311
Model Code Page
1. 11. 1998
8450--8750
321 7
32. ACD electro---hydraulic power lift
1. 4. 1997
F. 1. Checking switch panel of ACD
Remove the switch panel from the lever console (do not
disconnect the connector). Switch on currrent and activate
the ACD power lift. Measure from the terminals on the rear
side of the circuit card (DC).
1. Measuring supply voltage
Picture a) Measure supply voltage between terminals 8 ( --- )
and 10 (+): Correct value is 9,2 ---9,8 V (DC).
Note! If the measured value is incorrect. the fault lies in the
connectors.
2. Checking lowering speed selector S7E
Picture b) Measure voltage (DC) between terminals 8 and
6 with all selector positions:
Position Pin 6
1 0 , 4 --- 0 , 6 V
2 0 , 9 --- 1 , 3 V
3 1 , 3 --- 1 , 8 V
4 1 , 9 --- 2 , 4 V
5 2 , 8 --- 3 , 5 V
6 3 , 8 --- 4 , 5 V
7 5 , 0 --- 5 , 6 V
8 6 , 9 --- 7 , 4 V
9 9 , 2 --- 9 , 8 V
3. Checking transport height selector S8E
Picture c) Measure voltage between pins 8 and 5 with all
selector positions:
Position Pin 5
10
2 1 , 1 --- 1 , 5 V
3 2 , 3 --- 2 , 8 V
4 3 , 6 --- 4 , 0 V
5 4 , 8 --- 5 , 2 V
6 6,0---6,6V
7 7 , 2 --- 7 , 8 V
8 8 , 5 --- 9 , 1 V
9 9 , 2 --- 9 , 8 V
4. Draft control selector S9E
Picture d) Measure voltage between pin 8 and 3 with all
selector positions:
Pos. Pin 3
P 9 , 2 --- 9 , 8 V
1 4 , 9 --- 5 , 3 V
2 4 , 0 --- 4 , 4 V
3 3 , 0 --- 3 , 5 V
4 2 , 0 --- 2 , 4 V
5 0 , 9 --- 1 , 3 V
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