How to adjust belt mistracking caused by installation issues

I. Preparation
Shut down the machine, disconnect the power, and implement safety lockout procedures; use a laser alignment tool to mark the conveyor's reference centerline.
Prepare a wrench, tape measure, and spirit level; ensure all components are secure before commencing work.
II. Key Step-by-Step Adjustments
1. Pulley Parallelism Calibration
Use a laser alignment tool to check the levelness of the drive and driven pulleys, keeping the error within 3mm. If the belt drifts to one side, slightly adjust the tensioning screw on that side-turning no more than a quarter-turn at a time-to ensure the axes of both pulleys are perfectly parallel.
2. Idler Set Alignment
Shift the idler sets in the mistracking section slightly forward in the direction opposite to the belt's drift (relative to the direction of travel). Limit the adjustment to no more than 5mm per set, and ensure the perpendicularity error between the idler axes and the belt centerline remains within ±2mm.
3. Frame Leveling
Check the conveyor frame with a spirit level; use anchor bolts to level any tilted sections and eliminate lateral force imbalances caused by frame deformation.
4. Belt Joint Calibration
If a skewed joint causes unequal edge lengths, realign the belt ends and re-vulcanize the joint, ensuring the difference in length between the two sides does not exceed 2mm.
III. Verification and Completion
Run the conveyor without a load for 10 minutes to ensure the belt remains centered throughout its travel; then, conduct a trial run under load to confirm there is no mistracking, thereby completing the adjustment process.