Toro 74301, 74325, 74327, 74330, 74350 Service Manual

...
4 (1)

Consumer Products

TimeCutter® Z / Precision® Z

Zero Radius Turn Riding Mower

Service Manual

ABOUT THIS MANUAL

This service manual was written expressly for Toro and Lawn-Boy service technicians. The Toro

Company has made every effort to make the information in this manual complete and correct.

Basic shop safety knowledge and mechanical/electrical skills are assumed. The Table of

Contents lists the systems and the related topics covered in this manual.

For additional information on the electrical system, please refer to the Toro Electrical

Demystifi cation Guide (492-4761) and subsequent. For service information on drive systems, please refer to the Hydro-Gear EZT service manual (492-4778). For information specifi c to the engines used on this unit, refer to the appropriate engine manufacturer’s service and repair instructions.

Toro TimeCutter® Z model year 2003 - 2006 and Lawn-Boy Precision® Z model year 2005 - 2006 are covered in this manual. The manual may also be specifi ed for use on later model products.

The hydrostatic transaxle is a sophisticated piece of machinery. Maintain strict cleanliness control during all stages of service and repair. Cover or cap all hose ends and fi ttings whenever they are exposed. Even a small amount of dirt or other contamination can severely damage the system.

We are hopeful that you will fi nd this manual a valuable addition to your service shop. If you have any questions or comments regarding this manual, please contact us at the following address:

The Toro Company

Consumer Service Training Department

8111 Lyndale Avenue South

Bloomington, MN 55420

The Toro Company reserves the right to change product specifi cations or this manual without notice.

Copyright© All Rights Reserved

©2007 The Toro Company

TABLE OF CONTENTS

SAFETY INFORMATION

. . . . . . . A1-2

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . .

Think Safety First . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A1-2

SPECIFICATIONS

 

 

General Specifi cations Toro TimeCutter® Z . . . . . . . . . . . . . . . . . .

.

. . . . . . A2-2

General Specifi cations Lawn-Boy Precision® Z . . . . . . . . . . . . . . . .

.

. . . . . . A2-4

Hydrostatic Transaxles . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . A2-6

Transaxle Specifi cations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-5

Hydrostatic Transaxles cont. . . . . . . . . . . . . . . . . . . . . . . .

.

. . . . . . A2-7

Torque Specifi cations . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . A2-8

Standard Torque for Dry, Zinc Plated, and Steel Fasteners (Inch Series) . . . . . .

.

. . . . . . A2-9

Standard Torque for Dry, Zinc, and Steel Fasteners (Metric Fasteners) . . . . . . .

.

. . . . . . A2-10

Other Torque Specifi cations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2-11

Equivalents and Conversions . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . .

A2-12

U.S. to Metric Conversions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A2-13

CHASSIS

 

 

 

 

Model and Serial Number Location . . . . . . . . . . . . . . . . . . . .

. . . . . . . .

3-2

Engine Model and Serial Number Identifi cation . . . . . . . . . . . . . . .

. . . . .

.

. . 3-2

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

. . . . .

.

. . 3-2

Front Castor Fork Removal and Installation . . . . . . . . . . . . . . . .

. . . . . . . .

3-3

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . .

3-3

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . .

3-3

Castor Support Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . .

3-4

Side Panel Removal . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . .

3-4

Left Side Panel Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . .

3-4

Right Side Panel and Gas Tank Removal . . . . . . . . . . . . . . . . .

. . . . .

.

. . 3-5

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . .

3-6

Lift Arm Assembly . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . .

3-6

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . .

3-6

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . .

3-6

Belt Replacement . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . .

3-7

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . .

3-7

Belt Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . .

3-8

HYDRO-GEAR TRANSAXLE

Hydro-Gear (310-2200) EZT™ Transaxles . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Internal Service . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . .

4-2

Fluid Change . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . .

4-2

Transaxle Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2

Removing Transaxles from the Hydro Mount Frame . . . . . . . . . . . . . .

. . . . . . .

4-4

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . .

