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©HALE PRODUCTS, INC. Our policy is one of continuous development. We therefore
reserve the right to amend specifications without notice or obligation.
Temperature sensor enables/disables the
compressor interlock. If temperature goes
outside of operating range or if system
loses signal from this sensor then the
clutch will be disabled.
• Clutch is not engaging
o No signal from this sensor.
o Oil temperature is outside of
operating range.
Oil lubricated twin screw compressor is
driven by gearbox by a herringbone drive
belt that is enabled by a pneumatic clutch.
Compressor is water cooled by plate heat
exchanger. Air is supplied and controlled
by the air intake valve.
• Clutch is not engaging
o See clutch section.
• Overheating
o Belt is not a correct tension
o Heat exchanger not functioning
o Oil is not at correct level
• No Air injection
o Air Intake Valve isn’t opening
o Air Injection Valve isn’t opening
Pneumatic Clutch that can be set through
the UV display to be engaged upon start
up or only when CAFS is needed. It
operates from truck air and is enabled by
a solenoid. The engagement timing is
controlled by a needle valve attached to
the engagement solenoid.
• Clutch is not engaging
o Clutch solenoid has failed
o Inadequate air supply
o Needle valve not set correctly.
o Interlocks are enabled.
• Overheating
o Oil is at incorrect level
o Plates are damaged
o Belt is installed crooked
o Belt is not at correct tension.
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