49
Model Code Page
21. Engine
1. 11. 1998
6000--8750
211 7
1. 8. 1998
C. Changing starter ring gear on flywheel
If the ring gear is worn, change it with a new one. The ring gear
cannotbe turned around because its teeth are chamferedand
hardened on the starter motor side.
1. Split the tractor at clutch (see Op 411 1A). Detach the clutch
assembly (and possible turbine clutch) and the flywheel.
1. Detach the earlier ring gear by tapping it with a drift. Clean
the ring gear seat on the flywheel with a steel---wire brush.
2. Warm the ring gear to the temperature of 150 ---200˚C.Fit
the ring gear with the inner diameter chamfering turned
against the flywheel and the teeth chamfering against the
starter motor.
3. Allow the ring gear to cool freely without using any coolant.
D. Fitting the flywheel
1. Clean the contact surfaces on the crankshaft rear flange
and on the flywheel.
2. Fasten the flywheel to the crankshaft rear end. As a guide
pins can be used studs (M12, 2 pcs) which are screwed in to
the flywheel fixing bolt holes.
Note! On the flywheel there is a fuel injection timing mark. Fit
the flywheel in the right position according to the guide pins.
Note! In the E---engines there is an injection timing register
mark on the flywheel and the flywheel has been positioned
with a guide sleeve to the crankshaft.
3. Tighten the flywheel fixing bo lts evenly to a to rque o f 140
Nm (10.9) or 160 Nm (12.9).
Note! If a flywheel must be changed on the E---engines, an
injection timing mark must be made on a new flywheel as
follows:
--- Rotate the crankshaft so that the piston in the first cylin-
der is in the top dead centre. Drop a valve down against t he
piston top. Place a dial gauge stylus against the valve
upper end and zero the gauge to the top dead centre.
Rotate the crankshaft in the running direction until the dial
gauge shows value 4,633 mm after the top dead centre
(420, 620) or 5,307 mm after the top dead centre (634).
--- Drill the injection timing mark in the flywheel with the aid
of a drill shown below.
7
5mmdrill
8mmguide
https://www.truck-manuals.net/
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