FLYWHEEL AND FLYWHEEL HOUSING 22
Flywheel
To remove and to fit22A-01
Warning! The flywheel is heavy, use lift equipment
or get help to assist with the lift operation before
removal of the flywheel fasteners.
To remove
1 Remove two opposite setscrews from the
flywheel and fit temporarily two guide studs to
ensure safety when the flywheel is removed and
fitted.
2 Remove the remainder of the setscrews and
washers and remove the flywheel.
3 Check the flywheel and ring gear for damage and
renew, if necessary.
To fit
1 Ensure that the location faces of the crankshaft
and the flywheel are clean and free from damage.
2 Fit the flywheel over the guide studs. Fit four
setscrews and their washers. Remove the guide
studs and fit the remainder of the setscrews and
the washers. Tighten the setscrews to 105 Nm
(77 lbf ft) 10,7 kgf m.
3 Check the flywheel run-out with a dial test
indicator (A). This must be less than 0,30 mm
(0.012 in) total indicator reading.
4 Check the alignment of the flywheel face (B).
The error in alignment must not be more than 0,03
mm (0.001 in) total indicator reading for every
25 mm (1.0 in) of the flywheel radius from the
crankshaft axis to the indicator plunger. During this
check, keep the crankshaft pressed toward the
front to remove the effect of crankshaft end-float.
Ring gear
To remove and to fit22A-02
To remove
Warning! wear eye protection during this operation.
Before the ring gear is removed, check the position
of the chamfer on the teeth.To remove the ring
gear use a hammer and a chisel to break the ring.
Ensure that the flywheel is not damaged during this
operation.
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PA279
PA280
To fit
The ring gear is heated onto the flywheel. When a
new gear is to be fitted, ensure that it is not heated
to more than 250°C (480°F). Ensure that the
chamfer on the teeth of the gear is in the correct
direction.
Perkins Phaser/1000 Series, April 1995 22A.03
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