Grizzly Nail Gun G3690 User Manual

IMPORTS, INC.  
ANGLE FINISH NAILER  
MODEL G3690  
INSTRUCTION MANUAL  
COPYRIGHT © 1995 BY GRIZZLY IMPORTS, INC.  
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE  
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY IMPORTS, INC.  
MARCH, 1995. PRINTED IN USA  
DISCONTINUED MACHINE MANUAL DISCLAIMER  
THE INFORMATION IN THIS MANUAL REPRESENTS THE LAST CONFIGURATION OF THE MACHINE BEFORE IT WAS DISCONTIN-  
UED. MACHINE CONFIGURATIONS MAY HAVE CHANGED AS PRODUCT IMPROVEMENTS WERE INCORPORATED. IF YOU OWN AN  
EARLIER VERSION OF THE MACHINE, THIS MANUAL MAY NOT EXACTLY DEPICT YOUR MACHINE . CONTACT CUSTOMER SERVICE  
IF YOU HAVE ANY QUESTIONS ABOUT DIFFERENCES. PREVIOUS VERSIONS ARE NOT AVAILABLE ONLINE.  
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TABLE OF CONTENTS  
I.  
INTRODUCTION ................................1  
COMMENTARY..................................1  
E. ROUTINE USE ..............................6  
VIII. INSPECTION ......................................8  
IX. MAINTENANCE..................................9  
A. JAMMING........................................9  
B. DAMAGED DRIVER ....................10  
C. O-RINGS AND RE-ASSEMBLY ..10  
D.TESTING AFTER ASSEMBLY ....11  
II.  
III. SAFETY RULES ................................2  
IV. UNPACKING ......................................3  
V.  
AIR......................................................3  
A. AIR PRESSURE ............................3  
B. AIR QUALITY..................................3  
VI. PRE-USE CHECKS............................4  
A. CLEANING......................................4  
B. OILING............................................4  
VII. OPERATIONS ....................................4  
A. LOADING FASTENERS ................4  
B. UNLOADING FASTENERS............5  
C. CONNECTING TO AIR ..................5  
D. TEST FIRING..................................6  
X.  
TROUBLESHOOTING......................11  
XI. WARRANTY AND RETURNS..........12  
XII. CLOSURE ........................................12  
XIII. TOOL DATA ....................................13  
XIV. PARTS DIAGRAM............................14  
XV. PARTS LIST ....................................15  
XVI. INDEX ..............................................16  
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I. INTRODUCTION  
II. COMMENTARY  
The G3690 Angle Finish Nailer is designed for  
driving and setting clipped head finish nails in  
most natural and composite wood materials. It  
is especially suited for cabinetmaking and fas-  
tening trim moldings. The tough, lightweight  
construction offers dependable performance  
while reducing operator fatigue.  
acquainted with the Model G3690 Angle  
Finish Nailer. The time you invest before you  
begin to use this tool will be time well spent.  
Also, read all of the safety procedures. If you  
do not understand them, DO NOT operate this  
tool.  
The specifications, drawings, and pho-  
tographs illustrated in this manual represent  
the Model G3690 as supplied when the man-  
ual was prepared. But owing to Grizzly’s poli-  
cy of continuous improvement, changes to the  
Model G3690 may occur at any time with no  
obligation on the part of Grizzly. Should you  
receive a manual update, please insert it into  
the manual and keep it for reference.  
This nail gun is a part of our complete line of  
nail guns covering most applications. It will  
shoot a variety of finish nails up to 2 1/2" long.  
The ability to shoot longer nails makes it ideal  
for trim applications when applying moldings  
over sheet rock and fastening thicker mold-  
ings to other trim.  
The information in this manual has been  
obtained from sources we believe to be reli-  
able and as up-to-date as possible. We have  
included some important safety measures  
which we believe to be essential to this  
machine’s operation. While most safety mea-  
sures are generally universal, Grizzly reminds  
you that each work environment is different  
and safety rules should be considered as they  
apply to your situation.  
Grizzly is committed to offering top quality  
products and supporting our products through  
customer service and technical documenta-  
tion. The manual you now have represents  
our latest effort to produce the best documen-  
tation possible. If you have any criticisms or  
comments you feel we should pay attention to  
in our next printing, please write us at the  
address below.  
