Southbend SB1040 User Manual
Page 47
For Machines Mfg. Since 8/09
Model SB1040/SB1041
-45-
TR O U B L E S H O OTI N G
Symptom
Possible Cause
Possible Solution
Machine stalls
or slows when
operating.
1
. Too much pressure when feeding
workpiece.
1
. Reduce pressure when feeding workpiece.
2.
Motor is wired out of phase
(SB1041 only).
2.
Swap two power incoming power leads (see Phase
Polarity on Page 20).
3.
Workpiece is warped and binding
blade.
3.
Fabricate a jig for better workpiece control.
4.
Blade is not correct for material
being cut.
4.
Use the correct blade for the operation. Refer to
Blade Selection section beginning on Page 24.
5.
Belt(s) slipping.
5.
Tension/replace belt(s); ensure pulleys are aligned.
6.
Motor overheated.
6.
Let cool, clean motor, and reduce workload.
7.
Run capacitor at fault (SB1040
only).
7.
Test/repair/replace.
8.
Pulley or sprocket slipping on shaft.
8.
Replace pulley and key or set screw. Replace shaft
if worn.
9.
Motor connection wired incorrectly.
9.
Review wiring diagram on motor cover; correct wire
connections.
10.
Contactor has poor contacts.
10.
Test all legs for power, test field coil and replace if
at fault.
11.
Centrifugal switch at fault (SB1040
only).
11.
Adjust/replace centrifugal switch if available.
12.
Motor at fault.
12. Test for shorted windings, bad bearings and repair
or replace.
Vibration when
operating or
cutting.
1
. Loose or damaged blade.
1
. Tighten or replace blade.
2.
Worn wheel bearing.
2.
Check/replace wheel bearing.
3.
Wheels are not coplanar.
3.
Adjust wheels so they are parallel and aligned.
4.
Wheel tires worn or incorrectly
installed.
4.
Replace or dress rubber tires.
5.
Bent or dull blade.
5.
Replace blade.
6.
Wheels out of balance.
6.
Replace wheels.
7.
Loose machine component.
7.
Tighten loose component.
8.
Belt has a high spot.
8.
Replace/adjust the V-belt.
9.
Bandsaw blade wheel is bent or out
of balance.
9.
Check and replace for bad wheel or bearing.