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Item 43389
S
AFET
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Op
ERA
TION
M
AINTENAN
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E
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ETU
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Adjusting the Feed Handle Return Torsion Spring
Wear a full face shield during this procedure.
1. Loosen the Depth Screw Lock.
2. Move the Chuck to its uppermost position.
3. Turn the Depth Stop Ring clockwise until it stops.
Tighten the Depth Screw Lock to prevent the
Chuck and Arbor assembly from dropping
during Torsion Spring adjustment.
4. Insert a screwdriver in the lower-front notch of the
Spring Cap (26).
Hold it in place and, using a wrench,
remove the (outer) Nut (27) only.
5. With the screwdriver still in place, loosen the (inner)
Nut (27) until the Spring Cap notch disengages
from the Spring Retainer (24) -- about 1/8 inch.
6. Turn the screwdriver counterclockwise and
engage the next Spring Cap notch.
Leave the screwdriver in place.
7. Tighten the (inner) Nut just enough to engage the
notch.
If this Nut is too tight, it will restrict (up
and down) Chuck-Arbor movement.
8. Turn the Feed Handle and check the spring tension,
making sure the up movement is smooth and
complete.
From one inch down, the Chuck should return
to its uppermost position. If more tension
is required, repeat steps 4 through 8.
9. Replace the (outer) Nut and tighten on top
of the (inner) Nut. Do not overtighten.
10. If the up/down movement is restricted, slightly
loosen the (inner) Nut, and retighten the (outer) Nut.
Troubleshooting
problem
possible causes
Likely Solutions
Tool will
not start.
1. Cord not connected.
2. No power at outlet.
3. Tool’s thermal reset breaker
tripped (if equipped).
4. Internal damage or wear. (Carbon
brushes or switch, for example.)
1. Check that cord is plugged in.
2. Check power at outlet. If outlet is unpowered,
turn off tool and check circuit breaker.
If breaker is tripped, make sure circuit is right
capacity for tool and circuit has no other loads.
3. Turn off tool and allow to cool.
Press reset button on tool.
4. Have technician service tool.
Tool operates
slowly.
Extension cord too long or
wire size too small.
Eliminate use of extension cord. If an extension cord
is needed, use one with the proper diameter for its
length and load. See
Table A
on page 3.
Performance
decreases
over time.
1. Accessory dull or damaged.
2. Carbon brushes worn or damaged.
1. Keep cutting accessories sharp. Replace as needed.
2. Have qualified technician replace brushes.
Excessive noise
or rattling.
1. Internal damage or wear. (Carbon
brushes or bearings, for example.)
2. Belt (if equipped) too loose (slipping)
or too tight (bearing damage).
1. Have technician service tool.
2. Properly tension belt.
Overheating.
1. Forcing machine to work too fast.
2. Accessory dull or damaged.
3. Blocked motor housing vents.
4. Motor being strained by long or
small diameter extension cord.
1. Allow machine to work at its own rate.
2. Keep cutting accessories sharp. Replace as needed.
3. Wear ANSI-approved safety goggles and
NIOSH-approved dust mask/respirator while
blowing dust out of motor using compressed air.
4. Eliminate use of extension cord. If an extension cord
is needed, use one with the proper diameter for
its length and load. See
Table A
on page 3.
Follow all safety precautions whenever diagnosing or servicing
the tool. Disconnect power supply before service.
