Grizzly Nail Gun H7664 User Manual

2-IN-1 COMBINATION  
NAILER/STAPLER  
MODEL H7664  
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.  
#BL7293 PRINTED IN CHINA  
 
Table of Contents  
SECTION 1: SAFETY.......................................................................................................4  
Safety Instructions For Pneumatic Tools....................................................................4  
Additional Safety Instructions for Nailers and Staplers ..............................................6  
SECTION 2: INTRODUCTION .........................................................................................8  
Foreword.....................................................................................................................8  
Tool Data....................................................................................................................8  
Contact Info ................................................................................................................8  
SECTION 3: SET UP........................................................................................................9  
Unpacking...................................................................................................................9  
Inventory.....................................................................................................................9  
Compressed Air System...........................................................................................10  
Safety Yoke .............................................................................................................11  
SECTION 4: OPERATIONS...........................................................................................12  
Loading ....................................................................................................................12  
Operating..................................................................................................................12  
Adjusting Depth ........................................................................................................13  
Single/Bump Fire Operation .....................................................................................14  
Clearing Jammed Nails/Staples ...............................................................................14  
Replacing Pistons/O-Rings.......................................................................................15  
SECTION 5: MAINTENANCE ........................................................................................17  
Cleaning....................................................................................................................17  
Lubricating ................................................................................................................17  
Troubleshooting........................................................................................................18  
H7664 Parts Breakdown ..........................................................................................19  
H7664 Parts List ......................................................................................................20  
WARRANTY AND RETURNS........................................................................................21  
 
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 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.  
Indicates an imminently hazardous situation which, if  
not avoided, WILL result in death or serious injury.  
Indicates a potentially hazardous situation which, if  
not avoided, COULD result in death or serious injury.  
Indicates a potentially hazardous situation which, if  
not avoided, MAY result in minor or moderate injury.  
It may also be used to alert against unsafe practices.  
This symbol is used to alert the user to useful infor-  
NOTICE  
mation about proper operation of the equipment.  
Safety Instructions For Pneumatic Tools  
5. KEEP CHILDREN AND VISITORS  
AWAY. All children and visitors  
should be kept at a safe distance  
from work area.  
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.  
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.  
3. KEEP WORK AREA CLEAN.  
Cluttered areas and benches invite  
accidents.  
8. USE THE RIGHT TOOL. Do not  
force tool or attachment to do a job  
for which it was not designed.  
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.  
9. DO NOT USE UNDER THE  
INFLUENCE OF DRUGS OR  
ALCOHOL.  
-4-  
H7664 2-in-1 Combination Nailer/Stapler  
 
Safety Instructions For Pneumatic Tools  
18. DISCONNECT TOOLS before ser-  
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.  
vicing and changing accessories.  
19. USE  
THE  
RECOMMENDED  
ACCESSORIES. Consult the  
owner’s manual for recommended  
accessories. The use of improper  
accessories may cause risk of inju-  
ry.  
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.  
20. CHECK DAMAGED PARTS.  
Before further use of the tool, a  
guard or other part that is dam-  
aged should be carefully checked  
to determine that it will operate  
properly and perform its intended  
function. Check for alignment of  
moving parts, binding of moving  
parts, breakage of parts, mount-  
ing, and any other conditions that  
may affect its operation. A guard or  
other part that is damaged should  
be properly repaired or replaced.  
12. ALWAYS USE SAFETY GLASSES.  
Also use a face or dust mask if cut-  
ting operation is dusty. Everyday  
eyeglasses only have impact resis-  
tant lenses, they are NOT safety  
glasses.  
13. WEAR 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.  
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.  
15. DO NOT OVERREACH. Keep prop-  
er footing and balance at all times.  
16. MAINTAIN TOOLS WITH CARE.  
Keep tools lubricated and clean  
for best and safest performance.  
Follow instructions for lubricating  
and changing accessories.  
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.  
17. REDUCE  
THE  
RISK  
OF  
UNINTENTIONAL STARTING. Do  
not carry tool with hand on trig-  
ger and always disconnect from air  
when not in use.  
-5-  
H7664 2-in-1 Combination Nailer/Stapler  
 
