Notice:It only exert pressure to skidding point when tighten the delivery belt. tighten thedelivery belt over will damage the bearing of delivery belt--- Tighten the screw of tightness pulley again--- Reinstall the paper feeding table5.1.2 Inspecting the abrasion of delivery beltIt will cause abrasion after a long time work .when the weave of the belt can besaw, you should replace the belt.--- Inform of the sale-after service department--- Replace the delivery belt5.1.3 Cleaning the delivery beltInspect the delivery belt once a month--- Shut down--- Remove paper feeding table and control panel front of tightness belt.--- Cleaning dust and waste--- Reinstall paper feeding table and control panel5.2 Inspecting the tightness of chain beltInspecting the new machine once a week in the first month, then once a month--- Shut down--- Remove left cover--- The chain must droop 4mm to 10 mmWhen the tightness of chain need tighten--- Loosen the tightness screw until the chain droop up to 4mm to 10 mm--- Tighten the screw--- Put left cover in original place20