Toro Wheel Horse 78361 Bedienungsanleitung

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. 3319–650 Rev A

Wheel Horse

48” Side Discharge

Mower

for

Classic Garden Tractor

Model No. 78361 – 8900001 & Up

The TORO Co. – 1997

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.

m–2828

1. Modeland 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. . . . . . . . . . . . . .

Assembly 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Loose Parts 3. . . . . . . . . . . . . . . . . . . . . . . . .

Installing Discharge Chute 4. . . . . . . . . . . . .

Attach Adjustable Link 5. . . . . . . . . . . . . . .

Installing the Mower 5. . . . . . . . . . . . . . . . .

Front-to-Rear Blade Slope 8. . . . . . . . . . . . .

Transport Height Adjustment 9. . . . . . . . . . .

Removing the Mower 9. . . . . . . . . . . . . . . . .

Operation 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Side Discharge 11. . . . . . . . . . . . . . . . . . . . . .

Operating the Power Take Off (PTO) 11. . . .

Page

Attachment Lift Lever 12. . . . . . . . . . . . . . . .

Attachment Power Lift 12. . . . . . . . . . . . . . . .

Adjusting Height-of-Cut 13. . . . . . . . . . . . . .

Tips for Mowing Grass 14. . . . . . . . . . . . . . .

Maintenance 15. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service Interval Chart 15. . . . . . . . . . . . . . . .

Cutting Blade 16. . . . . . . . . . . . . . . . . . . . . . .

Greasing and Lubrication 18. . . . . . . . . . . . . .

Blade Drive Belt 18. . . . . . . . . . . . . . . . . . . . .

Power Take Off (PTO) Belt 19. . . . . . . . . . . .

Storage 20. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 21. . . . . . . . . . . . . . . . . . . . . . . . .

Safety

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 DEFLECTOR

(Part No. 93–1122) ON MOWER

LEFT AND RIGHT SIDES

(Part No. 92–7108)

NEXT TO H-O-C LEVER

(Part No. 106753)

Assembly

Loose Parts

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

DESCRIPTION QTY. USE

Grass deflector

Torsion spring

Washer 1/2” (13 mm)

Cotter pin 3/4” (19 mm)

Plastic washer

Rubber bushing

Jam nut 3/8–16

Install grass deflector

V belt

Idler assembly

Belt cover

Locknut

Install mower to tractor

Operator’s Manual 1Read before operating

Assembly

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 AVOID THE HAZARD

•NEVER remove 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).

Installing Discharge Chute

1. Locate items show (Fig. 1).

2. Place spring short end into small hole in the

discharge chute (Fig. 1).

3. Position spring and discharge chute over post on

rear of deck and secure with 1/2” (13 mm)

washer and 3/4” (19 mm) cotter pin (Fig. 1).

4. Slide rubber bushing and plastic washer over

stud at front of mower.

5. Place discharge chute over stud and secure with

second plastic washer and 3/8” jam nut (Fig. 1).

m–5651

Top View

Figure 1

1. Dischargechute

2. Spring

3. Cotter pin, 3/4 in.

4. Washer, 1/2 in.

5. Rubber bushing

6. Plastic washer

7. Jam nut, 3/8 in.

8. Straight end of spring

9. Small hole in discharge

chute

10. Wheel

IMPORTANT: Discharge chute must be

spring loaded in the down position. Lift chute

up to test that it snaps to the full down

position.

Assembly

Attach Adjustable Link

1. Place adjustable link trunnion into rear wheel

shaft bracket and secure with hairpin cotter

(Fig. 2).

m–2815

Figure 2

1. Adjustable link trunnion 2. Hairpin cotter

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. Open front and mid-mount hitches by pushing

release button and moving lock handles forward

(Fig. 3).

m–2312

Figure 3

1. Front hitch

2. Mid-mount hitch 3. Release button

4. Lock handle

Assembly

4. Slide the mower under the chassis from the right

side and align attachment lift with slot in center

lever bar (Fig. 4).

5. 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.

6. Place attachment lift pin into slot in center lever

bar and secure with 3/4” (19 mm) washer and

hairpin cotter (Fig. 4).

m–2824

Figure 4

1. Attachmentlift

2. Slot-center level bar 3. Washer

4. Hair pin cotter

7. Rotate front mounting shaft so fork faces up and

align so spacers are between mid-mount hitch

plates (Fig. 5).

8. Lift mower with attachment lift and guide fork

to capture hitch rod (Fig. 5). Close mid-mount

hitch lock handle.

3m–2825

Figure 5

1. Front mounting shaft

2. Fork

3. Spacer

4. Mid-mount hitch plate

5. Hitch rod

9. Remove the two wing nuts and belt cover from

the tractor (Fig. 6).

m–25341

Figure 6

1. Belt cover 2. Wing nut

Assembly

10. Remove hairpin cotters from trunnion and

bottom of yoke (Fig. 7).

11. Unlatch and remove locking clevis pin that

secures yoke assembly to clutch shaft. Pivot

yoke out and forward to remove from clutch

shaft and engagement plate (Fig. 7).

12. Place belt in inside pulley groove (Fig. 7).

13. Assemble yoke and engagement plate and attach

locking clevis pin, trunnion and hairpin cotters

to secure (Fig. 7).

m–3443

Figure 7

1. Hairpincotter

2. Trunnion

3. Engagement plate

4. Locking clevis pin

5. Yoke

6. Clutch shaft

7. Inside groove

14. Place pulley assembly into front hitch and lock

by moving latch rearward (Fig. 8).

m–2810

Figure 8

1. Pulley assembly

2. Front hitch 3. Latch

15. Route belt around V and flat pulleys and loop

over center mower spindle, top pulley.(Fig. 9).

16. Check that spacer is on shaft and install belt

cover with rod in hole. Secure with locknut

(Fig. 9).

17. Turn knob counterclockwise to tighten belt

(Fig. 9). Tighten until there is 1” (26 mm) belt

movement between engine clutch and idler

pulley when slight pressure is applied to the belt.

m-2823

Figure 9

1. V pulley

2. Flat pulley

3. Upper mower pulley

4. Spacer

5. Belt cover

6. Locknut

7. Knob

18. Install belt cover (Fig. 6).

Assembly

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 1/8–1/4” (4–7 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. Adjust height-of-cut lever on mower to the

middle of the range and lower attachment lift.

3. Carefully rotate blades so they are facing front

and rear (Fig. 10).

4. Measure between the tip of the front blade

(Fig. 10) and the tip of the rear blade to the flat

surface. If the front blade tip is not 1/8–1/4”

(4–7 mm) lower than the rear blade tip adjust

rear adjustment link.

Front 1078

Figure 10

1. Bladefront to rear

2. Measure front blade tip 3. Measure rear blade tip

4. Measure here

5. To adjust front-to rear blade slope turn locknut

on rear adjustable link (Fig. 11).

Note: To raise the front of the mower, turn

locknut clockwise, to lower front turn

counterclockwise.

m–3499

Figure 11

1. Adjustablelink 2. Locknut

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