Grizzly H7665 User 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
21° ROUND HEAD FRAMING NAILER
MODEL H7665
INSTRUCTION MANUAL

Safety Instructions For Pneumatic Tools
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.
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 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.
Indicates a potentially hazardous situation which, if
not avoided, COULD result in death or serious injury.
Indicates an imminently hazardous situation which, if
not avoided, WILL result in death or serious injury.
This symbol is used to alert the user to useful infor-
mation about proper operation of the equipment.
SAFETY
NOTICE

H7665 21° Round Head Framing Nailer -1-
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.
Safety Instructions For Pneumatic Tools

H7665 21° Round Head Framing Nailer
-2-
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.
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.
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.
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.
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.
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.
9. CHECK VALVE: Do not use a
check valve or any other fitting that
allows air to remain in the tool.

H7665 21° Round Head Framing Nailer -3-
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.
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.
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.

H7665 21° Round Head Framing Nailer
-4-
INTRODUCTION
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.
Grizzly Industrial, Inc.
1203 Lycoming Mall Circle
Muncy, PA 17756
Phone: [phone]
Fax: [phone]
E-Mail: [email protected]
Web Site: http://www.grizzly.com
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.
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.
Foreword Contact Info
Specifications
Nail Type ..................................Roundhead
Nail Angle ..............................................21°
Nail Diameter .................................... 0.113"
Nail Length ......................................2"–31⁄2"
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.

H7665 21° Round Head Framing Nailer -5-
SET UP
Figure 1. Model H7665 inventory.
Unpacking
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 [phone]
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.
Inventory
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
B
C
D
E
A

H7665 21° Round Head Framing Nailer
-6-
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.
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.
Quick
Connector
Quick
Coupler
Air Hose Quick
Coupler
Quick
Connector
Lubricator
Filter
Regulator
Air
Compressor
Your
Tool
Figure 2. Typical filter/lubricator/regulator installation order.
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 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!

H7665 21° Round Head Framing Nailer -7-
Testing the Safety
Nose Mechanism
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.
Before you use your nailer for the first
time, check the safety nose mechanism
to ensure proper function.
To verify that the safety nose is work-
ing correctly:
1. DISCONNECT NAILER FROM THE
AIR SUPPLY!
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.
4. Connect the nailer 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, nails, or other foreign
objects.
— If the nailer does not fire, then the
safety nose mechanism is working
correctly.
— 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.
6. Without depressing the safety nose
against a scrap piece of wood, point
the nailer in a safe direction, and pull
the trigger.
— 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
[phone] for help.
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.

H7665 21° Round Head Framing Nailer
-8-
OPERATIONS
Loading
Figure 3. Sliding magazine back and
engaging the catch.
When replacing nails in your Model
H7665, follow these guidelines:
Type: Round Head
Angle: 21°
Diameter: 0.113"
Length: 2"–31⁄2"
Capacity: 75
To load your nailer:
1. DISCONNECT NAILER FROM THE
AIR SUPPLY!
2. Slide the magazine back, as shown in
Figure 3, until it locks in place.
Figure 4. Loading nails into magazine.
3. Insert a strip of nails, pointed-end
down, into the magazine as shown in
Figure 4.
4. Slide the nails all the way down to the
nose of the nailer.
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.
Magazine
Handle
Magazine
Catch