1.KEEP ALL SAFETY DEVICES IN PLACE and in working order.

2.REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of check- ing to see that keys and adjusting wrenches are removed from tool before operation.

3.KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents.

4.DO NOT USE IN DANGEROUS ENVIRONMENT. Do not use pneu- matic tools in damp or wet loca- tions, or where any flammable or noxious fumes may exist. Keep work area well lighted.

5.KEEP CHILDREN AND VISITORS AWAY. All children and visitors should be kept at a safe distance from work area.

6.MAKE WORKSHOP CHILD PROOF by locking your shop and shutting off air valves.

7.DO NOT FORCE TOOL. It will do the job better and safer at the rate for which it was designed.

8.USE THE RIGHT TOOL. Do not force tool or attachment to do a job for which it was not designed.

9.DO NOT USE UNDER THE

INFLUENCE OF DRUGS OR

ALCOHOL.

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, neck- ties, rings, bracelets, or other jew- elry which may get caught in moving parts. Non-slip footwear is recom- mended. Wear a protective hair cov- ering to contain long hair.

12.ALWAYS USE ANSI APPROVED SAFETY GLASSES. Also use a face or dust mask if cutting operation is dusty. Everyday eyeglasses only have impact resistant lenses, they are NOT safety glasses.

13.ALWAYS WEAR ANSI APPROVED

HEARING PROTECTION.

14.SECURE WORK. Use clamps or a vise to hold work when practical. It is safer than using your hand and frees both hands to operate tool.

15.MAINTAIN TOOLS WITH CARE.

Keep tools lubricated and clean for best and safest performance. Follow instructions for lubricating and changing accessories.

16.REDUCE THE RISK OF UNINTENTIONAL STARTING. Do not carry tool with hand on trig- ger and always disconnect from air when not in use.

17.DISCONNECT TOOLS before ser- vicing, changing accessories, or moving to another location.

18.DO NOT OVERREACH. Keep proper footing and balance at all times.

19.USE THE RECOMMENDED ACCESSORIES. Consult owner???s manual for recommended acces- sories. The use of improper acces- sories may cause risk of injury.

20.CHECK FOR DAMAGED PARTS BEFORE USING. Check for bind- ing and alignment of parts, broken parts, part mounting, loose bolts, and any other conditions that may affect machine operation. Repair or replace damaged parts.

21.NEVER LEAVE UNATTENDED

TOOL CONNECTED TO AIR.

Disconnect the air hose and do not leave tool until it is relieved of any built up pressure.

22.NEVER ALLOW UNTRAINED

USERS TO USE THIS TOOL

WHILE UNSUPERVISED.

23.IF YOU ARE UNSURE OF THE

INTENDED OPERATION, STOP USING THE TOOL. Seek formal training or research books or maga- zines that specialize in pneumatic tools.

1.HAND INJURIES: Do not place your hands near the staple point of entry. A staple can deflect and tear through the surface of the workpiece, puncturing your hand or fingers.

2.COMBUSTIBLE GASES: Never connect the stapler to pressur- ized oxygen or other combustible gases as a power source. Only use filtered, lubricated, and regu- lated compressed air.

3.SAFE HANDLING: Never point the stapler at others! Do not keep the trigger pulled when loading fasteners, carrying, or holding tool. Carry the stapler only by the handle, never by any other part. Do not carry the stapler by the air hose. Disconnect the stapler from the air hose when going up and down ladders.

4.AIR HOSE: Make sure your air hose is designed for the tool in use, is in good condition, and is long enough to reach your work without stretching. However, an overly long air hose in the work area may be a tripping hazard.

5.COMPRESSED AIR RATING: Do not connect the stapler to com- pressed air that exceeds 120 PSI.

6.CHECK VALVE: Do not use a check valve or any other fitting that allows air to remain in the tool.

7.CLEANING: Never use gasoline or other flammable liquids to clean the stapler; vapors in the stapler may ignite by a spark and cause the sta- pler to explode.

8.OPERATING QUESTIONS: If you are not sure about the intended operation, stop using the stapler. Seek formal training or research sources that specialize in pneumatic tools.

