Valtra VALMET 6000, Workshop Manual

Page: 333 / 1361

304
Model Code Page
32. ACB / ACD electro---hydraulic power lift
1. 11. 1998
8450--8750
321 2
1. 8. 1998
B. Position sensor, ACB and ACD
SIGNAL
SUPPLY
Picture 2. Position sensor on ACB/ACD power lift
4. Permatex Super 300 to threads
5. Locking nut
6. In---built amplifier
Connector A:
1. Earth wire
2. Signal wire
3. Supply wire
Direct current (DC) is fed into the ACD position sensor (ear-
lier alternating current).
U
Supply
= 9,5±0,3 V
DC
U
SIGNal
= 25---75 % x U
Supply
(lower links down---up)
The position sensor connector is fitted at the end of the
sensor.
Note! The positon sensor cannot be repaired but a defect
sensor must be changed for a new one.
Important! Fault code number 22 indicates, that the posi-
tion sensor does not function. Diagnostic light and fault
codes, see the following instr. C .
Measuring position sensor supply and signal
voltages
Sensor voltages can be measured as earlier by using spe-
cial tool ETV 894 100 and a universal instrument, see page
320/13 .
Measuring values
--- Supply voltage 9,2---9,8 V
DC
. . . . . . . . . . . . . . .
--- Signal, lower links down
2,3---2,5 V
DC
. . . . . . .
--- Signal, lower links up 6,9---7,4 V
DC
. . . . . . . . . .
Adjusting position sensor
, see page 321/9