DeVillbiss Air Power Company MGP-FAC1025-2 owner manual Troubleshooting Guide

Page 10

TROUBLESHOOTING GUIDE

PERFORMINGREPAIRSMAYEXPOSEVOLTAGESOURCES,MOVINGPARTSORCOMPRESSED AIR SOURCES. PERSONAL INJURY MAY OCCUR. PRIOR TO ATTEMPTING ANY REPAIRS, UNPLUG THE COMPRESSOR AND BLEED OFF TANK AIR PRESSURE.

PROBLEM

CAUSE

CORRECTION

 

 

 

Excessive tank pressure -

Pressure switch does not shut off mo-

Move the pressure switch lever to the “OFF” posi-

safety valve pops off.

tor when compressor reaches “cut-

tion. If the outfit doesn’t shut off, unplug. If the

 

out” pressure.

electrical contacts are welded together, replace

 

 

the pressure switch.

 

 

Pressure '"cut-out" too high.

Return the outfit to an authorized dealer to check

 

 

 

and adjust, or replace switch.

 

 

 

 

 

Air leaks at fittings.

Tube fittings are not tight enough.

Tighten fittings where air can be heard escaping.

 

 

 

Check fittings with soapy water solution. DO NOT

 

 

 

OVER-TIGHTEN.

 

 

 

 

 

Air leaks at or inside check

Defective or dirty check valve.

A defective check valve results in a constant air leak

valve.

 

at the pressure release valve when there is pressure

 

 

 

in the tank and the compressor is shut off. Remove

 

 

 

and clean or replace check valve. DO NOT OVER-

 

 

 

TIGHTEN.

 

 

 

 

Air leaks at pressure switch

Defective pressure release valve.

Remove and replace the release valve.

release valve.

 

 

 

 

 

Defective check valve.

A defective check valve results in a constant air leak

 

 

 

at the pressure release valve when there is pressure

 

 

 

in the tank and the compressor is shut off. Remove

 

 

 

and clean or replace check valve. DO NOT OVER-

 

 

 

TIGHTEN.

 

 

 

 

Air leaks in air tank or at air tank

Defective air tank.

Air tank must be replaced. Do not repair the leak.

welds.

 

 

 

 

 

 

DO NOT DRILL INTO, WELD OR OTHERWISE

 

 

 

MODIFY AIR TANK OR IT WILL WEAKEN.

 

 

 

THE TANK CAN RUPTURE OR EXPLODE.

 

 

 

 

Pressure reading on the regu-

It is normal for “some” pressure drop to

If there is an excessive amount of pressure drop

lated pressure gauge drops

occur.

when the accessory is used, adjust the regulator

when an accessory is used.

 

following the instructions on page 7.

 

 

 

NOTE

 

 

 

Adjust the regulated pressure under

 

 

 

flow conditions (while accessory is be-

 

 

 

ing used).

10 — ENG

Image 10
Contents FAC1025 Table of Contents ONE Year from Date of Purchase Important Safety Instructions Important Safety Instructions cont’d Glossary Description of Operation Grounding Instructions Operating Procedures Troubleshooting Guide Troubleshooting Guide Parts List AIR Compressor Diagram Not ILLUSTRATEDH-2099 ENG Permanently Lubricated AIR Compressor