9.MAINTENANCE: Always disconnect air from the stapler when servicing or installing staples. During adjustments or maintenance, a stapler connected to air may fire accidentally, causing serious personal injury.

Operating this stapler can propel objects into the air, causing imme- diate eye damage. To protect your- self, always wear American National Standards Institute (ANSI) approved safety glasses or goggles when oper- ating this equipment. In addition, the intensity of sound made by this sta- pler at discharge can reach 90 deci- bels. To protect your hearing, always wear ANSI approved ear protection when operating this stapler.

Read the manual before operation. Become familiar with these staplers, their safety instructions, and opera- tion before beginning any work. Serious personal injury may result if safety or operational information is not understood or followed.

Never point this stapler at yourself or another person! Always pay attention to the direction this stapler 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.

Stapler accidents routinely happen while moving the gun to another loca- tion, such as up ladders, to another room, or even another job site. Always disconnect the gun immediately after use and never transport the gun while connected to the air???even if the air compressor is disconnected from its power source!

No list of safety guidelines can be complete. Every shop environment is different. Always consider safety first, as it applies to your individual working conditions. Use this and other tools with caution and respect. Failure to do so could result in serious personal injury, damage to equipment or poor work results.

We are proud to offer the Grizzly Model H7947/H7948 16 Gauge Stapler. This sta- pler is part of a growing Grizzly family of fine pneumatic tools. When used accord- ing to the guidelines in this manual, you can expect years of trouble-free, enjoy- able operation and proof of Grizzly???s com- mitment to customer satisfaction.

The specifications and photographs in this manual represent Model H7947/H7948 as supplied when this manual was prepared. However, owing to Grizzly???s policy of con- tinuous improvement, changes may be made at any time with no obligation on the part of Grizzly.

Model H7947

Specifications

Contact Info

If you have any comments regarding this manual, please write to us at the following address:

Grizzly Industrial, Inc.

C/O Technical Documentation Manager

P.O. Box 2069

Bellingham, WA 98227-2069

Email: manuals@grizzly.com

Most importantly, we stand behind our tools. If you have any service questions or parts requests, please call or write us at the location listed below.

Grizzly Industrial, Inc.

1203 Lycoming Mall Circle

Muncy, PA 17756

Phone: (570) 546-9663

Fax: (800) 438-5901

E-Mail: techsupport@grizzly.com

Web Site: http://www.grizzly.com

Your Model H7947/H7948 left our ware- house in a carefully packed box. If you discover the stapler is damaged after you have signed for delivery, please immedi- ately call Customer Service at (570) 546- 9663 for advice.

Save the containers and all packing mate- rials for possible inspection by the car- rier or its agent. Otherwise, filing a freight claim can be difficult.

When you are completely satisfied with the condition of the shipment, you should inventory the equipment.

After you open the stapler box, you should find the following.

E

C

Compressed Air

System

The Model H7947/H7948 is designed to be operated at 70???110 PSI using clean, dry, regulated, compressed air. DO NOT exceed 120 PSI.

An in-line filter/lubricator/regulator unit, depicted in Figure 2, can be installed and should be located as close to the stapler as possible.

This filter/lubricator/regulator unit will pro- tect your tool from damaging water build- up, allow you to adjust and maintain con- stant air pressure to your tool, and save you the inconvenience of manually lubri- cating your tool every time you use it.

Check the current Grizzly catalog for avail- ability of this unit. If you plan on install- ing a filter/lubricator/regulator unit in your compressed air system, always follow the connection instructions that come with the unit.

Exceeding the maximum permissible operating pressure may damage the seals, gaskets and hammer mecha- nism of your stapler. DO NOT allow your air compressor to exceed the recommended pressure when con- nected to this stapler or serious per- sonal injury may result!

Testing Safety Nose

Mechanism

A safety mechanism (bump fire) on the nose of the stapler protects against acci- dental firing. This mechanism is activated when staples are loaded into the maga- zine. The stapler will not fire when the trigger is pulled until the safety nose is fully depressed.

