SPRAY GUN MODEL H3256/H3257 INSTRUCTION MANUAL H3256 H3257 COPYRIGHT © MAY, 2006 BY 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.
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Table of Contents SECTION 1: SAFETY .......................................................................................................4 Safety Instructions For Pneumatic Tools ....................................................................5 Additional Safety Instructions for Spray Guns ............................................................6 SECTION 2: INTRODUCTION .........................................................................................7 Foreword..............................
SECTION 1: SAFETY For Your Own Safety Read Instruction Manual Before Operating This Equipment The purpose of safety symbols is to attract your attention to possible hazardous conditions. This manual uses a series of symbols and signal words which are intended to convey the level of importance of the safety messages. The progression of symbols is described below. Remember that safety messages by themselves do not eliminate danger and are not a substitute for proper accident prevention measures.
Safety Instructions For Pneumatic Tools 10. USE PROPER AIR HOSE for the tool. Make sure your air hose is in good condition and is long enough to reach your work without stretching. 11. WEAR PROPER APPAREL. Do not wear loose clothing, gloves, neckties, rings, bracelets, or other jewelry which may get caught in moving parts. Non-slip footwear is recommended. Wear a protective hair covering to contain long hair. 12. ALWAYS USE SAFETY GLASSES. Also use a face or dust mask if cutting operation is dusty.
Additional Safety Instructions for Spray Guns 1. READ THIS MANUAL. This manual contains proper operating instructions for this spray gun. 2. READ MATERIAL LABELS AND MATERIAL SAFETY DATA SHEETS (MSDS). Read and know all the instructions on the packaging label and the MSDS before opening the package. This information could save your life. 3. RESPIRATORY PROTECTION. Always wear a NIOSH approved respirator when spraying or working around finishing materials. 4. FIRE EXTINGUISHERS.
SECTION 2: INTRODUCTION Foreword Contact Information We are proud to offer the Grizzly Model H3256/H3257 Spray Gun. These models are part of a growing Grizzly family of fine pneumatic tools. When used according to the guidelines set forth in this manual, you can expect years of trouble-free, enjoyable operation, and proof of Grizzly’s commitment to customer satisfaction.
TOOL DATA SHEET Customer Service #: (570) 546-9663 • To Order Call: (800) 523-4777 • Fax #: (800) 438-5901 SIPHON FEED SPRAY GUN SET MODEL H3256/H3257 MODEL H3256 H3257 CUP SIZE 100ml 600ml TYPE OF FEED Gravity Gravity FLUID TIP 1.4mm 1.8mm AIR CONSUMPTION 5 CFM 11 CFM INLET AIR 1.5-3.5 BAR 2.0-3.5 BAR PRESSURE FLUID PRESSURE CUP MATERIAL MAX. PATTERN WIDTH BODY MATERIAL 21-50 PSI 28.
SECTION 3: SET UP Inventory Your spray gun left our warehouse in a carefully packed box. If you discover the spray gun is damaged after you have signed for delivery, please immediately call Customer Service at (570) 546-9663 for advice. Model H3257 Inventory (Figure 2) A. Spray Gun . ........................................ 1 B. Cup 600ml.......................................... 1 C. Cleaning Brush .................................. 1 D. Baffle Wrench .................................... 1 E. Filters ....
Assembly 1. Insert the filter into the gun body (see Figure 3). Controls Atomizing Cap Fluid Control Pattern Control Trigger Air Flow Control Figure 3. Installing filter. 2. Screw the cup onto the top of the body. 3. Attach the air hose directly to the air fitting on the spray gun or with a 1⁄4" NPS quick connect fitting (not included). 4. Attach the spray gun to a filtered, regulated air source. See the Tool Data Sheet on Page 8 for your spray gun air requirements.
SECTION 4: OPERATIONS Spraying EXPLOSION HAZARD! DO NOT smoke or have any source of flame or spark near spraying. Vapors will explode if ignited. The Model H3256/H3257 gravity feed spray gun set is designed to spray a wide variety of materials such as lacquers, stains, primers, multi-component paints, clear coats, acrylics, epoxies etc. It is ideal for auto body and woodworking projects. The spray guns are not designed to be used with waterborne materials. To use your spray gun: 1.
7. Adjust the fluid control knob to start with a low volume of material and keep the atomization as low as possible. You will need to use a combination of fluid control, inlet air pressure, air flow control and stroke speed to achieve the results you want. Spray so the material wets out nicely without running or sagging. 8. Use the pattern control knob to adjust the spray fan to your desired pattern. 9.
