Keys
Treadmill

Model #PRO 750 Official Keys pro 750 conventional treadmill

Here are the diagrams and repair parts for Keys PRO-750 pro 750 conventional treadmill, as well as links to manuals and error code tables, if available.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Showing 10 of 14 parts

Motor Hood C#13

Treadmill Diagram

Motor hood c

Part #06-0007

The manufacturer no longer makes this part, and there's no substitute part

Front Roller#4

Treadmill Diagram

Front roller

Part #09-0003

The manufacturer no longer makes this part, and there's no substitute part

Roller Rear#5

Treadmill Diagram

Roller rear

Part #09-0002

The manufacturer no longer makes this part, and there's no substitute part

Upper Electr#15

Treadmill Diagram

Upper electr

Part #07-0012

The manufacturer no longer makes this part, and there's no substitute part

Drive Motor#12

Treadmill Diagram

Drive motor

Part #04-0004

The manufacturer no longer makes this part, and there's no substitute part

Treadmill Belt#3

Treadmill Diagram

Treadmill belt

Part #04-0001

The manufacturer no longer makes this part, and there's no substitute part

Motor Pan Bo#9

Treadmill Diagram

Motor pan bo

Part #06-0057

The manufacturer no longer makes this part, and there's no substitute part

Elv Mtr Actr#8

Treadmill Diagram

Elv mtr actr

Part #12-0006

The manufacturer no longer makes this part, and there's no substitute part

CONSOLE AND MEMBRANES

See All Related Diagrams

Console and membranes

Part #N/P

The manufacturer no longer makes this part, and there's no substitute part

Walkboard#6

Treadmill Diagram

Walkboard

Part #03-0003

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

Main causes: faulty sensors, wiring failure, bad control console
Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor control board
Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor
Main causes: bad control console, wiring failure, bad motor control board
Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor
Main causes: damaged walking belt, improper belt tension, bad roller bearing
Main causes: rear roller out of alignment, damaged walking belt, bad roller

Repair guides for treadmills

These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

June 1, 2015
By Lyle Weischwill
How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the motor correctly.

Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking belt

A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using these steps.

Repair difficulty
Time required
 45 minutes or less
June 1, 2015
By Lyle Weischwill
How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn't run.

Repair difficulty
Time required
 15 minutes or less

Articles and videos common to all fitness & exercise

Use the advice and tips in these articles and videos to get the most out of your treadmill.

June 29, 2022

Top questions about Sears and Sears PartsDirect

By Lyle Weischwill

Get answers to frequently asked questions about Sears and Sears PartsDirect.