Before you use your stapler for the first time, check the safety nose mechanism to ensure proper function.

The safety mechanism is a mechanical device that can fail. Never rely on this mechanism as an excuse to point the stapler at yourself or any bystanders, otherwise, serious injury may occur.

To verify that the safety nose is working correctly:

1.DISCONNECT STAPLER FROM THE

AIR SUPPLY!

2. Insert a strip of staples in the magazine (see Page 8 for instructions).

3.Make sure the trigger and the safety nose mechanism move up and down without sticking.

4.Connect the stapler to the air supply.

5.Without pressing the trigger, depress the safety nose mechanism against a scrap piece of wood that is clean and free of any knots, staples, or other for- eign objects.

???If the stapler does not fire, then the safety nose mechanism is working correctly.

???If the stapler does fire when you depress the safety nose, immedi- ately disconnect the stapler from the air supply and call Grizzly Technical Support at (570) 546-9663 for help.

6.Without depressing the safety nose, point the stapler in a safe direction, and pull the trigger.

???If the stapler does not fire, then the safety nose mechanism is working correctly.

???If the stapler does fire when the trigger is pulled, without the safety nose mechanism being depressed, immediately disconnect the stapler from the air supply and call Grizzly

Technical Support at (570) 546- 9663 for help.

Point the stapler away from you and others when connecting the air supply. The stapler can cycle and discharge a staple when the air supply is connect- ed. Ignoring this warning may result in serious personal injury.

2.Slide the magazine pusher to the rear of the magazine and pivot the pusher down until it catches in the lock notch on the magazine as shown in Figure 3.

Figure 3. Locking the pusher.

Figure 4. Loading a staple strip into the magazine.

4.Lift the pusher out of the lock notch and guide it forward to push the staple strip to the nose of the stapler.

Unloading Staples

To remove unused staples:

1.DISCONNECT STAPLER FROM THE

AIR SUPPLY!

2.Point the stapler away from you and all bystanders.

3.Slide the pusher to the rear of the mag- azine and latch it into the lock notch.

4.Move the staples back from the nose and lift them up and out of the maga- zine.

4.Before pulling the trigger, make sure your free hand and other body parts are positioned out of the way of a potential path of a staple in case of deflection (illustrated below in Figure 6).

Figure 6. Example of staple deflection.

Note: Deflection is caused when grain irregularities, knots or foreign objects inside the wood cause the staple to change its path, resulting in the staple puncturing the surface of the workpiece.

Besides damaging your workpiece, deflection can cause injury if your free hand is securing the workpiece in the location that the staple deflects.

5.Pull the trigger.

???If the staple penetrates the wood to the depth you want, continue with your intended operations.

???If the staple either went too far or not far enough, adjust the depth of fire by following the procedures listed on

Pages 10-11.

-10-

Adjusting Depth

Changing the depth of staple penetration is done by changing the position of the adjust- ing block on the contact arm.

To adjust the depth:

1.DISCONNECT STAPLER FROM THE

AIR SUPPLY.

2.Use a 4mm hex wrench to loosen the depth adjustment cap screw on the contact arm as shown in Figure 7.

Depth

Adjustment

Cap Screw

Figure 7. Depth adjustment cap screw.

3.Move the adjusting block (Figure 8) up or down to increase or decrease staple penetration.

???If you want to decrease the staple depth, then move the adjusting block down, away from the nose as shown in Figure 8.

Adjusting Block

Figure 8. Adjusting block down.

H7947/H7948 16 Gauge Stapler

???If you want to increase the staple depth, then move the adjust-

ing block up, toward the nose as shown in Figure 9.

Adjusting Block

Up

Figure 9. Moving the adjustment block up.

4.Tighten the depth adjustment cap screw.

5.Connect the stapler to the air supply, test the staple depth, and repeat this entire procedure if necessary until the staple depth is satisfactory.

Clearing Jammed

Staples

A jammed staple must be cleared before the stapler is used again.

To clear a jammed staple from the dis- charge area:

1.DISCONNECT STAPLER FROM THE

AIR SUPPLY!

