GMC MOC6L - Page 14

14
Troubleshooting continued
Problem Possible cause Suggested remedy
Vibration or abnormal noise
Loose part Use authorised service centre
to check and repair if necessary
Foreign body in main compressor Use authorised service centre
to check and clean if necessary
Piston connecting with the valve seat Use authorised service centre
to increase size of gasket
Moving parts excessively worn Use authorised service centre
to repair or replace
Insufficient pressure or decreased
outlet capacity
Motor running too slow Use authorised service centre to check
and repair if necessary
Leaking safety valve Use authorised service centre to repair
or replace the switch
Leaking pipe Use authorised service centre to check
and repair if necessary
Damaged gasket Use authorised service centre to check
and repair if necessary
Damaged or carbon coated valve seat Use authorised service centre to check
and repair if necessary
Damaged piston ring or cylinder Use authorised service centre to check
and repair if necessary
Incorrectly adjusted regulator Adjust and set the regulator correctly.