Harbor Freight Tools 68021 Troubleshooting, Problem Possible Causes Likely Solutions

Troubleshooting

Problem		Possible Causes		Likely Solutions
Insufficient	1. Not enough air pressure.		1.	Check for loose connections and make sure that air
fastener depth.				supply is providing enough air pressure (PSI) to the
				tool’s air inlet. Do not exceed 110 PSI maximum
				air pressure.
	2.	Incorrect lubrication or not	2.	Lubricate using air tool oil and grease according to
		enough lubrication.		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.	Incorrect tool depth setting.	1.	Adjust depth setting, if available.
too deeply.	2.	Too much air pressure.	2.	Reduce air supply pressure (PSI).
Tool cycles	1.	Jammed fastener.	1.	Clear jammed fastener according to Clearing Jams
without firing				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 120 PSI maximum air pressure.

Frequent	1.	Incorrect fastener type.	1.	Confirm fastener diameter, type, length, angle, and
jamming.				collation type. Correct as needed.
	2.	Bent or damaged safety	2.	Have tool serviced by qualified service technician.
		components.
Severe air	1.	Cross-threaded housing	1.	Check for incorrect alignment and uneven gaps. If
leakage.		components.		cross-threaded, disassemble and replace damaged
(Slight air leakage				parts before use.
is normal,	2.	Loose housing.	2.	Tighten housing assembly. If housing cannot tighten
especially on				properly, internal parts may be misaligned.
older tools.)	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 68021 For technical questions, please call 1-800-444-3353. Page 15