Mec 4069RT - Page 41

Page 36 XX69RT Series - Service & Parts Manual
November 2022Section 7 - Schematics
Identication Description Function
C1 Check Valve Prevents backow to Steer Load Sense Circuit
C2 Check Valve Prevents backow to circuit when LS port is used
I Shuttle Valve Provides load sense signal to Valve A
A Flow Compensator Controls ow in Load Sense Circuit
R1 Relief Valve Main System Pressure Relief
H Flow Regulator Reduces ow to Outriggers, Lift
R2 Relief Valve Limits pressure to Lift Circuit
R3 Relief Valve Limits pressure to Axle Circuit
Z Flow Regulator Reduces ow in Load Sense (Pilot) Circuit
R4 Cross-Port Relief Valve Controls pressure on both Steering Circuits
B Flow Regulator Reduces ow to Steering Circuit
K Sequence Valve Limits pressure to Axle Circuit when S7 energized
S7 Solenoid Valve Bypasses ow to Axle Circuit when elevated
S3 Solenoid Valve Controls ow to Left Axle Cylinder
S4 Solenoid Valve Controls ow to Right Axle Cylinder
S2 Solenoid Valve Controls ow to Lift Cylinder
S1 Solenoid Valve Controls ow directionally to Steer
G Priority Flow Valve Control ow with priority to Axle Circuit
Y Flow Compensator Controls ow through Valve D referencing pressure
D Proportional Valve Controls ow to all function