Jet JWP-12DX - Maintenance

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To replace the knives:
Note: the knives are double edged so they can
be rotated one time before needing to be
sharpened.
1. Insert the first knife into the slot in the
cutterhead. Make sure the sharpened edge
is against the knife wedge (A, Fig. 15) and
the ends of the knife are even with the ends
of the cutterhead.
2. Place the knife gauge (B, Fig.15) at one end
of the cutterhead (C, Fig. 15) and knife (D,
Fig. 15). The edge of the knife must touch
the gauge while the two feet of the gauge
rest on the cutterhead.
3. Tighten the screw at this end of the knife.
4. Move the gauge to the other end of the
cutterhead and check for proper knife depth.
5. Tighten the screw at this end of the knife.
6. Tighten remaining screws firmly, to a torque
of 50 in. lbs. (See Fig. 14).
7. Rotate the cutterhead and install the second
knife.
8. Install the chip guard.
Carbon Brush Maintenance
The JWP-12DX has two brushes that require
periodic inspection and occasional replacement.
If the motor is running properly, the brushes are
good. If the motor slows down under a
relatively light load, it is time for brush
replacement:
1. Unplug the machine from the power
source.
2. Remove the brush plugs (A, Fig. 16) with a
screwdriver.
3. Gently pull out both brush holders. There is
one on the opposite side of the motor
4. Inspect the brushes. If they are worn to the
indicator line (A, Fig. 17) or they are
defective, replace them.