Groundsmaster 4500--D/4700--D Cutting DecksPage 8 -- 11
3. Usinganarborpress, pushthebearing cups intothe
top and bottom of the spindle housing. The top bearing
cup must contact the outer bearing spacer previously
installed, and the bottom bearing cup must contact the
large snap ring. Make sure that the assembly is correct
bysupportingthefirstbearingcupandpressingthesec-
ond cup against it (Fig 7).
4. Pack the bearing cones with grease. Apply a film of
grease on lips of oil seals.
5. Install lower bearing cone and greased oil seal into
bottom of spindle housing. Note: The bottom seal must
havethelipfacingout(down)(Fig.8).Thissealinstalla-
tion allows grease to purge from the spindle during the
lubrication process.
IMPORTANT: If bearings are being replaced, make
sure to use the spacer ring that is included with the
new bearing set (Fig. 6).
6. Slide spacer ring and inner bearing spacer into
spindle housing, then install upper bearing cone and
greased oil s eal into top of housing. Note: The upper
seal must have the lip facing out (up) (Fig. 8).
7. Inspect the spindle shaft and shaft spacer to make
suretherearenoburrsornicksthatcouldpossiblydam-
age the oil seals. Lubricate the shaft and spacer with
grease.
8. Install spindle shaft spacer onto s haft. Place thin
sleeve or tape on spindle shaft splines to prevent seal
damage during shaft installation.
9. Carefully slide spindle shaft with spacer up through
spindlehousing.Thebottomoilsealand spindlespacer
should fit together when the s pindle is fully installed.
10.Thread spindle nut onto s haft and tighten nut from
130 to 160 ft--lb (177 to 216 N--m).
IMPORTANT: Pneumatic grease guns can produce
highpressure insidespindle housing that can dam-
age spindle seals. Pneumatic grease guns, there-
fore, are not recommended to be used for greasing
of spindle housings.
11.Attachahandpumpgreaseguntooneofthegrease
fittingsonhousingandfillhousingcavitywithgreaseun-
til grease starts to come out of lower seal.
12.Rotate spindle shaft to make sure that it turns freely.
13.Install blade spindle assembly to cutting deck (see
Blade Spindle Installation in this section).
1. Bearing cup
2. Large snap ring
3. Large spacer
4. Arbor press
5. Support
6. Arbor press base
Figure 7
PRESS
2
1
3
4
6
5
1. Bottom seal installation 2. Upper seal installation
Figure 8
1
2
Cutting Decks
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