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Had the same problem with my UTU and just yesterday I adjusted them per the manual. The brakes now feather nicely with no grabbing whatsoever, yet they will skid the tires on a hard surface with only moderate pedal pressure. Here's the adjustment steps: ---- 1 - If your tractor has fenders remove them. Block the opposite tire to prevent rolling, put the gear shift in neutral then jack the wheel off the ground on the side you are gonna work on. (This makes the following work MUCH easier....) 2 - Remove the brake drum dust cover if present, then rotate the tire until one of the access slots in the brake drum face is over the brake shoe adjustment star wheel. (The star wheel is at about the 7 o'clock position when facing the brake drum.) 3 - Loosen the brake shoe anchor nut at the top of the brake backing plate about 2 - 3 full turns (I recall the anchor nut takes a 15/16" wrench). Tap the loosened nut with a hammer to make sure the anchor pin is free in the backing plate. 4 - Check both the master brake pedal and the pedal for the side you are working on are fully up (use wood blocks or bungees if necessary to hold them up). Now use screwdriver to tighten the star wheel adjuster inside the brake until the brake sets and you can no longer turn the tire by hand. (Note: The outer edge of the star wheel teeth moves UPWARD to tighten...) 5 - Tighten the anchor nut at the top of the backing plate. (This centers the anchor pin/shoe assemblies relative to the drum) 6 - Next back off the star wheel adjuster exactly 12 - 14 clicks. The tire should now turn freely by hand. 7 - Now loosen the eccentric adjuster locknut on the back side of the brake backing plate (9/16" wrench). Then turn the eccentric forward until it stops, then back it off 1/8 of a turn and retighten the locknut while holding the eccentric adjusment steady. (This keeps the brake lower shoe from dragging when the brakes are release.) Tip: Needle nose vice-grips work well for adjusting/holding the eccentric. 8 - Finally adjust the pedal turnbuckle if required so the brake pedal has about 1" of free travel before the brake begins to engage. 9 - Repeat all of the above for the opposite side brake. ---- When complete both brakes should now be properly adjusted. Note: The above presumes the brake drum and shoes are in good condition. If the shoes facings are worn, broken away or oil soaked, or if the ID of the drum is rusty, take care of these first before attempting adjustment!
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