Hydraulic / Electric System DISCO 8550C (Tractor) TIC
2-4 10/04
2.0 Electric System
2.1 Electric circuit diagram
1 Connector – tractor connection
2 Control terminal
3 Cable connections
4 4-pin connector for control terminal – basic machine
5 Oil pressure switch
6 Solenoid valve on cylinder, left
7 Solenoid valve on cylinder, right
Activating / deactivating the
transport stop
Deactivating the transport
stop
Press both “0” keys simultaneously. Both LEDs (L) light up; the two
2/2 way solenoid valves (6 and 7) on the cylinder are energized and are
open.
Activating the transport stop Raise all mower units. This makes the system pressure rise; at 190 bar,
the oil pressure switch (4) activates the transport stop automatically. Both
LEDs have gone out.
or
The transport stop is active whenever one of the two "0" keys is pressed.
Both LEDs have gone out.
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