Autocontrol 5 / 5.2 Components; Limit Switch; Display Unit - Valtra 6000 Workshop Manual

37. Autocontrol 5 / 5.2
S10
Picture 1. Autocontrol 5 / 5.2 components
1. Reverse shuttle lever/parking brake lever
2. Push buttons in the gear lever knobs for disengaging the
Shuttle electrically (like HiShift. When the buttons are
pressed, the clutch pedal does not move down)
3. Servo valve block of the low pressure circuit. On the
block there are gearbox oil temperature sensor, pressure
accumulator, electro ---proportional valve for the PTO, sole-
noid valves for the hand brake, 4WD and the diff. lock. The
block is presented on pages 420/20C and on page 440/24.
4. Valve block on which there are electro ---proportional
valves for the forward drive (F), reverse drive (R) and for the
DPS rearmost clutch C3. The valve block is presented on
page 440/25.
5. Valve block on which there are electro ---proportional
valves for foremost (C1) and middle (C2) clutches of the
DPS, see also page 440/25.

6. Display unit

7. Position sensor on the clutch pedal
8. Position sensor on the fuel injection pump
9. Auto1/Auto2/Man ---switch for the DPS
9a. Switch for AutoTraction function (AC 5.2 only)
10. Two rpm sensors on the Shuttle
11. Gearbox speed sensor (driving speed)
12. Engine speed sensor
13. Push button for the manual control of the DPS (as AC
2.1)
14. Pressure accumulator
15. Outdoor temperature sensor
16. Hydraulic ram of the parking brake
17. Control unit of AC 5 / 5.2.
18. PTO shaft speed sensor
19. Drive disc on the flywheel (see page 410/4A)
S20
455
Model
1. 10. 1999
6250-- 8950
1. 8. 2000
a

20. Limit switch

IMPORTANT! In the reverse drive controls (TwinTrac) there
is a shuttle/parking brake lever, clutch and gas pedal (and
steering wheel). In AC 5.2 the rear switches have own digi-
tal inputs in the control unit and also clutch pedal sensor
inputs (the rear gas pedal has been connected to the front
pedal with a cable).
Note! On AC 5 / 5.2 there is a position sensor (8) on the
fuel injection pump throttle lever and an engine speed sen-
sor (12) on the gearbox, at which time the automatic speed
change according to the engine loading is possible. The
clutch pedal has a position sensor (7) and a limit switch
(20) to disengage the multi ---disc clutches in the shuttle.
There are two speed sensors (10), which indicate the rota-
tion speed and direction of the shuttle output shaft. The
shuttle rotation speed is compared with the engine rpm so
that the AC 5/5.2 can change the driving direction safety
and progressively. The AC 5 / 5.2 prevents the direction
change, if the driving speed is over 10 km/h. The gearbox
speed sensor (11) indicates the tractor driving speed.
When the driving direction change is happening, the AC
5/5.2 pressurises the shuttle clutches progressively.
On the servo valve block (3) there is a temperature sensor,
which steers the shuttle automatics so that the shuttle func-
tions progressively regardless of the transmission oil tem-
perature.
There is an outdoor temperature sensor (15) in the front
part of the tractor. The display unit (6) is shown on the next
page.
Code Page
370 3