4-5

Wheel Hub Removal . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . .

4-5

Installation Wheel Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-5

Transaxle Installation . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . .

4-6

Purging Procedures - Hydro-Gear Transaxles . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Neutral Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . .

4-9

Tracking Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . .

.

. . . . . . 4-11

Brake Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

. . . . . . 4-11

Actuator Arm Removal . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . .

4-12

TimeCutter Z / Precision Z Service Manual

i

TABLE OF CONTENTS

HYDRO-GEAR TRANSAXLE cont.

 

 

 

 

Actuator Arm Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-14

310-2200 EZT™ Troubleshooting Checklist . . . . . . . . . . . . . . . . . . . . . . . .

4-16

ELECTRICAL SYSTEM

 

 

 

 

Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-2

Relay (Kill Relay) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-2

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-2

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-2

How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-2

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-2

Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-3

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-3

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-3

How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-3

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-3

Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. .

.

. . 5-4

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-4

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-4

How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-4

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-4

PTO Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-5

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-5

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-5

How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-5

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-5

Electric PTO Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. .

.

. . 5-7

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-7

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-7

How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-7

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-7

Coil Resistance Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-7

Measuring Clutch Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-7

Park Brake Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-8

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-8

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-8

How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-8

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-9

Seat Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-9

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-9

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-9

How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-9

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-9

MOWER DECKS - 38”/42”, 44” AND 48” DECK ASSEMBLIES

 

 

 

 

38”/42” Mower Decks

 

 

 

 

Leveling the Mower from Side-to-Side . . . . . . . . . . . . . . . . . . . . . . . . .

6-2

Adjusting the Front-to-Rear Blade Slope . . . . . . . . . . . . . . . . . . .

. .

. . . 6-3

Inspecting the Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-4

Replacing the Mower Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-4

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

6-6

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

6-7

ii

TimeCutter Z / Precision Z Service Manual

TABLE OF CONTENTS

MOWER DECKS - 38”/42”, 44” AND 48” DECK ASSEMBLIES cont.

 

 

44” Mower Decks

 

 

Leveling the Mower from Side-to-Side . . . . . . . . . . . . . . . . . . . . . .

. . .

6-8

Adjusting the Front-to-Rear Blade Slope . . . . . . . . . . . . . . . . . . . . .

. . . 6-8

Inspecting the Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-10

Replacing the Mower Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-10

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

. . .

6-11

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

. . .

6-12

48” Mower Decks

 

 

Leveling the Mower from Side-to-Side . . . . . . . . . . . . . . . . . . . . . .

. . . A6-13

Adjusting the Front-to-Rear Blade Slope . . . . . . . . . . . . . . . . . . . . .

. . . A6-14

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

. . .

A6-16

Mower Belt Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A6-17

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

. . .

A6-18

TimeCutter Z / Precision Z Service Manual

iii

TABLE OF CONTENTS

THIS PAGE INTENTIONALLY LEFT BLANK.

iv

TimeCutter Z / Precision Z Service Manual

SAFETY INFORMATION

TIMECUTTER® Z / PRECISION® Z SERVICE MANUAL

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . 1

Specifi cations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Hydro-Gear Transaxle . . . . . . . . . . . . . . . . . . . . . . . . 4

Electrical Systems . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Mower Decks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

TimeCutter Z / Precision Z Service Manual

A1-1

SAFETY INFORMATION

General Information

This symbol means WARNING or PERSONAL SAFETY INSTRUCTION

1 - read the instruction because it has to do with your safety. Failure to comply with the instruction may result in personal injury or even death.

This manual is intended as a service and repair manual only. The safety instructions provided herein are for troubleshooting, service, and repair of the TimeCutter Z zero radius tractor and the Precision Z®. The TimeCutter® Z zero radius tractor and the

Precision Z® attachment operator’s manuals contain safety information and operating tips for safe operating practices. Operator’s manuals are available through your Toro parts source or:

The Toro Company

Publications Department

8111 Lyndale Avenue South

Bloomington, MN 55420

Think Safety First

Avoid unexpected starting of engine...