Additional Safety Instructions for Nailers and  
Staplers  
1. HAND INJURIES: Do not place  
your hands near the nail/staple point  
of entry. A nail/staple can deflect  
and tear through the surface of the  
workpiece, puncturing your hand or  
fingers.  
5. HOSE USAGE: 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.  
2. COMBUSTIBLE GASES: Never  
connect the nailer/stapler to pres-  
surized oxygen or other combustible  
gases as a power source. Only use  
filtered, lubricated, and regulated  
compressed air.  
6. OPERATING QUESTIONS: If you  
are not sure about the intended  
operation, stop using the nailer/  
stapler. Seek formal training or  
research books or magazines that  
specialize in pneumatic tools.  
3. SAFE HANDLING: Never point  
the nailer/stapler at others! Do not  
keep the trigger pulled when loading  
fasteners, carrying, or holding tool.  
Carry the nailer/stapler only by the  
handle, never by any other part. Do  
not carry the nailer/stapler by the air  
hose. Disconnect the nailer/stapler  
from the air hose when going up and  
down ladders.  
7. MAINTENANCE: Always discon-  
nect air from the nailer/stapler  
when servicing or installing nails  
or staples. During maintenance, a  
nailer/stapler connected to air may  
fire accidentally, causing serious  
personal injury.  
8. COMPRESSED AIR RATING: Do  
not connect the nailer/stapler to  
compressed air that exceeds 120  
PSI.  
4. CLEANING: Never use gasoline or  
other flammable liquids to clean the  
nailer/stapler; vapors in the nailer/  
stapler will ignite by a spark and  
cause it to explode.  
9. CHECK VALVE: Do not use a  
check valve or any other fitting that  
allows air to remain in the tool.  
-6-  
H7664 2-in-1 Combination Nailer/Stapler  
 
Never point this nailer/stapler at your-  
self or another person! Always pay  
attention to the direction this nailer/  
stapler is pointed. Use this tool with  
respect and caution to lessen the pos-  
sibility of operator or bystander injury.  
Ignoring this warning may result in  
serious personal injury.  
Operating this nailer/stapler can  
propel objects into the air, caus-  
ing immediate eye damage. To pro-  
tect yourself, always wear American  
National Standards Institute (ANSI)  
approved safety glasses or goggles  
when operating this equipment. In  
addition, this nailer/stapler discharg-  
es at 82 decibels. To protect your  
hearing, always wear ANSI approved  
ear protection when operating this  
nailer/stapler.  
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 seri-  
ous personal injury, damage to  
equipment or poor work results.  
-7-  
H7664 2-in-1 Combination Nailer/Stapler  
 
SECTION 2: INTRODUCTION  
Foreword  
Contact Info  
If you have any comments regarding this  
manual, please write to us at the following  
address:  
We are proud to offer the Grizzly Model  
H7664 2-in-1 Combination Nailer/Stapler.  
This model is part of a growing Grizzly  
family of fine pneumatic 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 satis-  
faction.  
Grizzly Industrial, Inc.  
C/O Technical Documentation Manager  
P.O. Box 2069  
Bellingham, WA 98227-2069  
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.  
The Model H7664 features a 360° exhaust  
port, comfort grip rubber handle, and eco-  
nomical air consumption with low noise.  
5
The Model H7664 can shoot  
8"-2", 18  
Gauge brad nails and 18 Gauge 8"-158",  
5
Grizzly Industrial, Inc.  
1203 Lycoming Mall Circle  
Muncy, PA 17756  
1
4" crown staples.  
Phone: (570) 546-9663  
Fax: (800) 438-5901  
The specifications, details, and photo-  
graphs in this manual represent the Model  
H7664 as supplied when the manual was  
prepared. However, owing to Grizzly’s pol-  
icy of continuous improvement, changes  
may be made at any time with no obliga-  
tion on the part of Grizzly.  
Tool Data  
Brad Length.................... 58"-2" (18 Gauge)  
Staple Length ..................................58"-158  
"
Staple Crown.......................14" (18 Gauge)  
Magazine Capacity....................100 pieces  
Air Inlet ...........................................¼" NPT  
Weight .............................................3.3 lbs.  
Operating Pressure .................. 60-100 PSI  
Read the manual before operation.  
Become familiar with this nailer/sta-  
pler, its safety instructions, and its  
operation before beginning any work.  
Serious personal injury may result if  
safety or operational information is  
not understood or followed.  
-8-  
H7664 2-in-1 Combination Nailer/Stapler  
 
