Grizzly H6146 User manual

COPYRIGHT © FEBRUARY, 2005 BY GRIZZLY INDUSTRIAL, INC.
REVISED DECEMBER, 2017 (HE)
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#BL6906 PRINTED IN CHINA
34°CLIPPED HEAD
FRAMING NAILER
MODEL H6146
INSTRUCTION MANUAL

SECTION 1: SAFETY
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 an imminent 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 infor-
mation about proper operation of the equipment.
NOTICE
Safety Instructions for Pneumatic Tools
KEEP ALL SAFETY DEVICES IN PLACE
and in working order.
REMOVE ADJUSTING KEYS AND
WRENCHES. Form habit of checking to
see that keys and adjusting wrenches are
removed from tool before operation.
KEEP WORK AREA CLEAN. Cluttered
areas and benches invite accidents.
DO NOT USE IN DANGEROUS
ENVIRONMENT. Do not use pneumatic
tools in damp or wet locations, or where
any flammable or noxious fumes may
exist. Keep work area well lighted.
KEEP CHILDREN AND VISITORS
AWAY. All children and visitors should be
kept at a safe distance from work area.
MAKE WORKSHOP CHILD PROOF by
locking the shop and shutting off air
valves.
DO NOT FORCE TOOL. It will do the job
better and safer at the rate for which it was
designed.
USE THE RIGHT TOOL. Do not force tool
or attachment to do a job for which it was
not designed.
DO NOT USE UNDER INFLUENCE OF
DRUGS OR ALCOHOL.

H6146 34° Clipped Head Framing Nailer -1-
USE PROPER AIR HOSE for the tool.
Make sure your air hose is in good condi-
tion and is long enough to reach your work
area without stretching.
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.
ALWAYS USE SAFETY GLASSES. Also
use a face or dust mask if operation is
dusty. Everyday eyeglasses only have
impact resistant lenses, they are NOT
safety glasses.
WEAR APPROVED HEARING
PROTECTION. Air escaping from pneu-
matic tools can exceed safe exposure
limits and may cause hearing damage
with prolonged exposure.
AWKWARD POSITIONS. Keep proper
footing and balance at all times when
operating tool. Do not overreach! Avoid
awkward hand positions that make work-
piece control difficult or increase the risk
of accidental injury.
REDUCE THE RISK OF
UNINTENTIONAL FIRING. Do not carry
tool with hand on trigger and always dis-
connect from air when not in use.
CHECK FOR DAMAGED PARTS.
Regularly inspect tool for any con-
dition that may affect safe operation.
Immediately repair or replace damaged or
mis-adjusted parts before operating tool.
DISCONNECT TOOLS before servic-
ing, changing accessories, or moving to
another location.
USE RECOMMENDED ACCESSORIES.
Consult this owner’s manual or the manu-
facturer for recommended accessories.
Using improper accessories will increase
the risk of serious injury.
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.
NEVER ALLOW UNTRAINED
USERS TO USE THIS TOOL WHILE
UNSUPERVISED.
IF YOU ARE UNSURE OF THE
INTENDED OPERATION, STOP USING
TOOL. Seek formal training or research
books or magazines that specialize in
pneumatic tools.
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.
SECURE WORK. When required, use
clamps or vises to secure workpiece. A
secured workpiece protects hands and
frees both of them to operate the tool.
MAINTAIN TOOLS WITH CARE. Keep
tools lubricated and clean for best and
safest performance. Follow instructions
for lubricating and changing accessories.
Safety Instructions for Pneumatic Tools

H6146 34° Clipped Head Framing Nailer
-2-
Additional Safety Instructions for Nailers/
Staplers
1. HAND INJURIES: Do not place
your hands near the nail/staple point
of entry. A nail/staple can deflect
and tear through the surface of the
workpiece, puncturing your hand or
fingers.
2. COMBUSTIBLE GASES: Never con-
nect the nailer/stapler to pressurized
oxygen or other combustible gases
as an air source. Only use filtered,
lubricated, and regulated compressed
air.
3. SAFE HANDLING: Never point the
nailer/stapler at others! Do not keep
the trigger pulled when loading fas-
teners, carrying, or holding tool. Carry
the tool only by the handle, never by
any other part. Do not carry the tool
by the air hose. Disconnect the nailer/
stapler from the air hose when going
up and down ladders.
4. MODIFICATIONS: DO NOT modify
this tool or bypass the safety nose
mechanism.
5. COMPRESSED AIR RATING: Do
not connect the nailer/stapler to com-
pressed air that exceeds 120 PSI.
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.
7. OPERATING QUESTIONS: If you
are not sure about the intended oper-
ation, stop using the nailer/stapler.
Seek formal training.
8. CLEANING: Never use gasoline or
other flammable liquids to clean the
nailer; vapors in the nailer/stapler
will ignite by a spark and cause it to
explode.
9. MAINTENANCE: Always disconnect
air from the nailer/stapler when ser-
vicing or installing nails. During main-
tenance, a nailer/stapler connected
to air may fire accidentally, causing
serious personal injury.
4. CHECK VALVE: Do not use a check
valve or any other fitting that allows
air to remain in the tool after it is dis-
connected from the air source.

