Check the condition of the refrigerant gas (Hydrofluorocarbons
HFC-134a) that circulates the refrigerant circuit, through the
sight glass (1) (inspection window) of the receiver.
(A) Proper
No bubbles in refrigerant flow
(B) Insufficient
Some bubbles in refrigerant flow (bubbles pass continuously)
(C) None
Transparent with no color
REMARK
When there are bubbles, the refrigerant (gas) level is low, so ask your Komatsu distributor to add the refrigerant.
If the air conditioner continues to run with low refrigerant (gas) level, it will cause damage to the compressor.
METHOD FOR LUBRICATING BOOM SWING CYLINDER FOOT PIN
Items to be prepared
• Grease pump
• Cloth
1.
By using a grease pump, pump in grease through grease
fitting (1).
2.
After greasing, wipe off any old grease that is pushed out.
METHOD FOR WASHING WASHABLE FLOOR
k
k
WARNING
• Select a firm flat place for work.
• If the control levers or control pedals are touched by mistake, there is danger that the machine may
suddenly move and cause serious personal injury or death.
Always set the lock lever securely to LOCK position before leaving the operator's seat.
On the washable cab floor, it is possible to flush out the dirt directly with water.
MAINTENANCE
MAINTENANCE PROCEDURE
4-35
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Содержание PC30MR-5
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Страница 69: ... 14 Engine rear cover 15 Cooling cover 16 Battery OPERATION GENERAL VIEW 3 3 WENAM00150 ...
Страница 257: ...MAINTENANCE Please read and make sure that you understand the SAFETY section before reading this section 4 1 WENAM00150 ...
Страница 324: ...The accumulator is installed to the position shown in the figure MAINTENANCE PROCEDURE MAINTENANCE 4 68 WENAM00150 ...
Страница 325: ...SPECIFICATIONS 5 1 WENAM00150 ...
Страница 363: ...REPLACEMENT PARTS 7 1 WENAM00150 ...
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