SECTION 3: SET UP  
Unpacking  
Inventory  
Your Model H7664 left our warehouse in  
a carefully packed box. If you discover the  
nailer/stapler is damaged after you have  
signed for delivery, please immediately  
call Customer Service at (570) 546-9663  
for advice.  
After you open the nailer/stapler box, you  
should find the following.  
Model H7664 Inventory (Figure 1)  
A. 2-in-1 Nailer/Stapler........................... 1  
B. Safety Goggles ................................. 1  
C. Pneumatic Tool Oil ............................ 1  
D. Hex Wrench 3mm.............................. 1  
E. Hex Wrench 4mm.............................. 1  
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.  
F. 114" Brad Nail Sticks .......................... 2  
3
G.  
4" Staple Sticks................................ 2  
H. Carrying Case.................................... 1  
When you are completely satisfied with  
the condition of the shipment, you should  
inventory the equipment.  
B
F
G
H
C
E
D
A
Figure 1. Model H7664 inventory.  
-9-  
H7664 2-in-1 Combination Nailer/Stapler  
 
Compressed Air  
System  
The Model H7664 is designed to be oper-  
ated at 60-100 PSI using clean, dry, regu-  
lated, compressed air. DO NOT exceed  
the 120 PSI maximum operating pres-  
sure for your model.  
Before using your new nailer/stapler, reg-  
ulate the air pressure on your air compres-  
sor to the minimum PSI for your model.  
Exceeding the maximum permissible  
operating pressure may cause the  
nailer/stapler to explode, blowing  
metal fragments in all directions. To  
protect yourself from serious per-  
sonal injury, DO NOT allow your air  
compressor to exceed the recom-  
mended pressure when connected to  
this nailer/stapler!  
An in-line filter/lubricator/regulator unit,  
depicted in Figure 2, can be installed and  
should be located as close to the nailer/  
stapler as possible.  
This filter/lubricator/regulator unit will  
protect your tool from damaging water  
build-up, allow you to adjust and maintain  
constant air pressure to your tool, and  
save you the inconvenience of having to  
manually lubricate 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.  
Quick  
Connector  
Quick  
Connector  
Filter  
Oiler  
Your  
Tool  
Air  
Compressor  
Quick  
Coupler  
Regulator  
Quick  
Coupler  
Air Hose  
Figure 2. Typical filter/lubricator/regulator installation order.  
-10-  
H7664 2-in-1 Combination Nailer/Stapler  
 
5. Without pressing the trigger, depress  
the safety yoke mechanism against a  
scrap piece of wood that is clean and  
free of any knots, nails, or other foreign  
objects.  
Safety Yoke  
A safety yoke mechanism on the nose of  
the nailer/stapler acts as a safety device.  
When the trigger is pressed, the nailer/  
stapler will not fire until the safety yoke  
mechanism is depressed.  
— If the nailer/stapler does not fire,  
then the safety yoke mechanism is  
working correctly.  
Before you use your nailer/stapler for the  
first time, check the safety yoke mecha-  
nism to ensure proper function. To do  
this:  
— If the stapler does fire when you  
do this, immediately disconnect the  
stapler from the air supply and call  
Grizzly Technical Support at (570)  
546-9663 for help.  
1. DISCONNECT NAILER/STAPLER  
FROM THE AIR SUPPLY!  
— If the stapler fires when the trig-  
ger is pulled, without the safety  
yoke mechanism being depressed,  
disconnect the stapler from the air  
supply and call Grizzly Technical  
Support at (570) 546-9663 for help.  
2. Make sure the magazine is empty and  
contains no nails/staples.  
3. Make sure the trigger and the safety  
yoke mechanism move up and down  
without sticking.  
— If the stapler is not working properly,  
check the lubrication of the sliding  
mechanisms of the safety yoke.  
4. Connect the nailer/stapler to the air  
supply.  
The safety yoke is  
a
mechanical  
device that can fail. Never rely on the  
safety yoke mechanism as an excuse  
to point the nailer/stapler at yourself  
or any bystanders. Serious injury may  
occur.  
-11-  
H7664 2-in-1 Combination Nailer/Stapler  
 
