Grizzly Nail Gun H7665 User Manual

21° ROUND HEAD FRAMING NAILER  
MODEL H7665  
INSTRUCTION MANUAL  
COPYRIGHT © JULY, 2005 BY GRIZZLY INDUSTRIAL, INC. REVISED DECEMBER, 2007 (TS)  
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE  
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.  
#TR7353 PRINTED IN CHINA  
 
Safety Instructions For Pneumatic Tools  
17. DISCONNECT TOOLS before ser-  
vicing, changing accessories, or  
moving to another location.  
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.  
18. DO NOT OVERREACH. Keep  
proper footing and balance at all  
times.  
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.  
19. USE  
THE  
RECOMMENDED  
ACCESSORIES. Consult owner’s  
manual for recommended acces-  
sories. The use of improper acces-  
sories may cause risk of injury.  
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.  
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.  
13. ALWAYS WEAR ANSI APPROVED  
HEARING PROTECTION.  
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.  
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.  
22. NEVER ALLOW UNTRAINED  
USERS TO USE THIS TOOL  
WHILE UNSUPERVISED.  
15. MAINTAIN TOOLS WITH CARE.  
Keep tools lubricated and clean  
for best and safest performance.  
Follow instructions for lubricating  
and changing accessories.  
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.  
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.  
-1-  
H7665 21° Round Head Framing Nailer  
 
Additional Safety Instructions for Nailers  
5. 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 with-  
out stretching. However, an overly  
long air hose in the work area may  
be a tripping hazard.  
1. HAND INJURIES: Do not place your  
hands near the nail point of entry. A  
nail can deflect and tear through the  
surface of the workpiece, puncturing  
your hand or fingers.  
2. COMBUSTIBLE GASES: Never  
connect the nailer to pressurized  
oxygen or other combustible gases  
as a power source. Only use fil-  
tered, lubricated, and regulated  
compressed air.  
6. OPERATING QUESTIONS: If you  
are not sure about the intended  
operation, stop using the nailer.  
Seek formal training or research  
sources that specialize in pneu-  
matic tools.  
3. SAFE HANDLING: Never point the  
nailer at others! Do not keep the  
trigger pulled when loading fasten-  
ers, carrying, or holding tool. Carry  
the nailer only by the handle, never  
by any other part. Do not carry the  
nailer by the air hose. Disconnect  
the nailer from the air hose when  
going up and down ladders.  
7. MAINTENANCE: Always discon-  
nect air from the nailer when ser-  
vicing or installing nails. During  
maintenance, a nailer connected  
to air may fire accidentally, caus-  
ing serious personal injury.  
8. COMPRESSED AIR RATING: Do  
not connect the nailer to com-  
pressed air that exceeds 120 PSI.  
4. CLEANING: Never use gasoline or  
other flammable liquids to clean the  
nailer; vapors in the nailer 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.  
-2-  
H7665 21° Round Head Framing Nailer  
 
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-  
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, this  
nailer discharges at up to 90 deci-  
bels. To protect your hearing, always  
wear ANSI approved ear protection  
when operating this nailer.  
Nailer/stapler accidents routinely hap-  
pen while moving the gun to another  
location, such as up ladders, to anoth-  
er room, or even another job site.  
Always disconnect the gun immedi-  
ately 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.  
-3-  
H7665 21° Round Head Framing Nailer  
 
INTRODUCTION  
Foreword  
Contact Info  
We are proud to offer the Grizzly Model  
H7665 21° Round Head Framing Nailer.  
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.  
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  
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 H7665 features a 360° exhaust  
port, comfort grip rubber handle, and eco-  
nomical air consumption.  
The specifications, details, and photo-  
graphs in this manual represent the Model  
H7665 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.  
Grizzly Industrial, Inc.  
1203 Lycoming Mall Circle  
Muncy, PA 17756  
Phone: (570) 546-9663  
Fax: (800) 438-5901  
Specifications  
Nail Type ..................................Roundhead  
Nail Angle ..............................................21°  
Nail Diameter....................................0.113"  
Nail Length ......................................2"–312  
"
Magazine Capacity........................ 75 Nails  
Air Inlet ...........................................¼" NPT  
Weight .............................................8.4 lbs.  
Operating Pressure ................. 60–100 PSI  
Read the manual before operation.  
Become familiar with this nailer, its  
safety instructions, and its operation  
before beginning any work. Serious  
personal injury may result if safety or  
operational information is not under-  
stood or followed.  
-4-  
H7665 21° Round Head Framing Nailer  
 
