LUN 6101.01-8

Role in the L-39 hydraulic system

The hydraulic system of the Aero L-39 Albatros uses pressurized fluid to operate aircraft mechanisms that require controlled force. The LUN 6101.01-8 pump serves as a pressure source for this system. Hydraulic power is used by functions such as landing-gear operation, flap movement, speed-brake actuation and wheel braking according to the aircraft modification and system configuration. The pump therefore belongs to a safety-relevant circuit and must be selected, installed and tested in accordance with the applicable aircraft maintenance documentation.

Public Czech aircraft documentation identifies LUN 6101 as an L-39 hydraulic-system aggregate. Technometra also lists both LUN 6101-8 and LUN 6101.01-8 within its L-39 production programme. These references distinguish the pump from the LUN 6102.01-8, which is associated with a different aircraft installation. Similar appearance or a related designation does not establish interchangeability.

Mechanical drive and hydraulic connections

The pump has a compact cylindrical housing, a splined mechanical drive and dedicated hydraulic connection ports. Its drive interface transfers rotation from the aircraft installation to the internal pumping mechanism. The hydraulic ports connect the unit to the inlet and pressure lines, while sealed fittings and safety wire help maintain configuration integrity. Exact orientation, drive engagement, port identification and mounting requirements must be taken from the L-39 illustrated parts catalogue and maintenance instructions.

Correct fluid cleanliness is essential for any aviation hydraulic pump. Contamination, air entering the inlet line, unsuitable preservation or damaged sealing surfaces can affect pressure generation and accelerate internal wear. During maintenance, the installation should be checked as a complete circuit rather than assessing the pump only by external appearance.

Identification, inspection and selection

Before procurement, compare the full part number, nameplate, mounting flange, shaft spline, housing configuration and port arrangement with the removed unit or approved technical documentation. The suffix “.01-8” forms part of the designation and should not be omitted when the requirement specifically calls for LUN 6101.01-8. The related LUN 6101-8 version should be treated as a separate configuration unless interchangeability is confirmed by approved aircraft records.

Pre-installation inspection should include the housing, mounting face, drive shaft, splines, threaded ports, protective caps, sealing areas and preservation condition. For an airworthy installation, the buyer should also confirm the available passport or release documentation and any required bench-test evidence. Operating pressure, delivery, leakage and drive behaviour must be verified using approved test procedures rather than inferred from a visual check.

Partner-stock supply through Aviamisto

LUN 6101.01-8 is listed in Aviamisto partner stock. Partner allocation can change, so the available quantity, serial numbers, year of manufacture, individual documentation and final delivery terms are reconfirmed before order acceptance. The standard product attributes for this listing are New condition and a six-month commercial warranty, subject to confirmation for the selected unit.

To request a quotation, provide the exact part number, required quantity, delivery destination and documentation requirements. Related aviation pumps and regulating equipment can be viewed in the Pumps & Regulators category. Aviamisto can also check the currently available photographs and product passport data with the partner before a commercial offer is issued.