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PROBLEM
Compressor trips due to over
temperature��
Excessive coolant consumption��
Excessive noise level��
Shaft seal leaking��
Pressure relief valve opens��
Black residue on belt guard/cooler
box��
Safety valve blows when
compressor goes on load��
NOTES:
§
Must be carried out by a competent electrician��
This work is recommended to be carried out only by an Ingersoll Rand authorized service technician��
†
80448418 Rev.C
RELEASED 20/Jul/2016 17:56:55 GMT
All manuals and user guides at all-guides.com
TROUBLE SHOOTING
CAUSE
Compressor operating above rated
pressure��
Package pre–filter blocked��
Cooler blocked��
Missing or incorrectly fitted
enclosure panels��
Low coolant level��
High ambient temperature��
Restricted cooling air flow��
Separator cartridge leak��
Blocked separator cartridge drain��
Compressor operating below rated
pressure��
Coolant system leak��
Air system leaks��
Airend defective��
Belts Slipping��
Motor defective��
Loose components��
Defective shaft seal��
Pressure transducer faulty,
incorrectly calibrated or EMF
interference��
Minimum pressure valve
malfunction��
Load solenoid valve defective��
Blowdown valve defective��
Inlet valve malfunction��
Drive belt slipping��
Pulleys misaligned��
Worn pulleys��
Gas strut failed��
MPV Stuck closed��
Safety valve faulty��
REMEDY
Set pressure to correct rating for
machine��
Clean / replace package pre–filter��
Clean cooler��
Ensure that all enclosure panels are
correctly fitted��
Top up coolant and check for leaks��
Re–site compressor��
Ensure correct air flow to compressor��
Fit new separator cartridge��
† Remove fittings and clean��
Set pressure to correct rating for
machine��
† Fix leaks��
† Fix leaks��
† Change Airend��
Replace belt and tensioner��
† Replace motor��
† Retighten loose items��
† Fit Airend shaft seal kit��
Recalibrate or replace��
† Fit Minimum pressure valve service
kit��
† Fit load solenoid service kit��
† Fit blowdown solenoid service kit��
† Fit inlet valve service kit��
Replace belt and tensioner��
Re–align pulleys��
† Replace pulleys and belt��
Replace belt and tensioner��
Strip MPV, examine and repair if
necessary��
Check the setting of the safety valve
and the rated pressure��
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