Toro 78218 User manual

Operator’s Manual

IMPORTANT: Read this manual carefully. It contains information about your

safety and the safety of others. Also become familiar with the controls and

their proper use before you operate the product.

FORM NO. 3319–776GB

Wheel

Horse



38” Side Discharge

Mower

for

Lawn

& Garden T

ractors

Model No. 78218 – 8900001 & Up

Printed in USA

Introduction

We want you to be completely satisfied with your

new product, so feel free to contact your local

Authorized Service Dealer for help with service,

genuine replacement parts, or other information you

may require.

Whenever you contact your Authorized Service

Dealer or the factory, always know the model and

serial numbers of your product. These numbers will

help the Service Dealer or Service Representative

provide exact information about your specific

product. You will find the model and serial number

plate located in a unique place on the product as

shown below

1222

1. Model

and Serial Number Plate

For your convenience, write the product model and

serial numbers in the space below.

Model No:

Serial No.

The warning system in this manual identifies

potential hazards and has special safety messages that

help you and others avoid personal injury, even death.

DANGER, WARNING and CAUTION are signal

words used to identify the level of hazard. However,

regardless of the hazard, be extremely careful.

DANGER signals an extreme hazard that will cause

serious injury or death if the recommended

precautions are not followed.

WARNING signals a hazard that may cause serious

injury or death if the recommended precautions are

not followed.

CAUTION signals a hazard that may cause minor or

moderate injury if the recommended precautions are

not followed.

Two other words are also used to highlight

information. “Important” calls attention to special

mechanical information and “Note” emphasizes

general information worthy of special attention.

The left and right side of the machine is determined

by sitting on the seat in the normal operator’s

position.

Contents

Page

Safety and Instruction Decals 2.

. . . . . . . . . . . . .

Installation 3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing Discharge Chute and Tension Spring 3

Installing the Mower 4

. . . . . . . . . . . . . . . . .

Transport Height Adjustment 5

. . . . . . . . . . .

Side-to-Side Mower Leveling 6

. . . . . . . . . .

Front-to-Rear Blade Slope 7

. . . . . . . . . . . . .

Removing the Mower 9

. . . . . . . . . . . . . . . . .

Operation 10

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating the Power Take Off (PTO) 10

. . . .

Attachment Lift Lever 11

. . . . . . . . . . . . . . . .

Attachment Power Lift 11

. . . . . . . . . . . . . . . .

Adjusting Dial-A-Height 12

. . . . . . . . . . . . . .

Adjusting Anti-Scalp Rollers 12

. . . . . . . . . . .

Tips for Mowing Grass 13

. . . . . . . . . . . . . . .

Page

Maintenance 14

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service Interval Chart 14

. . . . . . . . . . . . . . . .

Cutting Blade

. . . . . . . . . . . . . . . . . . . . . . .

Greasing and Lubrication 17

. . . . . . . . . . . . . .

Blade Drive Belt 17

. . . . . . . . . . . . . . . . . . . . .

Washing Underside of Mower 18

. . . . . . . . . .

Storage 19

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 20

. . . . . . . . . . . . . . . . . . . . . . . . .

Safety

and Instruction Decals

Safety decals and instructions are easily visible to the operator and are located near

any area of potential danger. Replace any decal that is damaged or lost.

ON GRASS DEFLECT

AND ON

MOWER RIGHT SIDE

(Part No. 93–7010)

UNDER GRASS DEFLECT

(Part No. 93–7009)

ON MOWER CENTER

(Part No. 93–6679)

ON MOWER LEFT SIDE

(Part No. 93–7319)

Installation

Installing

Discharge Chute and

ension Spring

1. Locate items show (Fig. 1).

2. Slide rod, non-rib end, through rear discharge

chute bracket.

3. Place spring, with end wires down, between

discharge chute brackets, and slide rod through

second dischar

ge chute bracket.

4. Insert rod at front of discharge chute into short

stand-of on deck. Secure rear end of rod to deck

with long stand-off and nut (Fig. 1).

