For a such a small tractor you won't need the "BIG" sizes, metric yes, big no.
There is a need for 15/16 open ended wrenches on hydraulic lines and fittings, a minor annoyance since a lot of "sets" jump from 7/8 to 1".
Get two, one to turn with, one to hold the other side with.
Don't expect adjustable "crescent" wrenches to get in there - and in any case remember that although the outer diameter is 15/16 it is HOLLOW and a relatively soft metal, so the good fit of solid wrenches is worth doing it right.
There is a need for 15/16 open ended wrenches on hydraulic lines and fittings, a minor annoyance since a lot of "sets" jump from 7/8 to 1".
Get two, one to turn with, one to hold the other side with.
Don't expect adjustable "crescent" wrenches to get in there - and in any case remember that although the outer diameter is 15/16 it is HOLLOW and a relatively soft metal, so the good fit of solid wrenches is worth doing it right.