Jet Tools J-7040 - Manual (Page 19)

19
Symptom Possible Cause Correction
Unusual wear on
side/back of blade Blade guides worn Replace blade guides.
Blade guide bearings not adjusted. Adjust blade guide bearings.
Blade guide bearing bracket is loose. Tighten blade guide bearing bracket.
Teeth missing/ripped
from blade Blade tooth pitch too coarse for
workpiece. Use blade with finer tooth pitch.
Feed too slow; feed too fast. Increase feed pressure and/or blade
speed.
Workpiece vibrating. Clamp workpiece securely.
Gullets loading up with chips. Use blade with a coarse tooth pitch —
reduce feed pressure.
Brush blade to remove chips.
Motor running too hot Blade tension too high. Reduce tension on blade.
Drive belt tension too high. Reduce tension on drive belt.
Blade too coarse for workpiece
(especially with tubular stock). Use blade with fine tooth pitch.
Blade too fine for workpiece
(especially with heavier, soft
material). Use blade with coarse tooth pitch.
Speed reducer gears require
lubrication. Check speed reducer.
No coolant flow Pump motor is burned out. Replace pump.
Screen/filter on pump is clogged. Clean screen/filter.
Impeller is loose. Tighten impeller.
Coolant level too low. Add coolant to reservoir.
Excessive speed
reducer noise/vibration V-belt is too tight. Reset V-belt tension.
Countering spring not tensioned
properly. Increase spring tension.
14.0 Replacement Parts
Replacement parts are listed on the following pages. To order parts or reach our service department, call 1-
800-274-6848 Monday through Friday (see our website for business hours, www.waltermeier.com). Having the
Model Number and Serial Number of your machine available when you call will allow us to serve you quickly
and accurately.