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14

PROBLEM

CAUSE

CORRECTION

Motor overload protection switch has
tripped.

Possible defective starting capacitor.

Possible defective motor.

Tank pressure exceeds pressure switch
"cut-in" pressure.

Check valve stuck open - fails to relieve
head pressure; motor cannot start.

Loose electrical connections.

Fuse blown, circuit breaker tripped.

Pressure release valve on pressure switch
has not unloaded head pressure.

Paint spray on internal motor parts.

Dirty air filter.

Prolonged excessive use of air.

Compressor is not large enough for air
requirement.

Restricted air intake filter.

Loose belt.

Hole in hose.

Check valve restricted.

Air leaks.

Motor will not run.

Restricted air intake.

Compressor is not supplying enough air to
operate accessories.

Let the motor cool off and reset switch by
pressing the red button located on the end
of the motor. If the overload still trips,
check for defective capacitor.

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

Have checked by a local Authorized War-
ranty Service Center.

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

Remove and clean, or replace. 

DO NOT

OVER-TIGHTEN. 

(See page 11)

Check wiring connection inside pressure
switch and motor terminal box area.

1.Check fuse box for blown fuse and re-

place 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 Buss

"Fusetron" Type T fuses are accept-
able.

3. Check for low voltage conditions.
4. Remove check valve and clean or re-

place if it is stuck open or closed. (See
page 11)

5. Disconnect any other electrical appli-

ances from circuit. The compressor
must operate on its own branch circuit.

6. Do not use an extension cord.

Bleed the line by pushing the lever on the
pressure switch to the OFF position, open-
ing the pressure release valve. If the valve
still doesn't open, it must be replaced.

Have checked by an Authorized Warranty
Service Center. Do not operate the com-
pressor in the spray area. See Flammable
Vapor Warning.

Replace filter.

Decrease amount of air usage.

Check the accessory air requirement. If it
is higher than the CFM, SCFM or pressure
supplied by your air compressor, you need
a larger compressor.

Clean or replace air intake filter. Do not
operate the compressor in the paint spray
area.

Adjust belt tension. (See page 12)

Check and replace if required.

Remove and clean or replace. (See page
11)

Tighten fittings. (See "Air Leaks" section of
"Troubleshooting Guide".)

Summary of Contents for MG5-OLSTAT-3A

Page 1: ...ve the following information Model number of your product Part number and description of the item you wish to purchase Retain Original Sales Receipt as Proof of Purchase for Warranty Repair Work TABLE OF CONTENTS SAFETY GUIDELINES 1 WARRANTY STATEMENT 2 WARNING CHART 3 4 SPECIFICATIONS 5 GLOSSARY 5 DUTY CYCLE 5 GENERAL INFORMATION 5 ON RECEIPT INSPECTION 5 DESCRIPTION OF OPERATION 6 INSTALLATION A...

Page 2: ...t Authorized Warranty Service Center that provides on site service calls for service call arrangement If the purchaser does not receive satisfactory results from the Authorized Warranty Service Center the purchaser should contact DeVilbiss Air Power Company ExCell Manufacturing Merchandise sold as reconditioned floor models and or display models Any damaged or incomplete equipment sold as is Merch...

Page 3: ...TTACHMENTS THE TANK IS DESIGNED TO WITHSTAND SPECIFIC OPERATING PRESSURES NEVER MAKE ADJUSTMENTS OR PARTS SUBSTI TUTIONS TO ALTER THE FACTORY SET OPERATING PRESSURES FOR ESSENTIAL CONTROL OF AIR PRES SURE YOU MUST INSTALL A PRESSURE REGULATOR AND PRESSURE GAUGE TO THE AIR OUTLET OF YOUR COMPRESSOR FOLLOW THE EQUIPMENT MANUFACTUR ERS RECOMMENDATION AND NEVER EXCEED THE MAXIMUM ALLOWABLE PRES SURE R...

Page 4: ...OMPONENTS REMOVED OR DAMAGE ANY ELECTRICAL WIRING OR REPAIRS RE QUIRED ON THIS PRODUCT SHOULD BE PERFORMED 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 ELECTRICAL GROUNDING CORRECT VOLTAGE AND AD EQUATE FUSE PROTECTION ALWAYS WEAR ANSI Z87 1 APPROVED SAFET...

