Valtra MEGA MEZZO HI-TEC Workshop Manual - page 10
706
Model
Code
Page
42. Gearbox
1. 8. 1998
6000--8750
423
2
8. 11. 1990
11. Disconnect the control valve solenoid wires on the gear-
box side cover. Disconnect oil hoses from the pressure filter.
Note!
It is easier to disconnect and connect the hoses if the
pressure filter is removed. Pressure filter is fitted under the cab
floor on the RH side front corner.
12. Remove the hose clip (on RH side), which binds twohoses
(one hose is connected to the pump side of the valve block set
and another to the pump pressure connection).
13. Remove the brake cylinder fixing bolts (at the rear of the
tractor) and free the cylinders and support them to the cab
floor. Release the parking brake cable from its mechanism.
14. Disconnect the hydraulic power lift sensor connectors in
the lever console in the cab (remove console side panel).
Remove also the lead---in plate for the wires.
15. Disconnect the sensor wires from the servo valve block on
the LH side of the gearbox. Disconnect hoses and pipes (on
the LH side) which prevent splitting.
16. Disconnect the wires from the solenoid valves on the servo
valve block (on LH side).
17. Fit the RH side rear wheel.
ET 893 480
18. Fit supports ET 893480 on the front axle (on both sides)
to prevent front axle oscillation.
19. Fit a steady trestle under the fuel tank. Fit a trestle fitted
with castors under the gearbox front edge and under the
towing hook.
20. Open the bolted joint between gearbox---fuel tank (on RH
side, disconnect the control valve hoses for easier work).
21. Part the tractor by pushing at the rear wheels. If the tractor
has big rear wheels the rear mudguards should be removed.
Note!
Make sure that every hydraulic pipes have been relea-
sed. Disconnect the front end of the hose to the priority valve
and remove the hose between the valve block set and the
control valve of the hydraulic lift.
1
1
2
3
22. Remove the rear wheels, rear axles (1), quick shift gear (2)
and reverse shuttle (3) from the transmission unit. Place the
gearbox in the fitting stand.
N.B.
Label all detached parts and pipes from the transmission
unit for easier assembling.