Always turn off the engine and disconnect the spark plug wire(s) before cleaning, adjusting, or repair.

Avoid lacerations and amputations...

Stay clear of all moving parts whenever the engine is running. Treat all normally moving parts as if they were moving whenever the engine is running or has the potential to start.

Avoid burns...

Do not touch the engine, muffler, or other components which may increase in temperature during operation, while the unit is running or shortly after it has been running.

Avoid fires and explosions...

Avoid spilling fuel and never smoke while working with any type of fuel or lubricant. Wipe up any spilled fuel or oil immediately. Never remove the fuel cap or add fuel when the engine is running. Always use approved, labeled containers for storing or transporting fuel and lubricants.

Avoid asphyxiation...

Never operate an engine in a confined area without proper ventilation.

Avoid injury from batteries...

Battery acid is poisonous and can cause burns. Avoid contact with skin, eyes, and clothing. Battery gases can explode. Keep cigarettes, sparks, and flames away from the battery.

Avoid injury due to inferior parts...

Use only original equipment parts to ensure that important safety criteria are met.

Avoid injury to bystanders...

Always clear the area of bystanders before starting or testing powered equipment.

Avoid injury due to projectiles...

Always clear the area of sticks, rocks, or any other debris that could be picked up and thrown by the powered equipment.

Avoid modifications...

Never alter or modify any part unless it is a factory approved procedure.

Avoid unsafe operation...

Always test the safety interlock system after making adjustments or repairs on the machine. Refer to the Electrical section in this manual for more information.

A1-2

TimeCutter Z / Precision Z Service Manual

SPECIFICATIONS

TIMECUTTER® Z / PRECISION® Z SERVICE MANUAL

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Specifi cations . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Hydro-Gear Transaxle . . . . . . . . . . . . . . . . . . . . . . . . 4

Electrical Systems . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Mower Decks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

TimeCutter Z / Precision Z Service Manual

A2-1

SPECIFICATIONS

General Specifi cations - Toro TimeCutter® Z

 

Item

Specification

 

 

 

 

Engines

All units were manufactured with Briggs & Stratton engines ranging from 14 to 17

 

 

horsepower. For information on servicing the engine, contact Briggs & Stratton

 

 

Corporation.

 

RPM setting,

High RPM Setting (no load) 3300 + 100 RPM

 

all models

 

2

 

Construction

Frame: 10 gauge steel

 

 

 

 

Fuel Capacity

2 gallons (7.5 liters) Diesel Fuel

 

 

 

 

Wheel Base

47.6” (120.9cm) center of front to center of drive tires

 

 

 

 

Overall Length

72.6” (184.4cm)

 

 

 

Overall Width

Model

Width

 

 

 

 

14-38Z & Z380

45.4” (115.3cm) with deck defl ector down, 42.4” (107.7cm) Gate

 

 

width with defl ector up.

 

16-42Z, 17-42Z &

50.7” (128cm) with deck defl ector down, 45.0” (116.8cm) Gate

 

Z420

width with defl ector up.

 

18-44Z

60” (152.4cm) with deck defl ector down, 46.6” (118.4cm) Gate

 

 

width with deck defl ector up.

 

Z480

62.5” (158.8cm) with deck defl ector down, 53.5” (135.9cm) Gate

 

 

width with deck defl ector up.

Weight

Model

Net Weight

 

Model

Net Weight

 

 

 

 

 

 

 

14-38Z & Z380

505 lbs. (229kg) est.

 

18-44Z

535 lbs. (243kg) est.

 

 

 

 

 

 

 

16-42Z & Z420

516 lbs. (234kg) est.

 

Z480

550 lbs. (249kg) est.

 

 

 

 

 

 

 

17-42Z

516 lbs. (234kg) est.

 

 

 

 

 

 

 

 

 

 

 

 

 

Traction System

Transaxles: Twin Hydro-Gear EZT

 

 

 

Transaxle Drive: Belt Drive with self-tensioning system.

