Grizzly Nail Gun T20644 User Manual

MODEL T20644  
34º ANGLE FINISH NAILER  
INSTRUCTION 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  
 
SAFETY  
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 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  
NOTICE  
information 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 locations,  
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.  
-2-  
T20644 34° Angle Finish Nailer–2½"  
 
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 stretch-  
ing.  
18. DO NOT OVERREACH. Keep  
proper footing/balance at all times.  
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.  
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.  
12. ALWAYSUSESAFETYGLASSES.  
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.  
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.  
13. WEAR APPROVED HEARING  
PROTECTION. Air escaping from  
pneumatic tools can exceed safe  
exposure limits and may cause  
hearing damage with prolonged  
exposure.  
22. NEVER ALLOW UNTRAINED  
USERS TO USE THIS TOOL  
WHILE UNSUPERVISED.  
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.  
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.  
15. MAINTAIN TOOLS WITH CARE.  
Keep tools lubricated and clean  
for best and safest performance.  
Follow instructions for lubricating  
and changing accessories.  
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.  
16. REDUCE  
THE  
RISK  
OF  
UNINTENTIONAL FIRING. Do not  
carry tool with hand on trigger and  
always disconnect from air when  
not in use.  
-3-  
T20644 34° Angle Finish Nailer–2½"  
 
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.  
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.  
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.  
10. COMPRESSED AIR RATING: Do  
not connect the nailer to compressed  
air that exceeds 120 PSI.  
-4-  
T20644 34° Angle Finish Nailer–2½"  
 
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.  
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 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!  
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.  
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.  
-5-  
T20644 34° Angle Finish Nailer–2½"  
 
INTRODUCTION  
Foreword  
Contact Info  
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.  
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  
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.  
Most importantly, we stand behind our  
tools. If you have any service questions or  
parts requests, please call or write us at  
the location listed below.  
Grizzly Industrial, Inc.  
1203 Lycoming Mall Circle  
Muncy, PA 17756  
Phone: (570) 546-9663  
Fax: (800) 438-5901  
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.  
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  
-6-  
T20644 34° Angle Finish Nailer–2½"  
 
SETUP  
Unpacking  
Inventory  
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 (570) 546-9663  
for advice.  
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  
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.  
A
B
C
D
E
Figure 1. Model T20644 inventory.  
-7-  
T20644 34° Angle Finish Nailer–2½"  
 
Compressed Air  
System  
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.  
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!  
An in-line filter/lubricator/regulator unit can  
be installed, as depicted in Figure 2.  
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.  
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  
Connector  
Lubricator  
Regulator  
Your  
Tool  
Air  
Compressor  
Quick  
Coupler  
Quick  
Coupler  
Air Hose  
Filter  
Figure 2. Typical filter/lubricator/regulator installation order.  
-8-  
T20644 34° Angle Finish Nailer–2½"  
 
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 acts as a secondary safety  
device. When the trigger is pressed, the  
nailer will not fire until the safety yoke  
mechanism is depressed.  
— If the nailer does not fire, then the  
safety yoke mechanism is working  
correctly.  
Before you use your nailer for the first  
time, check the safety yoke mechanism to  
ensure proper function. To do this:  
— 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.  
1. DISCONNECT NAILER FROM THE  
AIR SUPPLY!  
— If the nailer fires when the trigger  
is pulled without the safety yoke  
mechanism being depressed, then  
the nailer is not working properly.  
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.  
— If either of these conditions develop  
after you have used your nailer for a  
period of time, check the lubrication  
of these mechanisms.  
4. Connect the nailer to the air supply.  
The safety yoke is  
a
mechanical  
DO NOT attempt to modify or bypass  
the safety yoke mechanism to make  
the nailer fire without pushing the  
safety yoke down.  
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.  
-9-  
T20644 34° Angle Finish Nailer–2½"  
 
OPERATIONS  
To load your nailer:  
Loading  
1. DISCONNECT NAILER FROM THE  
AIR SUPPLY!  
When replacing nails in your Model  
T20644, follow these guidelines:  
2. Insert a nail stick into the T-slot at the  
top of the magazine as shown in Figure  
3.  
Gauge:...................................................15  
Length:........................................ 114" -212  
"
Capacity:................................................80  
Angle: ...................................................34°  
Note: A number of manufacturers' nails  
may fit the Model T20644. However, for  
best performance, we recommend you use  
the following Grizzly nails:  
G6085-G6088, G9545, G6090, G3693-  
G3697.  
Pusher  
Release  
Figure 3. Loading finish nails into nailer.  
3. Slide the nail stick all the way down to  
the nose of the nailer.  
4. Pull the magazine pusher all the way  
back, then let it come forward until it  
rests against the end of the nail stick.  
-10-  
T20644 34° Angle Finish Nailer–2½"  
 
