Horizon Fitness E51 Service Manual page 46

Replacing the Elliptical Servomotor/IC Board
(Programmable Resistance)
Tools: Phillips screwdriver, 13mm socket, 14mm socket, 17mm wrench,
2.5mm wrench, 5mm Allen wrench, crank puller. Note: Refer to diagram
on following page.
1. Unplug power supply from elliptical.
2. Remove the 13mm nut and associated bolt that attach the lower
handlebar to the lower link arm.
3. Remove the 5mm bolts that attach the left lower handlebar to the left
pedal arm.
4. Remove the crank arm cover from the left pedal arm with a Phillips
screwdriver.
5. With a 17mm wrench, remove the nut that attaches the left pedal arm
to the crank axle. Remove the pedal arm from the crank axle.
6. Remove the black cap from the center of the crank disk.
7. Remove the crank arm nut with a 14mm socket.
8. Using a crank puller, thread the puller onto the crank arm. Extract the
crank arm and crank disk from the axle and remove.
9. Lift console mast boot.
10. Remove the accent piece by gently lifting up at the bottom of the
accent piece and tilting towards the front of the machine.
11. Remove the screws that attach the left side cover in place.
12. Unplug the console cable from the IC board.
13. Remove the brake cable from the servomotor with a 2.5mm Allen
wrench.
14. Remove the entire servo motor assembly bracket from the frame.
15. Replace with new servomotor assembly.
16. Attach the brake cable to the servomotor.
17. Plug in the console cable to the IC board.
18. Plug in the machine.
19. Turn crank by hand to make sure that there is a RPM reading on the
console and all other functions are working properly. (If no RPM
reading check to make sure the sensor is in the correct position.
Make sure the resistance is working properly.
20. Attach the left side cover and secure with screws.
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