We also believe additional information  
sources are very important to better realize  
the full potential of this tool. Trade journals,  
woodworking magazines, and your local  
library are good places to start.  
Manager, Technical Documentation  
Grizzly Industrial, Inc.  
P.O. Box 2069  
Bellingham, WA 98227  
We have two excellent regional service  
departments at your disposal, should the need  
arise. If you have any service questions or  
parts requests, please call or write us at the  
appropriate location listed below.  
The Model G3690 was specifically designed  
for nailing operations. We strongly emphasize  
that this tool should never be modified and/or  
used for any application other than that for  
which it was designed. Modifications or  
improper use of this tool will void all war-  
ranties. If you are confused about any aspect  
of this tool, DO NOT use it until you have  
resolved any questions you might have.  
Grizzly Industrial, Inc.  
1203 Lycoming Mall Circle  
Muncy, PA 17756  
Phone:(570) 546-9663  
Fax:(800) 438-5901  
Bellingham, WA 98227  
To operate this, or any tool, safely and effi-  
ciently, it is essential to become as familiar  
with its characteristics as possible. Take as  
much time as necessary to become  
G3690 Grizzly Imports, Inc. - 1 -  
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III. SAFETY RULES FOR NAIL GUNS  
1. NEVER leave the gun connected to an air  
14. DO NOT place your free hand or feet  
source when inspecting or maintaining.  
near the gun tip to support the work. If  
you cannot safely support the work with-  
out placing body parts near the gun tip,  
do not use this gun.  
2. The gun must be routinely inspected for  
worn or damaged parts and air leaks. If  
the gun is faulty, it should be removed  
from service and labeled, “DO NOT  
USE.”  
15. DO NOT operate the gun if workpiece is  
between you or someone else and the  
gun. Reposition yourself so you and oth-  
ers are behind the gun.  
3. Make sure the safety nose is functioning  
properly before loading fasteners and the  
magazine spring is set before operating.  
16. ALWAYS wear ANSI approved personal  
protective equipment for your eyes and  
ears while operating this tool. Others  
near your work area must also wear eye  
protection.  
4. DISCONNECT the gun from the air  
source before loading fasteners.  
5. ALWAYS point gun away from yourself  
and others when loading or operating.  
17. All air tools exhaust compressed air. If  
working in an area where dust will  
become airborne due to exhausted air,  
WEAR RESPIRATORY PROTECTION.  
6. DISCONNECT gun from the air source if  
gun jams or when performing other main-  
tenance inspections.  
18. Use only clean, dry, regulated, com-  
pressed air. DO NOT connect this air tool  
to any pressurized gas other than com-  
pressed air.  
7. DO NOT connect gun to the air hose until  
you are in position and ready to operate  
the gun safely.  
8. BE AWARE of others in your work area.  
NEVER shoot the gun if others are in  
your line of fire.  
19. Air compressors must comply with ANSI  
B 19.3 - 1981 (U.S.), “Safety Standard for  
Compressors for Process Industries.”  
9. KEEP HANDS AND OTHER BODY  
PARTS AWAY FROM THE GUN TIP AT  
ALL TIMES.  
20. DO NOT operate at a pressure higher  
than 120 PSI.  
21. NEVER use this gun for fastening alu-  
minum, brass, metal, plastics, or any  
other like material.  
10. NEVER manually depress the safety  
nose and shoot fasteners for any reason.  
11. NEVER leave a pressurized gun unat-  
tended, especially when children are pre-  
sent. Disconnect gun from the air source,  
remove fasteners, and put the gun out of  
reach.  
22. Air hose must be rated as having a mini-  
mum working pressure of 150 psig or  
150% of the maximum pressure pro-  
duced in the line, whichever is greater.  
Inspect air hoses frequently.  
12. DO NOT rest a pressurized gun against  
your body for any reason.  
13. DO NOT carry gun with your finger on the  
trigger. Gun will fire if safety nose is acci-  
dentally depressed.  
- 2 - Grizzly Imports, Inc. G3690  
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IV. UNPACKING  
V. AIR  
Carefully remove the items packed in the car-  
ton. It may be a good idea to save the carton  
and packing material in case it might be need-  
ed in the future. Upon removal of all items  
from the package, you should have:  
A. AIR PRESSURE  
Air pressure should be set at the minimum  
required to set the fastener and must not  
exceed 120 p.s.i. Follow all safety items  
above and see Section V.B. Consistently  
operating at unnecessarily high pressures will  
put excessive stress on internal parts which  
will lead to premature gun failure.  
