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13 — ENG

PROBLEM

CAUSE

CORRECTION

Motor overload protection switch has
tripped.

Tank pressure exceeds pressure switch
“cut-in” pressure.

Wrong gauge wire or length of exten-
sion cord.

Check valve stuck open.

Loose electrical connections.

Possible defective motor or capacitor.

Paint spray on internal motor parts.

Fuse blown, circuit breaker tripped.

Pressure release valve on pressure
switch has not unloaded head pres-
sure.

Damaged regulator.

Let motor cool off and overload switch will automati-
cally reset.

Motor will start automatically when tank pressure
drops below “cut-in” pressure of pressure switch.

Check for proper gauge wire and cord length.

Remove and clean, or replace.

Check wiring connection inside pressure switch and
terminal box area.

Contact an Authorized Warranty Service Center for
inspection or replacement, if necessary.

Have checked by an Authorized Warranty Service
Center.  Do not operate the compressor in the paint
spray area.  See flammable vapor warning.

1.

Check fuse box for blown fuse and replace, if
necessary.  Reset circuit breaker. Do not use a
fuse or circuit breaker with higher rating than that
specified for your particular branch circuit.

2.

Check for proper fuse; only “Fusetron” type T
fuses are acceptable.

3.

Check for low voltage conditions and/or proper
extension cord.

4.

Disconnect the other electrical appliances from
circuit or operate the compressor on its own
branch circuit.

Bleed the line by pushing the lever on the pressure
switch to the “off” position; if the valve does not open,
replace it.

Replace regulator.

Motor will not run or restart.

Regulator knob has continuous
air leak. Regulator will not shut
off air outlet.

Summary of Contents for MG7-OFTWIN

Page 1: ...E 12 13 TABLE OF CONTENTS SAFETY GUIDELINES DEFINITIONS Information for preventing damage to equipment This manual contains information that is important for you to know and understand This informatio...

Page 2: ...er installation and start up cost ANY INCIDENTAL INDIRECT OR CONSEQUENTIAL LOSS DAMAGE OR EXPENSE THAT MAY RESULT FROM ANY DEFECT FAILURE OR MALFUNCTION OF THE PRODUCT Some states do not allow the exc...

Page 3: ...ER DRILL INTO WELD OR MAKE ANY MODIFICATIONS TO THE TANK OR ITS ATTACHMENTS THE TANK IS DESIGNED TO WITHSTAND SPECIFIC OPERATING PRESSURES NEVER MAKE ADJUSTMENTS OR PARTS SUBSTITU TIONS TO ALTER THE F...

Page 4: ...RMED BY AUTHORIZED SERVICE CEN TER PERSONNEL IN ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES MAKE CERTAIN THAT THE ELECTRICAL CIRCUIT TO WHICH THE COMPRESSOR IS CONNECTED PROVIDES PROPER ELECTR...

Page 5: ...ociety of Mechanical Engineers made tested inspectedandregisteredtomeetthestandardsofASME California Code Unit may comply with California Code 462 L 2 M 2 Specification modellabelisonthesideofthetanko...

Page 6: ...rom a higher to a lower setting first reduce to some pressure less than that desired then bring up to the desired pressure Depending on the air requirements of eachparticularaccessory theoutletregulat...

Page 7: ...an extension cord must be used do not use with any permanently mounted air compressor use only a 3 wire extension cord that has a 3 blade grounding plug and a 3 slot receptacle that will accept the p...

Page 8: ...hecompressorisproperlygrounded have the installation checked by a qualified electrician GROUNDING INSTRUCTION Portable Units RISK OF ELECTRICAL SHOCK In the event of a shortcircuit groundingreducesthe...

Page 9: ...to OFF and the air regulator or globe valve is closed 2 Attach hose and accessories TOO MUCH AIR PRESSURE CAUSES A HAZARD OUSRISKOFBURSTING CHECKTHEMANUFAC TURER SMAXIMUMPRESSURERATINGFORAIR TOOLS AND...

Page 10: ...w the check valve turn counterclockwise using a socketwrench 6 Check that the valve disc moves freely inside the check valveandthatthespringholdsthediscintheupper closed position The check valve may b...

Page 11: ...oosely around the compressor handle 3 Store the air compressor in a clean and dry location Before you store the air compressor make sure you do the following 1 Review the Maintenance and Operating Pro...

Page 12: ...you need a larger compressor Clean or replace air intake filter Do not operate the air compressor with the filter removed See page 8 Check and replace if required Remove and clean or replace Tighten...

Page 13: ...and terminal box area Contact an Authorized Warranty Service Center for inspection or replacement if necessary Have checked by an Authorized Warranty Service Center Do not operate the compressor in th...

Page 14: ...14 ENG SERVICE NOTES NOTAS DE SERVICIO NOTES SUR LE SERVICE...

Page 15: ...15 ENG SERVICE NOTES NOTAS DE SERVICIO NOTES SUR LE SERVICE...

Page 16: ...DeVilbiss Air Power Company 213 Industrial Drive Jackson TN 38301 9615 GENERAL MANUAL FOR PERMANENTLY LUBRICATED TWIN CYLINDER AIR COMPRESSORS SERVICE NOTES...

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