Troubleshooting The J-3130 And J-3230 - Jet J-3130 Operating Instructions And Parts Manual

12.0 Troubleshooting the J-3130 and J-3230

Table 4
Symptom Possible Cause
Excessive blade Material loose in the vise.
breakage.
Incorrect feed or speed.
Incorrect blade tension.
Teeth in contact with work before saw is
started.
Blade rubs on wheel flange.
Misadjusted blade guides.
Blade too thick for wheel diameter
Cracking at weld
Premature blade Teeth too coarse.
dulling.
Blade speed too high.
Inadequate feed pressure.
Hard spot or scale on material.
Work hardening of material (especially
stainless steel).
Blade installed backwards.
Correction
Use more pressure to tighten vise.
Check right jaw pivot and lock bolts for
tightness.
Check left jaw pivot bolt for looseness -- be
certain the jaw is not tilting upward when you
apply pressure to the work in the vise.
If you are stacking multiple pieces in the vise,
be sure all of the pieces are captured by the
vise pressure.
Check technical literature for recommended
feeds and speeds for the material and blade
you are using.
Check chip formation to adjust speed and feed
to correct rate when sawing.
Adjust blade tension to where it just does not
slip on the wheel.
Be sure the saw motor has come fully up to
speed before beginning a cut and be sure the
blade is not resting on the work piece before
the motor has come up to full speed.
Use paper cutting method of adjusting blade
tracking. See Blade Tracking .
Check drive and idler wheels for looseness in
mounting parts or worn/damaged bearings.
Adjust blade guides.
Use a thinner blade. Check with your blade
supplier for
thickness for a specific wheel diameter.
Replace blade.
Use finer tooth blade.
Try next lower speed or check technical
literature for
regarding speeds for specific blade and
material being cut.
Check with
recommendations on the work piece material
supplied.
If using coolant, check with supplier regarding
correct coolant for the job.
Increase pressure
formation to be sure you are cutting efficiently.
Reduce speed of blade.
Increase feed pressure in scale or hard spots.
Work hardening materials such as stainless
require a heavy, continuous cut. Be sure you
are using a sharp blade, then, if necessary,
release some counterbalance spring pressure
by loosening the tension nut if work hardening
of the material is a problem.
Reinstall blade so teeth point toward right end
of saw.
18
recommendations on blade
specific recommendations
materials supplier
while observing
for
chip