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Product Advantage
As the pump casing/pump body shell
It is the shell/main structure of the Charge Pump Assy - all internal components of the pump (gears, shafts, seals, return oil/pressure channels, etc.) are installed inside this casing. WHST40-13A-01 provides mechanical installation interfaces and structural support for these internal components.
Enduring hydraulic/mechanical forces
During the operation of the HST system, the pump body needs to withstand forces from hydraulic pressure, gear meshing, speed changes, and other sources. The shell must ensure structural strength, rigidity, and sealing to avoid deformation, leakage, or damage. The metal material and appropriate thickness/size of WHST40-13A-01 are designed to meet these mechanical and hydraulic/sealing requirements.
Positioning and sealing coordination
By coordinating the housing with other components (gears, O-rings/seals, pump chambers, output/input ports, etc.), the internal oil circuit of the pump is ensured to be sealed, preventing oil leakage, and ensuring the efficiency and service life of the pump. In the parts list, it forms a complete "Charge Pump Assy" together with the O-ring and internal and external gears.
Overall structural support/force dissipation
As part of the pump, it connects the HST drive system with the overall body - providing structural support, while transmitting the force generated by the pump (hydraulic pressure+rotational force+frictional force) to the machine frame/mounting seat through the housing
Technical Parameters
| ITEMS | DESCRIPTION |
| Name | Charge Pump Housing |
| Code | WHST40-13A-01 |
| Weight | 1.5 1 piece/set |
| Size(mm) | 123*88*50 φ:57 |
Product Uses
Damage to the pump housing, poor sealing, or improper installation may result in oil leakage, unstable pressure, decreased pump efficiency, abnormal power transmission, and in severe cases, even system damage or machine failure
It is an important guarantee for ensuring the stability of the HST system and the normal operation of the harvester
Product Operate Guide
Inspection and replacement timing
Regularly check the pump body and sealing condition - During use, the pump body should be checked regularly for cracks, deformation, wear, oil stains, or leaks. If any abnormalities are found, the sealing ring/O-ring should be dismantled and replaced in a timely manner, or the pump housing should be replaced.
Product Video
