11707966 hydraulic plunger pump For Volvo A35D, A40D, T450D articulated dump truck

product parameters

Part No：11707966 / VOE11707966
Type：Variable Displacement Axial Piston Pump
Applicable Equipment：Volvo A35D, A40D, T450D Articulated Dump Truck
Control Mode：Swash plate variable control
Material：High strength cast iron housing, alloy steel plunger & cylinder block, FKM sealing assembly
Surface Treatment：Precision grinding, nitriding hardening, anti-rust coating
Drive Method：Engine driven
Nominal Working Pressure：28 MPa
Feature：OEM interchangeable, compact structure, high volumetric efficiency, sensitive variable response, low noise
Working Temperature：-25℃ ~ +110℃
Rated Rotation Speed：2200 rpm, Max allowable speed：2600 rpm
Shaft Specification：Splined shaft
Net Weight：32 kg
Package：Independent anti-rust packaging + export wooden case

・1:1 OEM interchange, perfectly matches Volvo A35D/A40D/T450D steering & cooling hydraulic system
11707966 piston pump is manufactured strictly according to original drawing standards. All mounting dimensions, oil port layout and spline shaft parameters are fully consistent with VOE11707966 original pump. Direct replacement without pipeline or bracket modification.
・Tailored for D generation Volvo articulated dumpers
Specially designed for D series Volvo articulated trucks, stable matching for older generation mining equipment, ideal spare part for old fleet renovation and maintenance.
・Nitrided alloy steel friction pairs, stable performance under long-term mine heavy load
Core plunger, cylinder block and valve plate adopt nitriding hardening treatment, improving surface hardness and abrasion resistance. It maintains high volumetric efficiency under continuous heavy-load transportation and reduces internal leakage.
・High-precision swash plate variable regulator, fast response to load fluctuation
Built-in variable control assembly quickly adjusts displacement according to steering resistance and fan load. It balances power output for steering and cooling circuits, prevents power waste and protects hydraulic components from overload damage.

FAQ 

Q1: Which Volvo articulated dump truck models does VOE11707966 fit?
A1: It is compatible with Volvo A35D, A40D and T450D articulated dump trucks. Please confirm OEM part number VOE11707966 before ordering.

Q2: What is the working principle of this auxiliary piston pump?
A2: Driven by the engine, it converts mechanical power into hydraulic power, supplying pressurized oil for power steering and cooling fan hydraulic circuit.

Q3: What are the symptoms when VOE11707966 is worn out?
A3: Heavy steering, insufficient cooling fan speed, engine overheating, unstable hydraulic pressure and abnormal low humming noise.

Q4: What should we check before installing this pump on D-series old machines?
A4: Inspect the whole hydraulic circuit for contamination, check pipe blockage, replace hydraulic oil and filter elements, bleed air after installation.

Q5: Why should old D-series vehicles pay more attention to hydraulic oil cleanliness?
A5: The hydraulic pipelines of old equipment may contain residual metal debris. Dirty oil will scratch the pump internal friction pairs and shorten pump service life greatly.

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