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Model H8224 HVLP Spray Gun

-12

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Troubleshooting

Symptom

Possible Cause

Solution

Fluttering or spitting 
spray.

1. Dry or worn fluid tip seat per-

mits air to seep into fluid pas-
sage.

2. Material level too low.
3. Fluid tip or filter obstructed.
4. Dry needle packing.

1. Tighten fluid tip or replace 

seat with new one.

2. Add material.
3. Clean.
4. Lubricate needle.

Uneven top or bot-
tom pattern. 

1. Atomizing cap holes are 

obstructed.

2. Build-up on top or bottom of 

fluid tip.

3. Build-up on atomizing cap is 

on needle seat.

1. Clear holes.

2. Clean.

3. Clean.

Right or left arc 
pattern.

1. Left or right side horn holes 

are plugged.

2. Build-up on left or right side of 

fluid tip.

3. Build-up of material inside 

atomizing cap.

1. Clear holes.

2. Clean.

3. Clean.

Heavy deposit of 
material in center.

1. The material flow exceeds the 

atomizing cap capacity.

2. Inlet air pressure is too low.
3. Material is too thick.

1. Lower fluid flow.

2. Increase inlet air pressure.
3. Thin material.

Narrow center pat-
tern.

1. Volume control turned in too 

far.

2. Inlet air pressure too high.
3. Fluid pressure is too low.
4. Material is too thin.

1. Increase volume.

2. Reduce inlet air pressure.
3. Increase fluid pressure.
4. Adjust material.

No spray output.

1. No pressure at gun.
2. Fluid passages dirty.

3. Fluid control closed.
4. Out of paint.
5. Material too thick.

1. Check air supply.
2. Clean gun, remove any 

obstructions.

3. Open.
4. Refill.
5. Thin to manufacturer's rec-

ommendations.

Summary of Contents for H8224

Page 1: ...Y GRIZZLY INDUSTRIAL INC WARNING NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL INC TR9837 PRINTED IN CHINA MODEL H8224 HVLP SPRAY...

Page 2: ...elow Remember that safety messages by themselves do not eliminate danger and are not a substitute for proper accident prevention measures Indicates a potentially hazardous situation which if not avoid...

Page 3: ...is spray gun if you are overly tired or intoxicated Using this spray gun during these times may increase the risk of injury or fire 13 UNTRAINED UNSUPERVISED USE Untrained operators may not be aware o...

Page 4: ...ave any service questions or parts requests please call or write us at the location listed below Grizzly Industrial Inc 1203 Lycoming Mall Circle Muncy PA 17756 Phone 570 546 9663 Fax 800 438 5901 E M...

Page 5: ...1 E Plastic Filters 2 Note One of the plastic filters may come pre installed in the spray gun Inventory Before assembling and using the spray gun thoroughly clean and dry all parts Please refer to Cle...

Page 6: ...ontrol Atomizing Cap Trigger Fluid Control Air Flow Control Cup 3 Install and tighten the barbed hose fitting to the air inlet with the provided nut or attach a female 1 4 NPT quick connect fitting no...

Page 7: ...he material manufac turer s recommendations 4 Adjust the atomizing cap to vertical or horizontal See Atomizing Cap and Fan Adjustments on Page 8 for fur ther explanation 5 Fill the cup with material 6...

Page 8: ...ts 10 Begin spraying 2 3 inches before the work and continue to the end of the work Continue the motion for a few inches past the work until you are ready for the return stroke 11 Maintain an even spe...

Page 9: ...spraying patterns Spraying in the wrong direction may lead to material build up on the atomizing cap horn Many performance problems are caused by clogged atomizing holes on the atomizing cap horns see...

Page 10: ...of 0 to 125 PSI for proper tool operation Locking pressure knob prevents accidental adjustments 15 SCFM flow capacity 90 PSI 1 4 NPT Figure 11 Red rubber air hose G8114 3 8 x 25 Ft Air Hose G8115 3 8...

Page 11: ...ressed air or let air dry Try not to expose O rings to solvent or they may get damaged Note If the small holes in the atomiz ing cap become blocked soak in clean solvent If the blockage still exists c...

Page 12: ...gun lubricant after cleaning A Atomizing Cap Threads B Air Valve Packing C Trigger Pin D Pattern Control E Fluid Control Knob F Air Flow Control Knob Allow the lubricant to coat threads and run into g...

Page 13: ...ged 2 Build up on left or right side of fluid tip 3 Build up of material inside atomizing cap 1 Clear holes 2 Clean 3 Clean Heavy deposit of material in center 1 The material flow exceeds the atomizin...

Page 14: ...rom gun 1 Fluid tip loose 2 Dry or damaged seals 3 Excessive pressure 1 Tighten 2 Replace seals 3 Reduce pressure Thick dimpled fin ish orange peel appearance 1 Holding gun too close to sur face 2 Inl...

Page 15: ...011 SWITCH KNOB 36 PH8224036 FLUID ADJUST KNOB 12 PH8224012 SWITCH WASHER 37 PH8224037 FLAT HD SCR M2 5 45 X 8 13 PH8224013 DIRECTION SCREW 38 PH8224038 PATTERN ADJUST KNOB 14 PH8224014 ATOMIZATION CA...

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