Method For Replacing Slow-Blow Fuse - Komatsu H70051 Series Operation & Maintenance Manual

MAINTENANCE
Condition viewed through the
sight glass
MAINTENANCE AND SCHEDULE OF AIR CONDITIONER
Check point
Filter
Condenser
Belt
Refrigerant gas
Piping
Receiver drier

METHOD FOR REPLACING SLOW-BLOW FUSE

NOTICE
• When replacing the slow-blow fuse, be sure to turn the starting switch to OFF position and, after
confirming that the system operating lamp is not lit, set the battery disconnect switch key to OFF
position.
• Replace the slow blow fuse with the one of the same capacity.
Should the slow-blow fuse is blown, investigate the cause and take necessary actions.
The slow-blow fuse is on the side of the engine on the left side of the machine.
1.
Remove the cover (1).
2.
Open the cover (2) of the slow-blow fuse box and check it.
3.
Turn the starting switch to OFF position (A).
4.
Turn the battery disconnect switch key to OFF position.
Check that the system operating lamp is not lit.
5.
Remove the slow-blow fuse box from the machine body.
Milky white: Oil and refrigerant are separated and their mixture is milky white.
Check items
Clogging, dirt
Clogging, dirt
Looseness, damage
Charge amount
Looseness, damage, leak-
age
-
State of refrigerant flow
Maintenance schedule
Check before op- 6 months inspec-
eration
Implement
Implement
Implement
- Implement
- Implement
-
MAINTENANCE PROCEDURE
Replacement in-
tion terval
- 2 years
- -
- 2 years
-
-
- 2 years
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