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B5.9G, B5.9LPG – Troubleshooting and Repair Manual – 012-017   Air Governor (Air Compressor Will Not Pump)

Table of Contents

Initial Check

Initial Check

 TOC

NOTE: The illustrations shown will be of the SS model single cylinder air compressor. Differences in procedures for Holset® models SS, QE, ST, and Cummins air compressors will be shown where necessary.

Remove the air governor or air governor line from the air compressor unloader body.

SMALL | MEDIUM | LARGE


Operate the engine to activate the air compressor.

If the air compressor is pumping, the air governor is malfunctioning and must be repaired or replaced. Refer to the manufacturer’s instructions.

SMALL | MEDIUM | LARGE
   


If the air compressor does not pump, remove, clean, and inspect the air compressor unloader valve assembly. Refer to Air Compressor Unloader Valve. Refer to the .

If the unloader valve assembly is okay, clean and inspect the exhaust valve assembly. Refer to the .

NOTE: Not all air compressors referenced may be used on your engine or application.

SMALL | MEDIUM | LARGE
Last Modified:  03-Apr-2002
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