Troubleshooting (continued)

Problem

 

Cause

Solution

 

 

 

 

 

 

1.

Low material level

1.

Refill

 

2.

Cup tipped too far

2.

Hold upright

Sputtering Spray

3.

Clogged Air Vent

3.

Clean vent hole

4.

Loose fluid inlet connections

4.

Tighten

 

 

5.

Dry or loose fluid needle Packing Nut

5.

Lubricate and/or tighten

 

6.

Loose/damaged fluid tip/seat

6.

Adjust or replace

 

 

 

 

 

 

1.

No pressure at gun

1.

Check air hoses

Will Not Spray

2.

Fluid control not open enough

2.

Open fluid control

3.

Fluid too thick

3.

Thin fluid or increase pressure

 

 

 

 

 

(within Maximum range)

 

 

 

 

 

Overspray

1.

Improper application speed

1.

Move moderately and parallel

2. Improper distance from workpiece

2.

Adjust distance

 

3.

Too much pressure

3.

Reduce air pressure

 

 

 

 

 

 

1.

Dirty tip

1.

Clean

Fluid Tip Leakage

2.

Tight Packing Nut

2.

Loosen Packing Nut

3.

Broken fluid needle spring

3.

Replace

 

 

4.

Worn or damaged tip

4.

Replace tip and/or needle

 

 

 

 

 

 

1.

Dirty air valve/seat

1.

Clean

Air Leaking from

2.

Sticking air valve

2.

Lubricate

3.

Damaged air valve spring

3.

Replace

Air Cap

4.

Worn/damaged air valve/seat

4.

Replace

 

 

5.

Bent valve stem

5.

Replace

 

 

 

 

 

Fluid Leaking from

1.

Packing Nut loose

1.

Tighten without restricting

Packing Nut

2.

Packing worn or dry

2.

Replace or lubricate (non-silicone)

 

 

 

 

 

SKU 93974

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

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Image 19
Harbor Freight Tools 93974 operating instructions Problem Cause Solution, Sputtering Spray