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Model H3256/H3257 Spray Gun

-17

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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 H3256

Page 1: ...Y INDUSTRIAL INC WARNING NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL INC PC8212 PRINTED IN CHINA SPRAY GUN MODEL H3256 H3257 INS...

Page 2: ......

Page 3: ...RODUCTION 7 Foreword 7 Contact Information 7 Tool Data Sheet 8 SECTION 3 SET UP 9 Inventory 9 Assembly 10 Controls 10 SECTION 4 OPERATIONS 11 Spraying 11 Atomizing Cap and Fan Adjustments 13 SECTION 5...

Page 4: ...r proper accident prevention measures NOTICE Indicates an imminently hazardous situation which if not avoided WILL result in death or serious injury Safety Instructions For Pneumatic Tools 1 KEEP ALL...

Page 5: ...ing accessories 16 REDUCE THE RISK OF UNINTENTIONAL STARTING Do not carry tool with hand on trig ger and always disconnect from air when not in use 17 DISCONNECT TOOLS before ser vicing and changing a...

Page 6: ...r before cleaning changing attachments or when performing maintenance of any kind on this tool Additional Safety Instructions for Spray Guns 8 PROTECTIVE CLOTHING Protect exposed skin from overspray b...

Page 7: ...y s policy of continuous improve ment changes may be made at any time with no obligation on the part of Grizzly SECTION 2 INTRODUCTION Foreword Contact Information If you have any comments regarding t...

Page 8: ...l TYPE OF FEED Gravity Gravity FLUID TIP 1 4mm 1 8mm AIR CONSUMPTION 5 CFM 11 CFM INLET AIR PRESSURE 1 5 3 5 BAR 21 50 PSI 2 0 3 5 BAR 28 8 51 PSI FLUID PRESSURE Less than 10 PSI HVLP Greater than 10...

Page 9: ...possible inspection by the carrier or its agent Otherwise filing a freight claim can be difficult After you have unpacked the carton you should nd the following Model H3256 Inventory Figure 1 A Spray...

Page 10: ...ay Figure 3 Installing filter 2 Screw the cup onto the top of the body 3 Attach the air hose directly to the air fit ting on the spray gun or with a 1 4 NPS quick connect fitting not included 4 Attach...

Page 11: ...recommended in Tool Data Sheet on Page 8 or to the material manufacturer s recommendations 4 Adjust the atomizing cap to vertical or horizontal See Atomizing Cap and Fan Adjustments on Page 13 for fur...

Page 12: ...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 speed wh...

Page 13: ...caused by clogged atomizing holes on the atomizing cap horns see Cleaning on Page 15 Figure 7 Set up for horizontal stroke direction with vertical fan pattern Figure 8 Set up for vertical spray stroke...

Page 14: ...Provides regulated output pressure 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 G...

Page 15: ...ngers and the fluid tip with the ser vice wrench The fully disassembled gun should look like Figure 14 6 Rinse these parts thoroughly in sol vent then dry with compressed air or allow them to air dry...

Page 16: ...ray gun lubricant after cleaning A Atomizing Cap Threads B Air Valve Packing C Trigger Pin D Air Flow Control Valve E Pattern Control F Fluid Control Knob Allow the lubricant to coat threads and run i...

Page 17: ...gged 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 atomizi...

Page 18: ...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 19: ...Model H3256 H3257 Spray Gun 19 Notes...

Page 20: ...D NEEDLE SPRING 10 PH3256010 SWITCH WASHER 32 PH3256032 JOINT 11 PH3256011 LOCK SCREW 33 PH3256033 PAINT ADJUSTMENT KNOB 12 PH3256012 NUT 34 PH3256034 PHILLIPS SCREW 13 PH3256013 AIR CAP WASHER 35 PH3...

Page 21: ...3257034 FLUID ADJ NEEDLE 11 PH3257011 PLIABLE WASHER 35 PH3257035 FLUID NEEDLE SPRING 12 PH3257012 DIRECTION SCREW 36 PH3257036 JOINT 13 PH3257013 SPRING 37 PH3257037 FLUID ADJUSTMENT KNOB 14 PH325701...

Page 22: ...for death injuries to persons or property or for incidental contingent special or consequential damages arising from the use of our products To take advantage of this warranty contact us by mail or ph...

Page 23: ...__2 8 Years ____8 20 Years ____20 Years 6 How many of your machines or tools are Grizzly ____0 2 ____3 5 ____6 9 ____10 7 Do you think your machine represents a good value ____Yes ____No 8 Would you r...

Page 24: ...P O BOX 2069 BELLINGHAM WA 98227 2069 TAPE ALONG EDGES PLEASE DO NOT STAPLE Name________________________________ Street________________________________ City______________State______Zip_______ Send a...

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