Grizzly T20644 User manual

COPYRIGHT © MARCH, 2008 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.
#TR10583 PRINTED IN CHINA
MODEL T20644
34º ANGLE FINISH NAILER
INSTRUCTION MANUAL

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T20644 34° Angle Finish Nailer–2½"
-2-
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 locations,
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 hazardous
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
information about proper operation of the equipment.
SAFETY
NOTICE

T20644 34° Angle Finish Nailer–2½" -3-
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 stretch-
ing.
11. WEAR PROPER APPAREL. Do
not wear loose clothing, gloves,
neckties, rings, bracelets, or other
jewelry which may get caught in
moving parts. Non-slip footwear is
recommended. Wear a protective
hair covering to contain long hair.
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. Air escaping from
pneumatic tools can exceed safe
exposure limits and may cause
hearing damage with prolonged
exposure.
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 FIRING. Do not
carry tool with hand on trigger 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/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 TOOL. Seek formal training
or research books or magazines
that specialize in pneumatic tools.
24. BE AWARE OF HOSE LOCATION
WHEN USING PNEUMATIC
TOOLS. Hoses can easily become
a tripping hazard when laid across
the floor or spread out in a disorga-
nized fashion.
Safety Instructions For Pneumatic Tools

T20644 34° Angle Finish Nailer–2½"
-4-
Additional Safety Instructions for Nailers
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 con-
nect the nailer to pressurized oxy-
gen or other combustible gases as a
power source. Only use filtered, lubri-
cated, and regulated compressed air.
3. SAFE HANDLING: Never point the
nailer at others! Do not keep the trig-
ger pulled when loading fasteners,
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. MODIFICATIONS: DO NOT modify
this tool or bypass the safety nose
mechanism.
5. CHECK VALVE: Do not use a check
valve or any other fitting that allows
air to remain in the tool.
6. 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 haz-
ard if not kept out of the way.
7. OPERATING QUESTIONS: If you
are not sure about the intended oper-
ation, stop using the nailer. Seek
formal training.
8. 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. MAINTENANCE: Always disconnect
air from the nailer when servicing or
installing nails. During maintenance,
a nailer connected to air may fire acci-
dentally, causing serious personal
injury.
10. COMPRESSED AIR RATING: Do
not connect the nailer to compressed
air that exceeds 120 PSI.

T20644 34° Angle Finish Nailer–2½" -5-
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 85-90 deci-
bels. To protect your hearing, always
wear ANSI approved ear protection
when operating this nailer.
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.
Nailer accidents routinely happen
while moving the gun to another
location, 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 individu-
al working conditions. Use this and
other tools with caution and respect.
Failure to do so could result in seri-
ous personal injury, damage to equip-
ment or poor work results.

T20644 34° Angle Finish Nailer–2½"
-6-
INTRODUCTION
If you have any comments regarding this
manual, please contact us:
Grizzly Industrial, Inc.
C/O Technical Documentation Manager
P.O. Box 2069
Bellingham, WA 98227-2069
Email: [email protected]
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
T20644 34º Angle Finish Nailer–2½". This
model is part of a growing Grizzly family of
fine pneumatic tools. When used accord-
ing to the guidelines set forth in this man-
ual, you can expect years of trouble-free,
enjoyable operation and proof of Grizzly’s
commitment to customer satisfaction.
The specifications, details, and photo-
graphs in this manual represent the Model
T20644 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
Nailer Specifications
Nail Size .....................15 gauge finish nails
Nail Length ....................................1¼"-2½"
Magazine Capacity ................................. 80
Air Inlet ...........................................¼" NPT
Weight ................................................5 lbs.
Operating Pressure .................. 60-100 PSI
Max Operating Pressure ................ 120 PSI
Functional Description
The Model T20644 is designed to toenail
into corners and shoot at any angle. This
nailer is ideal for door, window, exterior,
and decorative trim, cabinet work, and fin-
ish paneling. The Model T20644 features
a 360° exhaust port, comfort grip rubber
handle, economical air consumption with
low noise, narrow nose for tight spots, and
quick jam release mechanism.

T20644 34° Angle Finish Nailer–2½" -7-
SETUP
Your Model T20644 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 ship-
ping company. (Otherwise, filing a claim
can be difficult.) When you are completely
satisfied with the condition of the ship-
ment, inventory the equipment.
After you remove the nailer case from the
box you should find the following.
Model T20644 Inventory (Figure 1)
A. 34° Finish Nailer−2½ ......................... 1
B. Safety Goggles .................................. 1
C. Oil ....................................................... 1
D. Hex Wrench 3, 4, 5mm ............. 1 Each
E. Case ................................................... 1
Figure 1. Model T20644 inventory.
B
C
D
E
A
InventoryUnpacking

T20644 34° Angle Finish Nailer–2½"
-8-
The Model T20644 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 to find the optimum setting
within the specified operating range. Start
by testing the nailer at a low setting, then
increase the air pressure as needed for
satisfactory results.
An in-line filter/lubricator/regulator unit can
be installed, as depicted in Figure 2.
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.
Compressed Air
System
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
nailer and cause it to malfunction. To
reduce your risk of personal injury,
DO NOT allow the air pressure to
exceed the recommended pressure
for this nailer!

T20644 34° Angle Finish Nailer–2½" -9-
Safety Yoke
A safety yoke mechanism on the nose
of the nailer acts as a secondary safety
device. When the trigger is pressed, the
nailer will not fire until the safety yoke
mechanism is depressed.
Before you use your nailer for the first
time, check the safety yoke mechanism to
ensure proper function. To do this:
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
yoke mechanism move up and down
without sticking.
4. Connect the nailer to the air supply.
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.
— If the nailer does not fire, then the
safety yoke 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.
— If the nailer fires when the trigger
is pulled without the safety yoke
mechanism being depressed, then
the nailer is not working properly.
— If either of these conditions develop
after you have used your nailer for a
period of time, check the lubrication
of these mechanisms.
The safety yoke is a mechanical
device that can fail. Never rely on the
safety yoke mechanism as an excuse
to point the nailer at yourself or any
bystanders. Serious injury may occur.
DO NOT attempt to modify or bypass
the safety yoke mechanism to make
the nailer fire without pushing the
safety yoke down.