Sharp SW-100T Instruction Manual page 60

BEFORE ANY ADJUSTMENT OR MAINTENANCE OF THE MACHINE, PLEASE MAKE SURE TO
TURN OFF THE MACHINE AND DISCONNECT THE POWER SUPPLY.
GENERAL TROUBLES AND SOLUTIONS
DISCONNECT POWER CORD TO MOTOR BEFORE ATTEMPTING ANY REPAIR OR INSPECTION.
TROUBLE
Motor stalls
Cannot make
square cut
Increased cutting
time
Will not cut
PROBABLE CAUSE
Excessive belt tension
Excessive head pressure Reduce head pressure. Refer to Operating Instructions
Excessive blade speed
Improper blade
selection
Dull blade
Guide rollers not
adjusted properly
Rear vise jaw not
adjusted properly
Excessive head pressure Reduce head pressure. Refer to operating instructions
Dull blade
Insufficient head
pressure
Reduce blade speed
Motor running in wrong
direction
Blade teeth pointing in
wrong direction
Hardened material
SUGGESTED REMEDY
Adjust belt tension so that belt does not slip on drive
pulley while cutting ( 1/2" Min. deflection of belt under
moderate pressure.)
"Adjusting Feed".
Refer to Operating Instructions "Speed Selection".
Refer to Operating Instructions "Blade Selection".
Replace blade.
Refer to Adjustments.
Set fixed vise jaw 90 to blade.
"Adjusting Feed."
Replace blade
Increase head pressure. Refer to Operating
Instructions "Adjusting Feed."
Refer to Operating Instructions "Speed Selection."
Reverse rotation of motor. (Motor rotation C.C.W. pulley
end.)
Remove blade, turn blade inside out.
Re-install blade. (Teeth must point in direction of
travel. )
Use special alloy blades. (Consult your
industrial distributor for recommendation on type of
blade required.)