SET UP  
Unpacking  
Inventory  
Your Model H7665 left our warehouse in  
a carefully packed box. If you discover  
the nailer is damaged after you have  
signed for delivery, please immediately  
call Customer Service at (570) 546-9663  
for advice.  
After you open the nailer box, you should  
find the following.  
Model H7665 Inventory (Figure 1)  
A. Nailer.................................................. 1  
B. Safety Goggles ................................. 1  
C. Pneumatic Tool Oil ............................ 1  
D. Hex Wrenches 3, 4, 5, 6mm.....1 Each  
E. Carrying Case.................................... 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.  
When you are completely satisfied with  
the condition of the shipment, you should  
inventory the equipment.  
A
B
D
C
E
Figure 1. Model H7665 inventory.  
-5-  
H7665 21° Round Head Framing Nailer  
 
Compressed Air  
System  
The Model H7665 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, regulate the  
air pressure on your air compressor to the  
minimum PSI for your model.  
Exceeding the maximum permissible  
operating pressure may cause the  
nailer to explode, blowing metal frag-  
ments in all directions. To protect  
yourself from serious personal injury,  
DO NOT allow your air compressor to  
exceed the recommended pressure  
when connected to this nailer!  
An in-line filter/lubricator/regulator unit,  
depicted in Figure 2, can be installed and  
should be located as close to the nailer  
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  
Lubricator  
Regulator  
Your  
Tool  
Air  
Compressor  
Quick  
Coupler  
Quick  
Coupler  
Air Hose  
Filter  
Figure 2. Typical filter/lubricator/regulator installation order.  
-6-  
H7665 21° Round Head Framing Nailer  
 
Testing the Safety  
Nose Mechanism  
The safety mechanism is a mechanical  
device that can fail. Never rely on this  
mechanism as an excuse to point the  
nailer at yourself or any bystanders.  
Serious injury may occur.  
A safety mechanism on the nose of the  
nailer protects against accidental firing.  
When the trigger is pressed, the nailer will  
not fire until the safety nose mechanism  
is depressed.  
5. Without pressing the trigger, depress  
the safety nose mechanism against a  
scrap piece of wood that is clean and  
free of any knots, nails, or other foreign  
objects.  
Before you use your nailer for the first  
time, check the safety nose mechanism  
to ensure proper function.  
— If the nailer does not fire, then the  
safety nose mechanism is working  
correctly.  
To verify that the safety nose is work-  
ing correctly:  
1. DISCONNECT NAILER FROM THE  
AIR SUPPLY!  
— If the nailer does fire when you  
do this, immediately disconnect the  
nailer 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.  
3. Make sure the trigger and the safety  
nose mechanism move up and down  
without sticking.  
6. Without depressing the safety nose  
against a scrap piece of wood, point  
the nailer in a safe direction, and pull  
the trigger.  
4. Connect the nailer to the air supply.  
— If the nailer does not fire, then the  
safety nose mechanism is working  
correctly.  
— If the nailer does fire when the trig-  
ger is pulled, without the safety nose  
mechanism being depressed, then  
the nailer is not working properly,  
call Grizzly Technical Support at  
(570) 546-9663 for help.  
-7-  
H7665 21° Round Head Framing Nailer  
 
OPERATIONS  
Loading  
Magazine  
Catch  
When replacing nails in your Model  
H7665, follow these guidelines:  
Type:  
Angle:  
Round Head  
21°  
Diameter:0.113"  
Length: 2"–312  
Capacity: 75  
"
Figure 4. Loading nails into magazine.  
To load your nailer:  
4. Slide the nails all the way down to the  
nose of the nailer.  
1. DISCONNECT NAILER FROM THE  
AIR SUPPLY!  
5. With one hand on the magazine handle  
for control, release the magazine catch  
and slowly allow the magazine to press  
against the nails. Note: Releasing  
the magazine catch and allowing it to  
"snap" in position is hard on the nailer.  
2. Slide the magazine back, as shown in  
Figure 3, until it locks in place.  
Magazine  
Handle  
Figure 3. Sliding magazine back and  
engaging the catch.  
3. Insert a strip of nails, pointed-end  
down, into the magazine as shown in  
Figure 4.  
-8-  
H7665 21° Round Head Framing Nailer  
 