2.Unlatch the nose cover as shown in

Figure 10.

Nose Cover Latch

Figure 10. Unlatching the nose cover.

3.Open the nose cover as shown in

Figure 11.

Nose Cover

Figure 11. Opening the nose cover.

4.Grab the jammed staple with a pair of pliers and remove it from the nose as shown in Figure 12.

Figure 12. Removing a jammed staple.

5. Close and latch the nose cover.

Replacing

Pistons/O-Rings

If you need to replace piston parts in your stapler, you can purchase a piston repair kit from Grizzly: call 1-800-523-4777.

The Piston Repair Kit part number for Model H7947 is PH7947081; the Piston Repair Kit part number for Model H7948 is PH7948081.

Refer to the parts breakdown during this procedure to identify parts and their loca- tions inside the stapler.

Always disconnect the air supply from the stapler whenever servicing! During maintenance, a stapler con- nected to air may fire accidentally, causing serious personal injury!

To replace a piston and O-ring(s):

1.DISCONNECT STAPLER FROM THE

AIR SUPPLY!

2.Remove all staples from the maga- zine.

3.Remove the four screws that secure the stapler cap and remove the cylinder cap.

4.Push the top of the piston down with your finger as far as it will go; this will push the piston driver into the nose of the stapler.

5.Open the nose cover of the stapler to reveal the piston driver.

6.Use a narrow, flathead screwdriver to push the piston driver up until the pis- ton head clears the top of the cylinder. (Be careful not to scratch the discharge area, the driver set plate or the piston cylinder.)

7.Grip the piston head by hand and remove the piston assembly from the cylinder.

8.Clean all metal parts with an automotive grade solvent. Clear all ports and blow the solvent away with compressed air.

9.Replace any part that shows damage or heavy wear. Relubricate the tool.

10.Apply a thin film of the stapler lubricat- ing oil on the new O-ring and place it on the new piston. Install any other parts included in the piston repair kit.

11.Insert the new piston in the cylinder. With the magazine cover open, gently push the piston down to make sure the piston driver moves freely into the driv- ing hole.

Note: DO NOT force the piston into the cylinder! If the piston 'hangs' in the cylinder, double check the fit between piston and O-ring and make sure the cylinder is clean.

12.Make sure that the cap gasket is in place, then secure the cap to the sta- pler body by tightening the four cap screws.

Use an automotive grade solvent such as Sprayway C-60?? (G2544 in the Grizzly catalog) to clean the nose assembly of the stapler. Always be sure that the stapler is dry before using it again.

Do not allow dust, chips, or sand into the air connectors or into the body of the sta- pler; this may result in leaks and damage to the stapler and the air couplings.

Never use gasoline to clean this tool. Use extreme caution when using any solvent cleaner. Always clean the tool in a well-ventilated area and never if sparks or open flames are present. Remember that electrical machinery in the area can produce sparks during normal operation. Ignoring this warn- ing can cause serious personal injury or even death!

Special pneumatic tool oil has been included with your new Grizzly stapler to help maintain its useful life. Place two to six drops of oil in the stapler air inlet (as shown in Figure 13) every two hours of continuous use.

Wipe off any excess oil near the stapler exhaust to avoid dust build-up. When the oil that was included with your stapler has been completely used, replace with Grizzly Model G2820 Pneumatic Tool Oil.

An efficient alternative to oiling your tool by hand is to install a lubricator in your air compressor line. If your air compressor line already has a lubricator, then regular lubrication of your stapler will not be nec- essary. Just make sure there is always oil in the lubricator.

Figure 13. Lubricating the stapler at the air inlet.

???

???

???

???

???

??????

??????

??????

?????? ??????

???

??????

???

??????

??????

??????

??????

??????

??????

??????

??????

??????

?????? ??????

??????

??????

??????

??????

?????? ??????

???

???

???

??????

??????

?????? ??????

???

???

???

???

???

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

?????? ??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

??????

?????? ??????

?????? ??????

??????

??????

??????

??????

??????

??????

??????

??????

-16-

???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

H7947/H7948 16 Gauge Stapler