Toro 21in Commercial Lawn Mower User Manual

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FormNo.3362-704RevA

21inCommercialLawnMower

ModelNo.22155TE—SerialNo.310000001andUp

ModelNo.22156TE—SerialNo.310000001andUp

ToregisteryourproductordownloadanOperator'sManualorPartsCatalogatnocharge,gotowww.Toro.com.OriginalInstructions(EN)

Table of Contents

Questions and Answers:

T
tiffanyryanAug 4, 2025
Why Toro 21in Commercial engine does not start?
- A
  averylauraAug 4, 2025
  Several factors can prevent your Toro Lawn Mower engine from starting. It might be due to an empty fuel tank or stale fuel in the system; in this case, refill with fresh gasoline. Another reason could be that the throttle lever isn't in the Choke position; move it accordingly. Also, ensure the wire is connected to the spark plug. Finally, inspect the spark plug itself—if it's pitted, fouled, or has an incorrect gap, adjust or replace it.
J
jwebbAug 8, 2025
Why Toro Lawn Mower engine starts hard or loses power?
- M
  Matthew WhiteheadAug 8, 2025
  If your Toro Lawn Mower engine is starting hard or losing power, consider these potential causes: stale fuel in the fuel tank (drain and refill with fresh gasoline); a plugged fuel cap vent hole (clean or replace the fuel cap); a dirty air filter restricting airflow (clean or replace the air filter); clippings and debris under the mower housing (clean the housing); a faulty spark plug (check, adjust, or replace the spark plug); or low/dirty engine oil (check and change or add oil as needed).
R
robertbellAug 13, 2025
What to do if Toro Lawn Mower engine runs rough?
- J
  Joseph JordanAug 13, 2025
  A rough-running Toro Lawn Mower engine can be caused by a few things. First, check that the wire is securely connected to the spark plug. Second, the spark plug itself might be pitted, fouled, or have an incorrect gap, requiring adjustment or replacement. Third, ensure the throttle lever is in the Fast position. Lastly, a dirty air filter restricting airflow can also cause this issue; clean or replace the air filter.
J
Jeffrey TaylorAug 17, 2025
Why Toro Lawn Mower does not self-propel?
- M
  Mary FoxAug 17, 2025
  If your Toro Lawn Mower isn't self-propelling, the self-propel drive cable may be out of adjustment or damaged; adjust or replace it as needed. Also, check for and remove any debris under the belt cover.
K
Kimberly SilvaAug 21, 2025
What to do if Toro Lawn Mower vibrates excessively?
- A
  anthony07Aug 21, 2025
  Excessive vibration in your Toro Lawn Mower can stem from several issues. The blade might be bent or unbalanced, requiring balancing or replacement. Loose blade mounting nuts or engine mounting bolts could also be the culprit; tighten them accordingly. Lastly, check for clippings and debris under the mower housing and clean it.
J
Joseph ParksAug 26, 2025
How to fix uneven cutting pattern of Toro 21in Commercial Lawn Mower?
- A
  adam74Aug 26, 2025
  An uneven cutting pattern with your Toro Lawn Mower can be due to several reasons: ensure all four wheels are at the same height. A dull blade can also cause this, so sharpen and balance the blade. Avoid mowing in the same pattern repeatedly, and clean any clippings and debris from under the mower housing.
K
Kimberly ValenzuelaAug 30, 2025
What to do if Toro 21in Commercial discharge chute plugs?
- D
  dmcclainAug 30, 2025
  If the discharge chute of your Toro Lawn Mower keeps plugging, make sure the throttle lever is in the Fast position. Also, the cutting height might be too low, so raise it. Avoid mowing too fast, and allow the grass to dry before mowing. Finally, clean any clippings and debris from the underside of the lawn mower deck.

Toro 21in Commercial Lawn Mower Specifications

General

Brand	Toro
Model	21in Commercial Lawn Mower
Category	Lawn Mower
Language	English

Summary

Safety Guidelines

General Mower Safety and Training

Covers essential safety practices, hazard warnings, and operator training requirements.

Gasoline Safety Precautions

Details safe handling, storage, and refueling procedures for gasoline.

Pre-Operation Checks and Starting Procedures

Outlines critical checks before use and step-by-step engine starting instructions.

Safe Operation and Stopping Guidelines

Provides guidance on mowing techniques, slope safety, and engine stopping.

Safety Decals and Symbols Guide

Safety Decals and Symbols Guide (Continued)

Setup and Initial Configuration

Installing the Mower Handle

Filling the Engine with Oil

Detailed instructions for correctly filling the engine with the specified type and amount of oil.

Installing Mulch Plug or Grass Bag

Procedure for installing the mulch plug or grass bag, essential for mower operation.

Operation Procedures

Checking Engine Oil Level Before Operation

Instructions for verifying the engine oil level as a pre-operation check.

Filling the Fuel Tank with Gasoline

Guidance on safely filling the fuel tank with fresh gasoline.

Starting the Lawn Mower Engine

Step-by-step instructions for safely starting the mower's engine.

Stopping the Lawn Mower Engine

Procedure for safely shutting down the mower's engine.

Operating the Self-Propel Drive

Adjusting the Cutting Height

Maintenance and Servicing

Recommended Maintenance Schedule

Outlines the regular maintenance tasks and their service intervals.

Pre-Maintenance Procedures

Servicing the Air Cleaner

Changing the Engine Oil

Step-by-step guide for draining and refilling the engine oil.

Servicing the Spark Plug

Adjusting the Self-Propel Drive

Maintaining the Cutting Blade

Storage and Removal from Storage

Preparing Fuel System for Storage

Preparing Engine for Storage

Troubleshooting Issues

Troubleshooting Engine Starting and Running Problems

Addresses common problems like engine not starting or running rough.

Troubleshooting Operational and Mechanical Issues

Warranty and Service Information

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