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Form No. 3417-740 Rev A

Horizon Control Module

For Z Master Lawn Mowers

Model No. 74946—Serial No. 402000000 and Up

Model No. 74947—Serial No. 40200000 and Up

Model No. 74969—Serial No. 400000000 and Up

Software Guide

Read this information carefully to learn how to operate and maintain your product properly and to avoid injury
and product damage. You are responsible for operating the product properly and safely. Read your

Operator’s

Manual

for more information.

WARNING

CALIFORNIA

Proposition 65 Warning

This product contains a chemical or chemicals known to the State of California

to cause cancer, birth defects, or reproductive harm.

Screen Icons

The information screen uses the following icons:

Gauge and Meters

Low Engine Speed

Processing

Advanced Settings

Transmission Oil Maintenance

Battery Voltage

Maintenance and Service

Engine-Oil Temperature

Engine Hours

Fuel Level

Engine Oil Maintenance

Cancel/Exit

© 2017—The Toro® Company
8111 Lyndale Avenue South
Bloomington, MN 55420

Register at www.Toro.com.

Original Instructions (EN)

Printed in the USA

All Rights Reserved

*3417-740* A

 

Summary of Contents for 74946

Page 1: ...or more information WARNING CALIFORNIA Proposition 65 Warning This product contains a chemical or chemicals known to the State of California to cause cancer birth defects or reproductive harm Screen I...

Page 2: ...ter Return Neutral Lock Located in top row of Information Screen Decrease Previous OPC Operator Presence Control Increase Next Maximum Engine Speed Play Start Reset Efficient Engine Speed Pause Stop E...

Page 3: ...and Orange indicates that a clutch reset is required Buttons The multi functional buttons are located at the bottom of the panel The icons displayed on the information screen above the buttons indica...

Page 4: ...position i e PTO disengaged parking brake engaged motion control levers in the NEUTRAL LOCK position and the operator is present The PTO must be disengaged brake engaged and motion control levers out...

Page 5: ...anced Settings Menu page 10 g038651 Figure 6 1 Maintenance and Service 4 Cancel Exit 2 Gauges and Meters 5 Toggle between screens 3 Advanced Settings 6 Enter Return Maintenance and Service Menu You ca...

Page 6: ...if LDU and MCU are communicating Alarm highlights if On Starter highlights if On Current Error Messages This screen displays the current error as text with the engine hours at which the error occurred...

Page 7: ...14 1 Deck Gear Box Oil 2 Reminder display 3 Engine hours remaining until the service is due Machine Information The screen displays the serial number and model number of the machine g030190 Figure 15...

Page 8: ...ss the Reset button to confirm the reset press Y yes or N no to cancel Figure 20 g030203 Figure 20 1 Reset 3 Y yes 2 Are you sure 4 N no PTO Hours This screen displays a non resettable total PTO hour...

Page 9: ...Trip Statistics 1 is paused the statistics are highlighted and the reset button is available Pressing the reset button resets all 3 parameters Pressing the play button starts data collection g038364...

Page 10: ...ce 2 Reminder display 4 Reset Pressing the reset button brings up a screen asking to confirm the reset reminder Hydraulic Trans Oil After performing the necessary maintenance this screen allows you to...

Page 11: ...age 16VDC System Undervoltage 9VDC System Voltage Low Engine Settings This screen allows you to adjust the engine speed at the Maximum Efficient and Low set points for both transport clutch disengaged...

Page 12: ...ing the system returns the engine speed settings and alarm settings back to the factory default settings g030238 Figure 38 1 Factory Defaults 2 Reset When the exit screen appears press the enter butto...

Page 13: ...rrent The cutting clutch current is too high Clutch Reset Required The PTO switch must be turned off and to activate the PTO Engine Error Codes The system displays engine error codes provided by the e...

Page 14: ...aged before the error occurred the system allows the clutch to remain engaged however low voltage may cause the clutch to disengage itself 4 Low Oil Pressure If low engine oil pressure is detected the...

Page 15: ...ervoltage 16VDC Blink Red Disallow clutch engagement Disengage the clutch System voltage excessive above 16 V Check the battery and engine charging system Contact an Authorized Service Dealer System V...

Page 16: ...cal connections at the module interconnect between the engine wire harness and chassis harness Check the connections at the engine ECU Contact an Authorized Service Dealer Module Communication Error B...

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