Flywheel And Housing - Perkins New 1000 Series Workshop Manual

New 1000 Series
13

Flywheel and housing

13
General description
The steel flywheel is fitted with a hardened starter ring. Generally the starter rings have 126 or 115 teeth.
The flywheel housing is normally made of cast iron, but certain flywheel housings are made of aluminium alloy.
Flywheel
To remove and to fit Operation 13-1
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.
A B
A0279 A0280
Workshop Manual, TPD 1350E, Issue 4 311
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