PROFESSIONAL LVLP SPRAY GUN MODEL H7666/H7667 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 LVLP 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 LVLP 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 H7666/H7667 LVLP Spray Gun. This spray gun 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.
TOOL DATA SHEET Customer Service #: (570) 546-9663 • To Order Call: (800) 523-4777 • Fax #: (800) 438-5901 PROFESSIONAL LVLP SPRAY GUNS MODEL H7666/H7667 -8- MODEL H7666 H7667 TYPE OF FEED GRAVITY GRAVITY FLUID TIP 1.3mm 1.5mm AIR CONSUMPTION 3-3.9 CFM 3-3.9 CFM INLET AIR PRESSURE 2.0-3.5 BAR 28.8-51 PSI 2.0-3.5 BAR 28.8-51 PSI FLUID PRESSURE LESS THAN 10 PSI LESS THAN 10 PSI MATERIAL CAPACITY 600ml 600ml MAX. PATTERN WIDTH 230mm 230mm WEIGHT 0.585 kgs. 1.28 lbs. 0.618 kgs. 1.
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.
Assembly 1. Insert the filter into the gun body (see Figure 3). Controls Atomizing Cap Cup Pattern Control Trigger Fluid Control Air Flow Control Figure 4. Controls. Figure 3. Installing filter. 2. 3. 4. Screw the cup onto the top of the body. Attach the air hose to the spray gun with a 1⁄4" NPS quick connect set-up (not included). Fluid Control: Controls the volume of material that travels through the fluid tip. 2. Pattern Control: Adjusts the spray pattern from a round pattern to a wide fan.
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 H7666/H7667 LVLP 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 (on the Model H7667), 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). Holes 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.
Lubrication A E F B C D Figure 15. Lubrication points. Lubricate the following areas with a nonsilicon spray gun lubricant after cleaning. A. B. C. D. E. F. 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.
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 H7666/H7667 LVLP Spray Gun -19-
Parts Breakdown H7666 �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� � � � �� �� �� �� �� �� �� �� �� �� � � � � � � �� �� 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 VALVE COVER O-RING SWITCH SPRING SWITCH POLE SEAL WASHER O-RING FLUID KNOB NEEDLE SLEEVE SLEEVE WASHER NEEDLE SPRING NEEDLE SET AIR ADJ. SCREW AIR ADJ.
Parts Breakdown H7667 �� �� �� �� �� �� �� �� �� �� �� � � � � � � �� �� �� � �� �� �� �� � � � � � � �� �� �� �� ���� �� �� �� �� �� �� �� �� �� � � 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 ADJ. SCREW ADJ. KNOB O-RING SPECIAL WASHER AIR VALVE SPRING SPECIAL WASHER INLET VALVE AIR INLET GUN BODY SPECIAL WASHER O-RING O-RING NEEDLE KNOB NEEDLE SCREW NEEDLE SPRING NEEDLE 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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