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H5571 34˚ Framing Nailer Kit
-5-
Compressed Air System Safety Yoke Mechanism
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!
The Model H5571 is designed to be oper-
ated at 85-115 psi. DO NOT exceed the
maximum operating pressure!
Before you use your new nailer, regulate
the air pressure on your air compressor to
barely over the minimum psi for your nail-
er. Increase air pressure only if needed.
Many pneumatic tools benefit from an in-
line filter/lubricator/regulator unit. 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 inconvenience of having
to manually lubricate your tool every time
you use it. Check the current Grizzly cata-
log for availability of this unit. If you plan on
installing a filter/lubricator/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 safety
device. When the trigger is pressed, the
nailer will not fire until the safety yoke
mechanism is depressed.
To check the safety yoke:
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, 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 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.
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.