DeVillbiss Air Power Company MG3-OLPORT-3A Storage of Compressor Outfit, Troubleshooting Guide

Page 11

STORAGE OF COMPRESSOR OUTFIT

1.Review the "Maintenance" section on the preceding pages and perform scheduled maintenance as necessary. Drain the water from the air tank.

2.Set the ON/AUTO-OFF switch to the "OFF" position, and unplug the unit.

3.Remove any air tool or accessory.

4.Protect the electrical cord and air hose from damage (such as being stepped on or run over). Wind them loosely around the outfit handle.

5.Store the compressor in a clean and dry location.

TROUBLESHOOTING GUIDE

PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES, MOVING PARTS OR COMPRESSED AIR SOURCES. PERSONAL INJURY MAY OCCUR. PRIOR TO ATTEMPTING ANY REPAIRS, UNPLUG THE COMPRESSOR AND BLEED OFF ALL TANK AIR PRESSURE.

PROBLEM

CAUSE

CORRECTION

 

Excessive tank pressure - safety valve

Pressure switch does not shut off motor

Move the pressure switch lever to the

 

pops off.

when compressor reaches “cut-out”

“OFF” position. If the outfit doesn’t shut

 

 

 

pressure.

off, and the electrical contacts are

 

 

 

 

welded together, replace the pressure

 

 

 

 

switch.

 

 

 

 

If the contacts are good, check to see if

 

 

 

 

the pin in the bottom of the pressure

 

 

 

 

release valve is stuck. If it does not move

 

 

 

Pressure switch “cut-out” too high.

freely, replace the valve.

 

 

 

 

 

 

 

 

Return the outfit to an Authorized War-

 

 

 

 

ranty Service Center to check, remove

 

 

 

 

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 wa-

 

 

 

 

ter solution. DO NOT OVER-TIGHTEN.

 

 

 

 

 

 

Air leaks at or inside check valve.

Defective or dirty 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 at pressure switch

Defective pressure switch 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 welds.

Defective air tank.

Air tank must be replaced. Do not repair

 

 

 

 

the leak.

 

 

 

 

DO NOT DRILL INTO, WELD OR

 

 

 

 

OTHERWISE MODIFY AIR TANK

 

 

 

 

OR IT WILL WEAKEN. THE TANK

 

 

 

 

CAN RUPTURE OR EXPLODE.

 

 

 

 

 

 

Air leak from safety valve.

Possible defect in safety valve

Operate safety valve manually by pull-

 

 

 

 

ing on ring. If valve still leaks, it must be

 

 

 

 

replaced.

 

 

 

 

 

 

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Contents Safety Guidelines Definitions Table of ContentsONE Year from Date of Purchase Important Safety Instructions Risk from Cont’dON-RECEIPT Inspection GlossaryDuty Cycle General InformationInstallation and BREAK-IN Procedures Assembly InstructionsImproper Grounding can Result in ELEC- Trical Shock Grounding InstructionsVoltage and Circuit Protection Lubrication and OilPiping Operating ProceduresBreak-in Procedures Daily Start-Up ChecklistService Instructions MaintenancePressure Switch Replacement Belt ReplacementBelt Guard Removal and Installation Adjust Belt TensionNot OVER-TIGHTEN Troubleshooting GuideStorage of Compressor Outfit OVER-TIGHTEN Troubleshooting Guide ContdProblem Cause Correction Sure supplied by your air compressor Service Notes Service Notes Service Notes