Maintenance Every 4000 Hours Of Operation; Changing The A/C Dewatering Filter (Only For Machines With Air Conditioner); Changing The Engine Thermostatic Valve - Komatsu WB93S-5 F50003 Operation & Maintenance Manual

MAINTENANCE PROCEDURES

4.8.14 MAINTENANCE EVERY 4000 HOURS OF OPERATION

Carry out these operations together with those to be performed every 50, 250, 500, 1000 and 2000 HOURS.
4.8.14.a CHANGING THE A/C DEWATERING FILTER (Only for machines with air
conditioner)
The coolant used in the air conditioning system is very dangerous. If it is sprayed into the eyes or in
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case of contact with the skin, it may cause blindness or frostbite.
To avoid any explosion, do not generate sparks and do not use naked flames near the air conditioner.
Oils, filters, the coolant and the battery are considered special waste and must be collected and
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disposed of according to the regulations in force.
Have the dewatering filter changed only by specialized personnel and for this purpose contact your
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Komatsu Dealer.
The filter (1) must be changed every 4000 hours of operation or
every 2 years, whichever occurs first.
The filter must also be changed whenever operations involving
the opening of the air conditioning system are performed.
4.8.14.b CHECKING THE OPERATING
CONDITIONS OF THE A/C COMPRESSOR
(Only for machines with air conditioner)
Specific equipment is required to check the operating conditions
of the compressor (1); have the compressor checked only by
specialized personnel and for this purpose contact your Komatsu
Dealer.
4.8.14.c CHANGING THE ENGINE THERMOSTATIC
VALVE
This procedure must be carried out by qualified personnel. Have
this operation performed by your Komatsu Dealer.
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AVVERTENZA
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RKAB5010
RKAB5020