13.Gearbox
seals can be removed as follows:
7. Install planetary assembly (with brake band
installed) into gearbox, engaging gears of differential
assembly. Note: On Flex 21, if gearbox is still attached
to engine, parking brake lever on engine side of gearbox
(with cable) should be installed onto brake shaft as plan-
etary assembly is installed into gearbox.
A. Using a 1/4” thick, 3” X 3” square piece of steel,
make a seal removal tool as shown in Fig. 27.
B. If seal is secured with retaining ring, remove re-
taining ring. Slide seal removal tool over shaft.
Shallow web casting
C. Using the tool as a template, locate, mark and drill
two 7/64” (.109”) diameter holes in outer face of seal.
5
11
10
4
D. Screw two No. 8 (.164” diameter) by 3/4” long
self–tapping screws into outer face of seal.
12
E. Install two 1/4–20 by 1” long cap screws into
tapped holes in seal removal tool and alternately
tighten cap screws to pull seal out of gearbox. Dis-
card removed seals.
9
1
7
2
Brake Band
Location
6
3
NOTE: Gearbox seals will be damaged when removed.
Do not re–use seals that have been removed.
Traction Band
Location
8
Figure 25
14.Carefully
bushings and bearings. Replace all worn or damaged
components.
inspect all internal gears, shafts, washers,
1.
Sun gear
Input gear
Carrier assembly
Ring gear
Traction drum
7.
8.
9.
10. Wave washer
11. Thrust washer
12. E–ring
Woodruff key
Planet gear (3 used)
Thrust washer
2.
3.
4.
5.
6.
Assembly (Fig. 21)
E–ring
1.
Replace all removed oil seals, bushings and bear-
ings in the gearbox cover and base. Note: The oil seal
for the reel drive clutch shaft is a red/orange color to dif-
ferentiate it from other similarly sized seals in the gear-
box. Oil seals should be installed flush or slightly
recessed in seal bore. If seal is secured with retaining
ring, install retaining ring. If clutch shaft caged needle
bearing in gearbox base is replaced (item 3), closed end
of bearing should be flush with outside of base after
installation.
6
10
1
3
9
2
8
7
6
7
5
4
10
2.
Thoroughly apply grease to seal lips in both the gear-
box base and cover.
Figure 26
3.
If clutch shaft was disassembled, use Figure 26 as
1.
2.
3.
4.
5.
Clutch shaft
6.
7.
8.
9.
Thrust bearing
Thrust washer
Plunger hub/bearing
Snap ring
Clutch gear/bearing
Cone clutch hub
Retaining ring
a guide to install components to clutch shaft. Install
clutch shaft assembly into gearbox base and rotate
clutch fork to plunger hub. Place thrust washer on cover
end of shaft.
Thrust washer (sm ID)
10. Square key (2 used)
SEAL REMOVAL TOOL
4.
two (2) retaining rings.
Attach link to fork shaft and bellcrank. Secure with
.188”
dia. (2)
5.
slide differential assembly into bushing and seal in base.
Lubricate long differential axle shaft and carefully
.75”
dia.
.625”
.625”
6.
25
bly. If input gear was removed, install with shallow web
casting toward sun gear.
If planetary assembly was disassembled, use Figure
as a guide to install components to planetary assem-
Tap 1/4–20
UNC (2)
1.05”
1.05”
Figure 27
Traction and Reel Drive System
Page 4 – 20
Greensmaster Flex 18/21
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Greensmaster 04018, Toro Greensmaster 04019, Toro Greensmaster 04022, Toro Greensmaster 04024, Toro Greensmaster 04025, Toro Greensmaster 04030, Toro Greensmaster 04031 |
| Download File |
|
| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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