Arrow Landing Gear Hydraulic Fluid Leak

Shempinator III

Hello everyone,

Went to the hanger the other day to fly and found a Red fluid stain on the deck about the size of a baseball. I traced it up to the area of the automatic landing gear system. More specifically the hydraulic pressure dump valve. All hydraulic lines are tight. I checked the pump fluid level and found it at the black mark in the photo.

I haven't gotten into the repair yet but wanted to see if anyone has had any experience with this problem. I am also trying to find the proper level of the hydraulic fluid in the reservoir. I'll update my findings as I go.

Thanks for any help.

Todd

Tom_Jax

Mine wasn't leaking externally like yours, but I had an internal bypass on my valve. I ordered the 3 O-Rings, removed the extension valve and resealed the thing and reinstalled. No issues since. I put a thread in the Arrow forum of the process I used to reseal it, if that helps you and your mech. Here is the thread, about half way down is my step by step: https://piperowner.org/talk/discussion/157059/hyd-power-pack#latest

Hope it helps,

Shempinator III

Thank you Tom. I'll check it out.

Shempinator III

Also Tom, do you know what the proper level for the reservoir is?

Thanks

Tom_Jax

Per the service manual, to the bottom of the filler hole.

Shempinator III

Excellent thanks Tom

planewrench

I take it your mechanic will be doing the repair?

Carl

Shempinator III

Hi Carl, Yes my mechanic will perform the repair.

planewrench

👍 Carl