Toro Groundsmaster 4100-D Service Manual page 41

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Disassembly
1. If engine is in machine, hydraulic pump assembly
needs to be removed from engine before coupling can
be serviced (see Pump Assembly in Chapter 4 − Hy-
draulic Systems).
2. Remove pump adapter plate, spring center coupling,
and coupling spacer from engine using Figure 16 as a
guide.
Assembly
1. Position coupling spacer to engine and align mount-
ing holes. Use two shoulder bolts and lockwashers in the
positions shown in Figure 17 to secure the spacer to the
half threaded holes in engine flywheel. Torque shoulder
bolts from 17 to 21 ft−lb (23 to 28 N−m).
2. Install four cap screws and lockwashers to coupling
spacer and flywheel. Torque cap screws from 17 to 21
ft−lb (23 to 28 N−m).
3. Place dowels in locating holes of coupling spacer
(Fig. 17).
4. Position spring center coupling (coil springs toward
engine (Fig. 18)) over dowels. Secure coupling to cou-
pling spacer with cap screws and lockwashers. Torque
cap screws from 35 to 43 ft−lb (48 to 58 N−m).
5. Install plate pins into engine casting. Position pump
adapter plate to engine using plate pins as alignment
points. Secure adaptor plate with cap screws and lock
washers using a star pattern tightening procedure.
6. If engine is in machine, install hydraulic pump as-
sembly (see Pump Assembly in Chapter 4 − Hydraulic
Systems).
Groundsmaster 4100−D
4
2
1
1. Coupling spacer
2. Shoulder bolt position
Hydraulic
Pump Side
Spring Center
Coupling
Page 3 − 19
3
UP
3
Figure 17
3. Cap screw position
4. Dowel position
Engine Side
Figure 18
Kubota Diesel Engine (Rev. A)
2
4

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