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Figure 34 (resawing)
10.5 Blade lead
Blade lead, or drift, is when the blade begins to
wander off the cutting line even when the band
saw fence is being used. Figure 35 shows an
example of blade lead. It is more common with
small, narrow blades, and is almost always
attributable to poor blade quality, or lack of proper
adjustments. Inspect the band saw for the
following:
•
Fence not parallel to miter slot and blade.
•
Blade not tensioned correctly.
•
Blade is dull.
•
Teeth have excessive "set" on one side of
blade.
•
Workpiece being fed too quickly.
Figure 35
11.0 Maintenance
Before doing maintenance on
the machine, disconnect it from electrical
supply by pulling out plug or switching off
main switch!
Failure to comply may cause
serious injury.
Clean band saw regularly to remove any resinous
deposits and sawdust.
Keep miter slot, and guide bearings, clean and free
of resin.
Keep blade clean and sharp. Check it periodically
for cracks or other signs of wear.
The drive belt should be checked periodically. If it
looks worn, frayed, glazed or otherwise damaged,
replace it.
Remove any deposits from band wheels to avoid
vibration and potential blade breakage.
Do not let saw dust build up in the upper and lower
wheel housings. Vacuum or blow out dust from
inside cabinet. (Use proper dust mask equipment).
The table surface must be kept clean and free of
rust for best results. If rust appears, it can often be
removed with a mixture of household ammonia,
good commercial detergent and #000 steel wool.
Alternatively, commercial rust removers can be
found at many hardware stores.
Apply a light coat of paste wax to table. There are
also products in aerosol form available in major
hardware stores and supply catalogs. Whatever
method is chosen, the coating should protect the
metal and provide a smooth surface, without
staining workpieces.
If the power cord is worn, cut, or damaged in any
way, have it replaced immediately.
20
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