3/3 Way Solenoid Valve (Open/Close Tailgate) - Claas QUANTUM 3500 Service Parts

Hydraulics
3.5

3/3 way solenoid valve (open/close tailgate)

Key to diagram
Tailgate function
Neutral
Lifting
Lowering
11-56
QUANTUM
5 3/2 way open knife frame solenoid valve
6 3/2 way close knife frame solenoid valve
7 3/2 way open tailgate solenoid valve
8 3/2 way close tailgate solenoid valve
9 3/2 way tailgate pressureless solenoid valve
10 3/2 way lower articulated drawbar solenoid valve
11 3/2 way raise articulated drawbar solenoid valve
19 3/2 way tailgate pressure solenoid valve
A Working cylinder
H Lift valve
P Pump
S Lower valve
T Tank
The master valve (14) and the solenoid valves switched off.
The locked pressure from the working cylinder is applied to the closed
ball of valve insert S.
The solenoid coils (7, 9 and 14) switch.
Pilot spool H opens the ball.
Oil flows from P to port A via the ball.
The oil flows to the hydraulic cylinders. The hydraulic cylinders extend.
The solenoid coils (8 and 9) switch. Pilot spool S opens the ball.
Oil flows from A to valve insert H via the ball.
The pilot spool moves upwards and clears the return line to port T. The
hydraulic cylinders retract.
TIC
10/04