Pattern Control Atomizing Cap and Fan Adjustments The atomizing cap needs to be adjusted for horizontal or vertical 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 Cleaning on Page 15). Stroke Figure 8. Set up for vertical spray stroke with horizontal fan pattern.
SECTION 5: ACCESSORIES G6261—Campbell Hausfeld™ Water Filter Remove damaging water vapor before it reaches your pneumatic tools. This highly effective, five micron filter features a seethrough bowl and easy in-line connections. 150 PSI maximum air pressure. 1⁄4" NPT. H7274—Campbell Hausfeld™ Pressure Regulator Mini Series. 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 10.
SECTION 6: MAINTENANCE Cleaning Proper cleaning is the best way to ensure trouble free performance from your spray gun. If your gun is not thoroughly cleaned, damage and poor spraying will result. Problems caused by improper cleaning will not be covered by the warranty. Clean the spray gun immediately after each use. 5. Unscrew the atomizing cap with your fingers and the fluid tip with the service wrench. The fully disassembled gun should look like Figure 14. 6.
Lubricate the following areas with a nonsilicon spray gun lubricant after cleaning. Lubrication A. B. C. D. E. F. F A Atomizing Cap Threads Air Valve Packing Trigger Pin Air Flow Control Valve Pattern Control Fluid Control Knob Allow the lubricant to coat threads, and run into gun body to lubricate all moving parts and seals. E B C D Figure 15. Lubrication points.
Troubleshooting Symptom Possible Cause Solution Fluttering or spitting spray. 1. Dry or worn fluid tip seat permits air to seep into fluid passage. 1. Tighten fluid tip or replace seat with new one. 2. Material level too low. 2. Add material. 3. Fluid tip or filter obstructed. 3. Clean 4. Dry needle packing. 4. Lubricate needle. 1. Atomizing cap holes are obstructed. 1. Clear holes. 2. Build-up on top or bottom of fluid tip. 2. Clean. 3. Build-up on atomizing cap is on needle seat. 3.
Symptom Possible Cause Solution Excessive overspray. 1. Fluid pressure too high. 2. Gun is too far from surface. 1. Reduce fluid pressure. 2. Keep gun at recommended distance. 3. Slow down and maintain consistent, even parallel stroke. 3. Spraying too fast. Unable to control spray fan. 1. Pattern adjustment screw is not seating properly. 2. Atomizing cap is loose. 1. Clean or replace. Runs and sags. 1. Damaged seal. 1. Replace damaged seals. Material leaks from cup. 1. Cap not secure. 2.
Notes Model H3256/H3257 Spray Gun -19-
Parts Breakdown H3256 �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� REF PART # � � �� �� �� �� �� �� �� �� � � � � � � � DESCRIPTION REF PART # DESCRIPTION 1 PH3256001 FLUID ADJUSTMENT SCREW 23 PH3256023 TRIGGER 2 PH3256002 FLUID ADJUSTMENT KNOB 24 PH3256024 SNAP RETAINER 3 PH3256003 O-RING 25 PH3256025 SNAP RETAINER 4 PH3256004 WASHER 26 PH3256026 CUP LID 5 PH3256005 AIR VALVE SPRING 27 PH3256027 CUP 6 PH3256006 AIR INLET VALVE 28 PH3256028
Parts Breakdown H3257 �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� � REF PART # � � DESCRIPTION �� � � � � � � �� �� �� REF PART # DESCRIPTION 1 PH3257001 AIR ADJUSTMENT SCREW 25 PH3257025 TRIGGER 2 PH3257002 AIR ADJUSTMENT KNOB 26 PH3257026 SNAP RETAINER 3 PH3257003 O-RING 27 PH3257027 SNAP RETAINER 4 PH3257004 WASHER 28 PH3257028 VENTILATOR HEAD 5 PH3257005 AIR VALVE SPRING 29 PH3257029 CUP LID 6 PH3257006 AIR INLE
WARRANTY AND RETURNS Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original purchaser from the date of purchase. This warranty does not apply to defects due directly or indirectly to misuse, abuse, negligence, accidents, repairs or alterations or lack of maintenance.
WARRANTY CARD Name _________________________________________________________________ Street _________________________________________________________________ City _______________________ State _________________________ Zip _________ Phone # ____________________ Email ________________________ Invoice # _____ Model # ____________________ Order # _______________________ Serial # ______ The following information is given on a voluntary basis.
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