-48-
For Machines Mfd. Since 12/20
South Bend Tools
Model SB1108/SB1109
TROUBLESHOOTING
Symptom
Possible Cause
Possible Solution
Machine has
excessive vibration
or noisy operation.
1.
Motor or component loose.
1.
Replace damaged or missing bolts/nuts or tighten if
loose.
2.
Machine feet not adjusted properly.
2.
Adjust machine feet to stabilize machine.
3.
V-belts worn, loose, pulleys
misaligned or belt slapping cover.
3.
Inspect/replace belts with a new matched set
(Page 38). Realign pulleys if necessary (Page 44).
4.
Cutterhead inserts at fault.
4.
Rotate/replace inserts (Page 30).
5.
Pulley loose.
5.
Secure pulley on shaft.
6.
Motor mount loose/broken.
6.
Tighten/replace.
7.
Motor fan rubbing on fan cover.
7.
Fix/replace fan cover; replace loose/damaged fan.
8.
Bed rollers protruding unevenly.
8.
Adjust bed rollers (Page 29).
9.
Cutterhead bearings at fault.
9.
Replace bearing(s)/realign cutterhead.
10.
Centrifugal switch.
10
Test/repair/replace.
11.
Motor bearings at fault.
11.
Test by rotating shaft; rotational grinding/loose
shaft requires bearing replacement.
12.
Plastic chip deflector hitting
inserts.
12.
Replace chip deflector and realign (Page 42).
Table is hard to
adjust.
1.
Table locks are engaged or partially
engaged.
1.
Completely loosen table locks.
Excessive snipe
(gouge at the end
of workpiece that
is uneven with the
rest of cut).
Note:
A small
amount of snipe is
inevitable with all
types of planers–
the key is to
minimize it.
1.
One or both bed rollers are set too
high.
1.
Lower height of bed rollers (Page 29).
2.
Rear extension table slopes down or
is not level with main table.
2.
Adjust rear extension table set screws to make
extension table level with main table (Page 19).
3.
Chip breaker, feed roller, or
pressure bar set too low.
3.
Adjust height of chip breaker, feed roller, or
pressure bar (Page 39).
4.
Workpiece is not properly supported
as it leaves planer.
4.
Use an assistant or roller beds/stands to properly
support workpiece as it leaves planer.
Workpiece stops/
slows in the middle
of cut.
1.
Depth of cut too deep.
1.
Reduce depth of cut (Page 28).
2.
Pitch and glue build-up on planer
components.
2.
Clean planer components with a pitch/resin
dissolving solvent.
3.
One or both bed rollers are set too
low.
3.
Raise height of bed rollers (Page 29).
4.
Chip breaker or pressure bar set
too low.
4.
Raise height of chip breaker or pressure bar
(Page 39).
5.
Feed rollers set too low or too high.
5.
Adjust feed rollers to correct height (Page 39).
