Refrigeration Service Operations (Rev 1/99)
62
4. Keep the compressor ports and the suction and dis-
charge lines for the compressor covered to prevent con-
tamination of system components.
5. Remove the compressor mounting screws. Remove the
compressor.
Installation
NOTE: Any compressor installed in this system must
contain the proper amount of compressor oil (see the
Specifications section). Always check to make sure that
the compressor contains the proper amount of oil. Follow
the system cleanup procedures to remove old oil from the
system.
1. Place the compressor in position and install the mount-
ing screws and the belt.
2. Use belt tension tool P/N 204-427 to adjust belt ten-
sion. The engine/compressor belt tension should be
adjusted to 58 on the gauge; the electric motor/com-
pressor belt should be adjusted to 57.
3. Connect the refrigeration hoses. Pour 2 oz (59 ml) of
compressor oil into the suction hose before installation.
4. Pressurize the system and test for leaks.
5. Evacuate the system and recharge.
CONDENSER COIL
Removal
1. Remove the refrigerant charge.
2. Remove the condenser cover.
3. Unsolder the inlet and liquid lines.
4. Remove the mounting hardware.
5. Remove the condenser coil.
Installation
1. Clean the tubes for soldering.
2. Place the coil in the unit and install the mounting hard-
ware.
3. Solder the inlet and liquid line connections.
4. Pressurize the system and test for leaks.
5. Evacuate the system.
6. Recharge the unit.
7. Reinstall the cover.
DRIER
Removal
1. Pump down the refrigeration system and equalize the
pressure to slightly positive.
2. Disconnect the ORS nuts at the ends of the drier.
3. Loosen the mounting hardware and remove the drier.
Installation
1. Place new O-rings in the ORS fittings on the ends of
the drier.
2. Install the new drier and tighten the mounting screws
and nuts.
3. Install and tighten the inlet ORS nut. Hold the drier
with a back-up wrench on the hex behind the ORS fit-
ting.
4. Release a small amount of refrigerant to purge the air
through the drier, and then tighten the outlet ORS nut.
5. Pressurize the system and inspect for leaks. If no leaks
are found, open the refrigeration valves and place the
unit in operation.
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