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 in case of  
deflection.  
Operating  
If you have not read the safety instruc-  
tions in this manual, do not operate  
the nailer.  
Deflection is caused when grain  
irregularities, knots or foreign objects  
inside the wood cause the nail to  
change its path, resulting in the  
nail puncturing the surface of the  
workpiece, as shown in Figure 5.  
Before you operate your nailer, place five  
to six drops of the included oil into the  
quick connect fitting where the nailer con-  
nects to the air supply.  
To operate your nailer:  
Besides damaging your workpiece,  
deflection can cause injury if your free  
hand is securing the workpiece in the  
location that the nail deflects.  
1. Connect the air supply to the quick  
connect fitting.  
2. To test for proper nail penetration, hold  
the nailer perpendicular to the surface  
of a piece of clean scrap wood that is  
thick enough for the length of nails you  
have loaded.  
3. Depress the safety nose mechanism  
against your workpiece.  
Figure 5. Example of nail deflection.  
5. Pull the trigger.  
— If the nail drove into the wood far  
enough, continue with your intended  
operations.  
— If the nail either went too far or not  
far enough, then go to the Adjusting  
Depth subsection on the next page.  
-9-  
H7665 21° Round Head Framing Nailer  
 
Adjusting Depth  
Clearing Jammed  
Nails  
A depth adjustment device is attached to  
the nose for setting the nail depth.  
A jammed nail must be cleared before  
using the nailer again.  
To adjust the depth:  
To clear a jammed nail from the dis-  
charge area:  
1. DISCONNECT NAILER FROM THE  
AIR SUPPLY!  
1. DISCONNECT NAILER FROM THE  
AIR SUPPLY!  
2. Loosen the cap screw on the depth  
adjustment device (Figure 6), and  
move the safety nose backward to  
increase the nail depth or forward to  
decrease the nail depth.  
2. Pull the magazine handle all the way  
back until it latches.  
3. Remove the nail stick from the maga-  
zine.  
4. Locate the opening in the underside of  
the nailer nose (Figure 7).  
5. Dislodge the jammed nail with a tool  
that will fit in the slot on the underside  
of the nose, such as needle nose pli-  
ers.  
Adjustment  
Device  
Safety Nose  
Figure 6. Depth adjustment controls.  
6. Throw the damaged nail away and  
insert a new nail stick that only con-  
tains clean, undamaged nails. DO  
NOT use dirty or damaged nails!  
3. Connect nailer to the air supply, test  
the nail depth, and repeat this entire  
procedure if necessary until the nail  
depth is satisfactory.  
Nose Opening  
Figure 7. Nose opening for clearing jams.  
-10-  
H7665 21° Round Head Framing Nailer  
 
4. The top of the piston should now be  
visible inside the cylinder, which is  
housed in the head of the nailer.  
Replacing  
Pistons/O-Rings  
5. Open the nose cover as if to clear a  
If you use your nailer day in and day  
out, repair pistons are cheap insurance  
against wasted down time and lost profits,  
in the event that a piston or piston shaft  
becomes worn out.  
jammed nail.  
6. 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.  
The piston repair kit part number for the  
Model H7665 is #PH7665095. For your  
convenience, refer to the parts breakdown  
during this procedure to identify parts and  
their locations inside the nailer.  
7. With a long flathead screwdriver or  
similarly shaped tool, push the piston  
shaft back inside the nailer until you  
can grip the piston head and remove  
it from the cylinder. (Be careful not to  
scratch the discharge area when push-  
ing the piston shaft with the screw-  
driver.)  
8. Place a new O-ring on the new piston  
and apply a thin film of the nailer lubri-  
cating oil on the O-ring.  
9. Insert the new piston in the cylinder.  
Make sure that the grooves on the  
piston shaft line up with those on the  
guide at the bottom of the cylinder.  
The new piston should easily slide  
into the cylinder. 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.  
Always disconnect air from nailer  
whenever servicing! During mainte-  
nance, a nailer connected to air may  
fire accidentally, causing serious  
personal injury!  
To replace a piston and O-ring(s):  
1. DISCONNECT NAILER FROM THE  
AIR SUPPLY!  
10. After the piston is inserted correctly,  
close the magazine. Replace the rear  
cap assembly and tighten the 4 cap  
screws.  
2. Remove all nails from the magazine  
cartridge.  
11. 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.  
3. Remove the four cap screws on the  
head of the nailer, near the exhaust  
port, and remove the cylinder cover.  
-11-  
H7665 21° Round Head Framing Nailer  
 
