Powermatic OES9138 operating instructions Check to make certain all electrical connections

Page 17

Trouble

Machine will not start/restart or repeatedly trips circuit breakers or blows fuses.

Sanding belt won’t come up to speed.

Belt won’t track.

Belt slips or stalls on application of pressure.

Excessive sanding belt replacement.

Machine vibrates excessively.

Sanding marks on workpiece.

Sanding grains quickly rub off belt.

Sanding belt becomes glazed.

Probable Cause

Remedy

 

 

 

Check to make certain all electrical connections

 

are correct and properly tight. The electrical

 

connections other than the motor are

Miswiring of the unit.

preassembled and tested at the factory. Therefore,

 

the motor connections should be checked as the

 

highest probability for error. If problems persist,

 

double check the factory wiring.

 

 

 

If the on/off switch is suspect, you have two

On/off switch failure.

options: Have a qualified electrician test the switch

for function, or purchase a new on/off switch and

 

 

establish if that was the problem on changeout.

 

 

Extension cord too light or

Use adequate size extension cord.

too long.

 

 

 

Low (incoming) voltage.

Contact qualified electrician.

 

 

Excessive bite, or feed

Allow sanding belt to cut freely, do not force.

pressure too great.

 

 

 

Drum is worn.

Replace drum.

 

 

Belt is stretched unevenly.

Replace belt.

 

 

Sanding belt tension not

Make sure lever is down all the way (page 13).

adequate.

 

 

 

Too much pressure being

Reduce pressure.

used during cuts.

 

 

 

Not using full width of belt.

Stroke across the belt using full width.

 

 

Improper motor mounting.

Check and adjust mounting.

 

 

Spring on tension

Replace with new spring.

mechanism is fatigued or

 

broken.

 

 

 

Drum is loose.

Tighten cap screw in motor (page 23, #39).

 

 

Bad or broken sanding belt.

Replace sanding belt.

 

 

Sanding belt too coarse for

Use proper grit. Coarser grits for stock removal,

required finish.

and finer grits for finish work.

 

 

Workpiece sanded across

When surface sanding, use very fine sanding belt

grain.

then finish by hand, working in direction of grain.

 

 

Sanding belt has lost its

Do not store sanding belts in extremely dry or high-

original properties.

temperature areas. Do not fold sanding belts.

 

 

Sanding painted surface.

Use open-end grain/flint belt.

 

 

Wood is wet or gummy.

No cure. Use different stock.

 

 

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Contents Oscillating Edge Sander Warranty Period Warranty and ServiceTable of Contents Page Page Introduction Specifications Features of the OES9138 Edge Sander Unpacking AssemblyContents of the Shipping Container Dust Collection Control Switch BracketGrounding Instructions Volt Operation Test Run After Wiring AdjustmentsConverting to 460 Volt Extension cordsTable/Belt Clearance Main Table TiltingMiter Gauge End TableReplacing Sanding Belt Tracking AdjustmentEnd Guard Operation Operating ControlsLubrication MaintenanceProbable Cause Remedy Troubleshooting the OES9138 Edge SanderCheck to make certain all electrical connections Trouble Probable Cause Remedy Replacement Parts Index No. Part No Description Size Qty Parts List Base AssemblyBase Assembly Parts List Drive Unit Drive Unit Parts List Tracking and Belt Release Unit Tracking and Belt Release Unit Parts List Table Assembly Table Assembly Parts List Contour Sanding Unit Contour Sanding Unit Electrical Connections 1 Phase Electrical Connections 3 Phase Electrical Connections 3 Phase
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