10 General Information 25-4 Separating Assemblies Model 2120 Tractor TM-4252 (Dec-70) On tractors equipped with starting fluid adapter: Disconnect starting fluid line at intake manifold. Lift engine out to the front by means of the hoist. CAUTION: Move engine properly in line with drive shaft and hollow drive shaft until these shafts come loose of the driven disks of the engine dual-stage clutch, or free of driven disk and torsion damper if tractor is equipped with a single-stage clutch. On tractors equipped with Thermostart aid: Discon¬ nect cable at heater of intake manifold. Disconnect air vent line of hydraulic oil reservoir at cylinder head cover.
INSTALLATION Align engine properly with drive shaft and hollow drive shaft. Move engine towards rear of tractor. Align splines of both shafts with internal splines of driven disks (tractor with dual-stage clutch), or (if equipped with a single-stage clutch) with splines of driven disk and torsion damper. Align screw holes of flywheel housing with holes in clutch housing. Slide engine evenly towards clutch housing. Engage two dowels of flywheel housing in bores of clutch housing until engine is in full contact with clutch housing. CAUTION: Make sure flywheel housing is flush against clutch housing before tightening cap screws to specified torque.
Secure oil pan to clutch housing, tightening both cap screws to the specified torque. Fig. 5 Separating between Engine and Clutch Housing, L.H. Side Attach dashboard to flywheel housing. 1 Engine attaching screws 2 Speed control rod 3 Shut-off cable Connect speed control rod and shut-off cable to fuel injection pump. Insert flexible tube of coolant temperature gauge in cylinder head and tighten retaining screw. Disconnect speed control rod 2 (fig. 5) and shut- off cables 3 at fuel injection pump. On tractors equipped with an alternator: Disconnect bridge piece from terminals D+, D- and DF and connect harness plug to terminals. Connect cable from starter to terminal B+ on alternator.
On tractors with muffler facing downwards: Remove muffler. Screw retaining screw of flexible tube of coolant temperature gauge out of cylinder head and withdraw from cylinder head. On tractors equipped with a generator: Connect cables from starter and generator indicator lamp to regulator. Remove left dash panel as well as both batteries. Remove cap screws attaching dashboard to flywheel housing. Connect cables to starter. Connect cables to signal horn and oil pressure warning switch. Attach JD 244-1 and 244-2 engine lifting eyes to cylinder head and attach engine to a suitable hoist. Install both batteries. Remove cap screws 1 (figs.
4 and 5) attaching flywheel housing to clutch housing and both cap screws securing oil pan to clutch housing. Printed in Germany