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genski

Hydraulic Specification

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If Hydraulic fluid with specs of MIL-PRF-83232 can be mix with MIL-PRF-83232D use in aircraft? hoping for your response. thank you

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83282 and 83282d are same thing.  they can be mixed/interchanged.  The D is just the latest revision/formula of 83282 that is more strict with how many particles are allowed.  basically a cleaner version. 

-10 years C-130 Hydraulic troop experience

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If you have cans that say just MIL-PRF-83282, look for it to say "meets latest revision" or similar statement.  If the hydraulic fluid is still good (age wise) it will be revision D as revision D came around in the 1990's.  Hope that helps!

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13 hours ago, hehe said:

If you have cans that say just MIL-PRF-83282, look for it to say "meets latest revision" or similar statement.  If the hydraulic fluid is still good (age wise) it will be revision D as revision D came around in the 1990's.  Hope that helps!

sir thank you, what if different manufacturers or different brand like for example royco782 are 83282 and radcolube are 83282D. regardless of brand sir?

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Its all same.  If it meets the spec of 83282 then its same for all purposes of aircraft.  Same as buying motor oil for your car.  Its all 5w-30 and meets the specs for it just small differences.  Ideally you want to use same brand all the time but its not uncommon or harmful to mix brands.

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Mil Spec 7808 was the hyd fluid of choise 'til the early 80's... It would burn and the new stuff didn't..............

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6 hours ago, donwon said:

What was MIL-7808? I think we used that in the 60,s but not sure.

7808 was the engine oil spec for T56 engines.  Replaced by 23699.

Hyd. fluid was 5606.

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8 hours ago, larry myers said:

7808 was the engine oil spec for T56 engines.  Replaced by 23699.

Hyd. fluid was 5606.

You are correct Larry.

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19 hours ago, donwon said:

What was MIL-7808? I think we used that in the 60,s but not sure.

Engine oil.

Don R.

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15 hours ago, larry myers said:

7808 was the engine oil spec for T56 engines.  Replaced by 23699.

Hyd. fluid was 5606.

And before 7808 there was 1010.At Evreux there were still  some GTCs calling for 1010.  

 

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grade 1010 oil is used for preserving engine fuel system if engine is in storage over 45days. I have had the dubious honour of starting and running both an APU and an engine on 1010, having forgotten to switch over the fuel supply .....

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10 hours ago, pjvr99 said:

grade 1010 oil is used for preserving engine fuel system if engine is in storage over 45days. I have had the dubious honour of starting and running both an APU and an engine on 1010, having forgotten to switch over the fuel supply .....

Loved doing depreservation runs! We are talking about max smoke!

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