HVLP spray gun Set MODEL H7671/H7672 INSTRUCTION MANUAL H7671 H7672 Copyright © July, 2005 By Grizzly Industrial, Inc. REVISED APRIL, 2011 (TR) Warning: No portion of this manual may be reproduced in any shape or form without the written approval of Grizzly Industrial, inc.
This manual provides critical safety instructions on the proper setup, operation, maintenance, and service of this machine/tool. Save this document, refer to it often, and use it to instruct other operators. Failure to read, understand and follow the instructions in this manual may result in fire or serious personal injury—including amputation, electrocution, or death. The owner of this machine/tool is solely responsible for its safe use.
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. 17. DISCONNECT TOOLS before servicing and changing accessories. 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. 19.
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. 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 H7671/H7672 HVLP Spray Gun Set. These models are 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. We stand behind our machines.
TOOL DATA SHEET Customer Service #: (570) 546-9663 • To Order Call: (800) 523-4777 • Fax #: (800) 438-5901 HVLP SPRAY GUN SET MODEL H7671/H7672 MODEL H7671 H7672 CUP SIZE 100ml 600ml 100ml 600ml TYPE OF FEED GRAVITY GRAVITY GRAVITY GRAVITY FLUID TIP 0.8MM 1.4MM 0.8mm 1.4mm AIR CONSUMPTION 5 CFM 11 CFM 5 CFM 11 CFM INLET AIR 1.5-3.5 BAR 2.0-3.5 BAR 1.5-3.5 BAR 2.0-3.5 BAR PRESSURE FLUID PRESSURE CUP MATERIAL MAX.
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. Save the containers and all packing materials for possible inspection by the carrier or its agent. Otherwise, filing a freight claim can be difficult. Model H7672 Inventory (Figure 2) A. Large Spray Gun ............................... 1 B. Cup 600ml........................
Assembly 1. Insert the filter into the gun body (see Figure 3). Controls Atomizing Cap Fluid Control Pattern Control Regulator Control Trigger Air Flow Control Figure 4. Controls. Figure 3. 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 fitting (not included). 4. Attach the spray gun to an air hose regulated between 29 and 50 PSI. Note: For the best results, use a hose that will be dedicated for spray use only.
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 H7671/H7672 HVLP spray gun set is designed to spray a wide variety of materials like lacquers, stains, primers, multi-component paints, clear coats, acrylics, epoxies etc. It is ideal for auto body and woodworking projects. 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. H7674—Spray Gun Filters – 20 Pack Prevent solids and impurities from clogging your spray tip or ruining your finish. Designed for even paint flow, these fine mesh filters fit between the hopper and the spray gun atomizer and have 0.
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. 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 E F B C D Figure 15. Lubrication points. Lubricate the following areas with a nonsilicon spray 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 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 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.
Parts Breakdown H7671/H7672 Parts breakdown provided for reference only. Not all parts shown are available for purchase.
Parts List H7671/H7672 REF PART # DESCRIPTION REF PART # DESCRIPTION 1 PH7671001 FLUID ADJUSTMENT SCREW 49 PH7671049 SPECIAL WASHER 2 PH7671002 FLUID ADJUSTMENT KNOB 50 PH7671050 AIR VALVE SPRING 3 PH7671003 O-RING 51 PH7671051 AIR INLET VALVE 4 PH7671004 SPECIAL WASHER 52 PH7671052 SWITCH SPRING 5 PH7671005 AIR VALVE SPRING 53 PH7671053 AIR VALVE BODY 6 PH7671006 AIR INLET VALVE 54 PH7671054 SWITCH KNOB 7 PH7671007 SWITCH SPRING 55 PH7671055 O-RING 8 PH7671008
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.
