TM 9-2320-361-34 3-5. FLYWHEEL AND TRANSMISSION ADAPTER PLATE MAINTENANCE (Contd) CAUTION Alinement mark on flywheel must be matched with X marked on crankshaft during installation. Incorrect positioning of flywheel on crankshaft will not allow installation of all six screws in flywheel and crankshaft. Do not attempt to install screws if screws will not turn easily when starting in threaded holes in crankshaft. Serious damage to equipment may result when engine is operated. NOTE An alinement drill point or punch mark can be located on the backside of flywheel approximately two and one-half inches out from one of six screw holes. 2. Locate alinement mark on the backside of flywheel (10). Use an erasable marking device and mark the corresponding hole (9) at the clutch disc side of flywheel (10). 3. Aline the marked hole (9) with guide screw and seat flywheel (10) against crankshaft (3) 4. Install five of six new lockscrews (8) in flywheel (10) and crankshaft (3). 5. Remove guide screw from crankshaft (3) and flywheel (10). 6. Install new lockscrew (8) in flywheel (10) and crankshaft (3). 7. Tighten six lockscrews (8) 80-90 lb-ft (109-122 N.m). Repeat tightening until 115-120 lb-ft (156-163 N.m) is achieved. e. Adapter Plate Installation 1. Position new gasket (4) on flywheel housing studs (2). 2. Install adapter plate (7) on flywheel housing(1) with thirteen new lockwashers (5) and nuts (6). FOLLOW-ON TASKS: . Install clutch disc and pressure plate (para. 4-l). ● Connect battery ground cable (TM 9-2320-361-20). ● Wheels unchocked (TM 9-2320-361-10). 3-15