SECTION 4: OPERATIONS  
Loading  
When replacing brads or staples in your  
Model H7664, follow these guidelines:  
Pusher  
Gauge: 18  
Brad Length: 58"-2"  
Magazine  
Staple Length: 58"-158" (crown 14")  
Capacity: 100  
Sight Window  
Figure 4. Loading nails into magazine.  
To load your nailer/stapler:  
4. Slide the staples or brads all the way  
down to the nose of the nailer/stapler.  
1. DISCONNECT NAILER/STAPLER  
FROM THE AIR SUPPLY!  
5. Push the magazine toward the nose of  
the nailer/stapler until the catch lever  
locks.  
2. Grip the nailer/stapler firmly, unlatch  
the catch lever (Figure 3), and pull the  
magazine pusher back completely.  
6. Reload the nailer when the magazine  
sight window (Figure 4) shows the nail  
or staple level is low. The sight window  
shows up to approximately 50 nails or  
staples loaded.  
Operating  
If you have not read the safety instruc-  
tions in this manual, do not operate the  
nailer/stapler.  
Figure 3. Catch lever engaged and  
magazine pusher retracted.  
3. Insert a strip of brads or staples, point-  
ed-end down, into the magazine as  
shown in Figure 4.  
Before you operate your nailer/stapler,  
place two to three drops of the included  
oil into the quick connect fitting where the  
nailer/stapler connects to the air supply.  
To operate your nailer/stapler:  
1. Connect the air supply to the quick  
connect fitting.  
-12-  
H7664 2-in-1 Combination Nailer/Stapler  
 
2. To test for proper nail/staple penetra-  
tion, hold the nailer/stapler perpen-  
dicular to the surface of a piece of  
clean scrap wood that is thick enough  
for the length of nails/staples you have  
loaded.  
Adjusting Depth  
A depth adjustment knob is attached to the  
nose for setting the nail/staple depth.  
To adjust the depth:  
3. Depress the safety yoke mechanism  
on your workpiece.  
1. DISCONNECT NAILER/STAPLER  
FROM THE AIR SUPPLY!  
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 nail/staple in case  
of deflection.  
2. Rotate the adjustment knob (Figure  
6) clockwise to drive the nails/staples  
deeper or counterclockwise to drive the  
nails/staples shallower.  
Deflection is caused when grain  
irregularities, knots or foreign objects  
inside the wood cause the nail/staple  
to change its path, resulting in the  
nail/staple puncturing the surface of  
the workpiece, as shown in Figure 5.  
Adjustment Knob  
Besides damaging your workpiece,  
deflection can cause injury if your free  
hand is securing the workpiece in the  
location that the nail/staple deflects.  
Figure 6. Rotating depth adjustment  
knob.  
3. Connect nailer/stapler to the air sup-  
ply and test the nail/staple depth, and  
repeat this entire procedure if neces-  
sary until the nail/staple depth is satis-  
factory.  
Figure 5. Example of nail deflection.  
5. Pull the trigger.  
— If the nail/staple drove into the wood  
far enough, continue with your  
intended operations.  
— If the nail/staple either went too far  
or not far enough, then go to the  
Adjusting Depth sub-section on  
this page.  
-13-  
H7664 2-in-1 Combination Nailer/Stapler  
 
Single/Bump Fire  
Operation  
Clearing Jammed  
Nails/Staples  
A jammed nail or staple must be cleared  
before using the nailer/stapler again.  
The nailer/stapler is designed to fire one  
nail/staple at a time, or one after another,  
using the safety yoke mechanism. This is  
known as "bump fire".  
To clear a jammed nail or staple from  
the magazine:  
To operate your nailer/stapler in single  
fire mode:  
1. DISCONNECT  
THE  
NAILER/  
THE AIR  
STAPLER  
SUPPLY!  
FROM  
1. Depress the safety yoke mechanism  
against the workpiece.  
2. Unlock the catch lever and pull the  
magazine pusher back completely.  
2. Pull the trigger, then remove your finger  
from the trigger after the nail/staple is  
driven.  
3. Locate and remove the jammed nail/  
staple with a pair of needle nose pli-  
ers.  
To operate your nailer/stapler in bump  
fire mode:  
4. Throw the damaged nail/staple away.  
1. Pull the trigger.  
5. Inspect the nail/staple stick. If it is bent  
or damaged, throw it away and insert  
a new stick that only contains clean,  
undamaged nails/staples. DO NOT  
use dirty or damaged nails/staples!  
2. Press the safety yoke mechanism  
against your workpiece and raise it  
after the nail/staple is driven.  
3. Hold the trigger and repeat Step 2 to  
6. Push the magazine pusher forward  
to the front of the magazine until the  
catch lever locks.  
drive more nails/staples.  
-14-  
H7664 2-in-1 Combination Nailer/Stapler  
 
