Hitachi RAS-4-HNC - Page 395

10. Servicing
381
SMGB0079 rev.0 - 01/2013
10
7 Remove 2 nuts which x 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llermetalenterintothecompressorwhichmayresultincompressor
damage.
1
2
3
4
5
6
7
Vibration-proof
Rubber 2
Vibration-proof
Rubber 1
Nut
Compressor
position
Cover pipes
with wet cloth
Suction pipe
Discharge
pipe
Fixation of the compressor to the bottom plate
Compressor position 1 2 3 4
Vibration-proof rubber 1 x x x x
Vibration-proof rubber 2 x x — —
Nut x x — —
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 rmly.
c. Attach the crankcase heater without torsion and gap to the compressor as following gure.
Crankcase Heater Compressor
When attatching the spring,
pay attention not to damage
the crankcase heater.
Detail of Spring for Crankcase Heater
Detail of Spring for Cranckase Heater
Cranckase Heater
Compressor
When attaching the spring,
pay attentio not to damage
the cranckase heater.