Toro ProLine 30152 Manuale utente

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. 3321-527

ProLine

52” Mower

for Mid-Size Traction Unit

Model No. 30152 – 890001 & 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.

1074

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

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

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

Installing the Castor Wheels 4. . . . . . . . . . .

Installing the Carrier Frame

to the Traction Unit 4. . . . . . . . . . . . . . . . .

Installing the Cutting Deck 5. . . . . . . . . . . .

Installing the Drive Belt 5. . . . . . . . . . . . . . .

Operation 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Side Discharge or Mulch Grass 7. . . . . . . . .

Engaging the Mower Blades (PTO) 7. . . . . .

Adjusting the Height-of-Cut 8. . . . . . . . . . .

Adjusting Gage Wheels 8. . . . . . . . . . . . . . .

Tips for Mowing Grass 9. . . . . . . . . . . . . . .

Page

Maintenance 10. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service Interval Chart 10. . . . . . . . . . . . . . . .

Cutting Blades 10. . . . . . . . . . . . . . . . . . . . . .

Correcting Cutting Unit Mismatch 13. . . . . .

Setting the Front-to-Rear Pitch 13. . . . . . . . .

Setting the Side-to-Side Leveling 14. . . . . . .

Greasing the Bearings and Bushings 15. . . . .

Replacing the Deck Belt 15. . . . . . . . . . . . . .

Replacing the Drive Belt 16. . . . . . . . . . . . . .

Replacing the Castor Wheel Fork Bushings 17

Servicing the Castor Wheels and Bearings 18

Replacing the Grass Deflector 19. . . . . . . . . .

Storage 19. . . . . . . . . . . . . . . . . . . . . . . . . . . .

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.

See Traction Unit Operator’s Manual for

Glossary of Safety Symbols

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Assembly

Loose Parts

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

DESCRIPTION QTY. USE

Castor Wheel Assembly

Thrust Washer

Spacer

Retaining Ring

Install castor wheels to carrier frame

Carrier Frame

Flange Screw 1/2–13 x 1” (25 mm)

Flange Nut 1/2–13

6Install carrier frame to traction unit

Adjusting Shaft

Jam Nut 1/2–13

Spacer 1/2” (13 mm)

Spring

Bushing

Install adjusting shafts

Clevis Pin

Hairpin Cotter

4Install cutting unit to carrier frame

Operator’s Manual

Parts Catalog

Read before operating

Ordering parts

Assembly

Installing the Castor Wheels

1. Place the (2) thrust washerS and spacer onto the

castor wheel fork (Fig. 1).

2. Insert the castor wheel fork into the carrier frame

mounting tube (Fig. 1).

3. Install (2) thrust washer onto the castor wheel

fork, then secure with a retaining ring (Fig. 1).



Figure 1

1. Retaining Ring

2. Thrust Washer (4)

3. Carrier Frame Mounting

Tube

4. Spacer

5. Castor Wheel Fork

4. Set the castor wheel tire pressure to 12–15 psi

(83–103 kPa).

Installing the Carrier Frame to

the Traction Unit

1. Align the carrier frame holes with the mounting

holes in the traction unit frame (Fig. 2).

2. Fasten each side of the carrier frame to the

traction unit with three (3) 1/2” x 1” (25 mm)

flange screws and locknuts. Torque the mounting

screws to 60–80 ft-lb (81–109 Nm) (Fig. 2).



Figure 2

1. Carrier Frame 2. Traction Unit Frame

Assembly

Installing the Cutting Deck

1. Position the cutting deck under the carrier frame.

2. Mount the cutting deck to the carrier frame with

four (4) clevis pins and hairpin cotters (Fig. 3).

Note: All four pins must be in the same hole

locations to prevent uneven cutting.



Figure 3

1. 2” (51 mm) Cut Height

2. 2-1/2” (64 mm) Cut Height

3. 3” (76 mm) Cut Height

4. 3-1/2” (89 mm) Cut Height

5. 4” (102 mm) Cut Height

6. 4-1/2” (114 mm) Cut

Height

7. 5” (127 mm) Cut Height

8. Clevis Pin

9. Carrier Frame

10. Cutting Deck

11. Hairpin Cotter

Installing the Drive Belt

1. Remove the hand knobs holding the deck cover

to the top of the cutting unit and remove the

deck cover.

