New Holland CX720 Repair Manual page 2511

Pump Charge pressure relief valve - Remove (C.20.F.20.10 -
F.10.A.10)
NOTE: Before removing the screw-adjustable relief valve plug, mark the plug, locknut, and housing to approximately
maintain the original adjustment when assembling.
1. Remove the screw-adjustable charge relief valve
plug by loosening the locknut with a 1-1/16 in wrench
and unscrewing the plug (1) with a large screwdriver.
2. Remove the spring (1) and relief valve poppet (2).
3. Inspect the poppet and mating seat in the end cap
for damage or foreign material.
POWER TRAIN - TRANSMISSION Hydrostatic
2 4/7/2006
C.20.F / 59
1
40013252
2
40013253
3
40013254