CLEANING & LUBRICATION  
Lubricating  
Cleaning  
Use a good solvent to clean the nose  
assembly of the nailer. Always be sure  
that the nailer is dry before using it again.  
Special pneumatic tool oil has been  
included with your new Grizzly nailer to  
help maintain its useful life. Place two to  
six drops of oil in the nailer air inlet (as  
shown in Figure 8) every 2 hours of con-  
tinuous use.  
Do not allow dust, chips, sand, etc. into  
the air connectors or into the body of the  
nailer; this may result in leaks and dam-  
age to the nailer and the air couplings.  
Wipe off any excess oil near the nailer  
exhaust to avoid dust build-up. When  
the oil that was included with the nailer  
has been completely used, replace with  
Grizzly Model G2820 Pneumatic Tool Oil.  
Another option to manual oiling would be  
to simply install a lubricator in your air  
compressor line. If your air compressor  
line already has a lubricator, then regular  
lubrication of your nailer will not be neces-  
sary. 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 via air inlet.  
-12-  
H7665 21° Round Head Framing Nailer  
 
H7665 PARTS BREAKDOWN  
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-13-  
H7665 21° Round Head Framing Nailer  
 
H7665 PARTS LIST  
REF PART #  
DESCRIPTION  
REF PART #  
DESCRIPTION  
1
PSB11M  
CAP SCREW M8-1.25 X 16  
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  
85  
86  
87  
88  
89  
90  
91  
92  
93  
94  
95  
PH7665049 DEPTH ADJUSTMENT NUT  
PH7665050 COPPER COLLAR  
PH7665051 SAFETY NOSE CASE  
PH7665052 O-RING 61.5 X 1.8  
PH7665053 DRIVE GUIDE  
2
PH7665002 AIR DEFLECTOR  
PH7665003 DEFLECTOR RUBBER  
PH7665004 COMPRESSION SPRING  
PH7665005 SPRING WIRE  
3
4
5
6
PSB06M  
PLW03M  
CAP SCREW M6-1 X 25  
LOCK WASHER 6MM  
PLW04M  
PSB13M  
PEC16M  
LOCK WASHER 8MM  
CAP SCREW M8-1.25 X 30  
E-CLIP 2.5MM  
7
8
PH7665008 CYLINDER CORE  
P04510421 CAP SCREW M5-.8 X 5  
PH7665010 CYLINDER COVER  
PH7665011 HEAD VALVE PISTON  
PH7665012 SPRING SEAT  
PH7665013 COMPRESSION SPRING  
PH7665014 SPRING WASHER  
PH7665015 COLLAR  
9
PH7665057 PIN  
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  
43  
44  
45  
46  
47  
48  
PSB26M  
PW03M  
CAP SCREW M6-1 X 12  
FLAT WASHER 6MM  
PH7665060 PLATE  
PH7665061 MAGAZINE  
PH7665062 WASHER CASE  
PH7665063 DRIVE NAIL BAR  
PH7665064 SPACER  
PH7665016 O-RING 42.3 X 5  
PH7665017 MAIN PISTON  
PSB125M  
CAP SCREW M3-.5 X 5  
PH7665018 O-RING 57.5 X 3  
PH7665019 O-RING 88 X 3  
PH7665020 FIXED RING  
PH7665066 PUSHER  
PH7665067 TORSION SPRING  
PH7665068 SPRING CORE  
PH7665069 PIN B4 X 25  
PH7665021 SEALING RING  
PH7665022 CYLINDER  
PSB17M  
PW05M  
PN04M  
CAP SCREW M4-.7 X 10  
FLAT WASHER 4MM  
HEX NUT M4-.7  
PH7665023 BUMPER OUTER LANE  