1. Nail Gun  
2. Allen Head Wrench  
3. Oil Bottle  
4. Safety Goggles  
B. AIR QUALITY  
This air gun must be regularly oiled and oper-  
ated with treated or clean air. It is a precision  
tool with close internal tolerances designed for  
repetitious use. Wet and dirty air will negative-  
ly affect the gun’s performance as well as pre-  
maturely destroy internal parts.  
Trigger  
To ensure that the best quality air enters  
your nail gun:  
1. Use an in-line system to automatically oil,  
filter, and dry compressed air. Grizzly  
offers an in-line regulator / filter / water-  
separator / lubricator (G2304). Please  
refer to our catalog for price and ordering  
information.  
Magazine  
Safety nose  
Figure 1 shows the front side of the nail gun.  
2. The intake air filter on your compressor  
must be clean and operational.  
Periodically clean or replace this filter. It  
is your primary line of defense.  
Air Nozzle  
3. Drain the compressor air storage tank(s)  
often. If conditions are humid, drain up to  
several times daily. Water vapor will con-  
dense and accumulate in the bottom of  
the storage tank(s). The internal metal  
parts of the nail gun will be corroded by  
the moisture that is passed through the  
air supply hose.  
4. Keep air hoses as clean as possible inter-  
nally. Inspect nipples and couplers for  
any dirt and moisture. Blow out prior to  
connecting the gun.  
Figure 2 shows the back side of the nail gun.  
G3690 Grizzly Imports, Inc. - 3 -  
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VI. PRE-USE CHECKS  
VII. OPERATIONS  
A. CLEANING  
A. LOADING FASTENERS  
Keep the gun nose as clean as possible. Dirt  
and debris have a tendency to work their way  
into the gun from the nose. Wipe off any dirt  
that collects on the outside of the gun before  
connecting it to the air supply.  
To load the gun:  
1. Disconnect the air hose if connected.  
2. Slide the nails into the magazine through  
the rear slot. Figure 3.  
B. OILING  
3. Pull the spring handle back behind the  
last nail and let it go slowly. It will press  
against the nails. Figure 4.  
Keep the gun oiled. Use special pneumatic  
tool oil to keep internal parts well lubricated.  
This tool oil is available through the Grizzly  
Catalog (G2820).  
If your air supply is not pre-lubricated, you  
must add 2 drops of oil directly into the air  
nozzle at the rear of the gun each time the  
magazine is loaded. NEVER USE any oil that  
will corrode the rubber O-ring seals such as  
detergent oils or oils that are used as sol-  
vents. Avoid over-oiling.  
With these points in mind, you can operate  
your nail gun under the best possible condi-  
tions for increased dependability and low  
overall cost of operation.  
Figure 3 shows how to slide the nails in through the  
IMPORTANT: When you first pick up an air  
activated nail gun, ALWAYS ASSUME THAT  
IT IS LOADED. Inspect for any nails before  
connecting it to the air hose. Do not connect  
the air supply until you are in position and  
ready to operate the gun.  
nail slot.  
Figure 4 shows pulling back the spring handle to  
secure the nails and add pressure.  
- 4 - Grizzly Imports, Inc. G3690  
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VII. OPERATIONS  
B. UNLOADING FASTENERS  
C. CONNECTING TO AIR  
Fasteners should be removed each time  
you finish using the gun.  
To connect the air hose to the air nozzle at  
the rear of the gun:  
To unload the gun:  
1. Pull back on the female hose connector  
sleeve.  
1. Disconnect the air hose if still connect-  
ed.  
2. Press the fitting onto the nail gun air noz-  
zle and release the sleeve. The female  
fitting will lock onto the male gun fitting.  
2. Press the button inside the spring handle  
finger hole. Figure 5. Guide the spring  
handle to the front of the gun. DO NOT  
LET THE SPRING HANDLE SNAP  
BACK TO ITS RESTING POSITION!  
3. Listen for any air leaks. If no leaks are  
detected, you are ready to test fire the  
gun.  
3. Press down on the nail stop and slide the  
nails out through the nail slot. Figure 6.  
Always disconnect the air supply when the  
gun is not in use because (1) a pressurized  
gun is dangerous and (2) constant pres-  
sure will reduce the life of the O-rings  
inside the gun.  
