3.
From the roller tube end with only the inner seal
NOTE: After roller is installed to cutting deck, lubricate
roller grease fittings, rotate roller to properly distribute
grease in bearings and clean excess grease from roller
ends. A properly assembled roller should rotate with
less than 5 in--lbs (0.68 N--m) resistance.
installed, carefully install the roller shaft into the roller
tube. Make sure that seals are not damaged as shaft is
installed.
4.
Install new bearing and outer seals into second end
of roller tube:
1
3
4
2
5
A. Position a second new bearing to roller shaft and
tube.Position washer(seeSpecialTools)onbearing
to allow pressing on both inner and outer bearing
races simultaneously.
B. Use washer and bearing/outer seal tool (see
Special Tools) with a soft face hammer to fully seat
bearing (Fig. 16). After bearing installation, make
sure that shaft freely rotates and that no binding is
detected. If necessary, lightly tap bearing and/or
shaft ends to align shaft and bearings. Remove
washer from roller.
Figure 15
4.
5.
1.
2.
3.
Roller tube
Inner seal
Bearing
Outer seal
Bearing/outer seal tool
C. Apply a small amount of grease around the lip of
both outer seals.
1
2
3
4
5
D. Carefully install first outer seal into roller tube
making sure that seal lip (and garter spring) faces
end of tube. Use bearing/outer seal tool (see Special
Tools) and soft face hammer to lightly seat seal (Fig.
6
17).
Make sure that shaft and bearings still freely ro-
tate after seal installation.
E. Using the same process, install second outer
sealmakingsuretonotcrushtheinstalledouterseal.
Again, make sure that shaft and bearings still freely
rotate.
Figure 16
IMPORTANT: Make sure that all grease is removed
from shaft threads to prevent bearing lock nut loos-
ening.
1.
2.
3.
Roller tube
Roller shaft
Inner seal
4.
5.
6.
Bearing
Washer
Bearing/outer seal tool
5.
shaft.
Thoroughly clean threads on both ends of roller
1
2
3
4
5
6
NOTE: If original bearing lock nut(s) are being used,
apply Loctite #242 (or equivalent) to threads of lock
nut(s).
6.
shaft. Make sure that outer seals are not damaged dur-
ing nut installation. Torque lock nuts from 50 to 60 ft--lb
Install bearing lock nut onto each end of the roller
(68
to 81 N--m).
Figure 17
4.
5.
6.
7.
If set screw was removed from either end of roller
1.
2.
3.
Roller tube
Roller shaft
Inner seal
Bearing
Outer seal
Bearing/outer seal tool
shaft, apply Loctite #242 (or equivalent) tothreads ofre-
moved set screw and install into roller shaft. Tighten set
screw until it bottoms in shaft and is recessed in shaft.
IMPORTANT: When roller assembly is installed to
cutting deck, make sure that grease groove in each
roller mount aligns with the grease hole in each end
of roller shaft.
Groundsmaster 4500--D/4700--D
Page 8 -- 17
Rev. D
Cutting Units (Rev. B)
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 4500 D, Toro Groundsmaster 4700 D |
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| Document Type | Service Manual |
| Language | English |
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