To clear a jammed nail from the dis-  
charge area:  
Replacing Pistons/O-  
Rings  
1. DISCONNECT NAILER/STAPLER  
FROM THE AIR SUPPLY!  
If you use your nailer/stapler day in and  
day out, repair pistons are cheap insur-  
ance against wasted down time and lost  
profits, in the event that a piston or piston  
shaft becomes worn out. A replacement  
piston and O-ring kit, part PH7664084,  
may be purchased for the Model H7664.  
2. Unlock the catch lever and pull the  
magazine pusher back completely.  
3. Remove the nail/staple stick from the  
magazine.  
4. Loosen the cap screws shown in  
Figure 7 and remove the cover with  
a 3mm hex wrench. Dislodge the  
jammed nail/staple with a pair of nee-  
dle nose pliers.  
5. Secure the cover with the cap screws  
removed in Step 4.  
Cap Screws  
Always disconnect air from nailer/  
stapler whenever servicing! During  
maintenance, a nailer/stapler con-  
nected to air may fire accidentally,  
causing serious personal injury!  
Cover  
To replace a piston and O-ring:  
Figure 7. Opening cover to clear a jam.  
6. Throw the damaged nail/staple away.  
1. DISCONNECT NAILER/STAPLER  
FROM THE AIR SUPPLY!  
2. Remove all nails/staples from the mag-  
7. Inspect the nail/staple stick. If it is bent  
or damaged, throw it away and insert  
a new stick that only contains clean,  
undamaged nails/staples. DO NOT  
use dirty or damaged nails/staples!  
azine.  
3. Remove the four cap screws on the  
head of the nailer/stapler, near the  
exhaust port.  
8. Slide the magazine pusher forward  
to the front of the magazine until the  
catch lever locks.  
4. Remove the cap.  
5. The top of the piston should now be  
visible inside the cylinder, which is  
housed in the head of the nailer/sta-  
pler.  
-15-  
H7664 2-in-1 Combination Nailer/Stapler  
 
10. Insert the new piston in the cylinder.  
Make sure that the grooves on the pis-  
ton shaft line up with those on the guide  
at the bottom of the cylinder. The new  
piston should easily slide into the cyl-  
inder. DO NOT force the piston into  
the cylinder! If the piston is not easily  
inserted, double-check the alignment of  
the piston shaft with the grooves on the  
guide.  
6. Open the nose cover as if to clear a  
jammed nail/staple.  
7. Watch the discharge area and push  
the top of the piston with your finger.  
You will see the piston shaft slide  
down the discharge area.  
8. With a long flathead screwdriver or  
similarly shaped tool, push the piston  
shaft back inside the nailer/stapler  
until you can grip the piston head and  
remove it from the cylinder. (Be care-  
ful not to scratch the discharge area  
when pushing the piston shaft with the  
screwdriver.)  
11. After the piston is inserted correctly,  
close the magazine pusher. Replace  
the rear cap assembly and tighten the  
4 cap screws.  
12. For more assistance, or to install a  
complete O-ring set, refer to the appro-  
priate breakdown diagram in the back  
of this manual for component loca-  
tions.  
9. Place a new O-ring on the new piston  
and apply a thin film of the nailer/sta-  
pler lubricating oil on the O-ring.  
-16-  
H7664 2-in-1 Combination Nailer/Stapler  
 
