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  #1  
Old 12-28-2017, 11:12 AM
JDA_BTR JDA_BTR is online now
 
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Location: Baton Rouge, LA
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Default Beringer Mineral Oil

I need some of the mineral oil to the milspec Beringer requires, Brayco Micronic 881 is what I found. A gallon can be had from Beringer USA for about 70 plus shipping. Grayco has it for 46 a gallon but 2 gallon minimum (70 min order).

So does anyone want me to ship them a gallon for what it costs me plus shipping? Does anyone have a gallon they want to send me?

Otherwise I'll probably just get the 2 gallons from Grayco and sit on the surplus.
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  #2  
Old 12-28-2017, 12:08 PM
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F1Boss F1Boss is offline
 
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Default Google is your friend!

I checked on the specs of MIL-PRF-87257B and Aeroshell 51 complies. I'll wager Synth ATF (Mobil 1 for example) will do fine - think of what you're gonna do when your out in the boonies and you need fluid - synth ATF is available anywhere.

Auto type brake fluids are right out! Do no use any of those, except the silicon types.
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  #3  
Old 12-28-2017, 01:20 PM
TS Flightlines TS Flightlines is offline
 
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Location: Ridgeland, SC
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Default Since the ATF discussion

came up a few weeks ago- I inquired to Beringer about the use of ATF in their systems. As of today, I have NOT gotten an answer. But when I do, I'll post it here.
Tom
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  #4  
Old 12-28-2017, 01:35 PM
JDA_BTR JDA_BTR is online now
 
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Good tip; seems the Aeroshell 51 is the right MILSPEC.

The Aeroshell 51 is 87257B and the Brayco is 87257A. I wonder what the "A" and "B" are. Looks like the B is just the latest revision:
http://everyspec.com/MIL-PRF/MIL-PRF...57B.006018.PDF

The shell fluids PDF: https://www.shell.com/business-custo...hydraulics.pdf
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Last edited by JDA_BTR : 12-28-2017 at 01:52 PM.
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  #5  
Old 12-28-2017, 01:55 PM
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Walt Walt is offline
 
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Default

I've used the standard MIL-PRF-83232 (Royco 782) in their systems with no issues. The fluid they call out is for use in ultra cold climates/high altitudes.


AeroShell Fluid 51 is recommended for use in aircraft, ordnance and missile systemsoperating from –54°C to +135°C. This fluid should be considered for use in auto pilots, shock absorbers, brakes, flight control systems, hydraulic servo-control systems and other systems using synthetic elastomer seals. This fluid is especially recommended for use in high altitude aircraft that normally operate with extended loiter times and high endurance levels such as UAVs and ELINT systems.

AeroShell Fluid 51 is compatible with AeroShell Fluids 4, 31, 41, 61 and 71 and can be used in systems designed to operate with MIL-PRF-5606, MIL-PRF-6083, MIL-PRF-83282 and MIL-PRF-46170 fluids.
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Last edited by Walt : 12-29-2017 at 08:05 AM.
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  #6  
Old 12-28-2017, 07:14 PM
JDA_BTR JDA_BTR is online now
 
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Itís likely ok but a Belinger rep specifially told me no substitutes were acceptable to them.
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  #7  
Old 12-28-2017, 07:46 PM
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Default Brake fluid

I was planning on using Royco 782 as well.
http://m.aircraftspruce.com/catalog/...?clickkey=4008
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  #8  
Old 12-29-2017, 06:03 AM
MED MED is offline
 
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Location: Aiken, SC
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Default

Quote:
Originally Posted by JDA_BTR View Post
Itís likely ok but a Belinger rep specifially told me no substitutes were acceptable to them.
I sent you a pm. I'll split with you.
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  #9  
Old 12-30-2017, 08:17 AM
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Walt Walt is offline
 
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From the latest Beringer MM:
http://www.beringer-aero.com/en/file...int-manual.pdf

CAUTION: Standard MIL-H-5606 Brake f luid is replaced by f ire resistant f luid:
MIL-PRF-87257 and MIL-PRF83282, make sure that only those brake f luids are used.
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EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
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RV7A built 2004, 1700+ hrs
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  #10  
Old 12-30-2017, 03:09 PM
N54SG N54SG is offline
 
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Default

I've been running Royco 782 in Beringer brakes for years, no problems. Plus it doesn't smell as bad as 5606!
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