Model g0621 (Mfg. since 10/06)
-39-
symptom
possible Cause
possible solution
Machine slows
when operating.
1. Feeding workpiece too fast.
2. Blade is dull.
1. reduce feed rate.
2. replace blade (
page 34).
ticking sound
when the saw is
running.
1. Blade weld contacting guide/support bearings
(a light tick is normal).
2. Blade weld may be failing.
1. Use file or stone to smooth and round the back of the
blade; slightly loosen the blade guides.
2. inspect and replace blade if necessary (
page 34).
Blade contacting
table insert.
1. insert installed upside down or backwards.
2. table improperly mounted or aligned.
1. re-install insert a different way.
2. Align table (
page 24).
Vibration when
cutting.
1. loose or damaged blade.
2. sawdust buildup on wheels.
1. tighten or replace blade (
page 34).
2. Clean all sawdust from rubber tires on wheels.
Burn marks on
the edge of the
cut.
1. too much side pressure when feeding
workpiece; blade is binding.
2. Blade too wide for size of radius being cut.
1. Feed workpiece straight into the blade. see
Basic
cutting Tips on page 26.
2. install a smaller width blade/increase blade tension.
see
page 34 or 20.
rough or poor
quality cuts.
1. Feeding workpiece too fast.
2. Blade guides adjusted incorrectly.
1. reduce feed rate.
2. re-adjust all blade guides and support bearings.
sawdust buildup
inside cabinet.
1. Clogged dust port.
2. low CFM (airflow) from the shop vacuum.
1. Clean out dust port.
2. three options:
—Check dust hoses for leaks or clogs.
—Connect saw to a more powerful shop vacuum.
Blade wanders
or doesn't cut
straight.
1. Blade lead.
2. sawdust buildup on wheels.
1. refer to Blade lead on
page 42.
2. Clean all sawdust from rubber tires on wheels.
Cuts are
not square
(vertically).
1. table tilt is not adjusted to 0˚ or positive stop
has moved out of adjustment.
2. table tilt scale pointer is not calibrated.
3. table is not square to the blade.
1. Adjust table tilt to 0˚; readjust positive stop if neces-
sary (
page 23).
2. Calibrate table tilt scale pointer to 0˚ (
page 23).
3. shim table (
page 42).
cutting Operations
Miscellaneous
symptom
possible Cause
possible solution
Blade tension
scale is grossly
inaccurate.
1. the spring in the blade tension mechanism
has lost its "spring." this is caused by not
releasing the blade tension when not in use or
frequently over-tensioning the bandsaw.
1. replace spring in the blade tension mechanism,
then take better care of the bandsaw by releasing
tension when not in use and not over-tensioning the
blade.
Wheel is noisy.
1. Wheel bearing is worn out.
2. Belt is too tight (lower wheel).
1. replace the wheel bearing.
2. Check/loosen the belt tension (
page 40).
Blade does
not track
consistently,
correctly, or at
all.
1. Wheels are not coplanar or aligned with each
other.
2. rubber tires on wheels are worn out.
1. Adjust wheels to be coplanar/aligned with each other
(
page 43).
2. redress the rubber tires on the wheels (
page 37);
replace the rubber tires on the wheels.
