Hitachi FSG Series Service Manual page 118

2
SERVICING
4
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WARNING: TURN OFF all power source switches
6. Remove the heater cover and the spring for the oil heater,
and release the oil heater.
7. Disconnect the discharge pipe of the compressor.
Use two spanners when disassembling the flare-nuts.
8. Disconnect the suction pipe of the compressor. Use two
spanners when disassembling the flare-nuts.
Notes:
1 Completely wipe off the oil if the oil is spread to the
other parts such as the compressor cover, wiring,
bottom base, etc. If not, this will cause many problems
to the unit.
2 If the oil is spilt, charge new oil equivalent to the spilt oil.
3 Check to ensure that the oil is not foul. If foul, replace it
with new one.
9. Remove three nuts fixing the compressor and remove the
compressor.
Note:
When lifting the compressor, hold the discharge pipe
vertically and turn it to the right, and pull the compressor
towards the front side by paying attention to the
compressor leg not to touch the suction pipe.
10. Regarding remounting the compressor work, perform the
above work in the reverse processes.
Remove the spring
by expanding the
spring as shown
Heater Cover
Suction Pipe
Discharge Pipe
Suction Pipe
Pay attention to this
part not to touch the
compressor leg.
Front Side
Pull out the compressor toward the front side, and remove the
vibration absorbing rubbers.
Spring
Oil Heater
Discharge Pipe
Two spanners
Lift and move towards front Side
Pull towards front Side
Oil Heater
Special Nut
Vibration-proof Rubber