Harbor Freight Tools 67853 manual Troubleshooting, Problem Possible Causes Likely Solutions

Page 16

Troubleshooting

Problem

 

Possible Causes

 

Likely Solutions

Engine will

COMPRESSOR SPECIFIC:

COMPRESSOR SPECIFIC:

not start

1.

Pilot Valve closed.

1.

Open pilot valve before start procedure, close after unit is

(Note: See engine

 

 

 

running.

2. Tank already pressurized.

2.

Turn engine on. Compressor will turn on as needed when

manual for engine

 

 

 

pressure reaches preset level.

specific issues.)

 

 

 

 

 

 

 

 

1.

Incorrect lubrication or not

1.

Lubricate using recommended oil or grease according to

Compressor

 

enough lubrication.

 

directions.

overheats

2. Worn parts.

2.

Have qualified technician inspect internal mechanism and

 

 

 

 

replace parts as needed.

 

1.

Poor air outlet seal.

1.

Tighten or re-attach using thread seal tape.

Severe air

2.

Loose cylinder/cylinder head.

2.

Tighten cylinder/cylinder head assembly. If cylinder/cylinder

 

 

 

head cannot tighten properly, internal parts may be misaligned.

leakage

 

 

 

3.

Damaged valve or housing.

3.

Replace damaged components.

 

 

4.

Dirty, worn or damaged valve.

4.

Clean or replace valve assembly.

 

1.

Low engine idle.

1.

Qualified technician should increase idle to 2,200±100 RPM by

 

 

 

 

adjusting pressure switch.

Unit stalls

2.

Severely clogged air filter.

2.

Replace air filter.

 

3.

Improper lubrication.

3.

Check for proper oil level.

4. Defective pilot/unloader valve. 4. Replace pilot valve.

1.Loose drive pulley or flywheel. 1. Loose pulleys are a common cause of “knocking”. Tighten appropriate bolts.

 

2.

Misaligned pulleys.

2.

Align pulleys with straightedge and secure in place.

Excessive noise

3.

Lack of oil in crankcase.

3.

Check for proper oil level.

4.

Worn connecting rod.

4.

Replace connecting rod.

 

 

5.

Worn wrist pin bushing.

5.

Remove piston assembly and replace necessary parts.

 

6.

Worn bearings.

6.

Replace bearings and oil.

 

7.

Loose belts.

7.

Check for proper belt tension.

 

1.

Wrong type of oil or low-

1.

Change oil. Check oil recommendations under Equipment

 

 

quality oil.

 

Set Up, Equipment Oil Fill section of this manual.

Oil in the

2.

Overheating.

2.

See above Excessive Noise section.

3.

Restricted intake air.

3.

Clean or replace air filter.

discharge air

4.

Worn piston rings.

4.

Replace piston rings.

 

 

5.

Excessive moisture in the

5.

Drain moisture from the tank daily.

 

 

tank.

 

 

 

1.

Air leaks.

1.

Listen for escaping air. Apply soap solution to all fittings and

 

 

 

 

connections. Bubbles will appear at points of leakage. Tighten

 

 

 

 

or replace leaking fittings or connections.

 

2.

Leaking valves.

2.

Remove head and inspect for valve breakage, weak

Low discharge

 

 

 

valves, scored valve plate, etc. Replace defective parts and

pressure

 

 

 

reassemble. Replace head gasket each time the head is

 

 

 

 

removed.

 

3.

Restricted air intake.

3.

Clean or replace air filter element.

 

4.

Blown gaskets.

4.

Replace and gaskets proven faulty on inspection.

 

5.

Slipping belts.

5.

Tighten Belts (See monthly maintenance.)

Follow all safety precautions whenever diagnosing or servicing the equipment or engine.

Page 14

For technical questions, please call 1-800-444 3353.

Item 67853

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Contents Using an engine indoors can Kill YOU MinutesPage Symbol Definitions Set up PrecautionsSafety Warnings Symbol Property or StatementCarbon Monoxide Hazard Using an engine indoors can Kill Engine Precautions Operating PrecautionsYOU in Minutes Service Precautions Air Compressor Safety WarningsEngine Controls Assembly Set upMounting to a Truck bed Break-In CompressorSpray Gun Portable Setup Description FunctionDescription Function Using the Compressor OperationBefore starting the Compressor To Start and Use the CompressorFor Manual Start StartMaintenance Break-in Period For technical questions, please call 1-800-444 Maintenance Procedures Compressor Pump Oil MaintenanceMaintenance Adding OilAir Filter Maintenance Adjusting Belt TensionChanging Oil Draining Moisture from the TankTroubleshooting Problem Possible Causes Likely SolutionsPlease Read the Following Carefully Pump Parts List Part Description QtyPump Assembly Diagram Tank Parts List Tank Assembly Diagram Limited 90 Day Warranty Specifications Mission Oaks Blvd. PO Box 6009 Camarillo, CA 93011 800212, 346 and 420 cc Horizontal Engines Description 68120 68136 68306 Eye Injury. Wear ANSI-approved Use only accessories that are recommended by Harbor Refueling Do not OverfillEngine Switch Air FilterBattery Setup Instructions Cable Gauge Maximum12′ To Prevent Serious InjuryStarting the Engine Pre-Start ChecksInjury from Fire Turn the Engine Switch on Manual StartStopping the Engine Break-in PeriodTurn the Engine Switch to Start Electric Start if equippedOFF Cleaning, Maintenance, and Lubrication Schedule ServiceTo Prevent Serious Injury from Accidental Starting To Prevent Serious Injury from Equipment FailureCleaning Air Filter Element MaintenanceEngine Oil Change Storage Recommended Spark PlugsTroubleshooting Problem Possible Causes Probable SolutionsDo not use gasoline with more than 10% ethanol E15, E20, E85, etcUse Engine will not start Compression Related sectionLimited 90 Day Warranty Emission Control System WarrantyManufacturer’s Warranty Coverage WarrantiesOwner’s Warranty Responsibilities 68120 212cc Parts List and Diagram 68120 212cc Parts List and Diagram 68121 212cc Parts List and Diagram 102 68136 346cc Parts List and Diagram List and Diagram 68136 346cc Parts68306 420cc Parts List and Diagram Part Description Qty68306 420cc Parts Item 68120 / 68121 212cc Mounting Hole DiagramsItem 68136 346cc and Item 68306 420cc Power Take-Off Diagrams 16-24UNFMission Oaks Blvd. PO Box 6009 Camarillo, CA 93011 800

67853 specifications

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Overall, the Harbor Freight Tools 67853 offers excellent value for users seeking a reliable and stylish tool chest that fulfills various storage needs. Its durable construction, ample storage, and thoughtful design make it a top choice in the market, catering to both hobbyists and seasoned professionals alike.
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