Service manual

C762, C764, C764i Stairclimber
Page 22
Procedure 5.2 - Measuring the Resistance of the Magnet
Assemblies
Caution
Remove power from the climber before you measure magnet resistance.
Procedure
1. Remove the covers as described in Procedure 7.1.
WARNING
Before performing maintenance operations with the covers removed, review the Warning and
Caution statements listed in Section One, Things You Should Know.
2. Press down the stair arm with one hand. With your other hand, grasp and pull the end of the
HTD belt connected to the return spring. Release the stair arm. Remove the belt from the
pulley and belt idler (refer back to Diagram 5.1).
3. Set the ohmmeter to a range that will conveniently read 125 ohms.
Note:
The resistance of the coils will be higher than optimum (85–105 ohms) when the coils are warm.
Take resistance measurements when the magnet assemblies are at room temperature.
4. Remove the wires from the two terminals on one of the coils. Measure the resistance
between the two bare coil terminals.
5. If the resistance measures less than 85 ohms or more than 105 ohms...
THEN... OTHERWISE...
Replace the magnet assembly Connect the wires removed in the
as described in Procedure 7.13. previous step; then continue with the
next step.
Note:
The C760 Series Climber magnet cable assembly is shown in Diagram 5.3.
6. Repeat Steps 4 and 5 for the remaining three coils on the climber.
7. Check the operation of the climber as described in Section Four, then replace the covers as
described in Procedure 7.1.