New Holland CX720 Repair Manual page 2595

PROCESS DRIVE Primary process drive - Assemble (C.50.B -
F.10.A.20)
1. Heat the thresher shaft outer bearing (1) in an oven
to 80-85 °C (170-180 °F).
Insert the thresher shaft (2) from inside the housing
and brace it against the inner wall of the housing by
means of blocking (3).
Drop the heated bearing onto the installed shaft with
the tapered end down. Ensure that the bearing slides
down the shaft evenly.
NOTE: The bearing is very hot!
2. Turn the slotted nut (1) onto the thresher shaft finger
tight. Mark the nut and shaft so that their relative
positions can be monitored.
Turn the thresher shaft while applying light blows to
the housing in order to set the bearings.
3. Hold the shaft from turning with a pin spanner on the
flanged end of the shaft. Tighten the slotted nut to
produce a rolling torque on the thresher shaft of 1250
- 1500 Nmm (11-13 in.lbs. ).
NOTE: The slotted nut must be tightened in small incre-
ments. Due to the tight fit of the bearing, it will be difficult
to loosen the bearing if running torque becomes excessive.
POWER TRAIN - PROCESS DRIVE Primary process drive
2 4/7/2006
C.50.B / 31
1
10006336
2
10006337
3
10006338