15 DISCO 8500 C-6 = 695SL, 8500 C-8 = 820-880, JAGUAR 8500 C - Hydraulic system Overall circuit diagram 38321
Description of function Set from transport to working position
402275
Step
120
Action
Reaction
1
Switch 2 on the de-energised is actuated to the right
Solenoid valve 50 switches to position B. Volume flow flows to solenoid valves 71, 72, 73,74.
2
Solenoid valve 72 is energised
The applied volume flow flows to cylinder 103. The front mower unit raises to the end position = Pressure rises, oil pressure switch 93 switches at 150 bar
3
Solenoid valves 70 and 71 are energised
Volume flow flows via solenoid valve 71 into the rod spaces of cylinders 91 and 92.
4
The displaced volume flow from the ram top spaces flows into the tank via the energised solenoid valve 70.
The side-mounted mower units swing in. The lock can be released.
5
Switch 2 on the CCT is actuated to the left
Solenoid valve 50 switches to position A. The solenoid valves 70 and 71 are energised. This makes volume flow flow through solenoid valves 70: - into cylinders 82 and 85 (also through the non-return valves 81 and 84). - into cylinders 91 and 92. The side-mounted mower units have now swung out and the starting protections are activated
6
The cylinders travel against the limit stop.
Pressure switch 95 switches at a pressure of 150 bar.
7
Solenoid valve 72 is energised
Volume flow from cylinder 103 flows through 72 and solenoid valve 50 (position A) into the tank. The front mower unit is lowered.
8
The switch console (switch 3) provides the lower command for the left mower unit.
Solenoid valve 50 switches to position A Solenoid valve 73 is energised.
9
Volume flow from cylinder 100 flows into the tank
The left side-mounted mower unit is lowered.
10
The switch console (switch 4) provides the lower command for the right mower unit
Solenoid valve 50 switches to position ASolenoid valve 74 is energised.
11
Volume flow from cylinder 90 flows into the tank.
The right side-mounted mower unit is lowered.
00 0290 120 0 - SYS DISCO - 09/08
