Ls Control 1 - Kubota KX080-3 Workshop Manual

WSM KX080-3 Mechanism

1. LS control 1

P = P + P + P
PS LS F P
Pps
Pmax
Pc
Ppa
Pp
Ppb
P
LS
LS-control valve
When the machine is working under the stable load condition, load sensing pressure (PLS) and pump swash
plate angle are at certain stable values.
Therefore, LS control spool stays balancing according to the following equation.
P = P + P + P
PS LS F P
Then the control pin stays at the stable position to keep the swash plate for required pump delivery.
( P = P - P )
P Pb Pa
IV-M-18
P Pav Pmax Pc
3
IV Hydraulic System