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PROFESSIONAL SPRAY SET
W/ TWO QUART PRESSURE CUP
MODEL H7668
INSTRUCTION MANUAL
COPYRIGHT © JULY, 2005 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.
#PC7424 PRINTED IN CHINA
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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 ................
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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 hazard- ous 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 meas
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Safety Instructions for Pneumatic Tools 10. USE PROPER AIR HOSE for the 17. DISCONNECT TOOLS before ser- tool. Make sure your air hose is in vicing, changing accessories, or good condition and is long enough to moving to another location. reach your work without stretching. 18. DO NOT OVERREACH. Keep proper footing/balance at all times. 11. WEAR PROPER APPAREL. Do not wear loose clothing, gloves, neck- 19. USE THE RECOMMENDED ties, rings, bracelets, or other jew- ACCESSORIES. Consult owner’
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Additional Safety Instructions for Spray Guns 9. INAPPROPRIATE USE. DO NOT 1. READ THIS MANUAL. This manual point or shoot spray gun directly contains proper operating instruc- at yourself or another person or tions for this spray gun. animals. Do not attempt to use the spray gun for any other use than it 2. READ MATERIAL LABELS was intended. and MATERIAL SAFETY DATA SHEETS (MSDS). Read and know 10. STORAGE. Thoroughly clean and all the instructions on the packag- dry spray gun before
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SECTION 2: INTRODUCTION Foreword Contact Info We are proud to offer the Grizzly Model If you have any comments regarding this H7668 Spray Gun. This model is part manual, please write to us at the following of a growing Grizzly family of fine tools. address: When used according to the guidelines set forth in this manual, you can expect years Grizzly Industrial, Inc. of trouble-free, enjoyable operation, and C/O Technical Documentation proof of Grizzly’s commitment to customer P.O. Box 2069 s
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SECTION 3: SET UP Inventory Unpacking After you have unpacked the carton you Your spray gun left our warehouse in a should find the following: carefully packed box. If you discover the spray gun is damaged after you have Model H7668 Inventory (Figure 1) signed for delivery, please immediately A. Pressure Cup . ................................... 1 call Customer Service at (570) 546-9663 B. Spray Gun .......................................... 1 for advice. C. Hook/Handle .................
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3 3. Attach the other end of the ⁄8" fluid 3 hose to the ⁄8" fluid inlet on the spray Assembly gun body (see Figure 4). 1. Attach the hook/handle on the cap with 19mm and 14mm wrenches (see Figure 2). Figure 4. Attaching fluid hose to spray gun. 1 1 4. Attach the ⁄4" air hose to the ⁄4" air outlet on the cap (see Figure 5). Figure 2. Installing hook/handle. 3 3 2. Attach the ⁄8" fluid hose to the ⁄8" Fluid Hose outlet on the cap (see Figure 3). Note: Make sure all hose connections are t
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6. Attach the compressed air line to the Controls air inlet as shown in Figure 7. How- ever, wait until you have mixed your paint material and are ready to spray Pattern Control to complete this step (see Spraying Atomizing Cap on Page 11. 1 Note: Using a ⁄4" NPT quick discon- nect set-up on the inlet air line (not Fluid Control included and not shown), will make Trigger operation and maintenance tasks easier. Note: For the best results, use a filter Figure 8. Controls. that will extr
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SECTION 4: OPERATIONS Spraying The Model H7668 spray system is designed to spray medium to high solid materials, like lacquers, stains, primers, multi-com- ponent paints, acrylics, epoxies etc. It is ideal for auto body, farm and commercial maintenance projects. It is not for use with EXPLOSION HAZARD! DO NOT any waterborne material. smoke or have any source of flame or spark near spraying. Vapors will To use your spray system: explode if ignited. 1. Read and follow the material manufac-
