33
Trouble Probable Cause Remedy
“Blade lead” occurs
(blade wanders
during cut)
Fenc e not aligned with blade. Check and adjust fenc e ( see page 17)
Wood is warped. Sel ect differ ent wood.
Exc essive feed r ate Reduce feed rate.
Inc or r ec t blade being used for the
part icular c ut being made. Change blade to corr ec t t y pe.
Bl ade tension impr oper ly set . Set blade tension acc or ding to blade
size.
Bearing guides not set pr oper ly. Adj ust guides (see pages 24-25).
Bl ade cannot be
tensi oned pr oper ly. Tensi on spring is fatigued. Replace tension spring (cont ac t
service representative).
Bl ade binds in the
workpiece.
Inc or r ec t blade tension or dam aged
blade. Correct accordi ngly.
Bl ade too wide for desired r adius. Sel ect narrower blade. S ee c har t on
page 35.
Bl ade forms cracks at
base of teeth.
Teeth not suitable for partic ular job, or
are incorrectly set.
Replace with proper blade for job.
Bl ade thickness not suit able for band
wheel diameter . Replace with proper thickness blade.
Bl ade sharpened incorr ec tly,
becomes overheated. Sharpen blade properly or repl ac e.
Band wheels have becom e
misaligned. Contact servic e representative.
Crack s on back edge
of blade. Workpiec e being fed t oo quic kl y . Reduce feed speed to lessen strain
on the blade.
Welding on blade not perfectly
aligned.
Eliminate the welded part, and re-
weld properly; or ac quir e a new blade.
Round the bac k edge of a new blade.
Thr ust bear ing is worn; c ause d by
constant c ontact with back of blade. Replace thrust bear ing. Adj ust new
bearing according to instructions.
Bl ade breaks
prematurely. Feeding workpiec e too quickly. Reduce feed force.
Bl ade guides misaligned. Set bearing guides appropriate
distance from b lade.
Bl ade pitch too coarse, or wrong size
blade for particular cut (e.g. , wide
blade to cut a tight radius).
Refer to blade selection chart; use
appropriate blade for the oper ation.
Bl ade overheated dur ing welding. Replace bl ade, or hav e blade
annealed, or eliminate brittle part and
weld correctly.