Besides damaging your workpiece,  
deflection can cause injury if your free  
hand is securing the workpiece in the  
location that the nail deflects.  
Operating  
If you have not read the safety instruc-  
tions in this manual, do not operate the  
nailer.  
5. Pull the trigger. If the nail drives into the  
wood far enough, continue with your  
intended operations. If the nail goes  
too far or not far enough, adjust the  
depth adjustment knob described in the  
Adjusting Depth section.  
Before you operate your nailer, place one  
drop of the included oil into the quick con-  
nect fitting where the nailer connects to  
the air supply.  
To operate your nailer:  
Adjusting Depth  
1. Connect the nailer to the air supply.  
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.  
The Model T20644 features a knurled  
adjustment knob (Figure 5) for setting the  
nail depth into the workpiece.  
Rotate this knob to adjust the workpiece.  
To find the correct nail penetration depth,  
use trial-and-error on a scrap workpiece of  
the same type of material as your work.  
3. Depress the safety yoke mechanism on  
your workpiece.  
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 deflec-  
tion.  
Deflection is caused when grain irregu-  
larities, 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 4.  
Figure 5. Depth adjustment knob.  
Figure 4. Example of nail deflection.  
-11-  
T20644 34° Angle Finish Nailer–2½"  
 
3. Flip up the quick release latch located  
on top of the nailer nose assembly, as  
shown in Figure 6.  
Clearing Jammed  
Nails  
All nailers occasionally get jammed.  
To clear a jammed nail from the dis-  
charge area on the Model T20644:  
1. DISCONNECT NAILER FROM THE  
AIR SUPPLY!  
Figure 6. Releasing quick release latch.  
4. Remove the driver guide cover (Figure  
7).  
Always disconnect air from nailer  
whenever clearing a jammed nail!  
Figure 7. Removing driver guide cover.  
5. The jammed nail should now be vis-  
ible; remove it from the discharge area  
with needle nose pliers.  
2. Release the magazine pusher and  
slide the nail stick out of the back of  
the magazine.  
6. Replace the driver guide cover and  
snap the quick release latch back into  
operating position.  
-12-  
T20644 34° Angle Finish Nailer–2½"  
 
6. Open the magazine.  
Replacing Pistons/  
O-Rings  
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.  
Repair pistons are cheap insurance in the  
event that a piston or piston shaft becomes  
worn out.  
8. With a long flathead screwdriver or sim-  
ilarly 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 pushing the pis-  
ton shaft with the screwdriver.)  
The part number for the repair piston for  
this nailer is #PT20644098. To order, call  
Customer Service at (800) 527-4777.  
9. Place a new O-ring on the new piston  
and apply a thin film of the nailer lubri-  
cating oil on the O-ring.  
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.  
Always disconnect air from nailer  
whenever servicing! During mainte-  
nance, a nailer connected to air may  
fire accidentally, causing serious  
personal injury!  
11. After the piston is inserted correctly,  
close the magazine. Replace the top  
cap assembly and tighten the four cap  
screws.  
To replace a piston:  
1. DISCONNECT NAILER FROM THE  
AIR SUPPLY!  
12. For more assistance, or to install a  
complete O-ring set, refer to Parts  
Breakdown on Page 16.  
2. Remove all nails from the magazine.  
3. Remove the four cap screws on the top  
of the nailer, near the exhaust port.  
4. Remove the top cap.  
5. The top of the piston should now be  
visible inside the cylinder, which is  
housed in the head of the nailer.  
-13-  
T20644 34° Angle Finish Nailer–2½"  
 
