Joy Sport Master User Manual page 15

5. Adjust slanted running belt
All running belt are adjusted before the treadmill leaving the factory or after assembling,
but after a period of time of use, the belt will become slanting, this circumstance is out of
guarantee to keep it in good repair, the user adjust it by oneself. The slanting running belt
will strictly harm itself, so the user must adjust it once find this circumstance.
The method of adjusting:
Cast off Cas