New Holland CX720 Repair Manual page 2286

Oil pressure regulator valve - Remove (B.60.A.25 - F.10.A.10)
CX720, CX740, CX760, CX780, CX820, CX840
1. Removal
Remove plug (3) spring (2) and valve (1) To en-
sure correct operation of the pressure relief valve,
check spring length, Free length = 52.8 mm (2.08 in
). Compressed length = 37.0 mm (1.46 in) using a
weight of 15.6 kgs (34.3 lbs).
Clean assembly in a suitable solvent and ensure all
ports are free of dirt.
Check the parts for damage, wear, and replace as
necessary. Failure to do so could result in premature
wear to the engine, due to oil bypassing the filter and
returning back to the system.
POWER PRODUCTION - LUBRICATION SYSTEM
2 4/7/2006
B.60.A / 24
1
396-E-18_768