PH7665024 BUMPER  
PH7665025 CYLINDER WASHER  
PH7665026 GUN BODY  
PH7665073 RELEASE LATCH  
PH7665074 LATCH SPRING  
PH7665027 TRIGGER VALVE SEAT  
PH7665028 O-RING 15 X 2.65  
PH7665029 O-RING 17 X 1.5  
PH7665030 TRIGGER VALVE GUIDE  
PH7665031 O-RING 6.2 X 1.8  
PH7665032 O-RING 6.4 X 2  
PH7665033 O-RING 9 X 1.8  
PH7665034 SWITCH SPRING  
PH7665035 SWITCH PIPE  
PSB140M  
CAP SCREW M4-.7 X 45  
PH7665076 SAFETY PIPE  
PH7665077 SAFETY PIPE CASE  
PSB20M  
CAP SCREW M5-.8 X 14  
PH7665079 FIXED SEAT  
PW02M  
PN06M  
PSB38M  
FLAT WASHER 5MM  
HEX NUT M5-.8  
CAP SCREW M5-.8 X 25  
PH7665083 RUBBER HANDLE CASE  
PH7665084 END CAP WASHER  
PH7665085 END CAP  
PH7665036 O-RING 2.5 X 1.5  
PH7665037 O-RING 20.3 X 2.3  
PH7665038 SWITCH SEAT  
PW02M  
FLAT WASHER 5MM  
PRP16M  
ROLL PIN 3 X 25  
PSB15M  
CAP SCREW M5-.8 X 20  
PH7665040 TRIGGER  
PH7665088 AIR PLUG 1/4" NPT MALE  
PH7665089 AIR PLUG DUST CAP  
PH7665090 CARRYING CASE  
PH7665041 SAFETY SPACER  
PRP02M  
ROLL PIN 3 X 16  
PH7665043 SAFETY GUIDE  
PH7665044 COMPRESSION SPRING  
PH7665045 SAFETY YOKE  
PAW03M  
PAW04M  
PAW05M  
PAW06M  
HEX WRENCH 3MM  
HEX WRENCH 4MM  
HEX WRENCH 5MM  
HEX WRENCH 6MM  
PSB03M  
PW02M  
CAP SCREW M5-.8 X 8  
FLAT WASHER 5MM  
PH7665095 PISTON REPAIR KIT*  
PH7665048 SAFETY NOSE  
* ITEM NOT SHOWN ON BREAKDOWN  
-14-  
H7665 21° Round Head Framing Nailer  
 
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 nose  
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 nails  
while discharging.  
1. Air leaks.  
2. Dirt in nose.  
1. Tighten screws and fittings.  
2. Clean nose.  
3. Dirt or damage prevents nails  
from moving freely in maga-  
zine.  
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 is not sufficiently lubri-  
cated.  
2. Broken spring in cap assem-  
bly.  
1. Lubricate nailer.  
2. Replace spring.  
3. Exhaust port in cap is blocked. 3. Clean or replace damaged  
internal parts.  
Fasteners frequent- 1. Nails are the wrong size.  
1. Use correct nails.  
2. Use undamaged, clean  
nails.  
ly jam the nailer.  
2. Nails are bent or dirty.  
3. Magazine or nose screws are  
loose.  
3. Tighten magazine.  
4. Driver or driver guide are worn 4. Replace worn or damaged  
or damaged.  
parts.  
5. Nails are wrong angle.  
5. Use correct angle nails.  
Nailer does not fire. 1. Nail is jammed in magazine or 1. Clear nailer magazine or  
discharge area.  
2. Piston shaft is damaged.  
3. Air pressure too low.  
discharge area.  
2. Replace piston shaft.  
3. Check/increase air pres-  
sure.  
-15-  
H7665 21° Round Head Framing Nailer  
 
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!  
 
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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