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PowerMate
®
L1/L2 Series Model
Repair Manual
Section I: Motor Brush Replacement (con’t)
PROCEDURE (con’t):
9. Check the motor spline and ensure there are still three washers on the spline. These washers are very thin, it is
best to put them between your thumb and index fi nger, separate and count them. (See Pic I - J on pg 14)
10. To put together the motor body, put it on a slight angle and join together. Tricky. (See Pic I - K on pg 14)
11. Tighten the bolts at the bottom of the motor. (See Pic I - L on pg 14)
12. Take a hack saw and cut off excess bolt even with the nut on the motor brush. (See Pic I - M on pg 14)
13. Turn the stairclimber drive screw so the ballnut is positioned approximately halfway along the drive screw . Slide
the outer frame over the inner frame from the handle end. (See Pic I - N on pg 14)
14. Grip the drive screw and rotate to engage the coupling with the spline on the stairclimber motor. The bearing
retainer can now be fastened to the inner frame with ¼” bolts and nuts. (See Pic I - O on pg 14)
15. Re-assemble the toeplate to the outer frame with four ¼” carriage bolts and nuts.
16. Re-install the fuse and operate.
17. Adjust ballnut locknut properly. Tighten ballnut locknut hand tight only, then tighten the set screws. See Ballnut
Locknut Adjustment for details.
18. Test the machine for smooth operation.
19. NOTE: Ballnut must spin in the ballnut bracket when machine is operated to its limit in either direction. Re-adjust
the ballnut locknut if necessary.
20. Test the machine for proper brake action. This test should be performed with a minimum load of 300lbs (140Kg).
Braking of the load should be heard to start immediately upon release of the switch.
21. Reach for a cold drink, you deserve it.
Pic I - A: Remove the Fuse
Pic I - B: Remove four nuts
retaining the toeplate to outer frame
Pic I - C: Remove teh two bolts and nuts
fastening the bearing retainer
Pic I - D: Slide off the outer frame from
the inner frame
Pic I - E: Apply duct tape to top of mo-
tor.
Pic I - F: Undo bolts at the bottom of
motor.
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