Nilfisk-ALTO Classic 12 - Manual (Page 19)

AMERICAN SANDERS TECHNOLOGY Classic 12 Belt Sander Operator's Manual
Page 19
Problem Cause Action
Burning or glazing.
Slow cutting.
Waves on sanded surface.
Chatter marks on sanded surface.
(close evenly spaced ripples)
Difficult to actuate tension release
lever.
Abrasive belt hunts. (seeks)
Abrasive belt will not track.
Abrasive belt tears along its length.
Dull abrasive.
Excessive sanding pressure.
Too fine of an abrasive belt.
Dull abrasive.
Too fine of an abrasive belt.
Insufficient sanding pressure.
Debris on wheels.
Flat spot on tire(s).
Flat spot on contact wheel.
Contact wheel out of round.
Debris interferes with mechanism.
Worn sleeve bearing.
Galled linkages.
Worn neoprene washers.
Worn sleeve bearing.
High edges on contact wheel.
Extreme difference in side-to side length
of belt.
High edge on contact wheel.
Debris built-up on (top) tension roller.
Replace abrasive.
Decrease sanding pressure setting. Fig12.
Page 13.
Use coarser abrasive.
Replace abrasive.
Use a coarser abrasive belt.
Increase sanding pressure setting. Fig. 12,
Page 13.
Remove and clean wheels.
Replace tires.
Contact an authorized dealer or replace
the contact wheel.
Blow out sanding chamber. Remove &
disassemble mechanism. Clean out.
Replace.
Lubricate with WD-40.
Replace (Item 70, page 21.)
Check for excessive play, replace.
Contact an authorized dealer or replace
the contact wheel.
Replace abrasive belt.
Check several different abrasive belts.
Contact an authorized dealer or replace
the contact wheel.
Clean tension roller.