25
Trouble Probable Cause Remedy
Conv eyor belt out of adj ustm ent. Readjust conveyor belt; see page 15.
Drive or driven roller needs adj usting. Readjust ; see page 16.
Conv eyor belt worn or defective. Replace conveyor belt; see pages 15
and 16.
Drive roller worn, bent, or varies i n
diameter si de to side. Replac e driv e roller.
Conv eyor belt tr ac k s
to one si de, or
osc illate s from s ide to
side.
Roller bushings elongated due to
ex cessive wear. Replace bushings.
Strip caught on insi de edge of slot, or
on inboard side of dr um. Re-adjust the str ip end in the slot
and/or trim the abrasive edge.
Abr asive strip is
loose. Strip not cut pr oper ly . Re-cut and re-install abrasive strip.
See pages 11 and 12.
Exc essive dept h of cut. Reduce depth of cut.
Exc essive f eed r ate. Reduce feed rate.
Inadequat e dust c ollecti on. Increase airflow at dust port.
Inadequat e abrasive. Use an open-coat abr asive.
Abrasive loads up
prematurely.
Stock fed at 90° angl e to drum. Angl e st oc k 60° if possible to av oid
resin line buildup.
Table height
adjust ment works
improperly. Improper adjustment of height contr ol. Readjust height c ontrol. See pages
19.
Bearing(s) out of alignment . Re-align bearings.
Dust in drum. Rem ove material inside drum.
Set scr ews l oose i n pulley or beari ng. Re-tighten set screws.
Abrasive fast ener on dr um loose
(wit hout abrasive stri p in plac e) . Insert abr asive strip, or replace
fastener.
Knock ing sound whil e
running.
Drum bear ing(s) worn. Replace drum bear ing(s).