Service Manual

Groundsmaster 4500--D/4700--D Page 3 -- 17 Kubota Diesel Engine (Rev. A)

Disassembly

1. Hydraulic pump assembly needs to be removed from

engine before coupling can be serviced (see Pump As-

sembly in Chapter 4 -- Hydraulic Systems).

2. Remove pump adapter plate, spring center coupling,

and coupling spacer from engine using Figure 18 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 19 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(23to28N--m).

3. Place dowels in locating holes of coupling spacer

(Fig. 19).

4. Position spring center coupling (coil springs toward

engine (Fig. 20)) over dowels. Secure coupling to cou-

pling spacer with cap screws and lockwashers. Torque

capscrewsfrom35to43ft--lb(48to58N--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.

Figure 19

1. Coupling spacer

2. Shoulder bolt position

3. Cap screw position

4. Dowel position

Figure 20

Engine Side

Spring Center

Coupling

Hydraulic

Pump Side

Kubota

Diesel Engine