WP 1550 Maintenancewpm_tx001126gb.fm 254.2 Cleaning PlateClean plate after use to remove dirt, stones, and mud caught under theengine console. If plate is being used in a dusty area, check enginecylinder cooling fins for heavy dirt accumulation. Keep engine cylinderfins clean to prevent engine from overheating.4.3 Drive BeltSee Graphic: wc_gr000077On new machines or after installing a new belt, check belt tension afterfirst 20 hours of operation. Check and adjust belt every 50 hoursthereafter.To change the belt:4.3.1 Remove the beltguard and remove the four hex nuts (a) holding pulleyhalves (b) together. Remove outer pulley half and remove belt.4.3.2 Install new belt on pulley and secure pulley halves together with hexnuts. Adjust tension on belt by adding or removing spacers (c)between pulley halves. The fewer spacers used between pulleyhalves, the tighter the belt will be. Three spacers with new Wackerbelts should provide the correct tension. Belt deflection should be 6–10 mm, checked half way between the clutch pulley and the exciterpulley (d). Place unused spacers on outside of pulley.4.3.3 Replace beltguard.wc_gr000077abcd