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MAINTENANCE
OUTLINE OF SERVICE
PW160-7H VEAM390100
229
●
Services relating to the electric system are (1) check of fan
belt tension, (2) check of damage or wear in the fan belt and
(3) check of battery fluid level.
●
Never remove or disassemble any electric components
installed in the machine.
●
Never install any electric components other than these speci-
fied by Komatsu.
●
Be careful to keep the electric system free of water when
washing the machine or when it rains.
●
Since the controller for the control system may cause mal-
function due to external wave interference, before installing a
radio receiver and a walkie-talkie or citizen band, consult your
Komatsu distributor.
●
When working on the seashore, carefully clean the electric
system to prevent corrosion.
●
When installing a car cooler or an other electrical equipment,
connect it to an independent power source connector. The
optional power source must never be connected to the fuse,
starting switch, or battery relay.
OUTLINE OF HYDRAULIC SYSTEM
●
During operation and immediately after operation is ended,
the temperature of the hydraulic system still remains high.
In addition, high hydraulic pressure is applied to the system.
Take care when inspecting and maintaining the hydraulic sys-
tem.
❍
Stop the machine on level ground, lower the bucket to the
ground, then set so that there is no pressure applied to
the cylinder circuit.
❍
Always stop the engine.
❍
Immediately after operations, the hydraulic oil and lubri-
cating oil are at high temperature and high pressure, so
wait for the oil temperature to go down before starting
maintenance. Even when the temperature goes down,
the circuit may still be under internal pressure, so when
loosening the plug or screw, or the hose joint, do not
stand in front of the part. Loosen it slowly to release the
internal pressure before removing it.
❍
When carrying out inspection or maintenance of the
hydraulic circuit, always bleed the air from the hydraulic
tank to remove the internal pressure.
●
Periodic maintenance includes the inspection of the hydraulic
oil level, replacement of the filter and refilling of hydraulic oil.
●
When a high pressure hose, etc. is removed, check the O-
ring for damage. If necessary, replace it.
●
After the hydraulic filter element and strainer are cleaned or
replaced, or after the hydraulic system is repaired or replaced
or the hydraulic piping is removed, bleed air from the hydrau-
lic circuit.
Summary of Contents for PW160-7H
Page 2: ......
Page 3: ...PW160 7H VEAM390100 3 FOREWORD ...
Page 12: ...LOCATIONS OF PLATES TABLE TO ENTER SERIAL NO AND DISTRIBUTOR FOREWORD 12 PW160 7H VEAM390100 ...
Page 18: ...18 PW160 7H VEAM390100 ...
Page 220: ...TROUBLESHOOTING OPERATION 220 PW160 7H VEAM390100 ...
Page 305: ...PW160 7H VEAM390100 305 SPECIFICATIONS ...
Page 307: ...SPECIFICATIONS SPECIFICATIONS PW160 7H VEAM390100 307 1 PIECE BOOM ...
Page 308: ...SPECIFICATIONS SPECIFICATIONS 308 PW160 7H VEAM390100 2 PIECE BOOM ...
Page 345: ......