Troubleshooting

Problem

Possible Causes

Likely Solutions

1.Plug/outlet faulty or wired wrong. 1. Test plug and outlet for good contact and correct wiring.

 

2.

Start capacitor is faulty.

2.

Test capacitor and replace if necessary.

 

3.

Motor connection incorrectly

3.

Correct motor wiring.

 

 

wired.

 

 

 

4.

Power supply is faulty, or is

4.

Make sure hot lines and grounds are

Tool will not

 

switched off.

 

operational and have correct voltage on all

 

 

 

legs.

start or trips the

5.

Safety switch key is at fault.

5.

Install or replace safety key, or replace switch

breaker.

 

 

 

assembly.

 

 

 

 

 

6.

Motor ON/OFF switch faulty.

6.

Replace faulty ON/OFF switch.

 

7.

Centrifugal switch faulty.

7.

Adjust or replace centrifugal switch.

 

8.

Cable or wiring is open or has

8.

Check for disconnected or corroded

 

 

high resistance.

 

connections, troubleshoot wires for internal or

 

 

 

 

external breaks, then repair or replace wiring.

 

9.

Motor is at fault.

9.

Test, then repair or replace the motor.

 

1.

Wiring workpiece material.

1.

Only process wood with proper moisture

 

 

 

 

content and having no glues or resins.

2.Low power supply voltage. 2. Ensure hot lines and grounds are operational and have correct voltage on all legs.

3.

Run capacitor is faulty.

3.

Test capacitor and replace if necessary.

4.

Filter bags are at fault

4.

Empty and clean filter bags.

5.

V-belts are slipping.

5.

Replace bad belts, align pulleys, and re-

 

 

 

tension the V-belts.

6.

Plug or outlet is at fault.

6.

Test power plug and outlet for good contact

Machine stalls or

 

 

and correct wiring.

is underpowered 7.

Motor connections are wired

7.

Correct motor wiring. (See Wiring Diagram

 

incorrectly.

 

Pg. 19.)

8.

Motor bearings are at fault.

8.

Rotate motor shaft for noisy or burnt bearing,

 

 

 

repair/replace as required.

9.

Motor has overloaded.

9.

Use sandpaper of the proper grit and reduce

 

 

 

the feed rate/depth of sanding.

10.Motor has overheated.

10.Check motor-cooling air flow, let motor cool

 

 

 

and reduce workload on machine.

11. Centrifugal switch is at fault.

11. Adjust/replace centrifugal switch.

12.Motor is at fault.

12.Test motor and repair/replace if necessary.

SKU 98198

For technical questions, please call 1-800-444-3353.

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Harbor Freight Tools 98198 operating instructions Troubleshooting, Problem Possible Causes Likely Solutions