20125-96
SY115C9/135C/155H Crawler Hydraulic Excavator
5.8.9.3 Accumulator (control oil circuit) - replace
If your machine is kept operating when the
performance of accumulator decreases, the
pressure in the hydraulic system will not be re-
leased. Consult Sany distributor to replace the
accumulator.
The accumulator's installation location is
shown in the right illustration.
The accumulator contains pressurized
nitrogen, which may explode due to im-
proper operation, thus resulting in machine
damage and personal injury. The following
items must be observed when handling the
accumulator:
●
Some pressure remains in the hydrau-
lic circuit. Never face the opening from
which oil may squirt when disassem-
bling a hydraulic device. In addition,
loosen the bolts slowly.
●
Never dismantle the accumulator.
●
Be away from fi re sources.
●
Never punch or weld the accumulator.
●
Never bump or roll the accumulator.
Keep it free from any impacts.
●
Vent the air completely when handling
the accumulator. Consult your Sany dis-
tributor to do this job.
WARNING
Fig. 5-112
CZ135B-1104029
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