Grizzly H2910 - Manual (Page 6)

H2910 3-IN-1 WOOD, METAL & CONCRETE NAILER -5 -
Compressed Air System Safety Yoke Mechanism
The safety yoke is a mechanical
device that can fail. Never rely on the
safety yoke mechanism as an excuse
to point the tool at yourself or any
bystanders. Serious injury may occur.
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 the nailer!
The Model H2910 is designed to be oper-
ated at 60-100 psi. Do not exceed the
maximum operating pressure for your
model.
Before you use your new nailer, install the
3 ⁄
8
" quick connect fitting that comes with the
nailer. Install a female 3 ⁄
8
" fitting on the air
hose. Regulate the air pressure on your air
compressor to barely over the minimum psi
for your model.
Many pneumatic tools benefit from an in-
line filter/lubricator/regulator unit. This
attachment is connected by hoses
between the air compressor and the sta-
pler. Using this unit protects your tool from
damaging water build-up, allows you to
adjust and maintain constant air pressure
to your tool, and saves you the inconve-
nience of having to manually lubricate your
tool every time you use it. Check the cur-
rent Grizzly catalog for availability of this
unit. If you plan on installing a filter/lubrica-
tor/regulator unit in your compressed air
system, always follow the connection
instructions that come with the unit.
A safety yoke mechanism (bump fire) 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. Make sure the nailer is disconnect-
ed 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, staples,
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 our cus-
tomer service for help.
Similarly if the nailer fires when the trigger
is pulled, without the safety yoke mech-
anism being depressed , then the nailer is
not working properly.
If either of these two conditions develop
after you have used your nailer for a peri-
od of time, check the lubrication of these
mechanisms.