Engine and Upper Machine Components Rammer Repair80 wc_tx001546gb.fm4.27 Clutch (DS 720 only)See Graphic: wc_gr001319rmRecommended ToolsImpact wrenchTorque wrenchNeedle-nose pliersClutch puller P/N 0153566Removal4.27.1 Remove the engine from the rammer.4.27.2 Check the condition of the clutch shoes (a) and replace them ifnecessary. The clutch shoes should be absolutely dry. If oil is present,inspect the engine shaft seal.4.27.3 Prevent the clutch from turning and use an air impact wrench to loosenthe clutch bolt (b). If an impact wrench is not available, rap the wrenchhandle sharply to help break the bolt loose.Note: Loosen the bolt but do not completely remove it from the enginecrankshaft. This will protect the crankshaft threads from the clutchpuller screw.4.27.4 Screw the clutch puller (P/N 0153566) (c) (or other suitable puller) intothe small holes in the clutch and turn the center screw against the endof the crankshaft until the clutch hub breaks free of the taper.Note: When reinstalling the clutch, make sure the taper in the clutchhub and on the engine crankshaft is absolutely free of any oil orgrease.Installation4.27.5 Place the clutch on the engine crankshaft.4.27.6 Reinstall the clutch bolt and torque to 27 Nm (20 ft.lbs.).4.27.7 Reinstall the engine on the crankcase. Torque the screws to 49 Nm (36ft.lbs.).4.27.8 Perform an operation check. The clutch should be disengaged with thethrottle at the idle position.Engine Speed (idle) (rpm): 1200 ± 200Clutch Engagement (rpm): 2000 ± 200
