Stairmaster 4000 PT series, Owner'S Manual

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Page 46
4. Support the panel while removing the two top fasteners the
same way the single lower fastener was removed.
5. Carefully lower the side panel to the floor and unplug the internal
power connector (right side only).
6. Once all three fasteners have been removed and the internal power
connector has been disconnected (right side only) you may remove
the panel from the machine
DRIVE CHAIN
1. Remove the bottom cover.
2. Remove the master link from the drive chain.
3. Remove the drive chain from the sprockets.
4. Reinstall the drive chain, ensuring the master link is properly installed.
5. Check the drive chain tension. There should be a total of 1" to
1-1/2" (2.5 to 4.0 cm) of play, up and down, at the slackest point in the
chain. If the drive chain tension needs adjustment, refer to the “Drive
Hub Assembly” section.
!
WARNING
TO REDUCE THE RISK OF INJURY, DO NOT OPERATE THE MACHINE
WHILE THE COVERS ARE REMOVED. DO NOT DEPRESS OR RAISE THE
PEDALS WHILE ANYONE'S HANDS ARE INSIDE THE MACHINE.
!
WARNING
IF THE DRIVE CHAIN IS TOO TIGHT, THE DRIVE TRAIN WILL WEAR
EXCESSIVELY, SHORTENING THE LIFE OF THE DRIVE HUB. IF THE
CHAIN IS TOO LOOSE, THE MACHINE WILL BE NOISY AND WILL
OPERATE AT LESS THAN PEAK EFFICIENCY.
PARTS REMOVAL AND REPLACEMENT