Central Pneumatic 66871 Set Up And Operating Instructions Manual page 16

IMPORTANT: The Spray Gun must be cleaned immediately after use.
Improper cleaning is a common reason for the Spray Gun not to work.
Problem
1. Low material level.
Sputtering Spray
2. Cup tipped too far.
3. Clogged Air Vent.
4. Loose fluid inlet connections.
5. Dry or loose fluid needle
6. Loose/damaged fluid tip/seat.
1. No pressure at spray gun.
Will Not Spray
2. Fluid control not open enough.
3. Fluid too thick.
1. Improper application speed.
Overspray
2. Improper distance from
3. Too much air pressure.
Fluid Tip Leakage 1. Dirty tip.
2. Tight Packing Nut.
3. Broken fluid needle spring.
4. Worn or damaged tip.
1. Dirty air valve/seat.
Air Leaking from
Air Cap
2. Sticking air valve.
3. Damaged air valve spring.
4. Worn/damaged air valve/seat.
5. Bent valve stem.
1. Packing Nut Loose.
Fluid Leaking
from Packing Nut 2. Packing worn or dry.
Follow all safety precautions whenever diagnosing or servicing the
tool. Disconnect air supply before service.
If the steps above do not solve the problem or if the repairs
involved are too complex, contact a qualified technician.
For technical questions, please call 1-800-444-3353.
SKU 66871
Troubleshooting (continued)
Possible Causes
Packing Nut.
workpiece.
Likely Solutions
1. Refill.
2. Hold upright.
3. Clean vent hole.
4. Tighten inlet connections.
5. Lubricate and/or tighten fluid needle
Packing Nut.
6. Adjust or replace fluid tip.
1. Check air hoses.
2. Open fluid control.
3. Thin fluid or increase air pressure (within
Operating Air Pressure).
1. Move moderately and parallel.
2. Adjust distance.
3. Reduce air pressure.
1. Clean tip.
2. Loosen Packing Nut.
3. Replace fluid needle spring.
4. Replace tip and/or needle.
1. Clean air valve/seat.
2. Lubricate air valve/seat.
3. Replace air valve spring.
4. Replace air valve.
5. Replace air valve.
1. Tighten without restricting.
2. Replace or lubricate (non-silicone)
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