Clyde 15O6016 Hydraulic Combo Pump

The Clyde 15O6016 Hydraulic Combo Pump is a direct replacement for the hydraulic pump assemblies used on the Clyde 15F2397 Wide-Body Towbar and the Clyde 15F3381 Aircraft Towbar. These commercial aircraft towbars rely on hydraulic pressure for proper height adjustment and alignment. Installing the correct replacement pump helps maintain safe and controlled aircraft towing operations.

The 15O6016 is supplied as a complete hydraulic combo pump assembly rather than a partial rebuild kit. It replaces multiple legacy components, including the cylinder, hand pump, hose assembly, fittings, and related hardware. This simplifies maintenance by allowing operators to replace the entire pump rather than rebuild individual components.

The 15O6016 pump system includes replaceable components, including a cylinder seal kit, a pumping station cartridge, a release valve kit, a handle kit, an air bleed kit, a piston rod, and various pins and retainers. These service parts allow maintenance teams to repair wear items without replacing the entire unit. Having individual replacement kits available supports long-term reliability of ground support equipment.

The standard fill procedure specifies using ATF fluid to fill the hydraulic combo pump until the fluid just covers the cylinder jacket. For extreme cold conditions, MIL-PRF-5606 hydraulic oil is acceptable. Always follow the manufacturer’s fill instructions to prevent leakage or improper pressurization.

To fill the pump, remove the brass vent plug and rubber grommet, then add fluid until it just covers the cylinder jacket. Overfilling should be avoided, as excess fluid may leak from the air bleed. After filling, reinstall the rubber grommet and vent plug, ensuring the air bleed remains open except during shipping.

The air bleed valve ensures proper air venting within the hydraulic system, which is critical for smooth pump operation. The air bleed should remain open (pulled up) during normal use to prevent pressure irregularities. Proper venting ensures consistent hydraulic performance and stable towbar height adjustment.

Yes, individual service kits such as the cylinder seal kit, release knob kit, retainer nut kit, and handle components are available. This modular design allows operators to replace high-wear parts without removing the entire hydraulic assembly. Routine servicing can extend the pump's operational life.

The hydraulic combo pump provides controlled lifting and lowering capability for commercial aircraft towbars. It enables technicians to precisely align the towbar with the aircraft nose gear attachment point. Reliable hydraulic function is essential for safe and efficient ground handling.

Failure to maintain proper fluid levels or replace worn seals can lead to pressure loss, fluid leaks, or inconsistent pump stroke. This may result in reduced lifting efficiency or unstable towbar positioning. Regular inspection and timely replacement of wear components help prevent downtime and protect aircraft equipment.

Commercial aircraft towbars depend on hydraulic systems for safe height adjustment and structural alignment. A properly functioning hydraulic combo pump ensures controlled force application and dependable ground support performance. For airlines and MRO facilities, maintaining the 15O6016 pump supports both operational efficiency and ramp safety.