ACCESSORIES  
H3175—14" NPT Female, Quick Coupler  
G8114—38" x 25 Ft. Air Hose  
H3176—14" NPT Male, Quick Coupler  
H3177—14" NPT Male, Plug  
G8115—38" x 50 Ft. Air Hose  
G8116—38" x 100 Ft. Air Hose  
H3178—14" NPT Female, Plug  
Multi-purpose red rubber air hose is flex-  
ible and abrasion resistant. Rated for 200  
PSI, this air hose has a bursting strength  
of 800 PSI and 14" NPT ends.  
H3175  
H3176  
H3178  
H3177  
Figure 8. 14" NPT air fittings.  
H3258—Filter/Lube/Regulator 38"NPT  
H3259—Filter/Lube/Regulator 12"NPT  
These units are indispensable for prolong-  
ing the lifespan of your air tools. Filter  
keeps water/rust out. Lubricator features  
adjustable automatic lubrication. Regulator  
allows you to control the optimum PSI  
delivery for each air tool. Maximum pres-  
sure for each unit is 150 PSI.  
Figure 10. Red rubber air hose.  
H3275—14" x 25' Recoil Air Hose  
H3275—14" x 50' Recoil Air Hose  
These recoil air hoses are ideal for nail-  
ers and staplers because they are light  
weight and offer maneuverability in tight  
places that is unmatched by rubber hoses.  
Coiled springs protect the ends from kink-  
ing. (Prices are less than you'll spend on  
lunch!)  
H3258  
H3259  
Figure 9. Models H3258 & H3259  
Filter/Lubricator/Regulators.  
Figure 11. Recoil air hose.  
G2820—Pneumatic Tool Oil 8 oz.  
G2821—Pneumatic Tool Oil 1 Pint  
Use the right oil! This pneumatic tool oil  
offers outstanding heat displacement and  
friction reduction without eating away at  
delicate air components like detergent  
motor oils. Stock up with extra bottles to  
avoid costly downtime.  
-14-  
T20644 34° Angle Finish Nailer–2½"  
 
CLEANING & LUBRICATION  
Cleaning  
Lubricating  
Use non-flammable solvent to clean the  
nose assembly of the nailer. Always be  
sure that the nailer is dry before using it  
again.  
Standard 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 12) 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; this may result in leaks and damage  
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 install a lubricator in your air compres-  
sor line. If your air compressor line already  
has a lubricator, then regular lubrication  
of your nailer will not be necessary. Just  
make sure there is always oil in the lubri-  
cator.  
Never clean this tool with gasoline  
or other flammable liquids. Vapors  
in the tool may ignite, causing the  
tool to explode. Ignoring this warning  
may lead to serious personal injury or  
even death!  
Figure 12. Lubricating nailer via air inlet.  
-15-  
T20644 34° Angle Finish Nailer–2½"  
 
PARTS BREAKDOWN  
-16-  
T20644 34° Angle Finish Nailer–2½"  
 
PARTS LIST  
REF PART #  
DESCRIPTION  
REF PART #  
DESCRIPTION  
1
PT20644001 SPECIAL CAP SCREW  
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  
96  
97  
98  
99  
PT20644051 SPACER  
2
PT20644002 AIR DEFLECTOR  
PT20644003 RUBBER WASHER  
PEC09M  
E-CLIP 6MM  
3
PT20644053 COMPRESSION SPRING  
PT20644054 SAFETY NOSE  
4
PSB38M  
PLW01M  
CAP SCREW M5-.8 X 25  
LOCK WASHER 5MM  
5
PT20644055 SAFETY COVER  
6
PT20644006 CYLINDER COVER  
PSS79M SET SCREW M4-.7 x 6  
PSB17M  
PEC01M  
PSB18M  
CAP SCREW M4-.7 x 10  
E-CLIP 3MM  
7
8
PT20644008 COMPRESSION SPRING  
PT20644009 SWITCH VALVE SEAT  
CAP SCREW M4-.7 x 8  
9
PT20644059 FIXED COVER  
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  
49  
50  
PORG030  
PORG045  
O-RING 29.4 X 3.1 G30  
O-RING 44.4 X 3.1 G45  
PLW03M  
PSB02M  
LOCK WASHER 6MM  
CAP SCREW M6-1 x 20  
PT20644012 SWITCH VALVE  
PT20644013 COLLAR  
PT20644062 RUBBER RETAINING RING  
PT20644063 QUICK RELEASE HANDLE  
PT20644064 LATCH  
PORG065  
O-RING 64.4 X 3.1 G65  
PT20644015 FIXED RING  
PT20644016 SEALING WASHER  
PT20644017 CYLINDER  
PT20644065 DRIVER GUIDE COVER  
PRP43M  
ROLL PIN 3 X 22  
PT20644067 PIN  
PORP035  
O-RING 34.7 X 3.5 P35  
PT20644068 DRIVE GUIDE  
PT20644069 SPACER  
PT20644019 PISTON  
PT20644020 BUMPER  
PT20644021 GUIDE  
PSB23M  
PW05M  
CAP SCREW M4-.7 x 12  
FLAT WASHER 4MM  
PT20644022 GASKET  
PT20644072 LOCK SCREW  
PT20644073 MAGAZINE  
PT20644023 GUN BODY  
PT20644024 RUBBER WASHER  
PT20644025 O-RING 15 X 2.65  
PT20644074 FIXED SEAT  
PT20644075 PUSHER SPRING  
PT20644076 PUSHER PIN  
PT20644077 PUSHER SEAT  
PT20644078 SPRING CORE  
PT20644079 TORSION SPRING  
PT20644080 PUSHER  
PORS018  
O-RING 17.5 X 1.5 S18  
PT20644027 TRIGGER VALVE SEAT  
PH7665031 O-RING 6.2 X 1.8  
PH7665032 O-RING 6.4 X 2  
PH7665033 O-RING 9 X 1.8  
PT20644031 TRIGGER VALVE GUIDE  
PH7665036 O-RING 2.5 X 1.5  
PN04M  
HEX NUT M4-.7  
PT20644082 DRIVE NAIL BAR  
PT20644033 SWITCH VALVE SPRING  
PT20644034 SWITCH VALVE STEM  
PH7665037 O-RING 20.3 X 2.3  
PT20644036 TRIGGER VALVE SEAT  
PT20644037 COMPRESSION SPRING  
PSB33M  
PW02M  
CAP SCREW M5-.8 x 12  
FLAT WASHER 5MM  
PT20644085 SUPPORT SEAT  
PFN04M FLANGE NUT M5-.8  
PT20644087 RUBBER HANDLE CASE  
PT20644088 END CAP GASKET  
PT20644089 END CAP  
PRP02M  
ROLL PIN 3 X 16  
PT20644039 SAFETY SPACER  
PT20644040 PIN  
PSB53M  
CAP SCREW M5-.8 x 18  
PT20644041 TRIGGER  
PT20644042 O-RING 1.7 X 2  
PT20644043 SAFETY SEAT  
PT20644091 MALE AIR PLUG 1/4" NPT  
PT20644092 AIR PLUG DUST COVER  
PAW03M  
PAW04M  
PAW05M  
HEX WRENCH 3MM  
HEX WRENCH 4MM  
HEX WRENCH 5MM  
PN04M  
HEX NUT M4-.7  
PT20644045 ADJUSTING NUT  
PT20644046 STEEL BALL 2MM  
PT20644047 COMPRESSION SPRING  
PT20644096 CARRYING CASE  
PT20644097 COMPLETE O-RING KIT  
PT20644098 PISTON REPAIR KIT  
PT20644099 SAFETY GLASSES  
PRP97M  
ROLL PIN 3 X 30  
PT20644049 COMPRESSION SPRING  
PT20644050 DRIVE STAND  
-17-  
T20644 34° Angle Finish Nailer–2½"  
 
