Toro Groundsmaster 4300-D Service Manual page 375

Assembling the Blade Spindle (continued)
Groundsmaster ® 4300-D
16226SL Rev C
Note: The bottom seal must have the lip facing out (down)
seal installation allows grease to purge from the spindle during the lubrication
process.
If you are replacing the bearings, ensure to that you use the spacer
ring that is included with the new bearing set
6. Slide the spacer ring and inner bearing spacer into the spindle housing, then
install upper bearing cone and greased oil seal into top of the housing.
Note: The upper seal must have the lip facing out (up)
7. Examine the spindle shaft and shaft spacer to ensure that there are no burrs
or nicks that could damage the oil seals. Lubricate the shaft and spacer
with grease.
8. Install the spindle shaft spacer onto shaft. Place a thin sleeve or tape on the
spindle shaft splines to prevent damage of the seal during the installation
of the shaft.
9. Carefully slide the spindle shaft with the spacer up through the spindle
housing.
Note: The bottom oil seal and spindle spacer should fit together when the
spindle is fully installed.
10. Install the spindle nut onto the shaft and torque the nut to 117 to 216 N∙m
(130 to 160 ft-lb).
A pneumatic grease gun can produce high pressure inside the
spindle housing that can damage the spindle seals. Thus, do not use
a pneumatic grease gun for greasing of the spindle housings.
11. Attach a hand pump grease gun to one of the grease fittings on the housing
and fill the housing cavity with grease.
12. Rotate the spindle shaft to ensure that the shaft turns freely.
13. Install the blade spindle assembly to the cutting deck; refer to
Blade Spindle (page
IMPORTANT
IMPORTANT
7–8).
Page 7–13
(Figure 233). This
(Figure 231).
(Figure 233).
Installing the
Cutting Deck: Service and Repairs