GreenWorks GZM48S User Manual

47 pages

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Stand On Mower

2501802 (Model No. GZM48S)

Read all safety rules and instructions carefully before operating this tool.

Owner’s Manual

TOLL-FREE HELPLINE: 1-855-470-4267

www.GreenworksCommercial.com

Version 2 - 7.24.18

Questions and Answers:

D
Denise PerezAug 2, 2025
Why is my GreenWorks GZM48S Lawn Mower cutting unevenly?
- K
  Kimberly WalkerAug 2, 2025
  If your GreenWorks Lawn Mower has an uneven cutting height, several factors could be the cause. The blades might not be sharp, so try sharpening them. A cutting blade could be bent, in which case you should install new cutting blades. The underside of the deck might be dirty, so clean the underside of the deck. Also, check if the tires are improperly inflated and adjust the air pressure to ensure even pressure between the tires. Finally, an anti-scalp wheel might not be set correctly, so adjust its height.
M
Matthew PotterAug 17, 2025
What to do if my GreenWorks GZM48S Lawn Mower has abnormal vibration?
- K
  Kathleen SotoAug 17, 2025
  If your GreenWorks Lawn Mower has abnormal vibration, it could be due to several reasons. The cutting blade(s) might be bent or unbalanced, so you should install new cutting blade(s). Also, a blade mounting bolt might be loose, so try tightening the blade mounting bolt.

GreenWorks GZM48S Specifications

General

Power Source	Battery
Voltage	48V
Mulching Capability	Yes
Side Discharge	Yes
Rear Bagging	Yes
Number of Batteries Included	2
Deck Material	Steel
Battery Included	Yes
Cutting Width	21 inches
Drive System	Rear-wheel drive
Battery Type	Lithium-ion
Warranty	4 years

Summary

Product Specifications

Key Specifications

Provides essential technical details and dimensions of the mower.

General Information

Owner's Guide and Registration

Explains manual usage, serial number, parts, and warranty registration.

Warranty Registration Process

Details the steps for registering the mower to validate warranty coverage.

Safety Information

General Safety Rules

Outlines fundamental safety instructions and warnings for mower operation.

Operator and Machine Safety

Covers user PPE, attentiveness, machine condition, and mowing environment safety.

Operational and Hazard Safety

Details safe practices for servicing, charging, slopes, child safety, ramps, and towing.

Battery and Charger Safety

Explains critical safety precautions for handling and charging the mower's batteries.

Symbols and Signal Words

Understanding Symbols

Explains the meaning and purpose of various symbols used on the mower and manual.

Signal Word Definitions

Defines signal words like DANGER, WARNING, and CAUTION to indicate risk levels.

Know Your Zero Turn Mower

Mower Components Identification

Identifies key parts of the zero-turn mower with labels and descriptions.

Control Panel Functions

Describes the purpose and operation of buttons, switches, and the digital display.

Drive and Safety Controls

Explains how steering levers, drive controls, and safety interlock systems work.

Key Features

Details features like work lights, anti-scalp wheels, and the neutral bypass lever.

Operating Your Lawn Mower

Starting, Stopping, and Platform Use

Provides instructions for starting, stopping, and operating the mower's platform.

Driving, Steering, and Deck Control

Details controlling mower movement, steering, and engaging/disengaging the deck.

Cutting Height and Mowing Tips

Instructs on adjusting cutting height and offers advice for mowing performance.

Slope Operation and Safety Guide

Provides critical safety instructions and techniques for mowing on slopes.

Electrical System

System Safety and Components

Outlines safety precautions and lists the main components of the electrical system.

Battery and Charger Management

Covers battery connectors, charging ports, and general charger information.

Charging Procedures and Battery Handling

Details charging steps and instructions for battery disconnection/reconnection.

Digital Display and Fault Codes

Explains the digital display indicators and how to interpret fault codes.

Maintenance

Routine Maintenance Tasks

Describes daily checks, tire pressure, lubrication, and blade inspection.

Blade and Torque Specifications

Provides torque values for critical fasteners and blade maintenance guidance.

Cleaning, Storage, and Battery Care

Details cleaning, storage, and proper maintenance of the mower's lithium batteries.

Service Procedures

Outlines general procedures and safety precautions for servicing the mower.

Environmentally Safe Battery Disposal

Disposal Guidelines

Explains the correct and safe methods for disposing of lithium-ion batteries.

Troubleshooting

Common Issues and Solutions

Lists common problems, their causes, and recommended solutions.

Deck System Test Procedure

Provides a step-by-step procedure for testing the mower's deck system.

Limited Warranty

Warranty Coverage and Terms

Details what is covered under the residential and commercial warranties.

Warranty Exclusions and Limitations

Lists conditions that void the warranty and limits on remedies.

Owner Responsibilities and Registration

Outlines owner duties for maintenance and the process for warranty registration.

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