Case IH MAXXUM 100, Service Manual

Page: 65 / 81

HYDRAULIC - PNEUMATIC - ELECTRICAL - ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER
SYSTEM
BSE2868B
42
Load Sensing Shuttle Valve.
Located in each remote valve slice, the Electronic Draft Control valve and between the trailer brake valve, front sus-
pension valve and mid-mounted valves, where fitted, is the load sensing shuttle valve
(2) . This allows the function
with the highest pressure demand to send sensing pressure to the load sensing valve, Figure 44 , on the variable
displacement pump.
BSB0388A_436
43
1. Valve Body
2. Flow Compensating Valve
3. Pressure Compensator Valve
4. Load Sensing Line
BSE3660A
44
With Reference to PRIMARY HYDRAULIC POWER SYSTEM - Overview (A.10.A) .
Operation of the closed centre high pressure hydraulic circuit is as follows:-
The components in the high pressure hydraulic circuit are connected by their load sensing lines to the hydraulic load
sensing valve which controls the output of the hydraulic pump.
When the trailer brakes, remote control valves, hydraulic lift or front axle suspension (where fitted) are operating, the
load sensing valve on variable flow piston pump, compares the pressure in the component load sense line with the
output pressure of the hydraulic pump.
84276322A 31/05/2010
A.10.A / 30