New Holland CX720 Repair Manual page 1902

2. The exact position of the piston of cylinder no. (1) at
the T.D.C. is obtained when, in the above-described
conditions, the tool 296192 (1), enters the hole (3),
in the engine flywheel (4), through the seat (2), of the
engine speed sensor.
If this is not the case, turn the engine flywheel (4),
appropriately.
Remove the tool 296192 (1).
From the engine bay
3. Take out the fixing screws and remove the tappet
cover.
Disconnect the fuel pipes from the fuel filter and from
the cylinder head.
Unhook the springs (3) lever check (2) engine F3A
only.
Unscrew the rocker arm shaft fixing screws (1).
4. With tool 296170 (2) constrain the sliding blocks (3)
to the rocker arms (1).
POWER PRODUCTION - FUEL AND INJECTION SYSTEM
2 4/7/2006
B.20.A / 72
2
MID0511A
3
MID0512A
4
MID0513A