SECTION 5: MAINTENANCE  
Lubricating  
Cleaning  
Disconnect the nailer/stapler from the  
air supply before cleaning. Use a good  
solvent to clean the nose assembly of  
the nailer/stapler. Always be sure that the  
nailer/stapler is dry before using it again.  
Pneumatic tool oil has been included with  
your new Grizzly nailer/stapler to help  
maintain its useful life. Place two to three  
drops of oil in the nailer/stapler air inlet (as  
shown in Figure 8) before every use, or  
after 2 hours of continuous use.  
Do not allow dust, chips, sand, etc. into  
the air connectors or into the body of the  
nailer/stapler; this may result in leaks and  
damage to the nailer/stapler and the air  
couplings.  
Wipe off any excess oil near the nail-  
er/stapler exhaust to avoid dust build-  
up. When the oil that was included with  
the nailer/stapler has been completely  
used, replace with Grizzly Model G2820  
Pneumatic Tool Oil.  
Another option to manual oiling would be  
to install a lubricator in your air compres-  
sor line. If your air compressor line already  
has a lubricator, then regular lubrication of  
your nailer/stapler will not be necessary.  
Just make sure there is always oil in the  
lubricator.  
Never use gasoline or other flamma-  
ble liquids to clean this tool. Vapors  
in the tool may ignite, causing the  
tool to explode. Ignoring this warning  
may lead to serious personal injury or  
even death!  
Figure 8. Lubricating nailer/stapler via air  
inlet.  
-17-  
H7664 2-in-1 Combination Nailer/Stapler  
 
Troubleshooting  
Symptom  
Air leaking at trig-  
Possible Cause  
1. O-rings in trigger valve hous-  
Solution  
1. O-rings must be replaced  
& operation of safety yoke  
must be checked.  
ger valve area.  
ing are damaged.  
Air leaking between 1. Loose screws in housing.  
1. Tighten screws.  
2. Replace O-ring.  
3. Tighten air fitting & use tef-  
lon tape.  
housing and hose.  
2. Damaged O-ring.  
3. Loose air fitting.  
Air leaking between 1. Damaged seal.  
housing and cap  
1. Replace damaged seals.  
assembly.  
Tool skips fasten-  
ers while discharg-  
ing.  
1. Air leaks.  
2. Dirt in nose.  
3. Dirt or damage prevents fas-  
teners from moving freely in  
magazine.  
1. Tighten screws and fittings.  
2. Clean nose.  
3. Clean magazine and  
inspect/repair damage.  
4. Inadequate air flow to tool.  
4. Check fitting, hose, com-  
pressor & air pressure.  
5. Replace piston O-ring.  
Lubricate.  
5. Worn O-ring on piston or lack  
of lubrication.  
6. Damaged O-rings on trigger  
valve.  
6. Replace trigger valve O-  
rings.  
7. Worn bumper.  
8. Cap seal leaking.  
7. Replace bumper.  
8. Replace cap seal.  
Tool runs slowly  
or has a loss of  
power.  
1. Nailer/stapler is not sufficiently 1. Lubricate nailer/stapler.  
lubricated.  
2. Broken spring in cap assem-  
bly.  
2. Replace spring.  
3. Exhaust port in cap is blocked. 3. Clean or replace damaged  
internal parts.  
Fasteners fre-  
quently jam the  
nailer/stapler.  
1. Fasteners are the wrong size. 1. Use correct nails/staples.  
2. Nailer/stapler is not sufficiently 2. Lubricate nailer/stapler.  
lubricated.  
3. Fasteners are bent or dirty.  
3. Use undamaged, clean fas-  
teners.  
4. Magazine or nose screws are  
loose.  
4. Tighten magazine.  
5. Driver or driver guide are worn 5. Replace worn or damaged  
or damaged.  
parts.  
Nailer/stapler does  
not fire.  
1. Fastener is jammed in maga-  
zine or discharge area.  
1. Clear magazine or dis-  
charge area.  
2. Piston shaft is damaged.  
3. Air pressure too low.  
2. Replace piston shaft.  
3. Check/increase air pres-  
sure.  
-18-  
H7664 2-in-1 Combination Nailer/Stapler  
 
H7664 Parts Breakdown  
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-19-  
H7664 2-in-1 Combination Nailer/Stapler  
 
