SYMPTOM POSSIBLE CAUSES SOLUTIONS
Machine will not start. 1. No power
2. Blown fuse
3 . M a i n o n / o f f s w i t c h o r M i c r o
switch is not functioning
4. Motor failure
1. Check power source, plug and wiring.
2. Check fuse, replace if it is blown.
3. Check position of the switches. Contact local
dealer for repair or replacement.
4. Inspect motor for failed components. Contact
Dealer for repair or replacement.
Circuit Breakers trip and /or
Fuses are blown
1. Wrong circuit size for the machine
2. Motor is overloaded under strain
from taking too heavy of cut
3. Use of an extension cord
1. Check circuit/fuse rating and amps of the motor.
Install CORRECT rated breaker/fuse.
2. Take lighter cuts in planing lumber.
3. No extension cord, or use heavier gauge cord.
Machine bogs down in the
cut
1. Excessive depth of cut
2. Feed rate is too fast
3. Knives are dull
1. Decrease depth of cut.
2. Reduce feed rate.
3. Replace or sharpen knives.
Cutting and planer feed rate
is not consistent
1. Belts are loose
2. Chips and dust build-up on parts
1. Check pulleys and belts for tension & wear.
2. Unplug machine and clean all parts.
TROUBLESHOOTING THE JOINTER
Jointer fence is not
accurate at 90° or 45°
1. Fence stops are not properly
adjusted
2. Locking handles are loose
1. Re-adjust the fence stops.
2. Check all handles to make sure that they are
properly tightened before starting the machine.
'Chatter' marks on lumber
Cutterhead slows down
when jointing
1. Feed rate is too fast
1. Feed rate is too fast
2. Downward pressure on the
cutterhead knives is too great
3. Planer drive rollers are operating
1. Slow the feed rate down.
1. Slow down feeding the wood over the
cutterhead.
2. Apply less downward pressure
3. Release belt lever for the planer drive rollers
Small raised lines are
running along the surface
1. Knives are nicked or broken 1. Rotate insert knives to new sharp edges.
Jointed stock is concave on
the back end of the board
Jointed stock is concave on
the front end of the board
Stock is concave in the
middle of the board
1. Knives are set higher than the
outfeed table
1. Outfeed table is set higher than
the knives
1. Table is out of level
1. Raise the outfeed table level with the
cutterhead & knives.
1. Lower the outfeed table level with the
cutterhead & knives.
1. Raise the table ends.
Milled surface is torn - also
called 'chip out' or 'tear out'
1. Cutting against the grain
2. Cut is too deep
3. Knives are dull
1. Cut with the grain. For figured woods, take
shallow cuts to minimize tear out.
2. Reduce cutting depth to 1/16" or less.
3. Rotate insert knives to new sharp edges.
Milled surface grain is
rough, raised or fuzzy
1. Lumber has a high moisture
content
2. Knives are dull
1. Reduce the moisture content by drying it, or
switch to other properly seasoned lumber.
2. Rotate insert knives to new sharp edges.
Milled surface is glossy 1. Cutting depth is too shallow
2. Knives are dull
3. Feed rate is too slow
1. Increase depth of cut slightly.
2. Rotate insert knives to new sharp edges.
3. Increase feed rate.
24
TROUBLESHOOTING
FOR YOUR OWN SAFETY, ALWAYS TURN OFF AND UNPLUG THE MACHINE
BEFORE CARRYING OUT ANY TROUBLESHOOTING.
(32 pages)
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