Troubleshooting

Problem

 

Possible Causes

 

Likely Solutions

Decreased output.

1. Not enough air pressure and/

1.

Check for loose connections and make sure

 

 

or air flow.

 

that air supply is providing enough air flow

 

 

 

 

(CFM) at required pressure (PSI) to the

 

 

 

 

tool’s air inlet. Do not exceed maximum air

 

 

 

 

pressure.

 

2.

Obstructed trigger.

2.

Clean around trigger to ensure free

 

 

 

 

movement.

 

3.

Incorrect lubrication or not

3.

Lubricate using air tool oil and grease

 

 

enough lubrication.

 

according to directions.

 

4.

Blocked air inlet screen (if

4.

Clean air inlet screen of buildup.

 

 

equipped).

 

 

 

5.

Air leaking from loose housing.

5.

Make sure housing is properly assembled

 

6.

Mechanism contaminated.

 

and tight.

 

 

 

6.

Have qualified technician clean and lubricate

 

 

 

 

mechanism. Install in-line filter in air supply

 

7.

Vane wear or damage.

 

as stated in Initial Set Up: Air Supply.

 

 

 

7.

Replace all vanes.

Housing heats

1.

Incorrect lubrication or not

1.

Lubricate using air tool oil and grease

during use.

 

enough lubrication.

 

according to directions.

 

2.

Worn parts.

2.

Have qualified technician inspect internal

 

 

 

 

mechanism and replace parts as needed.

Severe air

1. Cross-threaded housing

1.

Check for incorrect alignment and uneven

leakage.

 

components.

 

gaps. If cross-threaded, disassemble and

(Slight air leakage

 

 

 

replace damaged parts before use.

is normal,

2. Loose housing.

2.

Tighten housing assembly. If housing cannot

especially on older

 

 

 

tighten properly, internal parts may be

tools.)

 

 

 

misaligned.

 

3.

Damaged valve or housing.

3.

Replace damaged components.

 

4.

Dirty, worn or damaged valve.

4.

Clean or replace valve assembly.

Follow all safety precautions whenever diagnosing or servicing the tool. Disconnect air supply before service.

SKU 98896

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

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Harbor Freight Tools 98896 operating instructions Troubleshooting, Problem Possible Causes Likely Solutions