H7664 Parts List  
REF PART #  
DESCRIPTION  
REF PART #  
DESCRIPTION  
1
PH7664001  
PH7664002  
PH7664003  
PSB15M  
SPCL CAP SCR M4-.7 X 20  
AIR DEFLECTOR  
COMPRESSION SPRING  
CAP SCREW M5-.8 X 20  
LOCK WASHER 5MM  
CYLINDER COVER  
O-RING 13 X 2.4  
SEALING WASHER  
COMPRESSION SPRING  
ON/OFF VALVE  
SEALING WASHER  
O-RING 24.8 X 3.5  
O-RING 31.2 X 2.5  
COLLAR  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
81  
82  
83  
84  
PH7664043  
PH7664044  
PSB23M  
SAFETY YOKE  
2
BAR  
3
CAP SCREW M4-.7 X 12  
FLAT HD SCR M4-.7 X 6  
O-RING 2.4 X 1.8  
PUSHER STICK  
PUSHER  
4
PFH32M  
5
PLW01M  
PH7664047  
PH7664048  
PH7664049  
PH7664050  
PH7664051  
PH7664052  
PH7664053  
PH7664054  
PSB22M  
6
PH7664006  
PH7664007  
PH7664008  
PH7664009  
PH7664010  
PH7664011  
PH7664012  
PH7664013  
PH7664014  
PH7664015  
PH7664016  
PH7664017  
PH7664018  
PH7664019  
PH7664020  
PH7664021  
PH7664022  
PH7664023  
PH7664024  
PH7664025  
PH7664026  
PH7664027  
PH7664028  
PH7664029  
PH7664030  
PH7664031  
PH7664032  
PH7664033  
PH7664034  
PH7664035  
PRP12M  
7
8
PUSHER STICK  
O-RING 4.5 x 1.2  
COMPRESSION SPRING  
CATCH LEVER  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
COMPRESSION SPRING  
CAP SCREW M4-.7 X 35  
FIXED SEAT  
PH7664056  
PH7664057  
PH7664058  
PH7664059  
PH7664060  
PH7664061  
PH7664062  
PH7664063  
PSB41M  
O-RING 42.6 X 2.35  
O-RING 30 X 1.8  
SEALING GASKET  
CYLINDER  
PIN 3.93 X 15.50  
PIPE  
STICKER PLATE  
SCALE  
O-RING 29.7 X 3.55  
PISTON ASSEMBLY  
BUMPER  
SLIDING MAGAZINE  
NOSE  
SPACER  
BODY  
CAP SCREW M4-.7 X 14  
CAP SCREW M4-.7 X 10  
NOSE COVER  
GROMMET  
PSB17M  
PISTON VALVE  
PH7664066  
PH7664067  
PH7664068  
PH7664069  
PH7664070  
PH7664071  
PSB18M  
O-RING 11 X 1.2  
COMPRESSION SPRING  
VALVE STEM  
DRIVER GUIDE  
PIN 1.5 X 12  
INLAY SLICE  
O-RING 8 X 1  
MAGAZINE  
O-RING 1.9 X 1.1  
TRIGGER VALVE GUIDE  
O-RING 11.2 X 1.85  
PIN 2.97 X 30  
FIXED SEAT  
CAP SCREW M4-.7 X 8  
HEX NUT M4-.7  
CAP SCREW M4-.7 X 16  
RUBBER HANDLE CASE  
O-RING 36.3 X 3.55  
END CAP  
PN04M  
PSB16M  
TRIGGER  
PH7664075  
PH7664076  
PH7664077  
PH7664078  
PH7664079  
PLW02M  
O-RING 2.96 X 1.7  
SAFETY PLATE  
ROLL PIN 2.5 X 18  
STAND  
1/4" NPT MALE CONNECT  
AIR PLUG COVER  
LOCK WASHER 4MM  
HEX WRENCH 3MM  
HEX WRENCH 4MM  
CARRYING CASE  
PISTON REPAIR KIT  
PH7664037  
PH7664038  
PEC12M  
COMRESSION SPRING  
E-CLIP 12MM  
PAW03M  
PH7664040  
PH7664041  
PH7664042  
STAND PLATE  
PAW04M  
RETAINER SNAP  
ADJUSTING NUT  
PH7664083  
PH7664084  
-20-  
H7664 2-in-1 Combination Nailer/Stapler  
 
