Hafco Woodmaster BP-430A, Operation Manual

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24
OPERATION MANUAL
Symptom Possible Cause Possible Solution
Machine slows
when operating
1. Applying too much pressure to workpiece.
2. Blade is dull.
1. Feed workpiece slower and in a smooth
motion
2.. Replace blade
Ticking sound
when the saw is
running.
1. Blade weld contacting support bearing.
2. Blade weld may be failing
1. Use file or stone to smooth and round the
back of the blade.
2. Inspect and replace blade if necessary
Blade touching
table insert.
1. Excessive side pressure when cutting.
2. Table improperly adjusted
1. Reduce side pressure.
2. Adjust table
Vibration when
cutting.
1. Loose or damaged blade. 1. Tighten or replace blade
Burn marks on
the edge of the
cut.
1. Too much side pressure when feeding
workpiece.
2. Blade too wide for size of radius being cut
1. Feed workpiece straight into the blade.
2. Install a smaller width blade/increase blade
tension.
Rough or poor
quality cuts.
1. Blade lead. 1. Blade lead is commonly caused by too fast
feed rate, a dull blade, or improper tension
6.2 WHEEL ALIGNMENT
Wheel alignment is one of the most important issues to
ensure the best performance from your band saw. Over
time vibration, and wandering blades cause tyre wear.
This can be considerably reduced when the wheels are
properly aligned. The procedure is as follows.
1. Remove the fence and table, then open both the
wheel covers.
2. Make sure the guide blocks and rear support
bearings have been moved away from the blade,
then tighten your blade to the tension that it will
be used during operation.
4. Place the straight edges against both wheels in
the positions shown in Fig. 6.1
5. The hub on the bottom wheel allows you to adjust
the lower wheel in the desired direction.
By loosening the lock nuts and turning all the grub
screws clockwise in equal amounts, pushes the
wheel forward. Turning all the grub screws counter
clockwise moves the wheel towards the back of
the machine. When the grub screws are adjusted
individually, each grub screw controls the
direction that the wheel tilts. (Fig. 6.2)
6. When finished with the adjustment the locked
nuts must be tightened.
F
ig
. 6.1
F
ig
. 6.2