Cardiac Science ST 55 Service Manual page 67

Repair/Replacement and Calibration
Rear Roller Guard Adjustment
Check the position of the rear roller guards each time you readjust the belt tracking or the
belt tension. The roller guards are located at the rear of the treadmill between the rear
roller and the deck. Adjust the guards when the gap between the roller and the guard
exceeds 3/8 in. (9.5 mm).
Loosen, but do not remove, the two screws attaching the rear roller guard to the deck
1.
(hold the nuts on the underside of the deck frame with your finger).
Slide the rear roller guard towards the rear roller until the gap between the two is
2.
approximately 3/16 inch.
Tighten the mounting screws loosened in step 1.
3.
WARNING! Falling hazard.
Do not let anyone stand on the treadmill belt when it is started.
Use the controls on the stress monitor to turn on the treadmill.
4.
70-00298-01 A
5-34
TM 55/65 Treadmill 4.0