Valtra 6550 - AC 5 and 5.2, Description; AC 5; 5.2 Control Buttons and Levers

1. Reverse shuttle lever/hand brake lever on the LH side of the steering wheel (or alternatively on the RH side). The parking
brake must always be engaged, when the tractor is parked.
2. The button for pre---programming the DPS speed when the tractor driving direction is changed (this button is also used
when testing AC 5 or when carrying out settings).
3. Push buttons for the manual control of DPS (as earlier) (these buttons are also used in the test mode and setting mode).
4. Push buttons for disengaging the reverse shuttle (function as in HiShift, but the clutch pedal is not depressed). The tractor
has also the clutch pedal for the electrical disengagement of the HiTech shuttle and for normal driving with the pedal.
5. Three---position rocker switch for selecting manual or automatical speed change of the DPS (man/auto1/auto2) (as on
AC III).
5a. Switch for AutoTraction function, AC 5.2 only.
6.
A
C5
/
5.2 dis
p
la
y
unit, see
p
a
g
e4.
1
2
4
3
1
4
1
6
2
3
TwinTrac
(option)
5
5a
454
Model Code Page
37. Autocontrol 5 / 5.2
1. 8. 2000
370 2
6250--8950
1. 10. 1999
1. AC 5 and 5.2, description
Autocontrol 5 (---K41106) or 5.2 (K41107---) includes:
--- Electric engagement control of HiTech shuttle
--- E n g a g e m en t co n tr o l of DP S a n d PT O w i t h e l e ct r o --- p r o p o r ti o n a l v a l v es
--- Automatic speed change of DPS. AC 5.2: Additionally AutoTraction and Speed Matching functions of DPS.
--- Autocontrol 5/5.2 display unit
--- AC 5/5.2 control unit (in the lever console) and required sensors and wires.
--- Fault diagnostic functions and setting procedures.
Autocontrol 5/5.2 can be fitted on 6250---8950 HiTech tractors. In these tractors the separate circuit card A10 for the DPS is
removed (see Autocontrol 2.1 and 2.2).
Autocontrol 5/5.2 system includes a display unit which shows functions of transmission, helps with manual gear change and
shows a fault code if the system has malfunctions. The display is also used, when testings and settings are carried out.
A. AC 5 / 5.2 control buttons and levers