Hitachi RAS-3-HVNC - Page 352

10. Servicing
338
SMGB0079 rev.0 - 01/2013
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 identied faulty replace with a new one.
b. Ensure the xture of the lead wires.
c. Attach the cranckase heater to the compressor without torsion and gap as shown in the gure below.
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.
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.