Compressor/Pump: Testing and Inspection

INSPECTION

1. INSPECT HEIGHT CONTROL COMPRESSOR (EXHAUST VALVE)




a. Measure the resistance of the exhaust valve.




1. Measure the resistance according to the value(s) in the table.




b. Check the exhaust valve operation.
1. Connect terminal 1 to the battery positive (+) terminal, and terminal 2 to the battery negative (-) terminal.
2. Check the operating sound of the height control valve.

OK: It should make an operating sound (click).

2. INSPECT HEIGHT CONTROL COMPRESSOR (COMPRESSOR MOTOR)




a. Check the compressor operation.
1. Connect terminal 1 (B) to the battery positive (+) terminal, and terminal 2 (E) to the battery negative (-) terminal.
2. Check the operation of the compressor motor.

OK: Motor operates.

NOTE:
- Do not operate the height control compressor for 60 seconds or more.
- Since a short and a lock-up inside the height control compressor cause excessive current to flow, stop operation immediately when the compressor motor does not operate.