Grizzly Extreme Series Jointer G9953ZX - Manual (Page 41)

Extreme series Jointer (Mfg. since 9/11)
-39-
adjusting/Replacing
cutterhead Knives
if your jointer has a knife-style cutterhead, cor-
rectly setting the height of the knives is crucial
to the proper operation of the jointer and is very
important in keeping the knives sharp. if one knife
is higher than the others, it will do the majority
of the work, and thus, dull much faster than the
others.
there are several methods for setting the knives.
the Jointer pal
® included with your jointer is
simple to use and is designed to hold the knives
at the correct setting while you secure them. if you
choose to use the Jointer pal
® , follow the instruc-
tions that are included with it.
the straightedge method is described below
and produces the same results as the Jointer
pal
® . this method uses a high-quality, precision
straightedge held flat against the outfeed table
and over the cutterhead, then the knife heights
are set to the bottom of the straightedge, as
shown in
Figure 60.
7. position the straightedge on the outfeed table
and over the insert to make sure that it is
installed correctly and at the same height as
the other inserts.
— if the insert is raised above the correct
height, remove it and repeat the above
procedure until it is properly installed.
air pressure Torque
Wrench
To fully tighten the Torx screws with the
included air pressure torque wrench:
1. insert a torx bit into the collet of the wrench.
2. Make sure the pressure gauge is fully thread-
ed onto the wrench, as shown in Figure 59.
3. add two drops of pneumatic tool oil to the
incoming valve of the wrench to keep the
internal components lubricated.
4. Connect the wrench to a source of 90 psi
air pressure, then use the adjustment knob
of the pressure gauge to initially set the air
pressure to 20 psi on the gauge.
5. set the direction switch for clockwise rotation
and the setting dial to 2.
6. While carefully holding the insert in position,
insert the bit into the torx screw and press
the operation lever to seat the insert. repeat
this step with all remaining inserts.
7`. adjust the air pressure to 40 psi, then fully
tighten the torx screw to a final torque setting
of approximately 50–55 inch/pounds. repeat
with all remaining inserts.
Figure 59. Components of the air pressure
torque wrench.
pressure
gauge
pressure
adjustment
Knob
direction
switch
setting
dial
Collet