Jet JWBS-14SF, Инструкция по эксплуатации и каталог запасных частей

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8.15 Lower blade guides
Refer to Figure 26.
1. Disconnect band saw from power source.
2. Open lower door and swing lower guard out of
the way.
3. Adjust lower guide bearings and lower thrust
bearing below table in similar manner to that of
upper guide and thrust bearings.
4. Movement summary: Loosen lock knob (H) to
move guide bearing. Loosen lock knob (J) and
rotate knob (K) to adjust thrust bearing in
relation to blade. To move entire guide
assembly, loosen handles (L).
5. Make sure all knobs and handles are tightened
after adjustments are complete.
Figure 26
8.16 Guide post
Refer to Figure 27.
1. Disconnect band saw from power source.
2. Loosen lock knob (M) and raise or lower guide
post using handwheel (N).
Figure 27
3. Position blade guide assembly so that bottom
of guide bearings are about 1/8” above
material to be cut. Or, simply lower guide post
until scale pointer (O) indicates height of your
workpiece. This provides minimal clearance
between workpiece and bottom of guide
bearings, which will minimize blade deflection
as well as enhance operator safety.
4. Tighten lock knob (M).
8.17 Guide post parallelism
The guide post should be parallel to blade
throughout vertical travel of the guide post; thus the
guide bearings will maintain their relationship to
blade at any height from the table and won’t
require re-setting each time guide post is moved.
This setting has been accurately made by the
manufacturer and should not require immediate
attention, but may be checked in future as follows:
1. Disconnect band saw from power source.
2. Move blade tension handle to “Full Tension”
position.
3. The guide bearings in low position should
already be set in relation to blade (see section
8.13 ). Also, the table must be square with
blade (see section 8.4).
4. Loosen lock knob (M, Figure 27) and raise
guide post to a high position.
5. Confirm that guide post travels straight up and
down, and guide bearings maintain their
relationship to blade.
6. If guide post does not go straight up and down
(blade begins deflecting when guide post is
raised), slightly loosen the two screws (P,
Figure 27) and adjust guide post assembly as
needed.
7. When finished adjusting, securely tighten the
two screws (P).
8. Verify the setting by raising and lowering guide
post.
8.18 Drive belt replacement and
tensioning
The drive belt and pulleys are properly adjusted at
the factory. 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.
If belt becomes worn, cracked, frayed or glazed, it
should be replaced as follows:
Refer to Figures 28 and 29 .
1. Disconnect machine from power source.
2. Open upper and lower doors and remove
blade.
3. Loosen motor lock handle (A, Figure 28).
4. Raise motor lift handle (B) and retighten lock
handle (A) to hold motor in raised position.