Jet JWB-10, Operating Instructions And Parts Manual, Page: 12 / 24

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There are two blade guide assemblies – an upper
assembly (Figure 14) and lower assembly (Figure
15).
Adjustments are performed in the same manner for
each assembly. Each assembly must be adjusted in
turn using the adjustment procedures outlined
below.
9.7.1 Thrust bearing adjustment
Disconnect machine from
power source. Never make adjustments with the
machine running. Failure to comply may cause
serious injury.
Refer to Figures 14 and 15:
Note: Blade must already be tensioned and track-
ing properly ( sect. 9.4 and 9.5 ).
1. Disconnect machine from power source.
2. For the upper thrust bearing, loosen thumb-
screw (A, Figure 14). For the lower blade guide,
loosen setscrew (A, Figure 15) with the 3mm
hex wrench provided.
3. Slide the adjustment shaft (C) so the blade is
positioned in the middle of the thrust
bearing (D).
Figure 14: upper blade guides
Figure 15: lower blade guides
The thrust bearing (D) is mounted on a concentric
shaft (C). When the shaft is rotated, the relative
position of the bearing to the back of the blade can
be changed.
5. Rotate the adjustment shaft (C) so the thrust
bearing (D) just clears the back of the saw
blade.
6. Tighten thumbscrew/setscrew (A).
NOTE: If a blade is being replaced with a new one
of a different size, the adjustment described above
may fall out of range and further adjustment may be
required as follows:
7. Loosen the socket head screw (E, not visible)
with a 10mm wrench and adjust the entire
assembly back or forth to just clear the back of
the saw blade. Tighten screw (E), then fine tune
the adjustment by repeating the first part of this
step.
8. Secure the thrust bearing (D) by tightening the
thumbscrew (A, upper guide) or setscrew
(A, lower guide).
9.7.2 Guide bearing adjustment
Disconnect machine from
power source. Never make adjustments with the
machine running. Failure to comply may cause
serious injury.
Refer to Figures 14 and 15:
Note: Blade must already be tensioned and track-
ing properly ( sect. 9.4 and 9.5 ).
1. Disconnect machine from power source.
2. For upper blade guide, loosen two thumb-
screws (F). For lower blade guide, loosen two
setscrews (F) with the 3mm hex wrench
provided.
3. Slide adjustment shaft (G) to position each
guide bearing (H) approximately 1/16" behind
the gullets of the saw blade.
The guide bearing (H) is mounted on a concentric
shaft. When the shaft (G) is rotated, the relative
position of the guide to the blade can be changed.
4. Rotate each adjustment shaft (G) to position the
guide bearings (H) within 1/32" of the saw
blade.
5. Secure the guide bearings (H) by tightening
thumbscrews (F, upper guide) or setscrews
(F, lower guide).
9.7.3 Miter gauge adjustment
Refer to Figure 16:
To adjust angle of miter gauge, loosen handle (J)
and rotate gauge body. Tighten handle.