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MODEL H7949/H7950/H7951
INSTRUCTION MANUAL
1
H7949 2 /2"
COIL NAILER
3
H7951
H7950 2 /4"
ROOFING NAILER
COIL NAILER
COPYRIGHT © DECEMBER, 2006 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.
#JC8623 PRINTED IN TAIWAN
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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 measures. Indic
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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 11. WEAR PROPER APPAREL. Do not proper footing and balance at all wear loose clothing, gloves, neck- times. ties, rings, bracelets, or other jew- elry which may get caught in moving 19. USE THE
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Additional Safety Instructions for Nailers 1. HAND INJURIES: Do not place 5. COMPRESSED AIR RATING: Do your hands near the nail point not connect the nailer to compressed of entry. A nail can deflect and air that exceeds 120 PSI. tear through the surface of the workpiece, puncturing your hand 6. CHECK VALVE: Do not use a check or fingers. valve or any other fitting that allows air to remain in the tool. 2. COMBUSTIBLE GASES: Never connect the nailer to pressur- 7. CLEANING: Never use
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Never point this nailer at yourself or another person! Always pay attention to the direction this nailer is pointed. Use this tool with respect and caution to lessen the possibility of operator or bystander injury. Ignoring this warning may result in serious personal injury. Operating this nailer can propel objects into the air, causing imme- Nailer accidents routinely happen diate eye damage. To protect your- while moving the gun to another loca- tion, such as up ladders, to another se
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INTRODUCTION Foreword Model H7951 Specifications We are proud to offer the Grizzly Model H7949/H7950/H7951 Nailer. This nailer Nail Type ..................Flat Wire Welded Coil is part of a growing Grizzly family of fine 3 3 Nail Length .................................... /4"–1 /4" pneumatic tools. When used according Magazine Capacity .............. 250–400 Nails to the guidelines in this manual, you can Weight .............................................5.5 lbs. expect years of troubl
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SETUP Unpacking Inventory Your Model H7949/H7950/H7951 left our After you open the nailer box, you should warehouse in a carefully packed box. If find the following. you discover the nailer is damaged after you have signed for delivery, please imme- Model H7949/H7950/H7951 Inventory diately call Customer Service at (570) 546- (Figure 1) 9663 for advice. A. Nailer .................................................. 1 B. Nailer Case ........................................ 1 Save the contai
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Check the current Grizzly catalog for avail- Compressed Air ability of this unit. If you plan on install- System ing a filter/lubricator/regulator unit in your compressed air system, always follow the connection instructions that come with the unit. The Model H7949/H7950/H7951 is designed to be operated at 70–110 PSI using clean, dry, regulated, compressed air. DO NOT exceed 120 PSI. Exceeding the maximum permissible Before using your new nailer, set the air operating pressure may damag
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5. Without pressing the trigger, depress Testing Safety Nose the safety nose mechanism against a Mechanism scrap piece of wood that is clean and free of any knots, nails, or other foreign objects. A safety mechanism (bump fire) on the — If the nailer does not fire, then the nose of the nailer protects against acci- safety nose mechanism is working dental firing. This mechanism is activated correctly. when nails are loaded into the magazine. The nailer will not fire when the trigger
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OPERATIONS 3. Press the adjusting pin inside the magazine and slide the plate up or Model H7949/H7950 down until the plate position matches Loading Nails the nail length as shown in Figure 4. Note: The plate must be set at the proper height or the nails will not feed Use nails meeting the specifications listed smoothly into firing position. for your nailer on Page 4 of this manual. To load nails in your nailer: Nail Length Marks 1. DISCONNECT NAILER FROM THE AIR SUPPLY! Magazine Adju
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5. Put the first nail into the driving hole and the second nail between the two pawls of the feeder as shown in Figure 6. Magazine Feeder Cover Lock Pawls Figure 7. Unlatching the magazine cover lock: Model H7951. 3. Press the adjusting pin inside the mag- azine and slide the plate up or down until the plate position matches the nail Figure 6. Putting the nails in firing position. length (Figure 8). 6. Close and latch the magazine cover. Nail Length Marks Model H7951 Loading Nails Maga
