Toro Groundsmaster 5900 Series Service Manual page 482

Blade Spindle Assembly
Cutting Decks: Service and Repairs
(Figure 333) (continued)
If bearings are being replaced, make sure to use the spacer ring that
is included with new bearing set
7. Slide spacer ring and inner bearing spacer into spindle housing, then install
upper bearing cone and greased oil seal into top of housing. Note: The upper
seal must have the lip facing in (down)
flush to 1.5 mm (0.060 in) below the housing surface.
8. Inspect the spindle shaft and shaft spacer to make sure there are no burrs
or nicks that could possibly damage the oil seals. Lubricate the shaft and
spacer with grease.
9. Install spindle shaft spacer onto shaft. Place thin sleeve or tape on spindle
shaft splines to prevent seal damage during shaft installation.
10. Carefully slide spindle shaft with spacer up through spindle housing. The
bottom oil seal and spindle spacer fit together when the spindle is fully
installed.
11. Install greased O−ring to top of spindle shaft.
12. Install pulley (hub down), hardened washer and lock nut to spindle shaft.
Tighten lock nut from 176 to 203 N·m (130 to 150 ft−lb).
Pneumatic grease guns can produce high pressure inside spindle
housing that can damage spindle seals. Pneumatic grease guns,
therefore, are not recommended to be used for greasing of spindle
housings.
13. Attach a hand pump grease gun to grease fitting on housing and fill housing
cavity with grease until grease starts to come out of lower seal.
14. Rotate spindle shaft to make sure that it turns freely.
IMPORTANT
(Figure
(Figure
IMPORTANT
Page 8–20
334).
336). Make sure upper seal is
Groundsmaster ®
16227SL Rev B
5900 & 5910