Hitachi RAS-2-HVNP Service Manual page 352

10. Servicing
10 Perform in the reverse procedure of removing after replacing the compressor.
a. Check if the Faston terminal has any abnormality. (Ensure the pull out force greater than 20 Nm) If the Faston ter-
minal is identified faulty replace with a new one.
b. Ensure the fixture of the lead wires.
c. Attach the cranckase heater to the compressor without torsion and gap as shown in the figure below.
N O T E
• To prevent contamination of the refrigerant by water or foreign materials, do not expose the refrigerant parts
open to atmosphere for long periods. If necessary, seal pipe ends using caps or tape.
• Remove the cap for compressor right before replacing the compressor. When replacing the com-
pressor, seal the tape at the suction and the discharge pipes to prevent foreign materials.
Remove it when brazing pipes.
• Securely check terminal numbers and mark bands before disconnecting lead wires. When reas-
sembling the lead wires, connect them to match surely the terminal numbers and the mark bands.
If the lead wires are connected incorrectly to the terminal, the compressor will be damaged due to reverse
rotation.
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SMGB0079 rev.0 - 01/2013
Detail of Spring for Cranckase Heater
Detail of Spring for Crankcase Heater
Cranckase Heater Crankcase Heater
When attaching the spring,
When attatching the spring,
pay attentio not to damage
pay attention not to damage
the cranckase heater.
the crankcase heater.
Compressor
Compressor