Insufficient pressure or decreased

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	Motor running too slow	Use authorised service centre to check
outlet capacity		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.

outlet capacity