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World Harvester Parts HST Pump Motor Assigment Plate

The Motor Valve Plate is an important core component of the motor end in the static hydraulic drive (HST) system of the World harvester. It is used to control the distribution of high-pressure oil between the motor cylinder and the plunger group, and is a key component that determines the walking power and smoothness of the harvester
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Product Advantage


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Oil distribution


Accurately switch the high and low pressure oil circuits of the motor to ensure stable output torque of the plunger motor.



Reduce internal leakage


High precision distribution surfaces effectively reduce leakage and improve walking efficiency.



Ensure stable power output


Keep the harvester stable and powerful in working conditions such as mud, paddy fields, and slopes.



Extend HST lifespan


Protect key components such as cylinder body and plunger, reduce wear and oil temperature rise



微信图片_20251126090123_4327_23

Technical Parameters

ITEMSDESCRIPTION
NameAssigment Plate(Motor)
CodeWHST40-07
Weight0.15 1 piece/set
Size(mm)Φ90 φ:28 H:5


Product Uses


Applications


Repair of the walking motor of the Wode wheel/track harvester


Handling of power attenuation and thermal attenuation issues in HST system


Repair and replacement of motor side leakage, insufficient torque, and weak climbing ability


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Product Operate Guide

Typical issues suitable for inspection/replacement


1.Slow walking speed and decreased power


2.Significant weakness after heating up the car


3.Abnormal noise in HST system


4.The return oil volume at the motor end has significantly increased


5.Upon disassembly and inspection, it was found that there were burn marks, pull marks, and pressure marks on the distribution plate surface


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