Trouble shooting – Sears 113.21371 User Manual

Page 19

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trouble shooting

WARNING:

FOR

YOUR

OWN

SAFETY,

TURN

SWITCH

"OFF"

AND

ALWAYS

REMOVE

PLUG

FROM

POWER

SOURCE

OUTLET BEFORE TROUBLE SHOOTING.

TROUBLE

PROBABLE CAUSE

REMEDY

Noisy Operation

1. incorrect belt tension

1. Adjust tension. See section "Getting To Know

Your Drill Press" . . .BELT TENSIONING ROD.

2. Dry Spindle

2. Lubricate spindle. See "Lubrication" section.

3. Loose spindle pulley

or motor pulley.

3. Tighten setscrews in pulleys.

Drill Burns.

1. incorrect speed

1. Change speed. See section "Getting To Know

Your Drill Press" . .. DRILLING SPEED.

2. Chips not coming out

of hole.

2. Retract drill frequently to clear chips.

3. Dull Drill

3. Reshapen drill.

4. Feeding too slow.

4. Feed fast enough . . .allow drill to cut.

5. Not lubricated.

5. Lubricate drill. See "Basic Drill Press

Operation" section.

6. Drill running backwards.

6. Check motor rotation. See "Motor Specifications

and Electrical Requirements" section.

Drill leads off ...

hole not round.

1. Hard grain in wood or

lengths of cutting
lips and/or angles

not equal.

1. Resharpen drill correctly.

Wood splinters on

underside.

1. No "back-up material"

under workpiece.

1. Use "back-up material" .. .See Basic Drill

Press Operation" section.

Workpiece torn

loose from hand.

1. Not supported or

clamped properly.

1. Support workpiece or clamp it. . .See "Basic

Drill Press Operation” section.

Drill Binds in

workpiece.

1. Workpiece pinching drill

or excessive feed
pressure.

1. Support workpiece or clamp it. . .See "Basic

Drill Press Operation” section.

2. Improper belt tension.

2. Adjust tension . . .See section "Getting to Know

Your Drill Press" . . .BELT TENSION ROD.

Excessive drill

runout or wobble.

1. Bent drill.

2. Worn spindle bearings.

1. Use a straight drill.

2. Replace bearings.

3. Drill not properly

installed in chuck.

3. Install drill properly . . .See "Basic Drill

Press Operation" section.

4. Chuck not properly installed.

4. Install chuck properly . . .refer to "Unpacking

and Assembly Instructions" . . .INSTALLING THE
CHUCK.