What hydraulic oil should I put in my 803?

[LKSF]

Does the fact that it's old and worn mean a thicker viscosity would be better?
The manual is no help whatsoever, it only tells you what special JCB juice to use below -10 and above 40c. Sorry for huge wrong way round pics!

 

[6feetdown]

Does the fact that it's old and worn mean a thicker viscosity would be better?
The manual is no help whatsoever, it only tells you what special JCB juice to use below -10 and above 40c. Sorry for huge wrong way round pics!
View attachment 67022

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I'd say use what it says but I'm no authority on it

 

[LKSF]

I'd say use what it says but I'm no authority on it

It doesn't say, that's part of the problem!

 

[6feetdown]

It doesn't say, that's part of the problem!

Iso 46 at a guess

 

[V8Druid]

yeh SAE 46

 

[heritage machining]

I agree iso 46 not much stuff takes 32 nowadays and 68 is like treacle

 

[topkit]

46 grade on older machines 70' & 80's 90's machines newer ones 32 grade New Holland manual states using 10w in everything

 

[V8Druid]

46 grade on older machines 70' & 80's 90's machines newer ones 32 grade New Holland manual states using 10w in everything

TEN!! ... WOW! ... M/cycle fork oil

 

[Bri963]

46. The special oil will be a synthetic for extended temp. range. Not needed for your application. Important thing is keep to the service interval.

Gra, 10w is an SAE value, equivalent to ISO 32. SAE 10w goes into every Cat hystat system and most hydraulic systems, except countries with very high or low ambients.

 

[Storrsy]

How often is everyone changing their hydraulic oils in mini ex's. I do my Taks at 2000hrs as per manual but newer 1.8t tak says 4000hrs change. Think I'll still do it at 2000- oils cheap right!?

 

[hiluxman]

46. The special oil will be a synthetic for extended temp. range. Not needed for your application. Important thing is keep to the service interval.

Gra, 10w is an SAE value, equivalent to ISO 32. SAE 10w goes into every Cat hystat system and most hydraulic systems, except countries with very high or low ambients.

I've used cat advanced 10 in most things I own. But that's probably because I'd a few 5 gallon tubs of it.

 

[doobin]

How often is everyone changing their hydraulic oils in mini ex's. I do my Taks at 2000hrs as per manual but newer 1.8t tak says 4000hrs change. Think I'll still do it at 2000- oils cheap right!?

For what a 1.8t takes I’d do it at 500 hours.

Multione is 500 hour intervals. E27 is 1000hours but with the amount of attachments I run I don’t think 500 hours is excessive.

 

[LKSF]

Often when i'm pulling on the levers and it's got some resistance on the bucket nothing happens, it's like it's just not strong enough. I'm assuming this is due to wear and that a thicker oil may help temporarily, but don't know.
When engines are old and worn you put higher viscosity oils in them to put them on a few years, maybe this is the same.
I think it's got Millmax 46 in, but because of a hole in hose issue needs a big top up.

 

[Bri963]

Often when i'm pulling on the levers and it's got some resistance on the bucket nothing happens, it's like it's just not strong enough. I'm assuming this is due to wear and that a thicker oil may help temporarily, but don't know.
When engines are old and worn you put higher viscosity oils in them to put them on a few years, maybe this is the same.
I think it's got Millmax 46 in, but because of a hole in hose issue needs a big top up.

More likely your relief needs resetting. If it was worn that bad putting axle oil in wouldn’t help.

 

[Storrsy]

For what a 1.8t takes I’d do it at 500 hours.

Multione is 500 hour intervals. E27 is 1000hours but with the amount of attachments I run I don’t think 500 hours is excessive.

I know but it's a hateful job on the 3 ton Taks- reaching up underneath into the bowels and suddenly 75 liters of oil coming at you. I tried sucking it out once but seemed to have some kind of baffle arrangement in the tank so was still masses of it left when I released the bottom plug- always get covered in the stuff.

 

[Smiffy]

I know but it's a hateful job on the 3 ton Taks- reaching up underneath into the bowels and suddenly 75 liters of oil coming at you. I tried sucking it out once but seemed to have some kind of baffle arrangement in the tank so was still masses of it left when I released the bottom plug- always get covered in the stuff.

Can you get a pipe made up with a tap on the end??

 

[Storrsy]

Can you get a pipe made up with a tap on the end??

I don't think so. It's a case of reach up and feel around for the bung- use extension socket to crack it off and then obviously it all comes at once, then to get to the suction filter means walking the big suction hose off the mounting plate that holds the filter in the bottom of the tank- that's when all the rest of the oil from the system comes out too. I think I found the easiest way of dealing with it though- pay CBL to do it instead!

 

[Monkeybusiness]

I don't think so. It's a case of reach up and feel around for the bung- use extension socket to crack it off and then obviously it all comes at once, then to get to the suction filter means walking the big suction hose off the mounting plate that holds the filter in the bottom of the tank- that's when all the rest of the oil from the system comes out too. I think I found the easiest way of dealing with it though- pay CBL to do it instead!

I’ve seen people using cheap paddling pools for messy oil changes…

 

[Bri963]

I know but it's a hateful job on the 3 ton Taks- reaching up underneath into the bowels and suddenly 75 liters of oil coming at you. I tried sucking it out once but seemed to have some kind of baffle arrangement in the tank so was still masses of it left when I released the bottom plug- always get covered in the stuff.

Vacuum the tank. You can get vacuum kits to go on an airline, I use a Cat one and it’s pretty good at at the minimum slowing down how fast it comes out.