Toro Groundsmaster 455-D Service Manual page 193

Front Axle Removal
1. Drain oil from transaxle.
2. Jack up front of machine and support chassis frame
with jack stands.
3. Remove front wheels. Remove nuts (Fig. 18,
Item 19). Use a puller to pull each wheel hub (Item 13)
off of shafts. Remove belleville washers (Item 28).
4. Remove roll pin (Fig. 17, Item 42). Remove cap­
screws (Item 43, 44) securing shift rod support (Item 10)
to transaxle. Remove hex flange head screws (Item 12)
securing transaxle support bracket (Item 13) to
transaxle.
5. Clean all exterior surfaces of axle and transaxle.
6. Remove capscrews (Fig. 18, Item 38) and disconnect
hydraulic motor (Item 37) from transaxle. DO NOT
disconnect hoses from hydraulic motor.
7. Disconnect brake linkage rod eyes from brake link­
age arms. NOTE: Brake linkage is spring loaded.
8. Disconnect and put covers on hydraulic lines that run
under axle assembly or that go through bulkhead brack ­
ets connected to axle assembly. Mark hydraulic lines for
proper reassembly.
9. Support axle assembly, then remove U-bolts (Fig. 18,
Item 23) securing axle to frame.
10. Carefully lower and pull axle assembly out from
under machine.
Front Axle Disassembly
1. Remove skid plate (Fig. 18, Item 25).
NOTE: Before removing axle housings, scribe align ­
ment marks across transaxle housing, adapter plate
and axle housing for proper reassembly.
2. Remove remaining capscrews securing axle housing
(Item 11) to transaxle and carefully pull axle housing and
shaft (Item 27) away from transaxle.
3. Remove axle housing cover (Item 8).
4. Remove cotter pin and clevis pin to disconnect brake
clevis from brake actuator.
®
Groundsmaster 455-D
5. Remove brake disks (Item 4) and brake actuator
(Item 5).
6. Remove adapter plate (Item 2) and transaxle spacer
(Item 1).
7. To remove axle from housing, remove retaining ring
(Item 21) from outboard end of housing, then tap lightly
with a mallet from inside out. A seal ring (Item 20) and
a pressed on, sealed ball bearing (Item 22) will be on
the end of the axle.
8. Do steps 2 - 7 for axle housing on other side.
Front Axle Assembly
Reverse steps 1 - 8 under Front Axle Disassembly.
To install axle assemblies into transaxle case, grease
axle spline ends heavily. Push axle through seal. Use
caution to prevent damage to seal when axle splines
are going through seal.
Front Axle Installation
Reverse steps 1 - 10 under Front Axle Removal.
If a new transaxle is installed, determine correct shim to
use behind spiral bevel gear on hydraulic motor by
subtracting actual motor flange face to sleeve dimen­
sion from dimension stamped on transaxle or attached
to tag.
Dimensional Range
2.6000 - 2.6155
2.6156 - 2.6225
2.6226 - 2.6400
After Assembly
1. Fill transaxle with approximately 144 oz. (4.5 U.S. qt.)
of SAE 80-90W EP gear lube.
2. Check for hydraulic oil leaks.
3. Check adjustment of transaxle shift linkage.
4. Check brake "free play" adjustment.
Page 6 - 11
Pinion Shim
0.038 (82-5390)
0.045 (82-5380)
0.052 (82-5400)
Repairs