Removing Compressor (Ras-5Fsg And Fs3) - Hitachi FSG Series Service Manual

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WARNING: TURN OFF all power source switches
2.1.5 REMOVING COMPRESSOR
(RAS-5FSG AND RAS-5FS3)
Do not expose the inner refrigeration cycle to the
atmosphere for a long period of time when replacing a
compressor to protect the cycle from mixing water or
foreing particles. If exposed for a long time, seal pipe ends
using caps or tape.
Remove the caps for the compressor just before replacing
the compressor.
Check to ensure each terminal No. when connecting
compressor power wires. If incorrectly connected, the
compressor will fail due to reverse rotation.
Before starting this work, collect refrigerant into a cylinder from
the cycle.
1. Remove front service panel according to the item 2.1.2,
'Removing Front Service Panel".
2. Release the lace for top cap of the compressor and remove
the top cap.
3. Remove the Td thermistor on the top of the compressor.
Note:
The thermostat fixer, holder, thermostat holder are used
again when reassembling.
Keep them in a box so that the parts are stored correctly.
4. Release the lace for the water-proof cover, open the water-
proof cover from the front side.
Note:
Remove the water-proof cover in the arrow mark direction
as shown by paying attention to the cut part of the water-
proof cover in order to avoid any damages.
5. Remove the terminal cover for the compressor and
disconnect the wiring to the compressor terminals. Check
to ensure that the terminals Nos. are indicated. If the
terminal Nos. are not identified, this will cause incorrect
wiring when reassembling.
Notes:
1 Check to ensure that the faston terminals for the
compressors are normal. When a pulling force of 2kg or
more is required, it is normal. If abnormal, replace the
faston terminals with new ones.
2 Check to ensure that wires are firmly fixed.
3 It is recommended that the faston terminals be clamped
to increase a contacting force after replacing the
compressor.
Water-proof
Cover
Direction to remove the cover
Heater cover
Terminal Code
Mark Band
Pull upper part of the cover
2
SERVICING
3
Cap
Lace
Thermostat Holder
Holder
Thermostat Holder
Td Thermistor
Water-proof
cover
Oil Heater
Wires
Terminal Box