Check level of refrigerant (gas)
k
k
WARNING
If the refrigerant used in the air conditioner gets into your eyes or is splashed on your hands, it may
cause loss of sight or frostbite. Never touch the refrigerant. Do not loosen any part of the refrigerant
circuit.
Do not bring any open flame close to any point where the refrigerant gas is leaking.
If the level of the refrigerant (gas) is low, the cooling effect will be reduced. Perform the check while running the
engine at high idle and operating the air conditioner at high speed.
Check the condition of the refrigerant gas (HFC 134a) that cir-
culates the refrigerant circuit, through sight glass (inspection
window) at the refrigerant hose fitting.
(A) No bubbles in the coolant: Suitable
(B) Some bubbles in refrigerant flow (bubbles pass continuous-
ly): Insufficient
(C) Colorless, transparent: Lack of refrigerant
REMARK
When there are bubbles, the refrigerant gas level is low, so contact your Komatsu distributor to have refrigerant
added. If the air conditioner is run with the refrigerant gas level low, it will cause damage to the compressor.
RKA65170
MAINTENANCE PROCEDURE
MAINTENANCE
4-26
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Содержание PW118MR-11
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Страница 9: ...Do not repeatedly handle and lift loads FOREWORD VIBRATION LEVEL 1 7 WENAM00130...
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Страница 25: ...LOCATION OF SAFETY LABELS RKA64590 SAFETY SAFETY LABELS 2 3 WENAM00130...
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Страница 74: ...GENERAL VIEW MACHINE EQUIPMENT NAME RKA61930 GENERAL VIEW OPERATION 3 2 WENAM00130...
Страница 77: ...CONTROLS AND GAUGES NAMES RKA62690 OPERATION GENERAL VIEW 3 5 WENAM00130...
Страница 168: ...SWITCHES RKA63060 EXPLANATION OF COMPONENTS OPERATION 3 96 WENAM00130...
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Страница 329: ...MAINTENANCE Please read and make sure that you understand the SAFETY section before reading this section 4 1 WENAM00130...
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Страница 413: ...SPECIFICATIONS 5 1 WENAM00130...
Страница 445: ...REPLACEMENT PARTS 7 1 WENAM00130...
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