Differential Service - Toro Greensmaster
Flex 18 04018 Service Manual

Differential Service

1
10
6
4
6
RIGHT
FRONT
1. RH (short) axle
2. LH (long) axle
3. Retaining ring
4. Driven bevel gear
The differential assembly is an integral component of
the gearbox assembly. Service of the differential assem-
bly requires removal and disassembly of the gearbox.
Disassembly (Fig. 31)
1. Remove gearbox from mower (see Gearbox Remov-
al) and disassemble gearbox (see Gearbox Disassem-
bly) to remove differential assembly.
2. Support differential assembly and drive out roll pin
that locates gear shaft. Discard roll pin.
3. Remove gear shaft, two (2) thrust washers and two
(2) driven bevel gears.
4. Remove retaining ring from each axle. Discard re-
taining rings.
5. Pull each axle free from drive bevel gear, washer and
input gear/housing. Note that axle washers are different
from washers used on gear shaft.
Traction and Reel Drive System
9
11
11
Figure 31
5. Drive bevel gear
6. Washer
7. Washer
8. Roll pin
Inspection (Fig. 31)
1. Clean all differential components.
2. Inspect all differential bevel gears carefully looking
for chipped teeth, wear or other damage. Because gear
tooth damage is rarely isolated to one gear, replace bev-
el gears as a complete set.
3. Inspect axle shafts and gear shaft for scoring or
wear.
4. Inspect gear teeth, axle bearing areas and gear shaft
bores of the input gear/housing. Replace bushings if
damaged.
5. Replace all worn or damaged differential assembly
components.
Page 4 – 22
7
8
2
9. Input gear/housing
10. Gear shaft
11. Bushing
5
3
5
7
Greensmaster Flex 18/21