New Holland CX720 Repair Manual page 1698

Valve drive Camshaft - Timing adjust (B.10.A.40.44 - F.45.A.64)
CX860, CX880
1. Apply the tool for flywheel rotation to the gear box, 2:
- 296179 (7) for the F2B engine;
- 296179 (7) and spacer 296180 (6) for the F3A en-
gine.
NOTE: The arrow indicates the direction of rotation of the
working engine.With the above-mentioned tool, turn the en-
gine flywheel, 1, in the direction of rotation of the engine
so as to take the piston of cylinder no.1 to approximately
the T.D.C. in the phase of combustion.This condition is ac-
complished when the hole with one notch, 4, after the hole
with two notches, 5, on the engine flywheel, 1, can be seen
through the inspection window, 3.
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),
on the engine flywheel(4), through the seat (2), of the
engine speed sensor. If this is not the case, orient the
engine flywheel (4), appropriately.
Remove the tool 296192 (1).
POWER PRODUCTION - ENGINE
2 4/7/2006
B.10.A / 152
1
MID0357A
2
MID0358A