Jet HVBS-710G Operating Instructions And Parts Manual page 21

Trouble
Cuts not square.
Finished surface of
workpiece is rough,
unsatisfactory.
Excessive blade
breakage.
Excessive blade
breakage (cont.)
Premature blade
dulling.
Premature blade dulling
(cont.)
Unusual wear on
side/back of blade,
No coolant flow.
Probable Cause
Feed pressure too great.
90° angle stop is not set correctly.
Incorrect blade toothing in relation to
workpiece.
Blade is worn, cutting crooked.
Incorrect adjustment of bearing guides
and guide assembly.
Workpiece incorrectly positioned in vise.
Poor blade tension.
Blade is dull.
Improper blade for cutting operation.
Downfeed rate too fast.
Blade tension too low.
Incorrect blade tension.
Incorrect blade speed or downfeed rate.
Workpiece loose in vise.
Blade rubs on wheel flange.
Teeth too coarse for material.
Teeth in contact with workpiece before
saw is started.
Blade guides are misaligned.
Blade too thick for wheel diameter.
Cracking at weld; poor annealing of blade.
Teeth too coarse.
Blade speed too fast.
Inadequate downfeed rate.
Hard spots or scale on material.
Work hardening of material (especially
stainless steel)
Blade installed backwards.
Insufficient blade tension.
Blade guides worn.
Blade guide bearings not adjusted.
Blade guide bearing bracket is loose.
Pump motor burned out.
Filter screen clogged.
Coolant level low.
Remedy
Decrease feed pressure.
Adjust stop until blade is square with vise.
Check Machinery's Handbook for
recommended blade type.
Replace blade.
Re-adjust guide assemblies.
Check positioning and clamping in the
vise.
Check and correct if needed.
Replace blade.
Check Machinery's Handbook for blade
recommendations.
Reduce downfeed rate.
Increase blade tension.
Adjust blade tension.
Adjust accordingly.
Clamp workpiece securely.
Adjust blade tracking.
Use appropriate blade for material being
cut.
Start motor before blade contacts
workpiece.
Adjust blade guides as needed.
Use thinner blade.
Replace blade.
Use finer tooth blade.
Reduce speed.
Adjust cylinder dial setting as needed.
Scale: Reduce speed and increase
downfeed rate. Hard Spots: Increase
downfeed rate.
Increase downfeed rate.
Remove blade, twist inside-out and re-
install.
Adjust as needed.
Replace guides.
Adjust blade guide bearings.
Tighten blade guide bearing bracket.
Replace pump.
Clean filter screen.
Add coolant to tank.
21