H6146 34° Clipped 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 85-90 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.
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.

H6146 34° Clipped Head Framing Nailer
-4-
INTRODUCTION
Foreword Contact Info
Machine Data
Nail Size ................7⁄64"-1⁄8" Shank Diameter
Nail Strip Angle ...................................... 34º
Nail Length .......... 2"-3½"(Clipped Headed)
Magazine Capacity ...................... 100 Nails
Air Inlet ...........................................¼" NPT
Weight .............................................81⁄3 lbs.
Operating Pressure .................. 70-120 PSI
We stand behind our machines. If you
have any service questions, parts requests
or general questions about the machine,
please call or write us at the location listed
below.
Grizzly Technical Support
1815 W. Battlefield
Springfield, MO 65807
Phone: [phone]
E-Mail: [e-mail]
We want your feedback on this manual.
If you can take the time, please email or
write to us at the address below and tell
us how we did:
Grizzly Industrial, Inc.
C/O Technical Documentation Manager
P.O. Box 2069
Bellingham, WA 98227-2069
Email: [e-mail]
We are proud to offer this manual with your
new H6146 34º Clipped Head Framing
Nailer! We've made every effort to be
exact with the instructions, specifications,
drawings, and photographs of the nail-
er we used when writing this manual.
However, sometimes we still make an
occasional mistake.
Also, owing to our policy of continuous
improvement, your nailer may not exactly
match the manual. If you find this to be the
case, and the difference between the man-
ual and nailer leaves you in doubt, check
our website for the latest manual update or
call technical support for help.
For your convenience, we post all avail-
able manuals and manual updates for free
on our website at www.grizzly.com. Any
updates to your model of machine will be
reflected in these documents as soon as
they are complete.
This nailer presents serious inju-
ry hazards to untrained users.
Read through this entire manual to
become familiar with the controls
and operations before starting the
machine!

H6146 34° Clipped Head Framing Nailer -5-
SET UP
Unpacking Inventory
After you open the nailer box, you should
find the following.
Model H6146 Inventory (Figure 1)
A. 34° Clippled Head Framing Nailer ..... 1
B. Safety Goggles ................................. 1
C. Oil ....................................................... 1
D. Hex Wrench 3mm .............................. 1
E. Hex Wrench 4mm .............................. 1
F. Hex Wrench 5mm .............................. 1
G. Hex Wrench 6mm .............................. 1
Figure 1. Model H6146 inventory.
B
C
D
G
F
E
A
Your machine was carefully packaged for
safe transportation. Remove the packag-
ing materials from around your machine
and inspect it. If you discover the machine
is damaged, please immediately call
Customer Service at [phone] for
advice.
Save the containers and all packing mate-
rials for possible inspection by the carrier
or its agent. Otherwise, filing a freight
claim can be difficult.
When you are completely satisfied with
the condition of your shipment, inventory
the contents.
If any non-proprietary parts are missing
(e.g., a nut or a washer), we will gladly
replace them; or for the sake of expedien-
cy, replacements can be obtained at your
local hardware store.

H6146 34° Clipped Head Framing Nailer
-6-
Compressed Air
System
The Model H6146 is designed to be oper-
ated at 70-120 PSI using clean, dry, regu-
lated, compressed air. DO NOT exceed
the maximum operating pressure 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 Oiler Filter
Regulator
Air
Compressor
Nailer
Figure 2. Filter/Lubricator/Regulator Unit.
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!

H6146 34° Clipped Head Framing Nailer -7-
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 two 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.

H6146 34° Clipped Head Framing Nailer
-8-
OPERATIONS
Loading
Figure 3. Sliding pusher toward the
catch lever.
When replacing nails in your Model
H6146, follow these guidelines:
Diameter: 7⁄64"-1⁄8"
Length: 2"-31⁄2"
Capacity: 100
Strip Angle: 34°
To load your nailer:
1. DISCONNECT NAILER FROM THE
AIR SUPPLY!
2. Grip the nailer firmly, pull the maga-
zine pusher back, and engage the
catch lever as shown in Figure 3.
Figure 4. Loading nails into magazine.
3. Insert a strip of nails, pointed-end
down, into the magazine as shown in
Figure 4.
Operating
If you have not read the safety instruc-
tions in this manual, do not operate
the nailer.
Before you operate your nailer, place five
to six drops of the included oil into the
quick connect fitting where the nailer con-
nects to the air supply.
To operate your nailer:
1. Connect the air supply to the quick
connect fitting.
2. To test for proper nail penetration, hold
the nailer perpendicular to the surface
of a piece of clean scrap wood that is
thick enough for the length of nails you
have loaded.
4. Slide the nails all the way down to the
nose of the nailer.
5. Release the catch lever. The pusher
slides forward until it rests against the
nail stick.
Pusher
Catch Lever