Excell Precision E7540 operation manual Pressure reading

PROBLEM	CAUSE	CORRECTION
Pressure reading	It is normal for "some"	If there is an excessive amount
on the regulated	pressure drop to occur.	of pressure drop when the
pressure gauge		accessory is used, adjust the
		regulator as instructed in the
(if equipped)
		Operation section.
drops when an
		NOTE: Adjust the regulated
accessory is
		pressure under flow condi-
used.
		tions (while accessory is being
		used).
Air leak from	Possible defect in safety	Operate safety valve manually
safety valve.	valve.	by pulling on ring. If valve still
		leaks, it should be replaced.
Compressor is	Prolonged excessive use	Decrease amount of air usage.
not supplying	of air.	Check the accessory air re-
enough air to	Compressor is not large
operate acces-	enough for air requirement.	quirement. If it is higher than
sories.		the SCFM or pressure supplied
		by your air compressor, you
		need a larger compressor.
	Hole in hose.	Check and replace if required.
	Check valve restricted.	Remove and clean, or replace.
	Air leaks.	Tighten fittings.
	Restricted air intake filter.	Clean or replace air intake
		filter. Do not operate the air
		compressor with the filter re-
		moved. Refer to the "Air Filter"
		paragraph in the Maintenance
		section.
	Loose belt.	Check belt tension, see Adjust-
		ing Belt Tension in the Mainte-
		nance section.
Restricted air	Dirty air filter.	Clean or replace. See Air Filter
intake.		paragraph in the Maintenance
		section.

23-ENG A18791