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TOPREVENT I NJURY TOYOURSELF o r damage to theddH press, t urntheswitchtotheOFFposition andunpUug
thepower cordfromtheeUectrbaU
receptacle b efore making anyadjustments,
PROBLEM
Motor does
not start or
does not come
up to full
speed
Motor stalls or
circuit
breakers
open frequently
Motor running
too hot
Drill bit stalls
or slips
DrH_ bit or
matedam
smokes
or
burns
E×cessive
drill bit
runout or wobbme
UKELY CAUSE(S)
1. Switch key is removed.
2. Defective switch.
3. Defective capacitor.
4. Low line voltage.
5. Defective motor.
1. Circuit overload.
2. Low line voltage.
3. Motor overload.
4. incorrect fuses on circuit breakers.
5. Short circuit in motor; loose connections
or worn insulation on lead wires.
1. Restricted air circulation due to dust
accumulation.
2. Motor overload.
1. Belt is incorrectly tensioned.
2. Drill bit is not securely tightened in
chuck.
1. incorrect spindle speed.
2. Chips not exiting out of drill hole.
3. Dull drill bit.
1. Bent drill bit.
2. Drill bit not properly installed in chuck.
SOLUTION
1. insert switch key.
2. Have switch replaced.
8. Have capacitor replaced.
4. Correct !ow line voltage condition, if machine is
plugged into an extension cord, disconnect and plug
directly into wall outlet.
5. Have motor replaced.
NOTE: #3 and #4 must be done by a qualified service
technician; Consult Sears service.
1.
2.
3.
4.
Reduce circuit load (turn off other appliances).
Correct low line voltage condition. Check line voltage
with a multi-meter, if the machine is plugged into an
extension cord, unplug it from the extension cord and
plug directly to the wail outlet.
Reduce load on motor, slow down feed rate.
Have correct fuses on circuit breakers installed by a
qualified electrician.
inspect terminals in motor for damaged insulation and
shorted wires and have them replaced. Check all
power lead connections.
1. Clean dust and restore normal air circulation around
motor.
2. Reduce load on motor, slow down feed rate.
1.
2.
Adjust belt tension. See changing speeds and adiusting
belt tension in "OPERATIONS AND ADJUSTMENTS".
install drill bit properly. See installing and removing drill
bit in "OPERATIONS AND ADJUSTMENTS".
1.
2.
3.
Reduce spindle speed. See speed diagram on the
underside of the belt cover.
Retract drill bit frequently during drilling operation to
clear chips from hob.
Replace or sharpen drill bit.
1. Replace with a straight or new drill bit.
2. install drill bit properly. See installing and removing drill
bit in "OPERATIONS
AND ADJUSTMENTS".
Spindle returns
too
1. Return spring has incorrect tension.
1. Adjust spring tension. See adjusting spindle return
slow or too fast
spring in "OPERATIONS AND ADJUSTMENTS".
Chuck will not
stay onto spindme
1. Grease, dirt or oil on spindle taper or
in chuck taper.
1. Clean grease, dirt or oil off of spindle taper and chuck
taper. See drill press head and motor assembly in
"ASSEMBLY iNSTRUCTiONS".
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