1978 C-141 with a Sundstrand Hydraulic Hose Question

[MainelyWheelhorse 2,059]

Hi All, 

I'm almost done with my C-141 and the last big piece is the deck hydraulics.@ebinmaine has a parted out 520 he got the used deck hydraulics off of that I am interested in. Is there any difference between the later 520, and my C-141 hose wise? (ex the fittings, sizes etc...). The plan is I would need to come off the C-141 pump to the 520 Hydraulics. I figured Id check before getting it all in and it is drastically different. Thanks!

Edited 22 hours ago by MainelyWheelhorse

[953 nut 61,937]

When I went from a Sundstrand to an Eaton on the GT-14 I had to buy some adapters, been a few years and I don't remember what they were. Surplus Center was very helpful with the sizing, good service.       https://www.surpluscenter.com/Hydraulics/Hydraulic-Adapters-Fittings/

[pfrederi 18,898]

Most Sunstrand hydro fittings are SAE ORB#5  No longer a common size.  The Eaton in the 520 used SAE ORB#6.

 

another possible source for adapters

https://www.discounthydraulichose.com/sae-straight-thread-orb.html

[Handy Don 14,576]

Also consider getting custom hoses. I found that the cost was not much more than the needed adaptors for my last project and it really helped fit things in tight places. 

Since both the Sunstrand and Eaton charge pumps are low pressure (~700 psi), their hoses can be single ply so less expensive, smaller, and more flexible. (Note that for non-flex runs, I used solid lines with 37º JIC flares.)

I initially tried a local hydraulics shop but they were geared toward commercial machines and had only two- and three-ply hoses at much higher cost. 

 

Places I shopped:

Surplus Center (link in previous post; very inexpensive “standard” hoses so some adaptors may be needed)

Discount Hydraulic Hose (link in previous post)

UniversalHoseAndFittings.com

HydraulicsDirect.com

 

Have to admit I geeked out on this terrifically helpful fittings chart. I’d like to buy it’s authors a cup of coffee!

https://www.hydraulichoses.com/thread-charts-hh

 

 

Edited 5 hours ago by Handy Don

[Handy Don 14,576]

Forgot to include this cross-reference link. It was here that I really started to understand the different manufacturer’s nomenclatures and part numbering.

https://www.hydraulichoses.com/cross-reference

[JoeM 8,794]

Question, is the pump on the 141 set up for a hydraulic lift?

 

If so you might want to consider JIC hoses. They make a ton of nice fittings that will neaten up the job. 

This is a C141 I re-hosed with material for Surplus Center.