Nail Stop  
Prior to operating this nail gun, ensure that all  
safety procedures are read and understood.  
This tool is very simple to use and effectively  
speeds production. However, ease of use and  
routine production work may invite accidents.  
Please practice safe work habits at all times  
and always wear ANSI approved safety equip-  
ment.  
Spring Handle  
Spring Handle Button  
Figure 5 shows a closeup of the spring handle button.  
Press to release pressure.  
Nail Stop  
Spring Handle  
Figure 6 shows pressing down on the safety stop and  
sliding the nails out.  
G3690 Grizzly Imports, Inc. - 5 -  
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VII. OPERATIONS  
D. TEST FIRING  
E. ROUTINE USE  
Whenever changing fastener size or composi-  
tion of material being fastened, the gun should  
be tested to ensure that the air pressure is set  
correctly and the gun is working properly.  
To operate the nail gun under routine con-  
ditions, always wear safety glasses and:  
1. Line up the gun nose with the area on the  
workpiece you intend to fasten.  
To test fire the gun, wear safety glasses  
and follow the steps below:  
2. Hold the gun straight and perpendicular  
to the work surface.  
1. Select a sample workpiece similar in  
composition to the type of material you  
will be fastening.  
3. Firmly press safety nose against the  
workpiece so that the gun nose rests on  
the workpiece.  
2. Firmly press the safety nose down  
against the sample piece.  
4. Pull trigger.  
3. Pull trigger.  
DO NOT DROP GUN. Repeated dropping will  
result in misalignment of the nose and jam-  
ming or breakage could occur. This is a preci-  
sion tool, not a hammer.  
4. Inspect your results. If the nail is set too  
far into the workpiece, reduce the regu-  
lated air pressure. If the nail is not set or  
protrudes above the work surface,  
increase the air pressure. However, do  
not exceed the maximum air pressure  
recommended for the gun or the hose  
(120 p.s.i. for the gun).  
This gun can also be continuously fired by  
holding down on the trigger and firmly press-  
ing the safety nose against the workpiece  
each time you wish to shoot a fastener.  
However, due to the inherent instability  
and danger involved with that practice, we  
strongly recommend against it.  
5. Disconnect the air hose from the gun  
when finished.  
DO NOT FORGET TO DISCONNECT AIR  
SUPPLY AND UNLOAD FASTENERS  
WHEN FINISHED USING THE GUN.  
6. Unload fasteners. See Section VII.B.  
- 6 - Grizzly Imports, Inc. G3690  
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VII. OPERATIONS  
E. ROUTINE USE (CONT’D)  
Figure 7 shows using the gun  
for a horizontal application.  
Figure 8 shows using the gun  
for a vertical application.  
Caution: If the gun nose is positioned too  
near the edge of the workpiece or is not held  
straight, there is a chance that the fastener  
will either split the workpiece or be deflected.  
Do not hold the gun so that exhausted air is  
blown into your face or someone else’s face.  
Exhausted air will cause any dust near the  
operating gun to become airborne; use a res-  
pirator if using the gun in a dusty environment.  
Caution: Compressed air is exhausted out of  
the top, front of the gun and is directed down  
toward the gun nose.  
G3690 Grizzly Imports, Inc. - 7 -  
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VIII. INSPECTION  
WARNING: All inspections and/or any main-  
tenance is to be performed with the air supply  
disconnected from the tool.  
Inspect and maintain the following items  
daily:  
5. Inspect air hoses and fittings for wear and  
1. Check the air gun for any loose bolts or  
air leaks. Loose bolts should be retight-  
ened. Make sure that all lock washers are  
in place. Air leaks are an indication that  
internal seals are worn and should be  
replaced.  
tear and replace if necessary.  
6. Inspect the air compressor to ensure that  
it is operating properly. Follow the manu-  
facturer’s recommended maintenance  
schedule.  
2. Make sure the safety nose and trigger are  
functioning properly. Repair as neces-  
sary. Do not use the gun with a broken or  
modified safety nose.  
7. Inspect the automatic lubricating system  
if applicable and fill as required. Inspect  
the in-line air and water filters if applica-  
ble and change or clean as necessary.  
3. The air gun should be kept clean. Wipe  
8. Inspect the compressor regulator and/or  
in-line regulator to ensure that they are  
set correctly. Adjust accordingly.  
off with a clean cloth daily.  
