Gearbox Assembly - Toro Z580 DFI Z Master Service Manual

46. Install the lock nut onto the pinion shaft (Fig. 812).
Note: Secure the assembly in a vise and tighten the
lock nut enough to draw the gear and washer
until the bearings bind slightly. Back off the
nut approximately 1/8 of a turn.
Fig 812
47. Place a protective wrap around the shaft keyway to
protect the grease seal on installation.
48. Press the grease seal into the pinion housing (Fig.
813).
Fig 813
Z580/Z589 DFI Z Master Service Manual

Gearbox Assembly

49. Assemble the closed end cap onto the gearbox (Fig.
814).
Note: The end cap is oriented onto the gearbox
adjacent to the 2 drain plug holes.
IMG-8494a
50. Install 4 new bolts securing the closed end cap to
the gearbox housing. Torque the bolts to 280 – 325
in-lbs. (31.6 – 36.7 Nm) (Fig. 815).
Note: The bolts are to be tightened in a crisscross
pattern.
IMG-8550a
MOWER DECKS
Fig 814
Fig 815
IMG-8554a
7
PICT-6429a
7-75