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Rotating Exhaust Unloading Nails Cover To remove unused nails: The exhaust cover rotates as needed to 1. DISCONNECT NAILER FROM THE direct the exhaust away from you. AIR SUPPLY! To rotate the exhaust cover: 2. Point the nailer away from you and all bystanders. 1. Use the 4mm hex wrench to loosen the exhaust cover cap screw as shown in 3. Open the magazine cover (as shown Figure 10. on Page 8) and lift the nails from maga- zine. 4. Close the magazine cover to keep the magazine assemb
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4. Before pulling the trigger, make sure Using the Nailer your free hand and other body parts are positioned out of the way of a potential path of a nail in case of deflection (illustrated below in Figure 11). Read the manual before operation. Become familiar with these nailers, Figure 11. Example of nail deflection. their safety instructions, and opera- Note: Deflection is caused when tion before beginning any work. Serious personal injury may result if grain irregularities, knots or
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Adjusting Depth Clearing Jammed Nails To adjust the nail depth: A jammed nail must be cleared before the Adjusting the depth of nail penetration is nailer is used again. done by turning the adjustment knob locat- ed near the trigger as shown in Figure 12. To clear a jammed nail from the dis- charge area: Depth Adjustment 1. DISCONNECT NAILER FROM THE Knob AIR SUPPLY! 2. Remove all nails from the magazine. 3. Use a steel rod and hammer to tap the jammed nail back into the magazine drivin
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4. Push the top of the piston down with Replacing your finger as far as it will go; this will Pistons/O-Rings push the piston driver into the nose of the nailer. 5. Insert a stiff rod or wire of the same If you need to replace piston parts in your diameter as your nails into the dis- nailer, you can purchase a piston repair kit charge area of the nose and use it from Grizzly: call 1-800-523-4777. to push the piston driver up until the piston head clears the top of the cyl- The Pisto
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CLEANING & LUBRICATING Cleaning Lubricating Special pneumatic tool oil has been Use an automotive grade solvent such as ® included with your new Grizzly nailer to Sprayway C-60 (G2544 in the Grizzly help maintain its useful life. Place two to catalog) to clean the nose assembly of the six drops of oil in the nailer air inlet (as nailer. Always be sure that the nailer is dry shown in Figure 15) every 2 hours of before using it again. continuous use. Do not allow dust, chips, or sand i
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H7949 PARTS BREAKDOWN �� � �� � �� � �� �� �� � �� �� �� � �� �� �� � �� �� �� �� �� �� �� �� �� � �� �� �� �� �� � �� �� �� �� �� � �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� ������������������������������������������������������������������������������� ��������������������������������������������������������������� � H7949/H7950/H7951 Nailer -15
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H7949 PARTS LIST PAGE 1 OF 2 REF PART # DESCRIPTION REF PART # DESCRIPTION 1 PFH55M FLAT HD CAP SCR M6-1 X 20 40 PH7949040 STEPPED PIN 2 PH7949002 FRONT BRACKET 41 PH7949041 O-RING 3 PH7949003 EXHAUST COVER 42 PH7949042 FEED PISTON 4 PH7949004 EXHAUST FILTER 43 PH7949043 O-RING 5 PH7949005 EXHAUST FILTER PLATE 44 PH7949044 SPRING 6 PSB38M CAP SCREW M5-.8 X 25 45 PH7949045 SPRING 7 PH7949007 CAP 46 PH7949046 FEED PISTON STOP 8 PH7949008 SPRING 47 PH7949047 SPRING COLLAR 9 PH7949009 WASHER 48 PH7
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H7949 PARTS LIST PAGE 2 OF 2 REF PART # DESCRIPTION REF PART # DESCRIPTION 79 PH7949079 PILOT VALVE 92 PH7949092 CONTACT TRIP BLOCK 80 PH7949080 O-RING 93 PH7949093 ADJUSTING BOLT 81 PH7949081 BALL PIN 94 PH7949094 COVER 82 PH7949082 TRIGGER VALVE HOUSING 95 PH7949095 O-RING 83 PH7949083 O-RING 96 PH7949096 RUBBER GRIP 84 PH7949084 O-RING 97 PH7949097 ADJUSTING NUT 85 PH7949085 TRIGGER PLATE 98 PH7949098 NAILER CASE 86 PH7949086 TRIGGER 100 PH7949100 INCLUDED PNEUMATIC OIL 87 PRP98M ROLL PIN 3
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H7950 PARTS BREAKDOWN �� � �� � �� � �� �� �� � �� �� � �� �� �� �� �� � �� �� �� �� �� �� �� �� �� � �� �� �� � �� �� �� �� �� � �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� ��� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� ������������������������������������������������������������������������������� ��������������������������������������������������������������� �������� ��������������������������
