It should be noted that the steering system on these machines will never be really great without a complete redesign. Even after Yuchai acquired the dozer from Guilin in the mid-nineties, the only changes have been to switch from an inorganic fibrous friction media to a bonded sintered bronze type disc.(They did try segmented lining on the brake bands but that was a flop). Because of the linkage design, pedal pressure requirements will always be high. The modifications I made to the system makes adjustments very easy, and significantly reduces pedal pressure requirements. The only caveat is that it will require considerable mechanical acumen because there are no step-by-step instructions. So if you want to reap the rewards of a challenging little project, I'll go ahead and recreate the drawing.