17
11.0
Troubleshooting JWP-13BT Planer
Symptom
Possible Cause
Correction*
Planer will not start.
No incoming power.
Check plug connection.
Low voltage.
Have power line inspected for proper voltage.
Circuit breaker on planer motor tripped.
Allow motor to cool and press reset switch.
Fuse blown or breaker tripped at panel.
Check power source. Replace fuse or reset
breaker.
Motor brushes worn or damaged.
Inspect and replace brushes if needed.
Short circuit in line cord or plug.
Inspect cord or plug for damaged insulation
and shorted wires.
Defective or loose switch or wiring.
Have a qualified electrician inspect switch and
wiring.
Motor failure.
Have motor inspected by qualified personnel.
Incorrect fuses or circuit breakers in
power line.
Install correct fuses or circuit breakers.
Motor stalls or
overheats, resulting in
tripped breaker.
Motor overloaded.
Reduce load on motor; try less depth of cut or
slower feed rate. Make sure knife inserts are
sharp.
Low voltage.
Correct the low voltage conditions.
Incorrect fuses or circuit breakers in
power line.
Install correct fuses or circuit breakers.
Motor failure.
Have motor inspected by qualified personnel.
Machine slows when
operating.
Feed rate too fast or cutting too deeply.
Select lower feed rate, or shallower depth of
cut.
Drive belt is loose (stretched).
Replace belt.
Motor brush failure.
Inspect and replace brushes if needed.
Snipe.
Dull knife inserts.
Rotate or replace knife inserts.
Inadequate support of long boards
Use an assistant or roller stand to support
long workpieces.
Lumber is not butted properly.
Butt each piece of stock end-to-end as they
pass through the planer.
Cutterhead not parallel to table.
Contact JET technical service.
Fuzzy grain.
Wood has high moisture content.
Remove moisture by drying, or use different
stock.
Dull knife inserts.
Rotate or replace knife inserts.
Torn grain.
Too heavy a cut.
Remove less material.
Knives cutting against grain.
Cut with the grain.
Dull knife inserts.
Rotate or replace knife inserts.
Rough/raised grain.
Dull knife inserts.
Rotate or replace knife inserts.
Too heavy a cut.
Reduce depth of cut and make more passes.
Wood has high moisture content.
Remove moisture by drying, or use different
stock.
Poor feeding of lumber.
Excessive warpage of stock.
Use different stock.
Planer bed rough or dirty.
Clean pitch and residue; wax planer bed.
Feed roller surfaces are dirty.
Clean feed rollers with cloth and mild cleaner.
Dull knives, or debris building up on
cutterhead.
Clean cutterhead; rotate or replace knife
inserts; clean out dust hood if being used.
Drive belt slipping or damaged.
Replace belt.
