Dear All,
I have one old unit caterpillar, right now, we facing a big problem with steering and brake.
Steering to the left, is working normal and easy, but steering to the right, its very hard. And also there is no brake.
we tried to adjust the brake, but still nothing change.
Can any one help me please,
if any one can give me workshop manual for this unit, or hydraulic circuit diagram, i really appreciate.

Thank you