Toro GroundsmasterR 4300-D Service Manual page 99

Removal (Fig. 65)
1. Park the machine on a level surface, engage parking
brake, lower cutting decks and stop engine. Remove
key from the ignition switch.
2. Remove two (2) flange head screws and flange nuts
that secure drive shaft guard hoop (item 4) to machine
frame. Remove guard.
3. Remove two (2) cap screws (item 5) and flange nuts
(item 9) that secure drive shaft yoke to piston pump input
shaft.
4. Remove six (6) cap screws (item 7) that secure drive
shaft flange to engine flywheel.
5. Remove drive shaft assembly from machine.
Drive Shaft Cross and Bearing Service (Fig. 66)
1. Remove snap rings that secure bearings in yokes.
IMPORTANT: Yokes must be supported when re-
moving and installing bearings to prevent damage.
2. Use a press to remove cross and bearings from
yokes. Thoroughly clean drive shaft yokes.
3. To install new cross and bearings:
A. Apply a coating of grease to bearing bores in end
yoke and shaft yoke.
B. Press one bearing partially into yoke.
C. Insert cross into yoke and bearing.
D. Hold cross in alignment and press bearing in until
it hits the yoke.
E. Install snap ring into yoke groove to secure
installed bearing.
F. Place second bearing into yoke bore and onto
cross shaft. Press bearing into yoke and secure with
snap ring.
G. Repeat procedure for other yoke.
H. Grease cross until grease comes out of all four (4)
cups.
4. Make sure that assembled joint moves without bind-
ing. Slight binding can usually be eliminated by lightly
rapping the yoke lugs with a soft faced hammer. If bind-
ing continues, disassemble joint to identify source of
binding.
Groundsmaster 4300--D
Installation (Fig. 65)
1. Apply antiseize lubricant to traction pump input shaft.
2. Position drive shaft assembly to engine and pump in-
put shaft.
3. Apply Permatex Blue Gel Threadlocker (or equiva-
lent) to threads of cap screws (item 7) that secure drive
shaft flange to engine flywheel. Secure drive shaft
flange to flywheel with six (6) cap screws (item 7).
Torque cap screws from 34 to 42 ft- -lb (46 to 56 N- -m).
4. Slide drive shaft yoke on pump input shaft so yoke is
flush with end of input shaft. Secure drive shaft yoke to
pump input shaft with two (2) cap screws (item 5) and
flange nuts (item 9).
5. Position drive shaft guard hoop to machine frame
and secure with two (2) flange head screws and flange
nuts.
6. Lubricate grease fittings on drive shaft.
2
1
1. End yoke
2. Cross and bearing kit
Page 4 - - 67
4
3
3
Figure 66
3. Snap ring (4 used)
4. Shaft yoke
Hydraulic System