BT RRE140 - Hydraulics Schematics; Main Valve

Hydraulics schematics
Main valve
Publication No. Date Valid from serial number T-code
261828-040 2008-08-21 6051502 815, 816
© BT Repair Manual RRE140/160/180/200/250 20 – 1
20 – Hydraulics schematics
20.1 Main valve
20.1.1 RRE Std.
MP
M
PH2H3A1B1 B2
Q
7
Q
8
Q3
Dv1
Q2
Q
4
Q9
Q
5
Q6
H1 A2
T
EL M2
A1 Extra function
A2 Extra function
B1 Extra function
B2 Extra function
Dv1 Main pressure limiter 25 MPa
(250 bar)
EL Emergency lowering
H1 Free lift (initial lift)
H2 Main lift
H3 Main lift
M Pressure sensor H1
M2 Measuring point H2-H3
MP Meter outlet, pump pressure P
P Pump connection
Q2 Lift valve, main lift
Q3 Lift valve, free lift (initial lift)
Q4 Lowering valve, main lift
Q5 Lowering valve, free lift (initial lift)
Q6 Reach carriage - In
Q7 Reach carriage - Out
Q8 Extra function, pump pressure for A1
Q9 Extra function, pump pressure for B1
T Tank connection