18
POSITIONING THE UPPER AND LOWER BLADE GUIDE/THRUST BEARING ASSEMBLIES
The upper/lower blade guides and thrust bearing are both assembled as one unit which can be moved back or
forward.
To prevent damage to the blade, the blade guide bearings must remain behind the blade teeth during operation.
Proceed as follows:
Upper assembly:
1.
Using a 6 mm Allen key, loosen the cap screw on the
upper guide assembly shaft,
C
.
2.
Then move the upper assembly forward along the
shaft until the blade guide bakelite blocks and bear
ings are at least 1/32” behind the blade teeth, (do not
protrude past the hollowed part of the teeth of the
blade,
D
).
3.
Re-tighten the cap screw to secure the upper assem-
bly in position.
Lower assembly:
Repeat with the lower guide assembly.
1/32”
D
The blade guide bakelite blocks
A
and bearings
B
keep
the blade from moving from side to side during cutting
and must be snug but not touching the blade in order to
ensure accurate cuts.
The thrust bearing
C
keeps the blade from moving back
and out of position when the work is being fed into the
blade and must be very close to the back of the blade to
prevent damage to the blade during cutting.
Note: Before adjusting the upper and lower blade guide
assemblies, make sure the blade is tensioned and tracking
properly. Adjust the upper and lower blade guide assem-
blies after each blade tension and tracking adjustment.
Whenever the upper guide bearings and thrust bearing
are adjusted, the lower guide bearings and thrust bearing
should also be adjusted.
ADJUSTING THE UPPER/LOWER BLADE GUIDES AND THRUST BEARING
BEFORE MAKING ANY ADJUSTMENTS, MAKE SURE THAT THE SWITCH IS IN THE “OFF” POSITION AND THAT THE POWER
CORD IS UNPLUGGED.
C
B
C
A
A
Note
The upper and lower wheels are factory set to allow for
easy and optimal blade tracking adjustment s using the
primary blade tracking adjustment handwheel, which
adjusts the angle of tilt of the upper wheel.
In extremely rare cases, if acceptable blade tracking
cannot be attained through the primary adjustment it may
eventually become necessary to make minor adjustments
to the angle of tilt of the lower wheel.
The four cap screws
D
may be adjusted in or out to tilt the
lower wheel up/down or left/right as needed.
C