4. If there is any mechanical problem with  
the tool, it must be taken out of service  
and repaired. If waiting for parts or repair,  
the tool must be tagged “do not use” and  
removed from the work area.  
9. Oil regularly. See Section VI.B.  
- 8 - Grizzly Imports, Inc. G3690  
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IX. MAINTENANCE  
Maintenance requirements are minimal for  
this nail gun. The two most common problems  
with any nail gun are jamming and damaged  
drivers. In both cases, the gun will need to be  
partially diassembled to make the repairs.  
A. JAMMING  
To repair a jam:  
1. Disconnect gun from the air supply.  
The third most common problem is replacing  
worn out O-rings. This is quite easily done, but  
extensive disassembly will be required. We  
suggest consulting with the Grizzly service  
staff for special instructions if needed. Grizzly  
has replacement parts and a special O-ring  
rebuilding kit available for this tool. Please call  
or write the appropriate service location listed  
on page one of this manual for prices and  
ordering information.  
2. Remove any fasteners remaining in the  
gun.  
3. Open the nose by unlocking the safety  
clip.  
4. Using needle nose pliers, remove any  
bent fasteners lodged in the gun nose.  
5. Close the nose and re-lock the safety  
clip.  
Again, if repairs become necessary that are  
beyond the scope of this manual, do not hes-  
itate to call or write the appropriate service  
location.  
6. Re-load fasteners and connect nail gun  
to the air supply.  
7. Make sure the safety nose is functioning  
correctly and that it slides freely in its  
guide. Test fire into a sample piece after  
following all operational and safety proce-  
dures discussed earlier.  
If jamming persists, make sure you are using  
fasteners within the size range of this gun. If  
jamming is due to worn or broken parts, repair  
or replace them before placing the gun back  
into service. For example, a worn or damaged  
driver may cause jamming. If the driver tip is  
worn, you may be able to recondition the tip  
by filing it square again. In any event, you  
must remove the damaged driver from the  
gun. See Section IX.B.  
Figure 9 shows the safety clip that keeps the nose of  
the gun closed.  
Figure 10 shows the nose open and the jammed nail  
exposed. Remove with needle nose pliers.  
G3690 Grizzly Imports, Inc. - 9 -  
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IX. MAINTENANCE  
B. DAMAGED DRIVER  
To remove the driver:  
C. O-RINGS AND RE-ASSEMBLY  
Since the gun is disassembled, inspect the  
condition of the visible O-rings. If the O-rings  
show signs of wear and tear, they should be  
replaced. Inspect the surfaces where the O-  
rings seal for any possible rough spots which  
will erode the new O-rings. When replacing  
the O-rings, make sure that there is no dirt or  
grit in the groove where the O-rings seat. Do  
not stretch the O-rings or nick them on any  
sharp edges or burrs. If cleaning parts with a  
solvent, do not use a solvent that may deteri-  
orate the O-rings.  
1. Disconnect gun from the air supply and  
remove any fasteners from the maga-  
zine.  
2. Loosen the 4 cap screws securing the  
gun cap to the gun body sequentially.  
3. Remove the four cap screws and the gun  
cap and place them to one side.  
4. With your fingers, reach into the air cylin-  
der, grasp the main piston, and pull out  
the driver.  
To re-assemble the gun:  
1. Before replacing O-rings, lubricate them  
with a light grease that is non corrosive to  
rubber.  
5. Inspect driver condition and repair or  
replace as necessary. Replacement dri-  
vers are sold pre-attached to the main  
piston and are referred to as the “com-  
plete driver unit”.  
2. IMPORTANT: Carefully position the dri-  
ver tip into the plastic driver insert from  
the top of the nail gun. You may have to  
wiggle the driver so the main piston seats  
into the cylinder. The driver has a T-  
shaped cross section and will only fit one  
way. If the driver is not seating, do not  
force it. Remove the driver unit, rotate  
180°, and try to reinstall it.  
Air Cylinder  
Gun Cap  
3. Replace the cap on top of the gun.  
Tighten the cap screws sequentially. If  
the cap screws are not tightened even-  
ly, the cap will not seat correctly, air  
will leak, and the gun will not function.  
Ensure that the washers are installed  
under the cap screw heads.  
