804009902 combination pump XCMG XS135 road roller spare parts

Short Description:

Combination pump is the power supply component of road roller hydraulic system. It integrates multiple pump units and supplies pressurized oil for travel, steering and auxiliary hydraulic circuits simultaneously, ensuring coordinated operation of traveling and steering functions.

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Product Detail

Product Tags

description

Part number: 804009902
Part name: combination pump
Unit name: hydraulic system
Fit for XCMG road roller XS135, suitable for rural road and small‑site subgrade compaction construction. Used to replace original combination pump with unstable pressure, oil leakage, abnormal noise and internal wear.

Worn internal gears, scratched flow‑distribution components and failed aged seals will result in insufficient output flow, pressure fluctuation, housing oil seepage and abnormal noise, causing weak travel and slow steering response, and directly reducing on‑site compaction efficiency.

Number	Parts Name	Quantity
1	PLUNGER PUMP	1
2	PLUNGER PUMP	1
3	RONDELLA	2
4	SCREW	2

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advantages

Port position, mounting flange dimension and shaft extension specification fully match original parts, supporting direct in‑situ installation without modifying pipeline brackets and cutting on‑site reworking hours.
Optimized internal flow channel reduces medium flow loss. It delivers stable pressure output under multi‑circuit simultaneous oil supply and adapts to frequent start‑stop impact of equipment.
Adopt anti‑aging composite sealing components resisting mud and dust erosion, lower leakage risk under alternating high‑low temperature condition and prolong overall service life.
Integrated pump‑body structure cuts quantity of external pipe joints and potential leakage points. Supplied as complete assembly for convenient disassembly and maintenance, meeting spare‑parts stocking demand of overseas projects in Southeast Asia and Africa.

maintenance & replacement

Shut down machine and fully release residual hydraulic pressure to avoid injury caused by high‑pressure oil ejection.
Block pipe ports during disassembly to prevent mud and impurities entering pump cavity and causing secondary wear damage.
Check coaxiality of driving connection position, do not force alignment installation to avoid premature pump‑shaft damage caused by extra radial load.
Replace all supporting seals with brand‑new ones, tighten bolts diagonally step‑by‑step evenly. Fill pump cavity with hydraulic oil before startup to avoid dry grinding.
Do not reuse pump after disassembly repair when housing is scratched and internal components are heavily worn, replace whole combination pump directly.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.