8D2.966.017-2

8D2.966.017-2 hydraulic filter for aircraft systems

The 8D2.966.017-2 is a hydraulic filter used in aircraft and specialized equipment hydraulic systems. It is installed in the hydraulic line where the working fluid has to be cleaned before it reaches pumps, valves, actuators, fittings, and other hydraulic units. The filter does not regulate pressure and does not control the circuit. Its work is simpler: it removes mechanical particles from the fluid and helps keep the line clean enough for normal operation. In maintenance practice, this part is normally checked together with the filter element, housing condition, connection thread, and pressure drop across the filter.

8D2.966.017-2 filtration of hydraulic fluid

The filter works with aviation hydraulic fluids such as AMG-10, 7-50S-3, and approved equivalents. During operation, the fluid passes through a regenerable filter element that traps mechanical contamination within the specified filtration range. This is important in hydraulic systems with narrow passages and loaded sealing surfaces. Small particles can damage valve seats, affect actuator response, or increase wear inside moving hydraulic units. The clean filter has limited resistance, but this resistance rises as contamination builds up. That is why the filter is not judged only by its body condition. The state of the element also matters.

Hydraulic circuit work with 8D2.966.017-2 installed

In the hydraulic circuit, 8D2.966.017-2 usually works near pressure lines and serviceable hydraulic components. The filter is part of a larger layout that may include pumps, pressure manifolds, shut-off valves, bypass paths, actuators, and service fittings. If the element becomes clogged, the pressure differential across the filter increases. The bypass valve setting is therefore an important parameter, because it protects the circuit when the element can no longer pass the required flow normally. A pressure problem in the system should not be blamed on the filter automatically. Leaks, pump output, valve condition, fluid contamination, and incorrect maintenance can give similar symptoms.

Aircraft and equipment use of hydraulic filter 8D2.966.017-2

The 8D2.966.017-2 filter is used in aviation and specialized equipment hydraulic systems operating under high pressure. Open technical references list this filter among 8D2 series hydraulic filters used with AMG-10 and 7-50S-3 fluids. Actual application still has to be confirmed by the equipment manual or aircraft parts catalog, because hydraulic layouts may differ by aircraft type, modification, and repair history. A visually similar filter may have a different flow rating, connection thread, element type, or bypass setting. For aircraft supply, the installed marking and system position are more reliable than a general equipment description.

Identification and ordering checks for 8D2.966.017-2

Before ordering, the marking on the installed filter should be checked against the aircraft or equipment documentation. The same filter may also appear in documents as 8D2966017-2, without dots. For repair and maintenance requests, it is useful to confirm whether the requirement is for the complete filter assembly or for the regenerable filter element 8D2.966.022-3. The request should include the part number, equipment type, installation location, and a photo of the marking if available. The product is also known under alternative designation 8D2966017-2.

Product Type: Hydraulic filter
Function: Filtration of hydraulic fluid from mechanical contaminants
Application / Where Used: Aircraft and specialized equipment hydraulic systems
System / Installation Area: Hydraulic system
Working Medium: AMG-10, 7-50S-3 and approved equivalents
Filter Element Designation: 8D2.966.022-3
Filtration Fineness (Nominal / Absolute): 16 / 25 µm
Nominal Operating Pressure: 21 MPa
Nominal Flow Rate: 40 L/min
Hydraulic Resistance of Clean Filter: Not more than 0.18 MPa
Bypass Valve Opening Pressure Differential: 0.7 MPa
Operating Temperature Range: −60 to +120 °C
Dimensions: B 95 mm, L 205 mm, D 68 mm
Connection Thread: M20×1.5
Weight: Not more than 2.0 kg
Scope of Supply: Filter assembly with regenerable filter element
Technical Documentation: Hydraulic Filter 8D2.966.017-2 Technical Documentation

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