1978 C-141 with a Sundstrand Hydraulic Hose Question

[MainelyWheelhorse 2,063]

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 Tuesday at 11:33 PM by MainelyWheelhorse

[953 nut 61,962]

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 18,908]

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 14,585]

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 yesterday at 04:04 PM by Handy Don

[Handy Don 14,585]

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 8,812]

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.

 

 

 

 

[MainelyWheelhorse 2,063]

6 hours ago, JoeM said:

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.

 

 

 

 

@JoeM My C-141 was a parts machine for @ebinmaine's Ugly Bruce hydro deck lift project before I brought it back to life. It had the Hydro deck lift originally. I was thinking about running JIC fittings or something more standard and accessible on it, just in case it rots out or blows a hose etc... it'll probably be easier to find those. Was it expensive to switch it over? 

Edited 17 hours ago by MainelyWheelhorse

[953 nut 61,962]

7 hours ago, Handy Don said:

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

That is awesome!               I have that bookmarked for future reference.

[MainelyWheelhorse 2,063]

8 minutes ago, 953 nut said:

That is awesome!               I have that bookmarked for future reference.

Same here just in case.

[JoeM 8,812]

8 hours ago, MainelyWheelhorse said:

Was it expensive to switch it over?

I believe the main hose fittings are #6 and the cylinder o-ring are #5 have to check to make sure. The one 45 degree jic to jic i got on ebay SC did not have it.

I had some stuff from left over jobs. The original price would not matter because i did the job a few years ago and the prices were a lot lower then. 

 

Straight fittings o-ring to jic

 

jic to jic 90

 

hoses 

 

 

[Handy Don 14,585]

One enemy to keep in mind when using rubber hoses--friction. It’s insidious and fatal. I got from SC an inexpensive roll of woven hose protecting sleeve (need some?) to use on the exposed hoses. I also made sure to grommet any holes through metal plates that the hoses passed through.