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Troubles:
Causes and
Remedies
Troubles Shooting
DEFECTIVE
Thickness variation
on a piece
SPLITTING
Knife guide gibs worn out
Bottom knife back guide inefficient
on different pieces
Replace top feed roll with steady
guide bar
Adjust/reduce the feed rate
Insufficient sharpening (clean/
dress the sharpening wheels)
Split surface rough
Adjust/reduce the feed rate
Cutting edge damaged
Insufficient sharpening (clean/
dress the sharpening wheels)
Knife guide rollers dirty or
damaged; check and clean
STOCK FEED
Feed irregular
Bottom feed roll too low
Cutting edge worn out
Rubber coated roll damaged
Guide bar not suitable for stock
involved; replace with top feed
roll
Belt worn out
Belt tension incorrect
KNIFE
Irregular rotation
Incorrect tension
Belt worn out
Incorrect position
Lower knife back guide inefficient
Lower knife back guide inefficient;
check and replace
Knife used up (width less 19 mm)
SCRAP
Poor exhaustion
Scrap pan full
Scrap pan open
Scrap dust filter clogged
Emery dust filter clogged
Maintenance And Repair 7-7