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Maintenance
Safety, Operation and Maintenance Manual - Aug 2012
5-77
SY115C9/135C/155H Crawler Hydraulic Excavator
and air conditioner condenser) with power-
ful steam (from high-pressure
fl
ushing ma-
chine). With steam cleaning (high-pressure
machine flushing) at a near distance, the
heat exchanger could deform and early
plugging and cracking could be resulted.
5. Inspect rubber hoses. Replace the hoses
in case of cracking or aging. Check hose
clamps for looseness.
6. Remove bottom cover (10). Remove dirt,
debris and tree leaves that have been
swept to the outside.
7. Reinstall cleaned screens (2) and (9) and
tighten them with screws (3) and (8).
Fig. 5-82
10
CZ135B-1104026
5.8.6.4 Air conditioner
fi
lters - clean
Note:
The filter shall be cleaned every 500 hours,
but operating your machine in a dusty place
requires cleaning the
fi
lter more frequently.
Remark:
An air filter plugged with dust will reduce air
fl
ow and cause the air-conditioning unit to pro-
duce noise.
Always prepare your machine as required
and lock/tag it out before proceeding.
See
“Preparing the machine” on page 2-58 and
“Lock-out and tag-out” on page 2-60.
The dust blown by compressed air could
cause personal injury. Make sure you are
protected by goggles, dust-proof mask
and other protective gear.
WARNING