Hitachi RHUE-3AVHN, Руководство по обслуживанию

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Servicing
Service Manual
244
RHUE-(3~6)A(V)HN
SMGB0066 rev.0 - 12/2009
Remove the crankcase heater.(Oil heater on the lower 5.
case).
Remove the suction pipe and the discharge pipe 6.
from the compressor. Isolate the wires and electrical
components to protect them from the burner flame
when brazing the connection pipes.
Remove the two (2) nuts fixing the compressor and 7.
remove the compressor from the unit by lifting it.
Slightly incline it forward and lift.
For brazing the compressor connection pipes, first 8.
cool down the compresor piping side covering it with
wet cloth. Then brazing material will not enter into
the compressor. If the brazing material enters the
compressor, it will cause compressor failures.
fixation of the compressor to the bottom plate
Compressor position 1 2 3 4
Vibration-proof rubber 1
   
Vibration-proof rubber 2
 
– –
Nut
 
– –
Reassemble the parts in the reverse order of the 9.
indicated removing procedures.
Tighten the screws (U, V and W) for compressor -
wires with 2.5N.m.
Fix the lead wire firmly. -

note
Fix the lead wire for the compressor firmly using a cable tie -
to avoid the contact between the metal sheet sharp edges
and the high temperature piping.
Suction pipe
Cover pipes with
wet cloth
Discharge pipe
Vibration-Proof
rubber 1
Vibration-Proof
rubber 2
Nut and
washer
See compressor
position table below