Johnson T7000 PRO, Service Manual

Page: 37 / 56

37
Noises generated under motor cover
Possible causes:
1. The running belt tension is adjusted too tight.
2. The bearing of front roller is not installed correctly.
3. Dirty grooves of drive belt.
4. The motor is damaged.
Fix:
1. Adjust the belt tension so that the belt does not start slipping and
then check if the noise has disappeared.
Let the treadmill run, without
using it, for at least 5 days
because sometimes the bearing
will settle and become quiet
then check if the noise has
disappeared.
2. Replace the front roller with a new one to see if the noise disappear.
3. Remove drive-belt and check the grooves in belt for dirt or dust and
clean if necessary. Clean also the motor pulley and the roller pulley
grooves and check if the noise has disappeared.
4. The motor bearing is damaged.
Replace the motor.