Guide Post; Drive Belt Adjustments; Wheel Brush - Jet JWBS-14SFX Operating Instructions And Parts Manual

Figure 7-10: lower blade guides (NOTE: right
bearing guard removed for clarity – removal not
necessary for adjustment.)
Figure 7-11: lower blade guides

7.11 Guide post

1. Disconnect band saw from power source.
2. Loosen lock knob (G
lower guide post using handwheel (G
7-5).
3. Position blade guide assembly so that bottom of
guide bearing assembly is about 3/16-inch
above material to be cut. The scale pointer (G
Figure 7-6) indicates height of guide assembly
from table. This provides minimal clearance
between workpiece and bottom of guide
bearings, which minimizes blade deflection and
enhances operator safety.
4. Tighten lock knob (G
, Figure 7-5) and raise or
1
, Figure
2
).
1

7.12 Drive belt adjustments

The drive belt and pulleys are properly adjusted by
the manufacturer. However, belt tension should be
occasionally checked when the band saw is new, as
a new belt may stretch slightly during the breaking-
in process.
7.12.1 Drive belt tension
Check tension by pushing with moderate pressure
on belt halfway between pulleys. An adequately
tensioned belt will deflect about 1/2-inch. Rotate
handwheel (V, Figure 7-4) as needed for proper
tension.
7.12.2 Drive belt replacement
power source before replacing drive belt.
If belt becomes worn, cracked, frayed or glazed, it
should be replaced as follows:
1. Disconnect machine from power source.
2. Open upper and lower doors and remove blade.
3. De-tension belt using handwheel.
4. Open lower wheel door. Remove nut and
washer, and remove blade wheel. If lower
wheel cannot be easily removed, you may need
to use a wheel puller to remove it.
5. Remove old belt from pulleys and install new
belt, making sure it seats properly in pulley
grooves.
6. Check pulley alignment. To align, loosen set
screws in pulley and slide to adjust. Retighten
set screws.
7. Reinstall lower blade wheel, washer, and nut,
and tighten securely.
,
8. Install blade, and verify blade tension and
3
tracking before operating (sect 7.5 and 7.6).

7.13 Wheel brush

An adjustable brush is located in lower wheel
housing. It should remain in constant contact with
blade and wheel to prevent buildup of gum and
debris. Loosen nut to adjust angle if needed.
16
Disconnect machine from