more often then not - when I "park" (without using parking break) the drive system creeps forward or backwards, depending on the direction of travel I was last in.
stopping it from creeping is a very fine pedal adjustment that often doesnt work.
Any suggestions?
Ok, it's been a few months since you asked this, but I have found the solution on my own B7100 HST-D. First, make sure the pedal shaft is adequately greased via the zerk on the shaft. If that is not sufficient, then there is an adjustment that is not described in either the WSM or Owner's manual. (and no offense to Wolfman, but for the HST model, you need the HST manual, not the 3 part manual.
Find the correct one here).
Remove the cover over the HST filter and you will find a threaded rod with two lock nuts on the starboard side of the filter. That rod is connected to the top of the pedal centering spring. You will need 2 17 mm wrenches and a 10mm wrench.
Lift the rear wheels off the ground with the tractor in 2wd. Loosen the locknut. Hold the rod with the 10mm wrench while tightening down the lower nut to raise the rod and hence apply more tension to the spring, until there is just enough tension to ensure the pedal returns to the centre position reliably every time. Re-tighten the lock nut.
Now, if the tractor develops a tendency to creep in one direction no matter which way you were travelling, there is another adjustment. That one IS documented in the WSM (again, you need the HST version). You can find that on page 211 (of the PDF, it's page S 3-4 on paper) so I won't bother repeating it here. You will need a 12mm socket, a 10" long extension and a long screwdriver to make the adjustment around all the levers and foot board.
