Toro 74170 User Manual

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Operator’s Manual

Form No. 3323–290

Compact

Series

Z147 with 44 SFS Side Discharge Mower

Model No. 74170–200000001 & Up

Table of Contents

Other manuals for Toro 74170

Service Manual113 pages

Questions and Answers:

W
william05Aug 15, 2025
How to fix uneven cutting height on my Toro 74170 Riding mower?
- B
  Bailey HarrisonAug 16, 2025
  If the cutting height of your Toro Riding mower is uneven, consider these solutions: 1. The blades may not be sharp, so sharpen them. 2. A cutting blade might be bent, so install new cutting blades. 3. The mower might not be level, so level it from side-to-side and front-to-rear. 4. The gage wheel might not be set correctly, so adjust its height. 5. The underside of the mower might be dirty, so clean it. 6. The tire pressure might be incorrect, so adjust it. 7. If none of these steps work, the blade spindle might be bent, so contact an Authorized Service Dealer.
R
Robert JordanAug 19, 2025
What to do if my Toro Riding mower starter does not crank?
- S
  Steven PhillipsAug 20, 2025
  If your Toro Riding mower's starter isn't cranking, it could be due to several reasons: 1. The blade control (PTO) might be ENGAGED, so move it to the DISENGAGED position. 2. The parking brake might not be on, so set it. 3. You might not be seated, so sit on the seat. 4. The battery could be dead, so charge it. 5. Electrical connections might be corroded or loose, so check them for good contact. 6. A fuse might be blown, so replace it. 7. If none of these resolve the issue, the relay or switch might be defective, so contact an Authorized Service Dealer.
R
Ryan WoodardAug 25, 2025
Why is my Toro 74170 Riding mower engine losing power?
- J
  Joshua MillerAug 25, 2025
  If your Toro Riding mower engine is losing power, consider the following: * The engine load may be excessive, so reduce ground speed. * The air cleaner could be dirty, so clean the air cleaner element. * The oil level in the crankcase might be low, so add oil. * Cooling fins and air passages under the engine blower housing may be plugged, so remove any obstructions. * Spark plugs may be pitted, fouled, or have an incorrect gap, so install new, correctly gapped spark plugs. * The vent in the fuel cap might be closed, so open it. * There could be dirt in the fuel filter, so replace it. * If problems persist, there might be dirt, water, or stale fuel in the fuel system, so contact an Authorized Service Dealer.
S
Savannah BlackwellAug 27, 2025
What causes my Toro 74170 engine to overheat?
- S
  Shane ZimmermanAug 27, 2025
  If your Toro Riding mower is overheating, check the following: 1. The engine load might be excessive, so reduce ground speed. 2. The oil level in the crankcase might be low, so add oil. 3. Cooling fins and air passages under the engine blower housing may be blocked, so remove any obstructions.
L
Lori OnealAug 31, 2025
What to do if the blades do not rotate on my Toro Riding mower?
- J
  Jennifer FordAug 31, 2025
  If your Toro Riding mower blades aren't rotating, it could be due to: 1. A worn, loose, or broken drive belt, so install a new one. 2. The drive belt being off the pulley, so install it and check the adjusting shafts and belt guides for the correct position. 3. A worn, loose, or broken deck belt, so install a new one.
T
Tyrone ConwaySep 3, 2025
Why is my Toro Riding mower vibrating abnormally?
- M
  Michael FaulknerSep 3, 2025
  If your Toro Riding mower is experiencing abnormal vibration, check these: 1. Engine mounting bolts might be loose, so tighten them. 2. The engine pulley, idler pulley, or blade pulley might be loose, so tighten the appropriate pulley. 3. If the engine pulley is damaged, contact an Authorized Service Dealer.
K
Kenneth RomanSep 7, 2025
What to do if my Toro 74170 does not drive?
- H
  hmooreSep 8, 2025
  If your Toro Riding mower doesn't drive, the possible causes are: 1. The traction belt might be worn, loose, or broken, so contact an Authorized Service Dealer. 2. The traction belt might be off the pulley, so contact an Authorized Service Dealer. 3. The hydro fluid level might be low, so add hydro fluid to the reservoir.

Toro 74170 Specifications

General

Transmission	Hydrostatic
Deck Type	Fabricated
Warranty	3-year limited
Cutting Width	50 inches
Fuel Capacity	3 gallons
Deck Material	Fabricated steel
Speed	7 mph
Turning Radius	18 inches

Summary

Safety Guidelines and Practices

Safe Operating Practices

Instructions from ANSI standard B71.4-1999 covering safe operation.

Training and Preparation for Operation

Operation and Maintenance Overview

General Operation Guidelines

Instructions for safe operation of the mower.

Maintenance and Storage Procedures

Steps for performing routine maintenance and storing the machine.

Specific Safety Information

Toro Mower Specific Safety

Safety hazards and information specific to Toro mowers.

Slope Operation Safety

Detailed safety instructions for operating on slopes.

Safety and Instruction Decals

Decals: Battery, Controls, and Systems

Identification and meaning of safety decals on battery, controls, and systems.

Fuel and Oil Handling

Gasoline Recommendations and Safety

Proper gasoline type and safe handling procedures to prevent hazards.

Hydraulic System Check

Checking Hydraulic Fluid Level

Mower Deck Adjustments

Greasing Bearings and Deck Leveling

Operation Controls and Safety

Control Panel Overview

Safety First During Operation

Emphasizing safety precautions before operating.

Engine Operation Procedures

Starting the Engine

Step-by-step procedure for starting the engine.

Stopping the Engine

Step-by-step procedure for stopping the engine.

PTO and Safety Interlock Systems

Power Take Off (PTO) Operation

Procedures for engaging and disengaging the PTO.

Safety Interlock System

Understanding and testing the safety interlock system.

Machine Movement Controls

Driving Forward, Backward, and Stopping

Cutting Height and Roller Adjustments

Adjusting Cutting Height

Mower Handling and Transport

Mowing Tips and Techniques

Maintenance Schedule and Blade Care

Service Interval Chart

A schedule outlining maintenance tasks and intervals.

Blade Maintenance

Blade Inspection and Replacement

Blade Inspection Procedures

Blade Sharpening and Replacement

Air Cleaner Service

Engine Oil and Spark Plug Service

Checking Engine Oil Level

Fuel System Maintenance

Engine and System Checks

Motion Control and Hydraulic Pump Adjustment

Troubleshooting Guide

Engine and Mechanical Issues

Troubleshooting for engine and mechanical problems.

Cutting and Performance Issues

Troubleshooting for cutting quality and performance problems.

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