New Holland CX720 Repair Manual page 2801

Control valve - Remove (D.14.E.14 - F.10.A.10)
NOTE: The drain valve is included in the following procedure and is considered a part of the E-II valve
NOTE: The E-T II valve is not serviceable except for the electronic solenoid valve and the hydraulic line fitting O rings.
If the valve is suspected to be defective, refer to Control valve - Static description (D.14.E.14 - C.30.A.20) to test
the E-T II valve.
NOTE: Hydraulic fluid will leak from hydraulic lines when disconnected. Use a suitable container to catch the hydraulic
fluid that drains from the lines.
1. Removal
2. Park the combine on a level surface and remove the
key from the ignition switch. Engage the parking
brake. Disconnect the negative (-) battery cable from
the battery.
3. Thoroughly clean grease and dirt from the E-T II
valve and drain valve to avoid getting contaminants
in the valves and the hydraulic system.
Disconnect the wiring harness electrical connection,
1, from the E-T II valve solenoid.
Disconnect the forward (2) and reverse (3) pressure
supply lines from the E-T II valve.
Disconnect the forward (4) and reverse (5) hydraulic
lines for the left wheel motor from the E-T II valve.
IMPORTANT: Identify hydraulic line connections before
disconnecting the lines to avoid confusion upon installation
of the E-T II valve.
4. Disconnect the left wheel motor case drain line (6)
and the drain line (7) to the cooling circuit of the hy-
drostatic system.
5. Disconnect the forward (1) and reverse (2) hydraulic
lines for the right wheel motor from the E-T II valve.
Disconnect the right wheel motor case drain line (3)
and the valve drain return-to-reservoir line (4) from
the E-T II valve.
Remove the bolts which secure the E-T II valve and
drain valve to the mounting bracket.
TRAVELLING - 2WD-4WD SYSTEM Hydrostatic
2 4/7/2006
D.14.E / 47
1
20016086_1017
2
50016087_1018