4. Pull out the jammed fastener and the 5.

If you are unable to clear the fastener

remainder of the fastener strip that is

jam using the method prescribed

still in the magazine. Dispose of the

above, the tool should be taken to a

remaining fastener strip; it may be

qualified service technician for proper

bent or damaged in some other way.

servicing.

Troubleshooting

Problem

 

Possible Causes

 

Likely Solutions

Insufficient

1. Not enough air pressure.

1.

Check for loose connections and make

fastener depth.

 

 

 

sure that air supply is providing enough air

 

 

 

 

pressure (PSI) to the tool’s air inlet. Do not

 

 

 

 

exceed maximum air pressure.

 

2.

Incorrect lubrication or not

2.

Lubricate using air tool oil and grease

 

 

enough lubrication.

 

according to directions.

 

3.

Blocked air inlet screen (if

3.

Clean air inlet screen of buildup.

 

 

equipped).

 

 

4.Mechanism contaminated. 4. Have qualified technician clean and lubricate mechanism. Install in-line filter in air supply as stated in Initial Set Up: Air Supply.

Fasteners drive

1.

Too much air pressure.

1.

Reduce air supply pressure (PSI).

too deeply.

 

 

 

 

Tool cycles

1.

Jammed fastener.

1.

Clear jammed fastener according to Clearing

without firing

 

 

 

Jams instructions.

fastener.

2.

Tool empty.

2.

Fill with correct fasteners.

 

3.

Incorrect fasteners used.

3.

Empty, then fill with correct fasteners.

 

4.

Magazine dirty or not

4.

Clean and lubricate magazine and pusher.

 

 

lubricated properly.

 

 

5.Insufficient air flow.5. Check for loose connections and make sure that air supply is providing enough air flow (CFM) and pressure (PSI) to the tool’s air inlet. Do not exceed maximum air pressure.

Frequent

Incorrect fastener type.

Confirm fastener diameter, type, length, angle,

jamming.

 

 

and collation type. Correct as needed.

Severe air

1. Cross-threaded housing

1.

Check for incorrect alignment and uneven

leakage.

 

components.

 

gaps. If cross-threaded, disassemble and

 

 

 

 

replace damaged parts before use.

 

2.

Loose housing.

2.

Tighten housing assembly. If housing cannot

 

 

 

 

tighten properly, internal parts may be

 

 

 

 

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 66995

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

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Harbor Freight Tools 66995 operating instructions Troubleshooting, Problem Possible Causes Likely Solutions