DeVillbiss Air Power Company MG2-OFTANK-4A, 38301-9615 warranty Storage, Troubleshooting Guide

Page 10

STORAGE

Before you store the air compressor, make sure you do the 2.

Protect the electrical cord and air hose from damage (such

following:

as being stepped on or run over). Wind them loosely around

1. Review the “Maintenance” and "Operating Procedures"

the compressor handle. (If so equipped)

 

sections and perform maintenance as necessary. Be sure

Store the air compressor in a clean and dry location.

to drain water from the air tank.

 

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 TANK AIR PRESSURE.

PROBLEM

CAUSE

CORRECTION

Excessive tank pressure - safety

Pressure switch does not shut off

Move the pressure switch lever to the “OFF” position.

valve pops off.

motor when compressor reaches “cut-

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

 

out” pressure.

contacts are welded together, replace the pressure

 

 

switch.

 

Pressure switch “cut-out” too high.

Contact an authorized service center to check and

 

 

replace pressure 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 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. Drain tank

 

 

then remove and clean or replace check valve. DO

 

 

NOT OVER-TIGHTEN.

 

 

 

Air leaks at pressure switch

Defectivepressureswitchreleasevalve.

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. Drain tank

 

 

then remove and clean or replace check valve. DO

 

 

NOT OVER-TIGHTEN.

 

 

 

Air leaks in air tank or at air tank

Defective air tank.

 

welds.

 

 

 

 

DO NOT DRILL INTO, WELD OR OTHERWISE

 

 

MODIFY AIR TANK OR IT WILL WEAKEN. THE

 

 

TANK CAN RUPTURE OR EXPLODE. TANK

 

 

MUST BE REPLACED.

 

 

 

Air leaks between head and valve

Leaking o-ring.

Torque head screws to 8 ft. lbs. If this does not stop

plate.

 

leak, replace o-ring.

 

 

 

Pressure reading on the regulated

It is normal for “some” pressure drop to

If there is an excessive amount of pressure drop

pressure gauge drops when an

occur.

when the accessory is used, adjust the regulator

accessory is used.

 

following the instructions on page 6.

 

 

NOTE:

 

 

Adjust the regulated pressure under flow

 

 

conditions (while accessory is being used).

 

 

 

Air leak from safety valve.

Possible defect in safety valve.

Operate safety valve manually by pulling on ring. If

 

 

valve still leaks, it should be replaced.

 

 

 

Knocking Noise.

Defective check valve.

Remove and clean, or replace.

 

 

 

10—ENG

Image 10
Contents Permanently Lubricated PORTABLE/STATIONARY AIR Compressor Sold as is Merchandise used as rental equipment To youExplosion or Fire Attachments AccessoriesRisk Electrical ShockRisk from Flying Objects What can Happen HOW to Prevent ITHazard Risk of Electrical Risk to Breathing Risk of Falling Risk from Moving PartsGeneral Information GlossaryDuty Cycle ON-RECEIPT InspectionInstalling Wheels, Handles, Rubber Foot Strip Items Needed For AssemblyDescription of Operation Installation and BREAK-IN Procedures Daily Start-Up Checklist Operating ProceduresBreak-in Procedures Grounding InstructionsMaintenance Troubleshooting Guide StorageCompressor with the filter removed. See Tripped Cally resetMotor will start automatically when tank pressure Terminal box areaService Notes