Page 5: ... 50 of one hour is DUTY CYCLE considered misuse because the air compressor is undersized for the required air demand Maximum compressor pumping time per hour is 30 minutes You have purchased an air compressor unit consisting of an aluminum 2 cylinder single stage air compressor pump with cast iron sleeves an air tank and associated controls and instru ments You will also find a Parts Manual Your a...

Page 6: ... end of each use Air Intake Filter This filter is designed to clean air coming into the pump This filter must always be clean and ventilation openings free from obstructions See Maintenance AirCompressorPump Tocompressair thepistonsmovesupand down in the cylinder On the downstroke air is drawn in through the airintakevalves Theexhaustvalveremainsclosed Ontheupstroke of the piston air is compressed...

Page 7: ...ious damage may result if the following break in instructions are not closely followed Break in Procedures Wiring Instructions Perform electrical wiring according to the following instructions Install the compressor outfit as close to the main power supply as possible This practice will avoid using long lengths of electrical wiringforthepowersupplywhichcancausepowerlossanddamage to the motor When ...

Page 8: ...g It is recommended that a flexible coupling be installed between the air discharge valve outlet and main air distribution line to allow for vibration To remove dirt oil and water install a separator in the main distribution line Install separator 5 to 6 feet from compressor to allowtheairtocooltoroomtemperaturebeforepassingthroughthe separator Additional separators or filters may be used dependin...

Page 9: ...r air leaks Even minor leaks can cause the compressor to over work resulting in premature breakdown or unsatisfactory performance 4 Check for any unusual vibration and noise 5 Check for oil leaks Correct any leaks found Compressed air from the outfit may contain water condensation and oil mist Do not spray unfiltered air at an item that could be damaged by moisture or oil mist Some air operated to...

Page 10: ...as been drained close the drain cock The air compressor can now be stored NOTE If the drain cock valve is plugged release all air pressure The valve can then be removed cleaned and reinstalled DRAIN TANK DAILY WATER WILL CONDENSE IN THE AIR TANK IF NOT DRAINED WATER WILL CORRODE AND WEAKEN AIR TANK CAUSING A RISK OF AIR TANK RUPTURE OPERATING PROCEDURES cont d 5 When You Are Finished drain tank pr...

Page 11: ...h 7 8 4 Check that the valve disc moves freely and that the spring holds the disc in the upper closed position The check valve may be cleaned with a solvent 5 Apply sealant to the check valve threads Reinstall the check valve turn clockwise DO NOT OVERTIGHTEN 6 Replace the outlet tube and tighten top and bottom tube nuts DO NOT OVERTIGHTEN Safety Valve Inspection and Replacement IF THE SAFETY VALV...

Page 12: ...URE CONTROL RELATED DEVICE IF REPLACEMENT IS NECESSARY THE SAME RATED SWITCH MUST BE USED CONTACT A DEVILBISS AIR POWER AUTHORIZED SERVICE CENTER FOR REPLACEMENT Motor Overload Protector Reset The motor has a manual thermal overload protector If the motor overheats for any reason the overload protector will shut off the motor The motor must be allowed to cool down before restarting Turn the unit o...

Page 13: ...ervice Center to check remove or re place switch Tighten fittings where air can be heard escaping Check fittings with soapy water solution DO NOT OVER TIGHTEN A defective check valve results in a con stant 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 See page 11 Remove and replac...

Page 14: ...R TIGHTEN See page 11 Check wiring connection inside pressure switch and motor terminal box area 1 Check fuse box for blown fuse and re place 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 Buss Fusetron Type T fuses are accept able 3 Check for low voltage conditions 4 Rem...

Page 15: ...y and flywheel must be in line within 1 32 See Pulley and Flywheel Alignment section on page 12 Adjust belt tension See Belt Replace ment section on page 12 Add oil to top of fill hole in base If there is an excessive amount of pressure drop when the accessory is used adjust the regulator NOTE Adjust the regulated pressure under flow conditions while the accessory is being used See oil recommendat...

Page 16: ...DeVilbiss Air Power Company 213 Industrial Drive Jackson TN 38301 9615 General Manual Oil Lubricated Single Stage Stationary Air Compressors SERVICE RECORD ...

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