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.

Blocked air inlet screen (if

3.

Clean air inlet screen of buildup.

 

equipped).

 

 

4.

Air leaking from loose

4.

Make sure attachments are properly

 

attachment.

 

assembled to the housing and are tight.

 

 

5.

Have qualified technician clean and lubricate

5.Mechanism contaminated. mechanism. Install in-line filter in air supply as stated in Initial Set Up: Air Supply.

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

 

 

 

be tightened 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.

Product not

1.

Material too thick/thin.

1.

Check material being sprayed for proper

spraying correctly.

 

 

 

viscosity. Ordinarily texture products should

 

 

 

 

be the consistency of heavy cream. Wall

 

 

 

 

Texturing products are usually a bit heavier

 

 

 

 

than deck protecting products.

 

2.

Nozzle to large/small.

2.

If product is spraying to heavily, try using a

 

 

 

 

smaller Nozzle. Too light, change to a larger

 

 

 

 

Nozzle.

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

PLEASE READ THE FOLLOWING CAREFULLY

The manufacturer and/or distributor has provided the parts list and assembly diagram in this manual as a reference tool only. Neither the manufacturer or distributor makes any representation or warranty of any kind to the buyer that he or she is qualified to make any repairs to the product, or that he or she is qualified to replace any parts of the product. In fact, the manufacturer and/ or distributor expressly states that all repairs and parts replacements should be undertaken by certified and licensed technicians, and not by the buyer. The buyer assumes all risk and liability arising out of his or her repairs to the original product or replacement parts thereto, or arising out of his or her installation of replacement parts thereto.

SKU 66103

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

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Harbor Freight Tools 66103 operating instructions Troubleshooting, Problem Possible Causes Likely Solutions