Toro 04553 User manual

1
All Rights Reserved
Printed in the USA
W2005 by The Toro Company
8111 Lyndale Avenue South
Bloomington, MN 55420-1196
3–Wheel Drive Kit
Greensmaster)3250–D
Model No. 04553
Form No. 3353–811 Rev B
Installation Instructions
Removing the Existing Wheel
1. Park the tractor on a level surface and set the parking
brake. Turn the ignition key to Off to stop the engine.
Remove the key.
Accidental starting of the engine could seriously
injure you or other bystanders.
Remove the key from the ignition switch before
you do any maintenance.
Caution
2. Lift the rear of the traction unit and remove the tire
assembly from the castor fork.
3. Remove the wheel hub assembly from the tire
assembly. Retain the lug nuts.
4. Remove the adapter plates from the castor fork.
5. Remove the grease fitting from the motor and hub
assembly (Fig. 1).
1
2
3
6
7
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Figure 1
1. Motor and hub assembly
2. Grease fitting
3. Standard flangette
4. Bearing
5. Relube flangette
6. Setscrew
7. Adapter Plate
Assembling the Rear Wheel
1. Mount the tire assembly to the motor and hub
assembly with 4 lug nuts. Torque the lug nuts to 70–90
ft.-lb. (95–122 N⋅m). The valve stem should be on the
same side as the lug nuts.
2. Install the grease fitting in the hub assembly, pointing
it away from the tire.
3. Insert the flangettes and bearing onto the end of the
motor shaft as shown in Figure 1.
4. Position the motor hub, flangettes w/bearing, and tire
assembly into the castor fork. The ports on motor
should face to the rear.
5. Loosely secure the motor to the left, inside of the
castor fork with 2 socket head screws and 2 nuts.
6. Loosely secure the flangettes w/bearing and adapter
plate to the right inside of the castor fork with 3
screws, 3 locknuts, and a bearing tab. Position the
grease fitting on the flangette downward. Tighten
motor screws to 85 ft.-lb. (115 N⋅m) and the flangette
screws to 30 ft.-lb. (41 N⋅m).
1
2
Figure 2
1. Bearing tab 2. Decal
7. Apply loctite (not supplied) to the bearing setscrews
and torque them to 80–100 in.-lb. (9–11 N⋅m).

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8. Verify the overrunning bearing operation by checking
that the tire rolls freely forward, but engages the wheel
motor when rolled backwards.
9. Lower the rear of the traction unit to the ground.
10. Apply the decals to each side of the castor fork as
shown in Figure 2.
Installing the Hoses
1. Using the dimensions shown in Figure 3, locate, mark,
and drill 4 holes (9/32 in. diameter) into the right-hand
frame tube.
11
+ 1/4 in.
11
+ 1/4 in.
1 + 1/16 in.1 + 1/16 in.
1
Figure 3
1. Right-hand frame tube
2. Secure the hose clamp brackets to the frame as shown
in Figure 4 with 4 self tapping screws.
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Figure 4
1. Hose clamp bracket
3. Disconnect the lower hydrostat hose from the
hydrostat (Fig. 5) and from the upper bulkhead tee
fitting to the front wheel motors (Fig. 6). Remove and
discard it.
1
Figure 5
2. Hydrostat hose (upper)
4. Connect the 90 degree fitting end of the new (shortest)
hose to the lower port of the hydrostat. Route the hose
through the lower position in the hose clamps, behind
castor fork, and to the lower port of the rear wheel
motor.
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Figure 6
1. Upper bulkhead tee fitting
5. Connect the 90 degree fitting end of the new hydraulic
hose (longest hose) to the open upper bulkhead tee
fitting. Route the hose through the upper position in
the hose clamps, behind the castor fork, and to the
upper port in the rear wheel motor.
6. Secure the hose ends to the fittings.
7. Secure the hoses together at the rear of the unit with a
cable tie.

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8. Turn the steering fork fully side to side to check for
proper hose flex and position. The hoses should not
rub on the tanks, steering fork, or steering hoses. Note
that the hose clamp brackets are slotted vertically to
allow for adjustment. Secure the hoses in the brackets.
9. Grease all fittings with No. 2 General Purpose Lithium
Based grease.
Installing the Seat Belts
1. Install each end of the seat belt to the holes in the back
of the seat with screws (7/16 x 1 in.) and lock washers
(7/16 in.) (Fig. 7). Tighten them securely. The latch
side of the belt should be mounted to the left side of
the seat.
Note: When operating the machine, always use the seat
belt and ROPS together.
1
2
3
4
Figure 7
1. Seat belt
2. Lynch pin
3. Seat pin
4. Seat support
2. Install the lynch pin into the seat pin to secure the seat
support (Fig. 7).
Installing the ROPS
1. Lower the ROPS frame onto the mounting brackets,
aligning the mounting holes as shown in Figure 8.
Note: To allow installation of the ROPS mounting nut on
the right side of the machine, the double clamp holding
the steering cylinder hoses next to the ROPS support must
be rotated 180_.
2. Secure each side of the roll bar to the mounting
brackets with 2 bolts (5/8 x 4-1/2 in.) and locknuts.
Torque the fasteners to 135–165 ft.-lb. (183–224 N⋅m).
Note: When operating the machine, always use the seat
belt and ROPS together.
1
Figure 8
1. ROPS

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Hydraulic Schematic
LOWER
RAISE
#1
L1B L1A
#2
L2B
L2A
#3
L3B L3A
OPTIONAL VALVES
LIFT CYLINDERS
TRACTION WHEEL MOTORS
S1
FORWARD
T
S2
S3
S4
R1
R2
FC1
LC1
RD1
01
P1 STPT P2
M4 M5
DUMP VALVE
R4
P3
HYDROSTAT
1500 LOW IDLE 2750 HIGH IDLE (DIESEL
OIL COOLER
OIL FILTER
P1 P2
ENGINE RPM
GEAR PUMP
MANIFOLD BLOCK
.05
POWER STEERING VALVE
L R
PB
T
P
MA MB
REEL MOTORS
MOW BACKLAP
M1
M2 M3
V1
R5
OPTIONAL KIT
.05
.05
FRONT
WHEEL DRIVE MOTOR
REAR