Johnson T8000PRO, Руководство по обслуживанию

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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.