: Universal vacuum stream feeder with a pre-loading capacity of up to 450 mm. 2. Main Cylinder Alignment and Timing

Despite your best efforts, some problems require an expert's touch. Specifically, you should seek professional assistance for:

The suction feet lift sheets from the stack and move them forward.

Check the tension of the main drive motor belt; adjust the motor mounting plate if the belt deflects more than 10mm.

Check the delivery transfer point: the delivery chain grippers must close on the leading edge of the paper at the exact moment the impression cylinder grippers open. A overlap mistake here will tear the front edge of the paper. Troubleshooting Common Mechanical Failures Probable Cause Corrective Action Paper wrinkles in the press Uneven front guide timing Re-align the front guide cams using the timing disk. Double sheeting (two sheets feed) Failed separator fingers or weak blow