Jd 6620 front axle

[Alecb]

Hi I have a 55 plate jd 6620, what oil do you recommend for the front axle, some people say hyguard and so.e say ls90 I just wanted to make sure before I changed it, the manual says hyguard
Thanks .

 

[Tractor Tim]

Our 6610 (can't imagine it would be diffrent) takes a j20 c which is similar as transmission oil think. just check in the book towards the back

 

[Tractortech]

Now Then..
If the manual says Hygard, then Hygard is the correct oil....
This comes up often. The axle will leave the axle factory with gear oil in as that's what the axle factory put in all the axles. It's usually changed at the first and subsequent services for Hygard..
The thinking from JD is that the customer only needs 2 oils to service the machine, Hygard and Plus 50... It won't matter a hoot which oil you put in, either Hygard or XEP 80W/90 (Morris oils product for instance). Just be sure any gear oil is of the 'limited slip differential' type

 

[Alecb]

Now Then..
If the manual says Hygard, then Hygard is the correct oil....
This comes up often. The axle will leave the axle factory with gear oil in as that's what the axle factory put in all the axles. It's usually changed at the first and subsequent services for Hygard..
The thinking from JD is that the customer only needs 2 oils to service the machine, Hygard and Plus 50... It won't matter a hoot which oil you put in, either Hygard or XEP 80W/90 (Morris oils product for instance). Just be sure any gear oil is of the 'limited slip differential' type

Thankyou so a LS 90 should be fine then by the sounds ?

 

[Tractortech]

If you feel the need for LS90 then yes. Thicker oil will use more engine power than the thinner Hygard when on the road but one would think it's negligible..

 

[Alecb]

If you feel the need for LS90 then yes. Thicker oil will use more engine power than the thinner Hygard when on the road but one would think it's negligible..

But it won't harm anything if I put it in ?

 

[marcot]

Just buy some hyguard and you know its right

 

[Alecb]

Just buy some hyguard and you know its right

Yeah I think your right I just thought the thicker oil would be better for it

 

[Qman]

I've got LS90 in my 2004 JD 6420 and it is fine.

 

[Alecb]

I've got LS90 in my 2004 JD 6420 and it is fine.

Thanks for that from what I can make out it doesn't really matter but zf axles prefer LS90 oil, but I've put hyguard in now just to be on the safe side
Thanks anyway