Toro Greensmaster 3150 Service Manual page 142

Disassembly (Fig. 5)
1. Remove grease seal (9) and snap ring (18) from the
long end of hub (2).
2. Remove washer (7), two thrust washers (6), and
hub (2) from the hydraulic motor shaft. Remove remain-
ing two thrust washers (6), washer (7), snap ring (8), and
grease seal (9) from the shaft.
3. If drive studs (4) are bent or damaged, press studs
from the wheel hub (2).
4. Press clutch roller bearings (3) from the hub (2).
Assembly (Fig. 5)
1. If drive studs (4) were removed, press new studs
into the wheel hub (2).
2. Press roller clutch bearings (3) into the hub (2) as
follows (Fig. 6):
Note: Arrow on the side of the clutch roller bearings
(3) must point to the long side of the end of the hub (2).
A. Press two bearings into each end of the hub.
B. The outer edge of the outer bearings must be
flush with the recessed edge within the hub.
C. Center bearings must not interfere with grease
fitting hole.
3. Grease inner edge of the new grease seals (9) with
No. 2 multipurpose lithium base grease. Slide one seal
onto motor shaft past groove closest to the motor. Install
snap ring (8) into groove.
4. Slide flat washer (7) and two thrust washers (6) onto
the motor shaft. Slide hub (2) onto the shaft with the
short side first.
5. Slide remaining thrust washers (6) and flat washer
(7) onto the motor shaft. Install remaining snap ring (8)
into the shaft groove. Slide remaining new grease seal
(9) onto motor shaft.
IMPORTANT:The hub (2) should spin freely in the
forward direction, but lock on the hydraulic motor
shaft when it is spun in the reverse direction.
6. Press grease seals (9) into the hub (2) so they are
flush with the end of the hub.
Wheels and Brakes
OUTER BEARING EDGE
MUST BE FLUSH WITH EDGE
ARROWS ON BEARING
TOWARDS LONG END
Installation (Fig. 4)
1. Secure wheel (28) to the four drive studs of the hy-
draulic motor and hub assembly (14) with four lug nuts
(30). Torque nuts from 70 to 90 ft–lb (95 to 122 Nm).
2. Reinstall grease fitting (31) into hydraulic motor and
hub assembly (14) so it points away from the wheel.
3. Install flangette (11), bearing (10), and relube flan-
gette (9) onto the motor shaft.
4. Position hydraulic motor and hub assembly (14),
flangettes (9 and 11) with bearing (10), and wheel (28)
into the castor fork. Make sure hose fittings on the motor
face to the rear.
5. Secure hydraulic motor and hub assembly (14)
loosely to the left inside of the castor fork with both sock-
et head screws (16) lock nuts (13).
6. Secure flangettes (9 and 11), and bearing (10)
loosely to the right inside of the castor fork with cap
screws (12), bearing tab (7), lock nuts (8 and 29), and
flat washer (18).
A. Position flangette grease fitting facing down-
ward.
B. Torque socket head screws (16) to 85 ft–lb
(115 Nm).
C. Torque cap screws (12) to 30 ft–lb (41 Nm).
7. Apply loctite to both set screws (27). Torque set
screws from 80 to 100 in–lb (9 to 11 Nm).
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Figure 6
Greensmaster 3150