Toro 73552 Manual



The T

oro Company – 1999

FORM NO. 3321–970

SET UP

INSTRUCTIONS

MODEL NO. 73552–9900001 & UP

523Dxi GARDEN TRACTOR

Loose

Parts

Note: Use the chart below to identify parts for assembly.

DESCRIPTION QTY. USE

Steering Wheel

Boot W

asher

Nut

Lock W

asher

rim Cover

Installing the steering wheel

Seat Assembly

Shoulder Bolt – 5/16”

Locknut – 5/16”

Installing the seat

Hitch Pin

Hairpin Cotter

Flat W

asher – .50” I.D.

Installing the drawbar hitch pin

Key 2

Use in ignition and “Key Choice” switches

Operator’

s Manual

Engine Operator

’

s Manual

Riding Mower Safety V

ideo

Read before operating the tractor

Attach to the tractor

“Thank Y

ou” Card

1 Read

Set-Up Instructions

Installing

the Seat

1. Mount the seat to the seat base using two 5/16”

shoulder bolts and lock nuts (Fig. 1).

2. Insert the seat switch wire through the center

opening in the seat base (Fig 1).

3. Push the seat switch wire connector into the wire

harness connector

m–3453

Figure 1

1. Seat

2. Seat

base

5/16” shoulder bolt (2)

5/16” Locknut (4)

Seat switch wire

connector

Opening for seat switch

wire

Installing

the Steering Wheel

1. Install the boot washer onto the steering shaft

(Fig. 2).

2. Remove the plastic trim cover from the steering

wheel (Fig. 2)

3. Install the steering wheel onto the shaft,

carefully aligning the splines (Fig. 2).

Note: There is no fixed straight ahead

position on power steering models.

4. Secure the steering wheel to the shaft with a lock

washer and nut

(Fig. 2). Tighten the retaining

nut to 45–50 ft–lbs.

5. Install the trim cover on the steering wheel.

m–2482

Figure 2

1. Boot

washer

Steering shaft

Steering wheel

Lock washer

5. Nut

6. T

rim cover

Checking

Front Wheel T

oe–In

1. With the tractor on a level surface, check to

make sure the front wheel toe-in is between 1/8”

and 1/4”. For instructions on adjusting toe-in,

refer to the Maintenance section in Operator’s

Manual.

Set-Up Instructions

Check

to Insure that Steering

Linkage is Centered

1. With the tractor on a level surface, turn the

steering wheel fully to the left and check the

clearance of the left hand spindle stop to the stop

on the front axle. There should be a slight

clearance between the stops (Fig. 3).

m–4265

Front of Tractor

Figure 3

1. Left

hand spindle stop

Axle stop

3. Clearance

2. Repeat for the right front tire in a right turn.

3. If the stops on one side hit, and on the other side

have clearance, shorten the tie rod on the side

that hits, and equally lengthen the tie rod on the

opposite side until both sides have clearance.

Recheck the toe in.

Checking

ire Pressure

Check front and rear tire pressure. The correct front

and rear tire pressure is 20 psi (138 kPa).

Activating

the Battery

POTENTIAL

HAZARD

•Battery electrolyte contains sulfuric acid

which is a deadly poison and it causes

severe burns.

WHAT CAN HAPPEN

•If you carelessly drink electrolyte you could

die or if it gets onto your skin you will be

burned.

HOW TO AV

OID THE HAZARD

•Do not drink electrolyte and avoid contact

with skin, eyes or clothing. Wear safety

glasses to shield your eyes and rubber

gloves to protect your hands.

•Fill the battery where clean water is always

available for flushing the skin.

•Follow all instructions and comply with all

safety messages on the electrolyte container.

1. Remove the battery from the tractor (refer to

Removing the Battery in your tractor Operator’s

Manual).

Note: Never fill the battery electrolyte with

the battery installed in the tractor.

2. Remove the cell cover from the battery. Slowly

pour electrolyte into each cell until the

electrolyte level is up to the lower part of the

tube (Fig. 4). Use an electrolyte with a specific

gravity of 1.265.

Set-Up Instructions

m–3799

Figure 4

1. Cell

cover

2. Electrolyte 3.

Lower part of tube

POTENTIAL

HAZARD

•Charging battery pr

oduces gasses.

WHAT CAN HAPPEN

•Battery gasses can explode.

HOW TO AV

OID THE HAZARD

•Keep cigarettes, sparks and flames away

from battery.

3. Leave the cell cover off and connect a 3–4 amp

battery charger to the battery posts (Fig. 5).

Charge the battery at a rate of 4 amperes or less

for 4 hours (12 volts).

4. When the battery is fully charged, unplug the

charger from electrical outlet, then disconnect

the charger leads from the battery posts (Fig. 5).

m–3798

Figure 5

1. Positive

battery post

Negative battery post

Red (+) charger lead

Black (–) charger lead

5. Slowly pour electrolyte into each cell until the

level is once again up to the lower part of the

tube (Fig. 4), then install the cell cover.

6. Install the battery in the tractor and connect the

battery cables (refer to Installing the Battery in

your tractor Operator’s Manual).

Note: Do not run the tractor with the battery

disconnected.

Set-Up Instructions

Installing

the Drawbar Hitch

Insert the drawbar hitch pin into the drawbar hitch

and secure it with a .50” I.D. flat washer and hairpin

cotter (Fig. 6).

m–2481

Figure 6

1. Drawbar

hitch pin

Drawbar hitch

.50” Flat washer

Hairpin cotter

Checking

the W

iring and

Fasteners

•Inspect the tractor for any loose electrical

connections and secure them as required. Check

the wire routing to make sure moving parts do

not interfere with wires and cause a short.

•Assure all fasteners are tight.

Burnishing

the Clutch

The following break–in procedure must be performed

as part of predelivery service or when a new clutch is

installed.

Note: There must be a PTO driven

attachment installed to provide a load

in order to burnish the clutch facings

properly.

1. Run the engine at full throttle and engage the

clutch bringing the load to full speed. Then

disengage the clutch.

2. Let the load come to a full stop, then engage

again.

3. Repeat these procedures (1 and 2) 5 times.

Set-Up Instructions

Test

Driving the T

ractor

1. Check the oil level in the crankcase (refer to

Engine Oil in your tractor Operator’s Manual for

oil type, viscosity and crankcase capacity).

2. Check the oil level in the transaxle (refer to

Transaxle Fluid in your tractor Operator’s

Manual for oil type, viscosity and capacity).

3. Check that the coolant level is between the two

lines on the coolant recovery tank when the

engine is cold (refer to Check the Cooling

System in your tractor Operator’s Manual).

4. Make sure all water is drained from the fuel filter

(refer to Draining Water From The Fuel

Filter/Water Separator in your tractor Operator’s

Manual).

5. Check to make sure all lubrication points have

been greased as shown in the Maintenance

section of tractor Operator’

s Manual.

6. Fill the tank with fresh diesel fuel with a

minimum cetane rating of 40 and the proper

grade for the ambient temperature conditions

(refer to Adding Fuel in your tractor Operator’s

Manual) Open the fuel shutoff valve and check

the fuel hose and fittings for leaks.

7. As applicable, check and test the operation of the

following:

•Engine and throttle controls

•Gauges

•

Headlights and taillights

•Indicator lights

•PTO clutch and brake

•Lift system

•Service and parking brakes

•T

ransmission controls

•Steering

•Tractor operation in forward and reverse

8. Test the operation of the safety interlock system

(refer to the tractor Operator’s Manual for the

correct procedure).

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