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. This is Grizzly’s sole written warranty and any and all warranties that may  
be implied by law, including any merchantability or fitness, for any particular purpose, are  
hereby limited to the duration of this written warranty. We do not warrant or represent that  
the merchandise complies with the provisions of any law or acts unless the manufacturer so  
warrants. In no event shall Grizzly’s liability under this warranty exceed the purchase price  
paid for the product and any legal actions brought against Grizzly shall be tried in the State  
of Washington, County of Whatcom.  
We shall in no event be liable for death, injuries to persons or property or for incidental,  
contingent, special, or consequential damages arising from the use of our products.  
To take advantage of this warranty, contact us by mail or phone and give us all the details.  
We will then issue you a “Return Authorization Number,” which must be clearly posted on  
the outside as well as the inside of the carton. We will not accept any item back without this  
number. Proof of purchase must accompany the merchandise.  
The manufacturers reserve the right to change specifications at any time because they  
constantly strive to achieve better quality equipment. We make every effort to ensure that  
our products meet high quality and durability standards and we hope you never need to  
use this warranty.  
Please feel free to write or call us if you have any questions about the machine or the  
manual.  
Grizzly Industrial, Inc.  
1203 Lycoming Mall Circle  
Muncy, PA 17756  
Phone: (570) 546-9663  
Fax: (800) 438-5901  
E-Mail:  
Thank you again for your business and continued support. We hope to serve you again  
soon!  
 
-22-  
H7664 2-in-1 Combination Nailer/Stapler  
 
WARRANTY CARD  
Name_________________________________________________________________  
Street_________________________________________________________________  
City _______________________ State_________________________ Zip _________  
Phone #____________________ Email ________________________ Invoice #_____  
Model # ____________________ Order #_______________________ Serial #______  
The following information is given on a voluntary basis. It will be used for marketing purposes to  
help us develop better products and services. All information is strictly confidential.  
1. How did you learn about us?  
____Advertisement  
____Friend  
____Catalog  
____Card Deck  
____Website  
Other:________________________  
2. Which of the following magazines do you subscribe to?  
____ Cabinet Maker  
____ Family Handyman  
____ Hand Loader  
____ Handy  
____ Home Shop Machinist ____ Precision Shooter  
____ Journal of Light Cont. ____ Projects in Metal  
____ Popular Mechanics  
____ Popular Science  
____ Popular Woodworking ____ Wooden Boat  
____ Practical Homeowner ____ Woodshop News  
____ Today’s Homeowner  
____ Wood  
____ Woodsmith  
____ Woodwork  
____ Live Steam  
____ Model Airplane News ____ Rifle  
____ Modeltec  
____ Old House Journal  
____ RC Modeler  
____ Woodworker West  
____ Woodworker’s Journal  
____ Other:  
____ Shop Notes  
____ Shotgun News  
3. What is your annual household income?  
____$20,000-$29,000  
____$30,000-$39,000  
____$40,000-$49,000  
____$70,000+  
____$50,000-$59,000  
____$60,000-$69,000  
4. What is your age group?  
____20-29  
____30-39  
____60-69  
____40-49  
____70+  
____50-59  
5. How long have you been a woodworker/metalworker?  
____0-2 Years ____2-8 Years ____8-20 Years  
____20+ Years  
6. How many of your machines or tools are Grizzly?  
____0-2 ____3-5 ____6-9  
____10+  
____No  
____No  
7. Do you think your machine represents a good value? ____Yes  
8. Would you recommend Grizzly Industrial to a friend? ____Yes  
9. Would you allow us to use your name as a reference for our customers in your area?  
Note: We never use names more than 3 times. ____Yes ____No  
10. Comments:_________________________________________________________  
______________________________________________________________________  
______________________________________________________________________  
______________________________________________________________________  
 
Send a Grizzly Catalog to a friend:  
Name________________________________  
Street________________________________  
City______________State______Zip_______  
FOLD ALONG DOTTED LINE  
Place  
Stamp  
Here  
GRIZZLY INDUSTRIAL, INC.  
P.O. BOX 2069  
BELLINGHAM, WA 98227-2069  
TAPE ALONG EDGES--PLEASE DO NOT STAPLE  
 

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