 

Ground Speed

Forward: Infi nite 0 – 6.0 mph (9.6km/hr)

 

 

 

Reverse: Infi nite 0 – 3 mph (5km/hr)

 

 

Tires

Front Tires all models - 410/350 x 4-4.25

 

 

 

Rear Tires 18 x 6.5 - 8, 14-38Z/Z380

 

 

 

Rear Tires 18 x 7.5 - 8, 16-42Z/Z420

 

 

 

Rear Tires 18 x 8.5 - 8, 17-42Z/18-44Z/Z480

 

 

Tire Pressure

Front Tires 35 psi (241kPa)

 

 

 

Rear Tires 13 psi (90kPa)

 

 

Attachment Drive

Electric Clutch, Maintenance Free, No Adjustments

 

A2-2

TimeCutter Z / Precision Z Service Manual

SPECIFICATIONS

Item

Specification

 

 

Mower Decks

38” (97cm) cut, right side discharge, two blade mid-mount rotary. Drawn 13 gauge steel

 

 

deck with welded mounting brackets. Frame supported

 

 

42” (107cm) right side discharge, two blade mid-mount rotary. Drawn 13 gauge steel

 

 

deck with welded mounting brackets. Frame supported.

 

 

2

 

44” (112cm) cut, right side discharge, three blade mid-mount rotary. Drawn 13 gauge

 

steel deck with welded mounting brackets. Frame supported.

 

 

48” (121.8cm) cut, right side discharge, three blade mid-mount rotary. Drawn 13 gauge

 

 

steel deck with welded mounting brackets. Frame supported.

 

 

 

 

 

Blade Tip Speed

Model

Speed

 

 

14-38Z & Z380

16,760 ft/min @ 3300 RPM nominal, 17,270 ft/min @ 3400 RPM

 

 

 

max.

 

 

16-42Z & 17-42Z &

17,290 ft/min @ 3300 RPM nominal, 17,810 ft/min @ 3400 RPM

 

 

Z420

max.

 

 

18-44Z

17,310 ft/min @ 2700 RPM

 

 

Z480

15,230 ft/min @3300 RPM nominal, 15,710 ft/min @ 3400 RPM

 

 

 

max.

 

 

14-38Z (Int’l model)

13,710 ft/min @ 2700 RPM

 

 

16-42Z (Int’l model)

14,140 ft/min @ 2700 RPM

 

 

 

 

Height-of-Cut

All models except Z480 - Seven height-of-cut positions from 1.5” (38mm) to 4.5

 

 

(114mm), 1/2” (12.7mm) increments.

 

 

Z480 - Seven height-of-cut positions from 1.0” (25.4mm) to 4.0 (101.6mm), 1/2”

 

 

(12.7mm) increments.

 

Electrical System

Battery Voltage: 12 volt negative ground

 

 

Battery Type: BCI Group U1

 

TimeCutter Z / Precision Z Service Manual

A2-3

SPECIFICATIONS

General Specifi cations - Lawn-Boy Precision Z

 

Item

Specification

 

 

 

 

Engines

Units were manufactured with Briggs & Stratton and Honda engines ranging from

 

 

390cc to 530cc displacement. For information on servicing the engines, contact Briggs

 

 

& Stratton Corporation or Honda.

 

RPM setting,

High RPM Setting (no load) 3300 ± 100 RPM

 

all models

 

2

 

Construction

Frame: 10 gauge steel

 

 

 

 

Fuel Capacity

1.8 gallons (6.8 liters)

 

 

 

 

Wheel Base

47.6” (120.9cm) center of front tire to center of drive tires

 

 

 

 

Overall Length

72.6” (184.4cm)

 

 

 

Overall Width

Model

Width

 

 

 

 

Z320H & Z310

45.4” (115.3cm) with deck defl ector down, 42.4” (107.7cm) Gate

 

 

width with deck defl ector up.

 

Z330LX &

50.7” (128.8cm) with deck defl ector down, 46.0” (116.8cm) Gate

 

Z340HLX

width with deck defl ector up.

