Hitachi RAS-2-HVNP Service Manual page 443

10. Servicing
7 Remove 2 nuts which fix the compressor and remove it by lifting it up with inclining forward.
N O T E
To remove the compressor the liquid stop valve pipe should be moved (bent) to the right side hand. PAY CLO-
SE ATTENTION not to crush to break the pipe.
8 When brazing the replaced compressor quickly perform the brazing while the compressor side piping is cooled with wet
cloth in order to avoid the brazing material from entering the compressor.
N O T E
PAY CLOSE ATTENTION not to let the filler metal enter into the compressor which may result in compressor
damage.
Vibration-proof
5
Rubber 2
9 Reassemble the parts in the reverse order of removing procedures.
a. Tighten the screws (U V and W) for compressor wires with 2.5 Nm.
b. Fix the wires firmly.
c. Attach the crankcase heater without torsion and gap to the compressor as following figure.
429
SMGB0079 rev.0 - 01/2013
Compressor
4
position
Nut
6
Vibration-proof
7
Rubber 1
Fixation of the compressor to the bottom plate
Compressor position 1
Vibration-proof rubber 1 x
Vibration-proof rubber 2 x
Nut x
Detail of Spring for Cranckase Heater
Detail of Spring for Crankcase Heater
Compressor
Cranckase Heater Crankcase Heater Compressor
When attaching the spring,
When attatching the spring,
pay attentio not to damage
pay attention not to damage
the cranckase heater.
the crankcase heater.
Suction pipe
1
2 3 4
x x x
x — —
x — —
Discharge
2
pipe
Cover pipes
3
with wet cloth
10