System Inspection

ON-VEHICLE INSPECTION

1. Check condenser fins for blockage or damage, if the fins are clogged, clean them with pressurized water.

CAUTION: Be careful not to damage the fins.

2. Check that the drive belt fits properly in the ribbed grooves.
3. Using a belt tension gauge, check the drive belt tension. Belt tension gauge:
Nippondenso BTG-20 (95506-00020) or
Borroughs No. BT-33-73F
Drive belt tension:
New Belt 175+/- 5 lb
Old Belt 115+/-2O lb

NOTE:
- "New belt" refers to a belt which has been used less than 5 minutes on a running engine.
- "Used belt" refer to a belt which has been used on a running engine for 5 minutes or more.
- After installing the drive belt, check that it fits properly in the ribbed grooves.

4. Start engine.
5. Turn ON A/C switch check that the A/C operates at each position of the blower switch.
6. Check magnetic clutch operation if magnetic clutch does not engage, check the A/C fuse.
7. Check that idle increases when the magnetic clutch engages, engine revolution should increase.
Standard idle-up rpm: 800 + 20 rpm
8. Check condenser fan motor rotates.
9. Check amount of refrigerant, if you can see bubbles in the sight glass, additional refrigerant is needed.
10. If no or insufficient cooling, inspect for leakage using a gas leak detector, inspect each component of the refrigeration system.