 

Z350HLX

60” (152.4cm) with deck defl ector down, 46.6” (118.4cm) Gate

 

 

width with deck defl ector up.

Weight

Model

Net Weight

Model

Net Weight

 

 

 

 

 

 

Z320H

502 lbs. (228 kg) est.

Z340HLX

523 lbs. (237 kg) est.

 

 

 

 

 

 

Z310

502 lbs. (228 kg) est.

Z350HLX

560 lbs. (254 kg) est.

 

 

 

 

 

 

Z330LX

514 lbs. (233 kg) est.

 

 

 

 

 

 

 

 

 

Traction System

Transaxles: Twin Hydro-Gear EZT Transaxle drive. Belt Drive with self-tensioning

 

system.

 

 

 

Ground Speed

Forward: 0 – 6.0 mph (9.7km/hr)

 

 

 

Reverse: 0 – 3.0 mph (5.0km/hr)

 

 

Tires

Front Tires all Models – 410/350 x 4 with “sawtooth” tread

 

 

Rear Tires 18x6.5-8 – Z320H – Z310

 

 

 

Rear Tires 18x8.5-8 – Z330LX

 

 

 

Rear Tires 18x7.5-8 – Z340HLX

 

 

 

Rear Tires 18x8.5-8 – Z350HLX

 

 

Tire Pressure

Front Tires 35 psi (241kPa)

 

 

 

Rear Tires 13 psi (90kPa)

 

 

Attachment Drive

Electric Clutch, Maintenance Free, No Adjustments

 

A2-4

TimeCutter Z / Precision Z Service Manual

SPECIFICATIONS

Item

Specification

 

 

Mower Decks

38” (97cm) cut, right side discharge, two blade mid-mount rotary. Drawn 13 gauge steel

 

 

deck with welded mounting brackets. Frame supported.

 

 

42” (107cm) cut, right side discharge, two blade mid-mount rotary. Drawn 13 gauge

 

 

steel deck with welded mounting brackets. Frame supported.

 

 

2

 

44” (112cm) cut, right side discharge, two blade mid-mount rotary. Drawn 13 gauge

 

steel deck with welded mounting brackets. Frame supported.

 

 

 

 

 

Blade Tip Speed

Model

Speed

 

 

Z320H/Z310

16,760 ft/min @3300 RPM nominal, 17,270 ft/min @ 3400 RPM

 

 

 

max.

 

 

Z330LX/Z340HLX

17,290 ft/min @ 3300 RPM nominal, 17,810 ft/min @ 3400 RPM

 

 

 

max.

 

 

Z350HLX

16,740 ft/min @ 3300 RPM nominal, 17,310 ft/min @ 3400 RPM

 

 

 

max.

 

 

 

 

Height-of-Cut

Seven height-of-cut positions from 1.5” (38mm) to 4.5” (114mm), 1/2” (12.7mm)

 

 

increments.

 

 

Electrical System

Battery Voltage: 12 volt negative ground

 

 

Battery Type: BCI Group U1

 

TimeCutter Z / Precision Z Service Manual

A2-5

SPECIFICATIONS

Hydrostatic Transaxles

Identification:

Hydro-Gear EZT Hydrostatic Transaxles

2

MVC-204X

Transaxle Specifications

Lubrication

SAE 20W-50 API Classifi cation SH/CD

Oil Capacity

1.6 to 1.7 qt. (1.5 to 1.6 liters)

Oil Level

The transaxle is a sealed system and does not require periodic checking. Check oil at the oil

 

fi ll plug location only. Do not check the oil at the vent tube. Checking oil at the vent tube will

 

only give you a false reading or no reading at all, since this is the oil expansion area. If the oil

 

needs to be checked, the transaxle must be removed to check oil level and IT CAN BE ONLY

 

CHECKED COLD. There is a fi ll plug located at the top of the transaxle. To check the level of

 

the oil, remove the fi ll plug. Oil level should be 3/4” (1.9cm) from the top of the oil fi ll plug.