71228

Figure 1

1. Discharge

chute

2. Bracket

3. Spring

4. Rod

Short stand-of

Long stand-of

7. Nut

IMPORTANT: Discharge chute must be

spring loaded in the down position. Lift chute

up to test that it snaps to the full down

position.

POTENTIAL HAZARD

•Without the grass deflector, discharge

cover, or complete grass catcher assembly

mounted in place, you and others are

exposed to blade contact and thrown

debris.

WHAT CAN HAPPEN

•Contact with rotating mower blade(s) and

thrown debris will cause injury or death.

HOW TO AV

OID THE HAZARD

•

NEVER r

emove the grass deflector from

the mower because the grass deflector

routes material down toward the turf. If the

grass deflector is ever damaged, replace it

immediately.

•Never put your hands or feet under the

mower.

•Never try to clear discharge area or mower

blades unless you move the power take off

(PTO) to “OFF” and rotate the ignition key

to “OFF.” Also remove the key and pull the

wire off the spark plug(s).

5. Install spring between idler arm and bolt at belt

cover (Fig. 2).

1645

Figure 2

1. Spring

2. Idler 3. Bolt

Installation

Installing

the Mower

1. Park the machine on a level surface, disengage

the power take off (PTO), set the parking brake,

and turn the ignition key to “OFF” to stop the

engine. Remove the key.

2. Turn the front wheels fully to the left and raise

attachment lift lever all the way to the latched

position; refer to tractor Operator’

s Manual.

3. Slide the mower under the chassis from the right

side (Fig. 3) and align rear mounting bushings

with ends of lift arms.

1232

Figure 3

1. Lift

arms

Mounting bushing

4. Straighten the front wheels, turn Dial-a-Height

knob counterclockwise, all the way, and lower

the attachment lift lever to the mounting

position; refer to tractor Operator’

s Manual.

5. Place rear guide bushings, first left side then

right, onto lift arms then slide deck left into

position (Fig. 4).

6. Secure deck to rear lift arms with washers and

hairpin cotters (Fig. 4).

7. Attach rear link to attachment lift with washer

and hairpin cotter (Fig. 4).

31234

Figure 4

1. Lift

arm

2. Washer 3.

Hair pin cotter

Rear link

8. Install front adjustable link to front lift arm with

washer and hairpin cotter (Fig. 5).

9. Secure adjustable link to front lift arm with

washer and hairpin cotter (Fig. 5).

1242

Figure 5

1. Adjustable

link

2. W

asher and hairpin cotter

Installation

10. Pull on idler pulley to relax belt tension and

install mower drive belt onto the top engine

drive pulley groove (Fig. 6).

Note: Make sure belt is properly located in

engine and deck pulleys and around

idler pulley.

IMPORTANT: If extreme low cut height is

used install mower drive belt in bottom

engine pulley groove.

Figure 6

op V

iew

1. Mower

belt

Engine pulley

11. Check mower level; refer to Side-to-Side Mower

Leveling page 6, and Front-to-Rear Blade

Slope page 7.

12. Raise attachment lift lever all the way to the

latched position and adjust mower height-of-cut;

refer to page and transport height adjustment;

refer to page 5.

Transport

Height Adjustment

Transport height is set at the factory and should not

need adjustment; however if the belt covers contact

the footrest in the raised position, adjustment is

required.

1. Adjust by turning transport height nut, (Fig. 7)

on lift mechanism, clockwise to raise or

counterclockwise to lower mower.

2. Adjust nut until there is 1/16–1/8 inch clearance

between belt cover and left footrest.

1223

Figure 7

1. Nut

Installation

Side-to-Side

Mower Leveling

The mower blades must be level from side to side.

Check the side-to-side level any time you install the

mower or when you see an uneven cut on your lawn.

Before you level the mower, set the air pressure in the

front and rear tires to 12 psi (.85 kPa).

