Toro Workman 3000 Series Service Manual page 413

6. Verify bearing preload and pinion gear shaft (8) rota ­
tion as follows:
A. Install coupler flange (19), washer (17), and lock
nut (18) to the shaft of the pinion gear. Torque lock
nut from 75 to 90 ft–lb (10.3 to 12.4 kg–m).
B. The torque required to rotate the shaft of the pin ­
ion gear should be from 7 to 12 in–lb (8 to 14 kg–cm)
(Fig. 49).
C. If the torque required to rotate the shaft of the
pinion gear is more than specified in step B, remove
lock nut, washer, coupler flange, bearing cone (22),
and shim (21) from the shaft of the pinion gear. In­
crease shim thickness to decrease bearing pre­
load.
D. If the torque required to rotate the pinion gear
shaft is less than specified in step B, remove lock
nut, washer, coupler flange, bearing cone (22), and
shim (21) from the pinion gear shaft. Decrease shim
thickness to increase bearing preload.
E. Install shim, bearing cone, coupler flange, wash­
er, and lock nut to the pinion gear shaft. Torque lock
nut from 75 to 90 ft–lb (10.3 to 12.4 kg–m).
F. The torque required to rotate the pinion gear
shaft should be from 7 to 12 in–lb (8 to 14 kg–cm). If
the torque to rotate the pinion gear shaft does not
meet specification, repeat steps C or D and E as
necessary.
G. If the torque required to rotate the shaft of the
pinion gear shaft is as specified in step B or F, re­
move lock nut, washer, coupler flange, bearing cone
(22) from the shaft of the pinion gear. Press new oil
seal (20) into the carrier assembly (15) (Fig. 50).
H. Apply No. 2 Permatex sealant or equivalent to
the splines of the pinion gear. Make sure not to get
sealant on the oil seal (20) (Fig. 51).
I. Install flange coupler, washer, and lock nut back
onto the pinion gear. Torque lock nut from 75 to 90
ft–lb (10.3 to 12.4 kg–m).
7. Install thrust washers (7) to pinion gear shafts (6),
and thrust washers (4) to side bevel gears (5) (Fig. 52).
A. Place gears and washers into the differential
case (27).
B. Rotate both sets of gears simultaneously until
the pinion shaft (25) can be inserted through the dif­
ferential case, thrust washers, and pinion gear
shafts.
C. Install pinion shaft into the differential case and
pinion gear shafts. Secure shaft with roll pin (28).
Workman 4000 Series
SPLINES
Rev. B
Page 10 – 27
Figure 49
Figure 50
Figure 51
Figure 52
Front Wheel Drive Section (4WD)