Professional HVLP spray gun w/Gauge MODEL H7669 INSTRUCTION MANUAL Copyright © July, 2005 By Grizzly Industrial, Inc., REVISED NOVEMBER, 2009 (TS) 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 Additional Safety Instructions for HVLP Spray Guns..................................................6 SECTION 2: INTRODUCTION..........................................................................................7 Foreword......................................................................................................................7 Tool Data................
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 HVLP 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. ALWAYS WEAR A NIOSH APPROVED RESPIRATOR WHEN SPRAYING OR WORKING AROUND FINISHING MATERIALS. 4. FIRE EXTINGUISHERS.
SECTION 2: INTRODUCTION Foreword Contact Info We are proud to offer the Grizzly Model H7669 HVLP 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 H7669 Inventory (Figure 1) A.
Assembly 1. Insert the filter into the gun body (see Figure 2). Controls Atomizing Cap Cup Fluid Control Trigger Pattern Control Air Flow Control Regulator/Gauge Figure 3. Controls. Figure 2. Installing filter. 2. Screw the cup onto the top of the body. 3. Attach the air hose to the spray gun with a 1⁄4" NPS quick connect set-up (not included). Note: You have the option of attaching the regulator/guage directly to the gun as shown in the photos.
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 H7669 HVLP spray gun is designed to spray medium to high solid materials like lacquers, stains, primers, multi-component paints, clear coats, acrylics, epoxies etc. It is ideal for auto body and, woodworking projects and can 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.
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 13). Stroke Pattern Control Figure 7. Set up for vertical spray stroke with horizontal fan pattern.
SECTION 5: 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. To clean your spray gun: 1. Spray a small amount of solvent through the spray gun. Note: Check with local laws regarding this practice.
Lubrication A F B E C D Figure 10. Lubrication points. Lubricate the following areas with spray gun lube 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 After each cleaning apply a thin film of petroleum jelly to the needle spring before reassembling.
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 cup. 1. Cap not secure. 2.
Parts Breakdown 23 24 25 26 27 28 29 50 30 31 13 14 15 16 17 18 19 20 21 22 12 11 10 33 34 35 36 37 38 45 44 43 42 41 40 39 46 47 48 49 6 9 8 7 5 4 3 2 1 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 AIR ADJUSTMENT SCREW AIR ADJUSTMENT KNOB O-RING SPECIAL WASHER AIR VALVE SPRING AIR INLET VALVE SWITCH SPRING AIR VALVE BODY SWITCH KNOB O-RING SPECIAL WASHER DIRECTION SCREW PIN SPRING CAP NUT FLUID CAP WASHER ATOMIZATION CAP FLUID
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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