Cap Screws  
Driver  
Main Piston  
Figure 11 shows the gun partially disassembled to  
4. Re-check all bolts to make sure they are  
tight and test the gun to ensure that it  
works properly. See the following para-  
graph.  
repair or replace the driver.  
NOTE: Before putting the gun back together,  
read through Section IX.C.  
- 10 - Grizzly Imports, Inc. G3690  
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IX. MAINTENANCE  
X. TROUBLESHOOTING  
This section covers some other potential prob-  
lems and possible causes. If you have taken  
the gun apart before, as in the above section,  
you will realize that most problems can be  
repaired on the job site with a few basic parts.  
If you are heavily dependent upon this tool for  
production work, it makes good sense to have  
an O-ring repair kit and a complete driver unit  
on hand just in case a problem does develop.  
D. TESTING AFTER ASSEMBLY  
To initially test the gun after a repair pro-  
cedure:  
1. Put on your safety glasses, reduce the  
regulated air pressure to 30 PSI. Do not  
put any fasteners into the magazine.  
Connect the air hose.  
The following list describes some potential  
problems and solutions.  
NOTE: It is important to reduce the ini-  
tial test pressure so that damage to  
the gun does not occur when firing  
without any fasteners in the magazine.  
1. LEAKS: A leak can usually be fixed by  
simply loosening and retightening the  
cap screws on the gun cap symmetri-  
cally or providing more lubricant to  
the O-rings.  
2. Check for any leaking air. You will hear it  
hissing or feel it rushing through the  
spaces.  
2. If the driver does not return to its starting  
position, then the main piston O-ring may  
be worn or broken.  
3. If everything sounds normal, press the  
safety nose down on a piece of wood and  
pull the trigger a couple of times. Air  
should be exhausted normally each time.  
3. If air constantly leaks at the exhaust port,  
then the head valve piston O-ring may be  
worn or broken.  
4. Disconnect the air hose. Adjust the regu-  
lated air pressure back up to the mini-  
mum required to set your fasteners. Load  
the magazine with recommended fasten-  
ers.  
4. If air constantly leaks at the trigger, then  
the trigger system O-rings may be worn  
or broken.  
5. If the gun misfires or over-drives the fas-  
tener into the workpiece without manual-  
ly changing the air pressure, then the  
bumper may be worn or broken.  
5. Re-connect the nail gun to the air supply.  
6. Press the safety nose on a suitable test  
material and pull the trigger. If the gun is  
still not working properly, re-check your  
repair procedure or call the appropriate  
service location for advice.  
6. If the wrong type of oil has been used for  
lubrication, O-rings may swell and dis-  
lodge from their grooves. This could  
cause leaks anywhere in the gun.  
See Section VII.D and VII.E. for more infor-  
mation about testing and routine use.  
Again, if you have a problem and would like  
assistance, please call the appropriate service  
department. They will be glad to assist you.  
G3690 Grizzly Imports, Inc. - 11 -  
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XI. WARRANTY AND  
RETURNS  
XII. CLOSURE  
The following pages contain general machine  
specifications, a parts diagram and list, and  
index for your Model G3690 Nail Gun.  
LIMITED WARRANTY  
Grizzly Imports, Inc. warrants every product it  
sells for a period of 1 year to the original pur-  
chaser from the date of purchase. This war-  
ranty does not apply to defects due directly or  
indirectly to misuse, abuse, negligence, acci-  
dents, 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 here-  
by limited to the duration of this written war-  
ranty. 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.  
If you need parts or help in assembling your  
machine, or if you need operational informa-  
tion, we encourage you to call the appropriate  
Regional Service Department. Our highly  
trained service technicians will be glad to help  
you.  
If you have any comments or concerns deal-  
ing specifically with this manual, please write  
to our Bellingham, Washington location using  
the address listed in the Introduction.  
We shall in no event be liable for death,  
injuries to persons or property or for inciden-  
tal, contingent, special, or consequential dam-  
ages 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 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 mer-  
chandise.  
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 dura-  
bility standards and we hope you never need  
to use this warranty.  
- 12 - Grizzly Imports, Inc. G3690  
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XIII. TOOL DATA  
GRIZZLY MODEL G3690 ANGLE FINISH NAILER  
Operating Air Pressure:  
Softwood:..........................................................................................................80 to 100 PSI  
Maximum Air Pressure................................................................................................120 PSI  
Hardwood: ........................................................................................................90 to 120 PSI  
Maximum Air Pressure................................................................................................120 PSI  
Nail Length: ........................................................................1-1/2" to 2-1/2" Clipped Head Finish Nails  
Nail Gauge:............................................................................................................................14 or 15  
Magazine Capacity:............................................................................100 @15 Ga. or 90 @ 14 Ga.  
