Overview
The installation of the US manufactured fittings created problems because of the mix of NPT & ISO threads. Access to both reservoirs would be through the inspection panels located in the cowl.
Installation
The first task was to install Aeroflow NPT to BSP elbow adapters to allow the use of the NPT brass fittings.
The factory supplied reseivors required mounting brackets these were fabricated from 2024-T3 sheet in a channel with a return tab at the base to carry the weight of the reservoir. with edges were covered using rubber channel.
 |
| Brackets |
Two [2] M3 rivet nuts were installed from the firewall side match drilled using the fabricated mounts. Once installed the mounts were fixed onto the stem side then fixed with M3 pan head screws with the gap created allowing cable ties [2] to be slid behind and around the reservoir for fixing.
 |
| Cylinder Assembly |
Both reservoirs were piped using black 3/16'' NSR nylon tube and 1/8'' NPT SAE female connectors selected to suit the location.
All threads were treated with Permatex PTFE thread sealant at installation.
To provide strain relief aluminium P clamps were fitted onto the firewall to provide support to the connection located on the rudder pedal.
Note: All screw threads were treated with thread lock at assembly
 |
| P Clamp |
The rudder pedals were fully cycled to check operation and to confirm that the pipe would stay retained during operation.
Comment
Worked as intended but aluminium fitting would have been ideal but none were available to save weight.
No comments:
Post a Comment