Fluid Change

The transaxle is factory fi lled and does not require regular oil changes.

A2-6

TimeCutter Z / Precision Z Service Manual

SPECIFICATIONS

Hydrostatic Transaxles cont.

Note: If you are replacing the transaxle, after you have installed the hydro rods, remove the nut and washer located on the cam plate. Also, check the oil prior to installation.

2

MVC-205X

MVC-206X

TimeCutter Z / Precision Z Service Manual

A2-7

SPECIFICATIONS

Torque Specifications

Fastener Identification

Recommended fastener torque values are listed in the following tables. For critical applications, as determined by Toro, either the recommended torque or a torque that is unique to the application is clearly identified and specified in the service manual.

2These torque specifications for the installation and tightening of fasteners shall apply to all fasteners which do not have a specific requirement identified in the service manual. The following factors shall be considered when applying torque: cleanliness of the fastener, use of a thread sealant (Loctite), degree of lubrication on the fastener, presence of a prevailing torque feature, hardness of the surface underneath of the fastener’s head, or similar condition which affects the installation.

As noted in the following tables, torque values should be reduced by 25% for lubricated fasteners to achieve the similar stress as a dry fastener. Torque values may also have to be reduced when the fastener is threaded into aluminum or brass. The specific torque value should be determined based on the aluminum or brass material strength, fastener size, length of thread engagement, etc.

The standard method of verifying torque shall be performed by marking a line on the fastener (head or nut) and mating part, then back off fastener 1/4 of a turn. Measure the torque required to tighten the fastener until the lines match up.

 

Figure 1A

 

Inch Series Bolts and Screws

 

 

 

(A) Grade 1

 

(C) Grade 8

(B) Grade 5

 

 

 

 

 

 

 

 

 

 

 

Figure B2

Metric Bolts and Screws

(A) Class 8.8

(B) Class 10.9

 

 

A2-8

TimeCutter Z / Precision Z Service Manual

SPECIFICATIONS

Standard Torque for Dry, Zinc Plated, and Steel Fasteners (Inch Series)

 

Grade 1, 5, &

SAE Grade 1 Bolts, Screws,

SAE Grade 5 Bolts, Screws,

SAE Grade 8 Bolts, Screws,

 

 

Thread Size

8 with Thin

Studs, & Sems with Regular

Studs, & Sems with Regular

Studs, & Sems with Regular

 

 

Height Nuts

Height Nuts (SAE J995

Height Nuts (SAE J995

Height Nuts (SAE J995

 

 

 

 

 

 

 

 

Grade 2 or Stronger Nuts)

Grade 2 or Stronger Nuts)

Grade 2 or Stronger Nuts)

 

 

 

In-lb

 

In-lb

 

N-cm

 

In-lb

 

N-cm

 

In-lb

 

N-cm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

# 6 - 32 UNC

10

± 2

13

± 2

147

± 23

15

± 2

170

± 20

23

± 2

260

±

20

 

 

# 6 - 40 UNF

17

± 2

190

± 20

25

± 2

280

±

20

 

2

 

 

 

 

 

 

 

# 8 - 32 UNC

13

± 2

25

± 5

282

± 30

29

± 3

330

± 30

41

± 4

460

±

45

 

 

# 8 - 36 UNF

31

± 3

350

± 30

43

± 4

31 ± 3

 

 

 

 

 

 

 

 

 

 

# 10 - 24 UNC

18

± 2

30

± 5

339

± 56

42

± 4

475

± 45

60

± 6

674

± 70

 

 

#10 - 32 UNF

48

± 4

540

± 45

68

± 6

765

± 70

 

 

 

 

 

 

 

 

 

 

1/4 - 20 UNC

48

± 7

53

± 7

599

± 79

100

± 10

1125 ± 100

140

± 15

1580

± 170

 

 

1/4 - 28 UNF

53

± 7

65 ± 10

734 ± 113

115 ± 10

1300

± 100

160

± 15

1800

± 170

 

