Toro Z580 DFI Z Master Service Manual page 267

MOWER DECKS
60. Insert the pinion shaft assembly into the gearbox
assembly seating the pinion gear into the cross shaft
gear (Fig. 824).
61. Install 4 new bolts securing the pinion assembly to
the gearbox housing. Torque the bolts to 280 – 325
in-lbs. (31.6 – 36.7 Nm) (Fig. 825).
Note: The bolts are to be tightened in a crisscross
pattern.
7
7-78
Fig 824 IMG-8570a
Fig 825 IMG-8580a
62. Check the pinion shaft end play measurement,
it should be between .004" and .012" (.101 and
.305mm). Adjust the pinion housing shims to adjust
backlash (Fig. 826).
Note: Pinion housing shims and open end cap
shims should not vary more than .005"
(.127mm). If they vary more than that, adjust
the cross shaft shimming until a better
balance is achieved.
Fig 826
Z580/Z589 DFI Z Master Service Manual
IMG-8572a