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Replacing a Upper Arm Flat Belt Pulley
Upper Arm Flat Belt Pulley Replacement Procedure
1 Remove the main body covers as per procedure, Cover Replacement (on page 53).
2 Remove the tension from the inner flat belt pulleys by lifting up on the stairarms, pulling the flat belts off
the flat belt pulleys, and then gently setting the stairarm down.
Upper Arm Cover Removal
FIGURE 39: UPPER ARM COVERS
3 Remove the four screws that fasten the inside upper arm covers to the upper arm.
4 Remove the screw that fasten the outside upper arm covers to the upper arm.
5 Remove the inside and outside covers from the upper arm.
6 Repeat the process for the remaining upper arm covers.
FIGURE 40: UPPER ARM COVER SCREW LOCATIONS
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