New Holland CX720 Repair Manual page 2206

Thermostat - Remove (B.50.A.18 - F.10.A.10)
CX720, CX740, CX760, CX780, CX820, CX840
1. THERMOSTAT
Removal
Drain the coolant system below that of the level of
the thermostat housing.
Remove the thermostat housing and withdraw the
two thermostats.
POWER PRODUCTION - ENGINE COOLANT SYSTEM
2 4/7/2006
B.50.A / 16
1
BSD1857A