 

5/16 - 18 UNC

115 ± 15

105

± 17

1186 ± 169

200

± 25

2250

± 280

300

± 30

3390

± 340

 

 

5/16 - 24 UNF

138

± 17

128

± 17

1446

± 192

225

± 25

2540

± 280

325

± 30

3670

± 340

 

 

 

ft-lb

ft-lb

N-m

ft-lb

N-m

ft-lb

N-m

 

 

3/8 - 16 UNC

16

± 2

16

± 2

22

± 3

30

± 3

41

± 4

43

± 4

58

± 5

 

 

3/8 - 24 UNF

17

± 2

18

± 2

24

± 3

35

± 3

47

± 4

50

± 4

68

± 5

 

 

7/16 - 14 UNC

27

± 3

27

± 3

37

± 4

50

± 5

68

± 7

70

± 7

68

± 9

 

 

7/16 - 20 UNF

29

± 3

29

± 3

39

± 4

55

± 5

75

± 7

77

± 7

104 ± 9

 

 

1/2 - 13 UNC

30

± 3

48

± 7

65

± 9

75

± 8

102 ± 11

105

± 10

142

± 14

 

 

1/2 - 20 UNF

32

± 3

53

± 7

72

± 9

85

± 8

115

± 11

120

± 10

163

± 14

 

 

5/8 - 11 UNC

65 ± 10

88 ± 12

119 ± 16

150

± 15

203

± 20

210

± 20

285

± 27

 

 

5/8 - 18 UNF

75 ± 10

95 ± 15

129

± 20

170

± 15

230

± 20

240

± 20

325

± 27

 

 

3/4 - 10 UNC

93 ± 12

140

± 20

190

± 27

265

± 25

359

± 34

374

± 35

508

± 47

 

 

3/4 - 16 UNF

115 ± 15

165

± 25

224

± 34

300

± 25

407

± 34

420

± 35

569

± 47

 

 

7/8 - 9 UNC

140

± 20

225

± 25

305

± 34

430

± 45

583

± 61

600

± 60

813

± 81

 

 

7/8 - 14 UNF

155

± 25

260

± 30

353

± 41

475

± 45

644

± 61

660

± 60

895

± 81

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: Reduce torque values listed in the table above by 25% for lubricated fasteners. Lubricated fasteners are defined as threads coated with a lubricant such as oil, graphite, or thread sealant such as Loctite.

Note: Torque values may have to be reduced when installing fasteners into threaded aluminum or brass. The specific torque value should be determined based on the fastener size, the aluminum or base material strength, length of thread engagement, etc.

Note: The nominal torque values listed above for Grade 5 and 8 fasteners are based on 75% of the minimum proof load specified in SAE J429. The tolerance is approximately ± 10% of the nominal torque value. Thin height nuts include jam nuts.

TimeCutter Z / Precision Z Service Manual

A2-9

SPECIFICATIONS

Standard Torque for Dry, Zinc, and Steel Fasteners (Metric Fasteners)

 

 

Thread Size

Class 8.8 Bolts, Screws, and Studs with

Class 10.9 Bolts, Screws, and Studs with

 

 

 

Regular Height Nuts

 

Regular Height Nuts (

 

 

 

 

(Class 8 or Strong Nuts)

 

Class 10 or Strong Nuts)

 

 

M5 X 0.8

57 ± 5 in-lb

640

± 60 N-cm

78 ± 7 in-lb

885 ± 80 N-cm

 

 

M6 X 1.0

96 ± 9 in-lb

1018

± 100 N-cm

133 ± 13 in-lb

1500 ± 150 N-cm

 

 

M8 X 1.25

19

± 2 ft-lb

26

± 3 N-m

27

± 2 ft-lb

36

± 3 N-m

2

 

M10 X 1.5

38

± 4 ft-lb

52

± 5 N-m

53

± 5 ft-lb

72

± 7 N-m

 

M12 X 1.75

66

± 7 ft-lb

90

± 10 N-m

92

± 9 ft-lb

125

± 12 N-m

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M16 X 2.0

166

± 15 ft-lb

225

± 20 N-m

229

± 22 ft-lb

310

± 30 N-m

 

 

M20 X 2.5

325

± 33 ft-lb

440

± 45 N-m

450

± 37 ft-lb

610

± 50 N-m

 

 

 

 

 

 

 

 

 

 

 

 

Note: Reduce torque values listed in the table above by 25% for lubricated fasteners. Lubricated fasteners are defined as threads coated with a lubricant such as oil, graphite, or thread sealant such as Loctite.

