Grade of oil used in Ford Power steering

[ford7600]

I know this may sound stupid but what grade of oil do people use in their power steering on for 1000 series tractors , I was told to use ATF but not sure if this right as the power steering ram leaks as Ford only gives their oil specs in the owners manual any info would be great.

[mathias1]

Hi,

if it's leaking you will have to do an overhaul and replace the o-rings.
On the fordson steering ram it was advised to use SAE w10.
I've put standard SAE w30 in it, and it works well.
Always use mineral oil for old equipment.