New Holland CX720 Repair Manual page 2283

Oil pump - Overhaul (B.60.A.20 - F.10.A.40)
CX720, CX740, CX760, CX780, CX820, CX840
1. Loosen and remove the pump face plate by 4 bolts.
Disassemble the pump and discard the O-rings.
2. Inspection and Repair
Wash all parts in a suitable solvent and inspect inside
of pump plate, and body, for excessive wear or dam-
age. If visually okay check in the following manner.
Invert pump plate/rotor assembly, and place outer
rotor over inner rotor. Placing a ruler across top of
both, slide a feeler gauge, between ruler and inner
rotor and measure clearance which must be 0.025-
0.089 mm (0.001-0.0035 in), Fig. 2.
3. Place outer rotor in pump body and check clearance,
by inserting a feeler gauge between the rotor and
body. Check clearance does not exceed a maximum
of 0.55 mm (0.022 in). If exceeded a new pump is
required.
NOTE: If not to specification replace the oil pump, as re-
duced pump pressure through wear could result in reduced
engine life.
POWER PRODUCTION - LUBRICATION SYSTEM
2 4/7/2006
B.60.A / 21
1
TA6010059
2
TA6010060
3
TA6010061