New Holland CX720 Repair Manual page 1694

15. Mount the springs ( 6) and top plate (5).
On the cylinder head, fit the tool (2):
296175, for engine F2B;
296173 and 296174, for engine F3A.
And secure it with the bracket (4) Screw down the
lever (1) until it is possible to mount the cotters (3)
remove the tool (2)
Rocker arm shaft
Check that the mating surfaces have no scoring or
signs of seizing. If they do, replace the damaged
parts.
Check the clearance between the bushings of the
rocker arms and the shaft. If you find the bushings
worn, replace the entire rocker arm.
1 Intake valve rocker arm
3 Exhaust valve rocker arm.
POWER PRODUCTION - ENGINE
15
MID0468A
17
MID0470A
F2B Engine
2 Injector rocker arm
2 4/7/2006
B.10.A / 148
16
MID0469A