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6. Set the pressure control knob to regu- late the fluid pressure to the gun. Please follow material manufacturer's �� recommendations for this setting. ��� 7. Adjust the atomizing cap to vertical or horizontal. See Atomizing Cap and Fan Adjustments on Page 13 for fur- ther explanation. 8. Trial and error are necessary to achieve Figure 10. Spray technique. the results you want along with a fair 12. Begin spraying 2-3 inches before the amount of practice. Test your material work and co
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Atomizing Cap and Fan Adjustments Stroke 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 Figure 13. Set up for vertical spray stroke caused by clogged atomizing holes on the with horizontal fan pattern. atomizing cap horns (see Cleaning on Page 15). Rotating the pattern adjustment knob in Figure 14 will give you a range between th
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SECTION 5: ACCESSORIES G6261—Campbell Hausfeld™ Water H7274—Campbell Hausfeld™ Pressure Filter Regulator Remove damaging water vapor before it Mini Series. Provides regulated output reaches your pneumatic tools. This highly pressure of 0 to 125 PSI for proper tool effective, five micron filter features a see operation. Locking pressure knob prevents through bowl and easy in-line connections. accidental adjustments. 15 SCFM flow 1 1 150 PSI maximum air pressure. ⁄4" NPT. capacity @ 90 PSI. ⁄
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SECTION 6: MAINTENANCE Cleaning HEALTH & CONTAMINATION Proper cleaning is the best way to ensure HAZARD! Dispose of paint waste trouble free performance from your spray in a responsible manner! Follow system. If your system is not thoroughly manufacturer's recommendations cleaned, damage and poor spraying will and local laws regarding disposal. result. Problems caused by improper clean- Failure to comply will result in con- ing will not be covered by the warranty. tamination and possibly la
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6. Depressurize the system as explained 10. Use the cleaning brush with solvent in Step 1. to clean the inner orifice and other hard to reach areas on the outside of 7. Disassemble the gun by disconnecting the spray gun body and pressure cup the hoses, unscrewing the fluid control cap. knob, and removing the spring and needle. 11. Wipe the rest of the gun body and pressure cup cap with a lint free shop 8. Unscrew the atomizing cap with your towel and dry. fingers and the fluid tip with th
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Lubrication E A D B Figure 23. Control knob lubrication. C Figure 22. Lubrication points. Lubricate the following areas in Figures 22-24 with a non-silicon spray gun lubri- cant lube after each cleaning. F A. Atomizing Cap Threads B. Air Valve Packing C. Trigger Pin D. Fluid Control Knob Figure 24. Pressure control threads. E. Pattern Control Knob F. Pressure Control Knob Allow the lubricant to coat threads, and run into gun body to lubricate all moving parts and seals. Model H7668 Spray
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Troubleshooting Symptom Possible Cause Solution Fluttering or 1. Dry or worn fluid tip seat per- 1. Tighten fluid tip or replace Spitting spray. mits air to seep into fluid pas- seat with new one. sage. 2. Material level too low. 2. Add material. 3. Fluid tip or strainer obstructed. 3. Clean 4. Dry needle packing. 4. Lubricate needle. Uneven top or bot- 1. Atomizing cap holes are 1. Clear holes. tom pattern. obstructed. 2. Build-up on top or bottom of 2. Clean. fluid tip. 3. Build-up on atomizi
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Symptom Possible Cause Solution Excessive over- 1. Fluid pressure too high. 1. Reduce fluid pressure. spray. 2. Gun is too far from surface. 2. Keep gun at recommended distance. 3. Spraying too fast. 3. Slow down and maintain consistent, even parallel stroke. Unable to control 1. Pattern adjustment screw is 1. Clean or replace. spray fan. not seating properly. 2. Atomizing cap is loose. 2. Tighten atomizing cap. Runs and sags. 1. Damaged seal. 1. Replace damaged seals. Material leaks from 1.
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Parts Breakdown �� �� �� �� �� � �� � �� � �� � �� � �� � � � � �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� -20- Model H7668 Spray Gun w/Pressure Cup
