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10-19

Push-type master cylinders are the most common type of master cylinder. The aircraft’s brake pedal linkage is set up to push the rod of the master cylinder to engage the brake discs. Cleveland’s push-type master cylinders have been designed with hardened steel rods, aluminum housings, and pistons that have low seal friction for a long, reliable service life.

Full Product Description

Cleveland’s Push-type master cylinders are located in the cockpit on each of the pilot’s rudder pedals. They are used to turn a force into a pressure to actuate the brakes on an aircraft. The push-type master cylinders require a separate remotely mounted reservoir or connection to a low-pressure aircraft return system.

Push-type master cylinders are the most common type of master cylinder. The aircraft’s brake pedal linkage is set up to push the rod of the master cylinder to engage the brake discs. Once the brake discs are engaged, the master cylinder transforms the pilot’s input force into a hydraulic pressure at the brakes. The brake pistons then reverse the process and transform the hydraulic pressure into a force against the brake discs. This force is used to stop the discs from rotating and ultimately stop the aircraft.

Selection of a properly sized master cylinder is important. There are several features to consider when choosing a master cylinder. Volume Output is the most important and is governed by the volume requirement of the brakes and the compliance of the rest of the system. Choosing a master cylinder with too low a volume output will not allow the brakes to be filled properly and not pressurize enough to stop the aircraft.

The master cylinder’s Bore Size directly affects the amount of pedal effort. A large bore master cylinder will make the pedal effort higher than one with a smaller bore.

APPLICATIONS

General aviation, light jets, turboprop passenger, and cargo aircraft

Technical Specifications

Actuation Type: Push
Bore Diameter: Ø 0.563 IN
Certification Type: FAA-PMA Approved / Installed under aircraft Type Certificate
Fluid Type: MIL-PRF-5606
Rated Pressure: 1000 PSIG
Stroke: 1.640 IN
Platform*: Piper Aircraft (PA-39 Twin Comanche, PA-24-260 Comanche , PA-24-260 Comanche , PA-24-260 Comanche , PA-30 Twin Comanche, PA-30 Twin Comanche, PA-30 Twin Comanche)* For reference only. To validate applicability, see “Find by Aircraft“.