Construction:............................................................................Cast Aluminum and Hardened Steel  
Coupling System:..................................................................................................................1/4" NPT  
Recommended Lubricating Oil: ........................................................................Pneumatic Tool Oil  
Gun Weight: ..........................................................................................................................5.95 lbs.  
Parts and Accessories:  
A rebuilding kit is available from Grizzly and includes all O-rings. The rebuilding kit and other  
parts can be individually ordered through the appropriate service department.  
Grizzly also carries an air hose, an in-line regulator/filter/water-separator/lubricator, quick con-  
nect couplers, and a complete line of fasteners for this gun. Please refer to a current Grizzly cat-  
alog for price and ordering information.  
Specifications, while deemed accurate, are not guaranteed.  
G3690 Grizzly Imports, Inc. - 13 -  
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XIV. PARTS DIAGRAM  
- 14 - Grizzly Imports, Inc. G3690  
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XV. PARTS LIST  
DESCRIPTION  
REF# PART#  
DESCRIPTION  
REF# PART#  
101 PSB06M  
102 PLW03M  
103 P3690101  
104 PSS07M  
105 P3690105  
106 P3690106  
107 P3690107  
108 P3690108  
109 P3690109  
110 P3690110  
111 P3690111  
112 P3690112  
113 P3690113  
114 P3690114  
CAP SCREW M6 - 1.0 x 25  
LOCK WASHER 6mm  
CAP  
305 PSB15M  
306 G2308  
CAP SCREW M5 - 0.8 x 20  
QUICK CONNECT 1/4" NPT  
DRIVER GUIDE  
401 P3690401  
402 P3690402  
403 PLW03M  
404 PSB06M  
405 PLN01M  
406 P3690406  
407 PRP16M  
408 P3690408  
409 PN04M  
SETSCREW M5 - 0.8 x 5  
GASKET  
DRIVER GUIDE COVER B  
LOCK WASHER 6mm  
CAP SCREW M6 - 1.0 x 25  
LOCK NUT M4 - 0.7  
SAFETY GUIDE  
SEAL  
SPRING  
O-RING  
O-RING  
ROLL PIN 3 x 25  
VALVE PISTON  
COLLAR  
SAFETY DRIVER  
HEX NUT M4 - 0.7  
SAFETY  
O-RING  
410 P3690410  
411 P3690411  
412 P3690412  
413 PSB33M  
414 P3690414  
415 P3690415  
416 P3690416  
417 P3690417  
418 P3690418  
420 PSB03M  
421 P3690421  
422 P3690422  
423 PLN02M  
424 P3690424  
425 P3690425  
426 P3690426  
427 PLN01M  
428 P3690428  
429 PLN01M  
430 PLW02M  
431 PSB18M  
432 PSB23M  
433 PW02M  
MAIN PISTON  
DRIVER  
SPRING  
DRIVER GUIDE COVER A  
CAP SCREW M5 - 0.8 x 12  
MAGAZINE  
114A P3690114A COMPLETE DRIVER UNIT  
115 P3690115  
116 P3690116  
117 P3690117  
118 P3690118  
119 P3690119  
120 P3690120  
121 P3690121  
122 P3690122  
123 P3690123  
124 PLW03M  
125 PSB02M  
126 P3690126  
201 P3690201  
202 P3690202  
203 P3690203  
204 P3690204  
205 P3690205  
206 P3690206  
207 P3690207  
208 P3690208  
209 P3690209  
210 P3690210  
211 P3690211  
212 P3690212  
213 P3690213  
214 P3690214  
215 PRP02M  
216 PRP16M  
301 P3690301  
302 P3690302  
303 P3690303  
304 PLW01M  
O-RING  
CYLINDER  
STEEL CHANNEL  
CYLINDER RING  
BUMPER  
PUSHER  
NYLON ROLLER  
CYLINDER SPACER  
O-RING  
SPRING  
CAP SCREW M5 - 0.8 x 8  
PIN EJECT EXTERNAL HANDLE  
STEEL PIN  
GASKET  
DRIVER GUIDE  
BASE  
LOCK NUT M5 - 0.8  
STOP PLATE  
LOCK WASHER 6mm  
CAP SCREW M6 - 1.0 x 20  
CYLINDER PRESS RING  
O-RING  
MOUNTING BRACKET  
BUTTON HD SCRW M4 - 0.7 x 10  
LOCK NUT M4 - 0.7  
PROTECTING COVER  
LOCK NUT M4 - 0.7  
LOCK WASHER 4mm  
CAP SCREW M4 - 0.7 x 8  
CAP SCREW M4 - 0.7 x 12  
FLAT WASHER 5mm  
CAP SCREW M5 - 0.8 x 18  
LOCK NUT M5 - 0.8  
BUTTON HD SCRW M4 - 0.7 x 8  
LOCK NUT M4 - 0.7  
ROLL PIN 3 x 34  
VALVE  
O-RING  
O-RING  
O-RING  
VALVE PLUNGER  
O-RING  
SPRING  
434 PSB53M  
435 PLN01M  
436 P3690436  
437 PLN02M  
438 PRP42M  
439 PLW02M  
440 P3690440  
441 PLW01M  
442 P3690442  
443 P3690443  
444 PRP43M  
445 PRP44M  
446 PRP02M  
PLUNGER  
O-RING  
PLUNGER CAP  
O-RING  
SECONDARY TRIGGER  
TRIGGER  
LOCK WASHER 4mm  
RUBBER FOOT  
ROLL PIN 3 x 16  
ROLL PIN 3 x 25  
GUN BODY  