3” to 4” Height-of-Cut Range

When the mower height-of-cut is set to the 3” to 4”

range the mower is suspended from the tractor. There

is one side-to-side adjustment for this height range.

1. Park the machine on a level surface, disengage

the power take off (PTO), set the parking brake,

and turn the ignition key to “OFF” to stop the

engine. Remove the key.

2. Raise attachment lift lever all the way to the

latched position.

3. Carefully rotate blade(s) side to side (Fig. 8).

Measure between the outside cutting edges and

the flat surface (Fig. 8). If both measurements

are not within 3/16” (4.762mm), an adjustment

is required; refer to steps 4 and 6.

Figure 8

1. Blades

side to side

Outside cutting edges

Measure here

4. Loosen adjustment bolt on one side and rotate

hanger bracket to raise or lower mower (Fig. 9).

5. After adjusting, tighten bolt and check

side-to-side level.

IMPORTANT: If hanger is rotated to the end

of adjustment on one side and mower is not

level, adjust the opposite side.

1224

Figure 9

1. Bolt 2. Hanger

bracket

6. Now check the front-to-rear blade slope; refer to

Front-to-Rear Blade Slope, page 7.

Installation

3/4” to 3” Height-of-Cut Range

When the mower height-of-cut is set to the 3/4” to 3”

range the gage wheels contact the ground. There is a

second side-to-side adjustment for this height range.

1. Park the machine on a level surface, disengage

the power take off (PTO), set the parking brake,

and turn the ignition key to “OFF” to stop the

engine. Remove the key.

2. Set Dial-a-Height to the middle of the

height-of-cut range; refer to Setting

Height-of-Cut page .

3. Carefully rotate blade(s) side to side (Fig. 8).

Measure between the outside cutting edges and

the flat surface (Fig. 8). If both measurements

are not within 3/16” (4.762mm), an adjustment

is required.

4. Raise attachment lift lever to release pressure on

the gage wheels. Remove hairpin cotter and

washer from trunnion (Fig. 10).

5. Rotate trunnion to adjust side-to-side level

adjustment (Fig. 10).

1230

Figure 10

1. Trunnion 2. Hairpin

cotter and washer

6. After adjusting, secure trunnion with washer and

hairpin cotter, lower attachment lift and check

side-to-side level.

Front-to-Rear

Blade Slope

Check the front-to-rear blade slope any time you

install the mower. Before checking the slope, set air

pressure in the front and rear tires to 12 psi (.85 kPa).

If the front blade tip is not 0–1/8” (0–3.2 mm) lower

than the rear blade tip, adjust the blade slope using

the following instructions:

1. Park the machine on a level surface, disengage

the power take off (PTO), set the parking brake,

and turn the ignition key to “OFF” to stop the

engine. Remove the key.

2. Check and adjust side-to-side blade level if you

have not checked the setting; refer to

Side-to-Side Mower Leveling, page 6.

3. Adjust the Dial-A-Height knob so the

height-of-cut is in the middle of the range and

lower attachment lift.

4. Carefully rotate blades so they are facing front

and rear (Fig. 11).

5. Measure between the tip of the front blade

(Fig. 11). and the tip of the rear blade to the flat

surface. If the front blade tip is not 0–1/8”

(0–3.2 mm) lower than the rear blade tip adjust

front adjustment link.

Figure 1

1. Blade

front to rear

Measure front blade tip

Measure rear blade tip

Installation

6. To adjust front-to rear blade level loosen jam nut

on front adjustable link. (Fig. 12).

7. Rotate the bolt on front adjustable link to change

front-to rear blade level (Fig. 12).

Note: To raise the front of the mower,

shorten the adjustable link by turning

bolt clockwise.

31227

Figure 12

1. Adjustable

link

Jam nut

3. Bolt

8. When front-to-rear slope is correct, tighten jam

nut. Recheck side-to-side mower level; refer to

Side-to-Side Mower Leveling, page 6.

9. Push the wire onto the spark plug(s).

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