2. Install the drive belt around the drive pulley on

the traction unit and the upper groove of the

center spindle pulley. The belt must be between

the belt guides (Fig. 4).

3. Reinstall the deck cover onto the cutting unit,

then reinstall and tighten the hand knobs.



Figure 4

1. Belt Guide (2)

2. Traction Unit Drive Pulley 3. Drive Belt

4. Center Spindle Pulley

Assembly

4. Thread two (2) 1/2” jam nuts approximately 9”

(22.8 cm) up on each adjusting shaft (Fig. 5).

5. Slide a 1/2” spacer, spring and bushing onto each

adjusting shaft. Make sure to install the bushing

with the flange end against the spring (Fig. 5).

m–2542

Figure 5

1. 1/2” Jam Nut (2)

2. 1/2” Spacer

3. Spring

4. Bushing

5. Adjusting Shaft

6. Locknut (already installed

on Adjusting Shaft)

6. Insert the spring end of the adjusting shaft into

the hole in the deck mounting bracket. Note that

the small end of the bushing fits into the hole in

the deck bracket. Insert the locknut end of the

adjusting shaft into the carrier frame mounting

tab (Fig. 6).

7. To tension the belt, tighten the front jam nut on

each adjusting shaft until the springs are

compressed to 5” (12.7 cm). Measure the spring

compression between the spacer and the bushing

(Fig. 6).

8. Tighten the rear jam nuts (Fig. 6).

m–2541

Figure 6

1. 5” between the Spacer

and Bushing

2. Deck Mounting Bracket

3. Front Jam Nut

4. Rear Jam Nut

5. Carrier Frame Mounting

Tab

9. Check the position of the belt guides. The guides

should be positioned about 1/8” (3 mm) away

from the belt (Fig. 7). Adjust the belt guides as

necessary.



Figure 7

1. Belt Guide (2) 2. Drive Belt

10. Check the front-to-rear blade pitch. Refer to

Setting the Front-to-Rear Pitch in the

Maintenance section.

Operation

Side Discharge

or Mulch Grass

The mower has a hinged grass deflector that disperses

clippings to the side and down toward the turf.

POTENTIAL HAZARD

•Without the grass deflector 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(s) off the spark plug(s).

Engaging the Mower Blades

(PTO)

The blade control switch (PTO) in conjunction with

the blade control bail engages and disengages power

to the electric clutch and mower blades.

1. Pull on the upper control bar to stop the machine

(Fig. 8).

2. To engage the blades, squeeze the blade control

bail against the upper control bar.

3. Press the blade control rocker switch forward to

“ON”. Hold the blade control bail against the

control bar while operating.

Note: Repeat the procedure to engage the

mower blades if the blade control bail

is released.

4. To disengage the blades, release the blade

control bail, or push the blade control switch to

the “OFF” position.

m–2130

Figure 8

1. Upper Control Bar

2. Blade Control Bail 3. Blade Control Switch

(PTO)

Operation

Adjusting the Height-of-Cut

The height-of-cut is adjustable from 2” to 5” (51 to

127 mm) in 1/2-inch (13 mm) increments by

relocating the clevis pins in different hole locations in

brackets at each corner of the cutting unit (Fig. 9).

Stop the engine before adjusting the height-of-cut.

Note: All four pins must be in the same hole

location for even cutting.



Figure 9

1. 2” (51 mm) Cut Height

2. 2-1/2” (64 mm) Cut Height

3. 3” (76 mm) Cut Height

4. 3-1/2” (89 mm) Cut Height

5. 4” (102 mm) Cut Height

6. 4-1/2” (114 mm) Cut

Height

7. 5” (127 mm) Cut Height

8. Clevis Pin

9. Hairpin Cotter

Adjusting Gage Wheels

The gage wheels must be adjusted in the proper hole

location for each height-of-cut position.

1. After adjusting height-of-cut. raise the

attachment lift lever: Refer to Raising

Attachments.

2. Remove hairpin cotter and pin to change hole

location (Fig. 10).

3. Select a hole position so the gage wheel is 3/8”

(9.5 mm) off the ground for the height-of-cut to

be used (Fig. 10).

4. Insert pin and secure with hairpin cotter.

5. Repeat adjustment on other gage wheels.

m–3197

Figure 10

1. Wheel

2. Pin 3. Hair pin Cotter

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