New Holland CX720 Repair Manual page 1725

POWER PRODUCTION - ENGINE
8. PRELIMINARY APPRAISAL OF DATA TO MAKE
THE SELECTION
For each of the pins of the crankshaft, it is necessary
to carry out the following:
Main journals
- determine the class of diameter of the seat in the
crankcase;
- determine the class of diameter of the main journal;
- choose the class of half bearings to fit.
Crankpins
- determine the class of diameter of the seat in the
connecting rod;
- determine the class of diameter of the crankpin;
- choose the class of half bearings to fit.
Selecting small end bearings (pins with nominal di-
ameter)
Two sets of Figs. are marked on the front of the
crankcase, in the position shown, (Fig. 11 at top):
- a four-digit number represents the coupling number
of the crankcase with its respective sub-crankcase;
- the following seven digits, taken singly, represent
the class of diameter of each of the main bearing
seats to which they refer, (Fig. 11 at bottom);
- each of these digits may be 1, 2 or 3.
2 4/7/2006
B.10.A / 179