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Honda UMS425U User Manual

Honda UMS425U
42 pages
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Honda UMS425U Specifications

General IconGeneral
Engine Displacement25 cc
Cutting HeadTap & Go nylon head
Handle TypeLoop handle
Shaft TypeStraight
Dry Weight5.9 kg
Displacement25 cc
Cutting Width420 mm
EngineGX25
Engine Type4-stroke

Summary

Introduction

Safety Instructions

Operator Responsibility

Outlines user duties for safe operation and handling.

Child Safety

Precautions for keeping children safe around the trimmer.

Thrown Object Hazard

Explains danger of objects thrown by cutting attachment.

Fire and Burn Hazard

Details hazards related to gasoline and fires.

Carbon Monoxide Poisoning Hazard

Explains risks of carbon monoxide from exhaust gases.

Safety Label Locations

Component Identification

Controls

Engine switch

Describes function for starting and stopping.

Choke lever

Explains choke's effect on fuel mixture for starting.

Starter Grip

Details operation of the starter grip to crank engine.

Throttle trigger

Explains throttle trigger's control of engine speed.

Pre-Operation Checks

Check the engine oil level

Instructions for checking and maintaining engine oil level.

Check the fuel level

Details how to check and fill fuel tank with correct gasoline.

Check the air cleaner element

Steps for inspecting and cleaning air cleaner element.

Check the throttle cable free play

How to check and adjust throttle cable free play.

Inspect the cutting attachment

Instructions for inspecting nylon-line cutting head for damage.

Inspect the debris shield

How to inspect and ensure debris shield is correctly installed.

Starting the Engine

Trimming Operation

Stopping the Engine

Maintenance

Engine oil change

Step-by-step guide for changing engine oil.

Air cleaner service

Procedure for cleaning and servicing air cleaner element.

Cutting attachment replacement

How to replace nylon-line cutting head safely.

Spark plug service

Instructions for inspecting, cleaning, and replacing spark plug.

Throttle cable check and adjustment

How to check and adjust throttle cable free play.

Engine cooling fin inspection

How to visually inspect engine cooling fins for blockages.

Fuel tank strainer service

Steps for cleaning or replacing fuel tank strainer.

Fuel tank cleaning

Procedure for cleaning fuel tank to prevent performance issues.

Storage

Troubleshooting

Specifications

Vibrations

Details vibration levels for grass trimmer operation.

Sound pressure levels

Provides sound pressure level measurements for unit.

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