228-3636 plunger pumps For cat 834H wheel dozer

228-3636 plunger pumps For cat 834H wheel dozer Featured Image
  • 228-3636 plunger pumps For cat 834H wheel dozer

Short Description:

209-3258 variable axial plunger pump is aftermarket replacement for Caterpillar 980G II wheel loader with 3406E engine. It provides high-pressure hydraulic oil for bucket lift, tilt and steering circuits.

Product Detail

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description

228-3636 axial variable piston pump serves as core hydraulic power source for CAT834H wheel dozer, CAT836H landfill compactor and CAT988H wheel loader, powered by C18 engine. It converts mechanical power into adjustable high-pressure hydraulic energy to feed lifting, tilting, dozing, compaction and steering hydraulic systems. Built-in load sensing control valve dynamically modifies pump displacement based on real-time load. When handling heavy load such as pushing, compacting or loading materials, it provides large flow and high pressure; during travelling or light-load operation, it reduces displacement to save engine power and lower hydraulic heat accumulation. Core internal components including plungers, cylinder block, valve plate and slippers are forged from high-strength alloy steel, processed with precision grinding and nitriding hardening treatment. The friction pair maintains stable volumetric efficiency under repeated impact and cyclic heavy load typical for landfill and quarry operation. The thick cast iron pump housing undergoes stress relief annealing to eliminate casting residual stress, resisting heavy impact and continuous vibration in high-dust working sites.

product parameters

Part No：228-3636
Product Type：Variable Displacement Axial Piston Pump
Applicable Equipment：CAT 834H Wheel Dozer, CAT 836H Landfill Compactor, CAT 988H Wheel Loader, C18 Engine
Control Mode：Load Sensing Swash Plate Control
Rated Rotation Speed：2100 rpm
Max Allowable Rotation Speed：2400 rpm
Working Medium：ISO VG46 Anti-wear Hydraulic Oil
Working Temperature Range：-25℃ ~ +110℃
Main Material：High-density cast iron housing, high-strength alloy steel core components, FKM fluorine rubber seal
Surface Treatment：Precision grinding, nitriding hardening, stress relief annealing, anti-rust coating
Shaft Specification：Original standard splined shaft
Interchangeability：1:1 OEM original interchangeable, direct installation without modification
Product Condition：Brand new aftermarket part, 100% hydraulic bench tested
Packaging：Independent anti-rust packaging + export wooden case

advantage

- Nitrided alloy steel friction pair, stable performance under multi-scenario heavy load
Plunger, cylinder block and valve plate adopt deep nitrided alloy steel. It keeps stable volumetric efficiency under long continuous heavy workload, reduces internal leakage and extends service life under frequent impact load in landfill and mining sites.
- Load sensing control design, adaptive energy saving for variable working resistance
High-precision load sensing automatically adjusts pump output flow with working resistance. It delivers full pressure during heavy pushing, compacting and loading; reduces flow during travelling to lower power loss and fuel consumption.
- Premium FKM sealing assembly, reliable sealing under high pressure and wide temperature
High-quality FKM seals resist high temperature and hydraulic oil aging. It reduces external oil seepage and internal leakage, maintaining stable pressure for multi-circuit hydraulic systems of large CAT machines.
- Complete bench inspection before delivery, consistent performance and low failure rate
Each pump undergoes pressure retention, flow curve and load-sensing response testing. Strict QC meets OEM hydraulic system requirements for CAT 834H,836H,988H heavy equipment.

FAQ 

Q1: Which machines does 228-3636 plunger pump fit?
A1: This hydraulic plunger pump is designed for CAT834H wheel dozer, CAT836H landfill compactor and CAT988H wheel loader with C18 engine. It cannot be used on other CAT H-series models without confirmation. Confirm machine serial number before purchase.

Q2: What hydraulic functions does this pump supply?
A2: It provides pressurized hydraulic oil for bucket lifting, tilting, wheel dozing, landfill compaction and vehicle steering. It handles heavy material pushing, compacting and bulk loading in mining and landfill projects.

Q3: What symptoms occur when the plunger pump wears out?
A3: Common signs: slow movement of dozer blade, compaction plate or bucket, insufficient force under heavy load, stiff steering, abnormal noise from pump body, shaft seal oil leakage and pressure drop under peak load.

Q4: What inspection items should be checked before installing new pump?
A4: Inspect lift cylinders, tilt cylinders, control valves and filter assemblies. Flush hydraulic tank and pipelines thoroughly to remove metal debris. Replace contaminated hydraulic oil before assembly.

Q5: Why the machine still lacks power after pump replacement?
A5: Fault may not come from pump. Check relief valve pressure setting, stuck valve spool, clogged filter, damaged cylinder seals or trapped air inside hydraulic circuit. Air bleeding is required after installation.

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.

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