Nautilus T618 Service Manual page 78

To reduce the risk of electrical shock or unsupervised usage of the equipment, always unplug the power cord from the
!
wall outlet and wait 5 minutes before cleaning, maintaining or repairing this machine. Place the power cord in a secure
location.
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 from the Motor Cover. Lift and remove the Motor Cover.
3. Using a #2 Phillips screwdriver remove the 2 indicated screws from the
MCB Cover. Lift and remove the MCB Cover.
4. Be sure to observe the distance from the Speed Sensor to the Drive
Pulley. This distance affects the performance 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.
MCB Cover
Belt Tensioner Screw
78
Motor Cover
Motor
Drive Belt
Drive Pulley
Motor
Mount
Speed
Sensor