LOCK WASHER 5mm  
SPRING  
LOCK HANDLE UNIT  
ROLL PIN 3 x 22  
GASKET  
END CAP  
ROLL PIN 3 x 10  
LOCK WASHER 5mm  
ROLL PIN 3 x 16  
G3690 Grizzly Imports, Inc. - 15 -  
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XVI. INDEX  
A
S
Addresses....................................................1  
Air Pressure ................................................3  
Air Quality ....................................................3  
Safety Rules for Nail Guns..........................2  
Spring Handle..............................................5  
T
C
Test Firing....................................................6  
Testing after Assembly..............................11  
Tool Data ..................................................13  
Troubleshooting ........................................11  
Clean Air Hoses ..........................................3  
Cleaning ......................................................4  
Closure ......................................................12  
Commentary ................................................1  
Connecting to Air ........................................5  
U
Unloading Fasteners....................................5  
Unpacking....................................................3  
D
Damaged Driver ........................................10  
V
F
Vertical Nailing ............................................7  
Fax Numbers ..............................................1  
W
H
Warranty and Returns ..............................12  
Horizontal Nailing ........................................7  
Humid Air ....................................................3  
FIGURES  
I
Inspection ....................................................8  
Introduction..................................................1  
Items List ....................................................3  
Figure 1 shows the front side of the nail gun.  
....................................................................3  
Figure 2 shows the back side of the nail gun.  
....................................................................3  
Figure 3 shows how to slide the nails in  
J
Jamming ......................................................9  
through the nail slot. ....................................4  
Figure 4 shows pulling back the spring han-  
dle to secure the nails and add pressure. ..4  
Figure 5 shows a closeup of the spring han-  
dle button. Press to release pressure. ........5  
Figure 6 shows pressing down on the safety  
stop and sliding the nails out.......................5  
Figure 7 shows using the gun for a horizon-  
tal application...............................................6  
Figure 8 shows using the gun for a vertical  
application. ..................................................7  
Figure 9 shows the safety clip that keeps the  
nose of the gun closed. ..............................9  
Figure 10 shows the nose open and the  
jammed nail exposed...................................9  
Figure 11 shows the gun partially disassem-  
bled to repair or replace the driver. ..........10  
L
Loading Fasteners ......................................4  
M
Maintenance ..........................................9-11  
O
Oiling............................................................4  
Operations................................................4-7  
O-rings ........................................................4  
O-rings and Re-assembly..........................10  
P
Parts Diagram............................................14  
Parts List....................................................14  
Phone Numbers ..........................................1  
Pneumatic Tool Oil ......................................4  
Pre-Use Checks ..........................................4  
R
Removing the Driver..................................10  
Routine Use..............................................6-7  
- 16 - Grizzly Imports, Inc. G3690  
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