Nautilus T624 Service Manual page 86

To reduce the risk of electrical shock or unsupervised usage of the equipment, always unplug the power cord from the wall outlet
!
and the machine and wait 5 minutes before cleaning, maintaining or repairing the machine. Place the power cord in a secure
location.
Note: The Nautilus™ T626 is used in the following images. The procedure
is the same for the Nautilus™ T624/T684/T686 and Schwinn
models.
1. Unplug the power cord from the machine and wait 5 minutes. Place the
power cord in a secure location.
2. Using a #2 Phillips screwdriver remove the 4 indicated screws, and two
additional screws on the far side, from the Motor Cover and remove it.
3. Using a #2 Phillips screwdriver remove the 2 indicated screws from the
MCB Cover and remove it.
4. Be sure to observe the distance from the Speed Sensor to the Drive
Pulley. This distance affects the effectiveness of the Speed Sensor, and
can easily be shifted accidentally during replacement procedures.
5. Using a 6mm hex wrench, loosen the indicated screws on the Motor
Mount.
6. Using a 13mm Open Ended Wrench, rotate the Belt Tensioner Screw
enough to loosen the Drive Belt.
Note: to assist with reassembly, be sure to record the number of threads
exposed before loosening.
530/570
®
86
Motor Cover
MCB Cover
Drive Belt
Drive Pulley
Belt Tensioner Screw
Motor
Mount
Speed
Sensor