Note: Torque values may have to be reduced when installing fasteners into threaded aluminum or brass. The specific torque value should be determined based on the fastener size, the aluminum or base material strength, length of thread engagement, etc.

Note: The nominal torque values listed above are based on 75% of the minimum proof load specified in SAE J1199. The tolerance is approximately ± 10% of the nominal torque value. Thin height nuts include jam nuts.

A2-10

TimeCutter Z / Precision Z Service Manual

CHASSIS

TIMECUTTER Z SERVICE MANUAL

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Chassis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Hydro-Gear Transaxle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Electrical Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Mower Decks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

TimeCutter Z Service Manual

3 - 1

Toro 74301, 74325, 74327, 74330, 74350 Service Manual

CHASSIS

Model and Serial Number Location

The unit model and serial number plate is located on the frame under the seat as shown in the illustration (Figure 3).

3

Figure 3

mvc-049

Engine Model and Serial Number

Identification

Consult the appropriate engine manufacturer’s service literature for the location and translation of the engine model and serial number information (Figure 4).

Transaxle Model and Serial Number

Greasing and Lubrication

The unit should be greased every 25 hours or more often when operated in dusty, dirty or sandy conditions.

Grease Type: No. 2 general purpose lithium base grease.

There are four grease fittings located in the front wheel area:

1.One grease fitting is located in each of the cast iron pivot castor supports (Figure 5).

 

 

Figure 5

mvc-050

2.One grease fitting is located on each front wheel hub on the front tire (Figure 6).

Figure 4

Figure 6

mvc-051

 

3 - 2

TimeCutter Z Service Manual

CHASSIS

Front Castor Fork Removal and

Installation

Removal

1.Park the machine on a level surface, disengage the blade control (PTO), and turn the ignition key to OFF to stop the engine. Remove the ignition key.

2.Raise the front of the unit high enough so you have enough room to lower the castor forks from the pivot castor supports (Figure 7).

 

 

Figure 7

mvc-053

3.Remove the plastic dust cover, e-ring, and washer. Slide the castor fork down out of the pivot castor support (Figure 8).

Installation

Follow the removal procedure in reverse.

Castor Support Removal

1.Raise the front end of the unit (Figure 9).

3

Figure 9

mvc-053

2.Remove the locknut, nut, and washer from the mower deck hanger rod (Figure 9).

3.Remove the (4) nuts, bolts, and washers holding the castor support to the frame and remove the castor support (Figure 10).

Figure 10

mvc-070

Figure 8

mvc-070

TimeCutter Z Service Manual

3 - 3

CHASSIS

Installation

Reverse the order of removal. The mower deck, front- to-rear blade scope, needs to be adjusted, Refer to “Adjusting the Front-to-Rear Blade Slope” on page 6 - 3.

Side Panel Removal

Left Side Panel Removal

1.Remove the three fasteners holding the rear portion of the left side panel. Two fasteners are located in the middle, under the side panel

connecting the panel to the rear support bracket. 3 The third fastener is located at the rear of the

panel (Figure 11).

 

 

Figure 11

mvc-059

2.Remove the two carriage bolts and nuts fastening the front bracket support to the frame and remove the bracket (Figure 12).

 

 

Figure 12

mvc-060

3.Remove the left side panel off of the frame (Figure 13).

 

 

Figure 13

mvc-062

Installation

Follow the removal procedure in reverse.

3 - 4

TimeCutter Z Service Manual

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