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ST14
D/H & Steering System
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COMMITTED TO SUSTAINABLE PRODUCTIVITY
We stand by our responsibilities towards our customers,
towards the environment and the people around us.We make performance stand the test of time. This is what
we callSustainable Productivity.
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HYDRAULIC COMPONENTS
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SCHEMATICS
Steering
Tank
LS Pumps
Dump & Hoist
EOD
Emergency
steering
system
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STEERING
Front lightHigh/Low Rear lightHigh/Low
Horn Camera
(Option)
Load weighing
and
Bucket count
rightleft
Steering lever
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ST14 DUMP AND HOIST
Forward Reverse
Bucket float Ride ctrl
Neutral & EoD
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SPARE PARTS STEERING CYLINDER
CST
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SPARE PARTS HOIST CYLINDER
Boom CBL
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SPARE PARTS STAB CYL INDER
Bucket CBT
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SPARE PARTS D/H & STEERING VALVE
1. Top plate/ inlet section
2. K220 section
3. K220 section
4. Combi inlet section
5. L90 section
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SECTIONS VMC VALVET1
P1
P2
LS
PX
PL
PS
Hoist cyl sectionsStab cyl sections
Steering, EoD &
emergency steering sections
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Compensating
spoolD/H will have same flow.
When the demand for oilflow is to high
Priority valveWill always give priority
to Steering
Solenoids
Main relief valveWill take care of rapidly
pressure pikes when a spool
is open / closing very fast and
it will also work as a security
valve if the pump regulator
will break down.
Port relief
valve withanti cavitations
check valves
LS Cut off
pressure valve
K220Combi inlet
L90
Counter
pressure
valveTo keep 5 bar inside
D/H & Steering valvetank line
Pilot pressure reducer
Copy spoolCopy the internal
LS pressure to
pump so the pump
delivers correct
pressure to reduce
dip to cyl
DIAGRAM VMC VALVE
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COMB I INLET SECTION
Pilot
pressure
reducer
LS Cut off pressure valve
Copy
spool
Main relief
valve
Counter
pressure
valve
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K220 SECTION
Dump & HoistSolenoids
Compensating
spool
Port relief
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L90 SECTION
SteeringSolenoids
Port relief
Pressure
limiting valve
(EOD)
Priority valve
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GENERAL FUNCTION LS SYSTEM
P
LS
Delta P
100 bar
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PUMPS
To D/H & Steering valve
20
285Cut off
Pressure
Standby
Pressure
20 bar
100 bar
120 bar
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PILOT PRESSURE REDUCER
Plug
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LS CUT OF PRESSURE VALVE
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COMMITTED TO
SUSTAINABLEPRODUCTIVITY.
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