Stairmaster 4000 PT series, Owner'S Manual

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Page 44
ALTERNATOR
1. Remove the side panels.
2. Mark the location of each wire attached to the alternator then
remove the wires from the alternator (See figure 7).
3. Remove the alternator adjusting bolt on the slotted brace.
4. Remove the Poly-V belt and inspect the belt for wear. Replace the belt
if it is cracked, cut, or is otherwise damaged.
5. Support the alternator while removing the nyloc nut and the alterna
tor mounting bolt from the frame.
6. Remove the alternator from the frame.
7. Reverse the removal procedures to install the new alternator.
8. Verify that the alternator is wired correctly (See figure 7) and that
the Poly-V belt deflection is set to allow 1/4" (0.6 cm) of belt deflec-
tion before applying power to the machine (see Figure 8
).
ALTERNATOR BELT
1. Remove the side covers.
2. Loosen the alternator adjustment screw that mounts the alternator
brace to the alternator, and the pivot adjusting bolt that mounts the
alternator to the frame.
!
WARNING
THE BELTS MUST BE PROPERLY TENSIONED. A BELT THAT IS TOO TIGHT
WILL CAUSE SLOW AND SLUGGISH OPERATION. A BELT THAT IS TOO LOOSE
WILL CAUSE EXCESSIVE NOISE AND BELT WEAR.
PARTS REMOVAL AND REPLACEMENT