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.  
ing are damaged.  
ger valve area.  
Air leaking.  
1. Loose screws in housing.  
2. Damaged O-ring(s).  
3. Loose air fitting.  
1. Tighten screws.  
2. Replace O-ring(s).  
3. Tighten air fitting & use tef-  
lon tape.  
4. Damaged housing gasket(s).  
4. Replace gasket(s).  
Tool skips nails  
while discharging.  
1. Excessive air pressure.  
2. Air leaks.  
3. Dirt in nose.  
1. Reduce air pressure to tool.  
2. Tighten screws and fittings.  
3. Clean nose.  
4. Dirt or damage prevents nails  
from moving freely in maga-  
zine.  
4. Clean magazine and  
inspect/repair damage.  
5. Inadequate air flow to tool.  
5. Check fitting, hose, com-  
pressor & air pressure.  
6. Replace piston O-ring.  
Lubricate.  
6. Worn O-ring on piston or lack  
of lubrication.  
7. Damaged O-rings on trigger  
valve.  
7. Replace trigger valve O-  
rings.  
8. Worn bumper.  
9. Cap seal leaking.  
8. Replace bumper.  
9. Replace cap seal.  
Tool runs slowly  
or has a loss of  
power.  
1. Undersized air hose.  
2. Nailer is not lubricated.  
3. Broken spring in cap assem-  
bly.  
1. Use a larger air hose.  
2. Lubricate nailer.  
3. Replace spring.  
4. Exhaust port in cap is blocked. 4. Clean or replace damaged  
internal parts.  
5. Air pressure too low.  
5. Increase air pressure.  
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. Replace worn or damaged  
parts.  
5. Use correct angle nails.  
4. Driver or driver guide are worn  
or damaged.  
5. Nails are wrong angle.  
Nailer does not fire. 1. Nailer is not lubricated.  
1. Lubricate nailer.  
2. Nail is jammed in magazine or 2. Clear nailer magazine or  
discharge area.  
discharge area.  
3. Piston shaft is damaged.  
4. Air pressure too low.  
3. Replace piston shaft.  
4. Check/increase air pres-  
sure.  
-18-  
T20644 34° Angle Finish Nailer–2½"  
 
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 mainte-  
nance. 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 prod-  
uct 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.  
Thank you again for your business and continued support. We hope to serve you again  
soon!  
 

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