04. ST14 V1.2 DH - Steering System

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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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04. ST14 V1.2 DH - Steering System

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