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.
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. 4. ALWAYS WEAR A NIOSH APPROVED RESPIRATOR WHEN SPRAYING OR WORKING AROUND FINISHING MATERIALS. FIRE EXTINGUISHERS.
SECTION 2: INTRODUCTION Foreword Contact Info We are proud to offer the Grizzly Model H7668 Spray Gun. This model is part of a growing Grizzly family of fine 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.
SECTION 3: SET UP Inventory Unpacking 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. Save the containers and all packing materials for possible inspection by the carrier or its agent. Otherwise, filing a freight claim can be difficult. After you have unpacked the carton you should find the following: Model H7668 Inventory (Figure 1) A.
Assembly 1. 3. Attach the other end of the 3 ⁄ 8" fluid hose to the 3 ⁄ 8" fluid inlet on the spray gun body (see Figure 4). Attach the hook/handle on the cap with 19mm and 14mm wrenches (see Figure 2). Figure 4. Attaching fluid hose to spray gun. 4. Figure 2. Installing hook/handle. 2. Attach the 3 ⁄ 8" fluid hose to the 3 ⁄ 8" outlet on the cap (see Figure 3). Attach the 1⁄4" air hose to the 1⁄4" air outlet on the cap (see Figure 5).
6. Controls Attach the compressed air line to the air inlet as shown in Figure 7. However, wait until you have mixed your paint material and are ready to spray to complete this step (see Spraying on Page 11. Atomizing Cap Note: Using a 1⁄4" NPT quick disconnect set-up on the inlet air line (not included and not shown), will make operation and maintenance tasks easier.
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 H7668 spray system is designed to spray medium to high solid materials, like lacquers, stains, primers, multi-component paints, acrylics, epoxies etc. It is ideal for auto body, farm and commercial maintenance projects. It is not for use with any waterborne material. To use your spray system: 1.
6. Set the pressure control knob to regulate 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 further explanation. 8. Trial and error are necessary to achieve the results you want along with a fair amount of practice. Test your material flow and spray pattern on a piece of cardboard or some scrap of material similar to your project. 9.
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 caused by clogged atomizing holes on the atomizing cap horns (see Cleaning on Page 15). Figure 13. 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 see through 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.
SECTION 6: MAINTENANCE Cleaning Proper cleaning is the best way to ensure trouble free performance from your spray system. If your system 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, hose and pressure cup immediately after each use. To clean your spray system: 1.
6. Depressurize the system as explained in Step 1. 7. Disassemble the gun by disconnecting the hoses, unscrewing the fluid control knob, and removing the spring and needle. 8. Unscrew the atomizing cap with your fingers and the fluid tip with the service wrench. The fully disassembled gun should look like Figure 21. Fluid Tip Needle Atomizing Cap Spring Fluid Control Knob Figure 21. Disassembly for cleaning. 9. Rinse these parts thoroughly in solvent then dry with compressed air or let air dry. 10.
Lubrication E A D B C Figure 23. Control knob lubrication. Figure 22. Lubrication points. Lubricate the following areas in Figures 22-24 with a non-silicon spray gun lubricant lube after each cleaning. A. B. C. D. E. F. Atomizing Cap Threads Air Valve Packing Trigger Pin Fluid Control Knob Pattern Control Knob Pressure Control Knob F Figure 24. Pressure control threads. Allow the lubricant to coat threads, and run into gun body to lubricate all moving parts and seals.
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 strainer 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 pressure cup. 1. Cap not secure.
Parts Breakdown �� �� �� � � � � � � � � � �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� -20- Model H7668 Spray Gun w/Pressure Cup
Parts Breakdown REF PART # DESCRIPTION REF PART # DESCRIPTION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 POT BOTTOM CUP FLUID TUBE COVER RUBBER SPECIAL WASHER LATEX JAM COMPRESSION SPRING SPRING RELIEF VALVE PAINT INLET PLUG CENTERPOST FLUID OUTLET SPECIAL NUT NUT HANDLE REGULATOR ASSEMBLY SCREW CHECK VALVE COMPRESSION SPRING SPECIAL WASHER COMBO HOSE AIR INLET PLUG BLOCK GUN BODY DIRECTION PIPE FLUID ADJ.
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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