BANDSAW OPERATIONS - OD1646 - LESSON 1/TASK 1
FIGURE 12.
A RIP FENCE.
(3) Band Tensioning.
It is essential that the saw band be correctly
tensioned in order to obtain a maximum accuracy and cutting rate.
Band
tension is applied by turning the removable handcrank (tension handle)
located below the saw head.
The band should be tightened to the proper tension indicated on the band
tension scale mounted on the machine.
The figures on this scale are
recommended tensions and are based on the most common gages and pitches
used.
When using bands with coarser pitch or lighter gage, the tension
should be reduced.
The tension should be increased when using heavier
bands.
A new band may stretch slightly as it is being used.
It is
important to check the tension of the band so that it does not become too
slack. Table 3 on page 19 gives the recommended tensions for all sizes of
band tools.
(4) Tracking the Band.
The upper wheel must be adjusted so that the
band tracks correctly on both wheels. To accomplish this, the upper wheel
can be tilted on its axis. Assuming that the saw band has
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