Husqvarna HV 703 - User Manual

HV703
EN Operator's manual 2-11
ES-MX Manual de usuario 12-22
FR-CA Manuel d’utilisation 23-33

Summary

Introduction

Product Description

Describes the engine as a 4-stroke combustion engine.

Intended Use

Specifies that the engine must only be used outdoors or in areas with sufficient airflow.

California Proposition 65 Warning

Warns about chemicals in the engine exhaust known to cause cancer and reproductive harm.

Engine Overview

Provides a labeled diagram identifying key engine components.

Serial Number Information

Serial Number Location

Provides information on locating and using the serial number for parts orders.

Symbols on the Product

General Product Warning Symbol

Highlights that the product is dangerous and requires careful and correct use.

Read Operators Manual Symbol

Instructs the user to read and understand the manual before operating the product.

Hot Surface Symbol

Indicates that the surface can become hot and requires caution.

Hearing Protection Symbol

Advises the user to use hearing protection when operating the engine.

Engine Oil Symbol

Indicates a reference to engine oil.

Risk of Fire Symbol

Warns about the risk of fire associated with the engine's operation.

Exhaust Fumes Warning

Warns about the danger of carbon monoxide in exhaust fumes.

Product Liability

Liability Conditions

Outlines conditions under which the manufacturer is not liable for damages.

Safety Definitions

Definition of WARNING

Defines WARNING as a risk of injury or death if instructions are not obeyed.

Definition of CAUTION

Defines CAUTION as a risk of damage to the product or surroundings.

Definition of NOTE

Defines NOTE as providing necessary additional information.

General Safety Instructions

General Safety Warning

Instructs users to read and understand warnings before operating the engine.

Engine Operational Safety

Emphasizes the danger of incorrect engine use and the need to read the manual.

Safety Instructions for Operation

Operation Safety Warning

Advises users to read operation safety warnings before proceeding.

Safe Operation Practices

Covers stopping the engine, avoiding hazardous areas, and proper starting procedures.

Safety Devices on the Product

Safety Device Warning

Emphasizes reading warnings related to safety devices before use.

Safety Device Maintenance and Use

Instructs to use, check, and not modify safety devices.

Muffler Function and Safety

Muffler Description

Explains the muffler's role in noise reduction and exhaust fume direction.

Muffler Safety Warning

Warns that a missing or defective muffler increases noise and fire risk.

Muffler Inspection Procedure

Fuel Safety

Fuel Safety Warning

Advises users to read fuel safety warnings before handling fuel.

Safe Fuel Handling Practices

Covers fuel flammability, ventilation, refueling, and spill precautions.

Safety Instructions for Maintenance

Maintenance Safety Warning

Instructs users to read maintenance safety warnings before performing work.

Maintenance Risk

Warns that improper maintenance increases injury and damage risk.

Operation

Pre-Operation Checks

Details essential checks like engine oil and daily maintenance before operation.

Operators Manual Reference

Emphasizes reading the product's operator manual for pre-start procedures.

Maintenance

Maintenance Safety Warning

Warns users to read the safety chapter before performing maintenance.

Maintenance Schedule Overview

Provides a schedule for engine maintenance tasks and their frequency.

Engine Maintenance Schedule

Routine Engine Maintenance

Details engine maintenance tasks like oil checks, filter replacement, and cleaning.

Engine Maintenance Schedule (Continued)

Spark Plug and Fuel Filter Maintenance

Covers examination, replacement of spark plugs, and fuel filter replacement.

Cooling Fins and Air Intake Cleaning

Details cleaning of cylinder cooling fins, air intake, and cooling fan.

Valve Clearance Adjustment

Describes the procedure for adjusting valve head clearance.

Checking Engine Oil Level

Oil Level Caution

Warns against operating with low or too high engine oil levels.

Recommended Engine Oil

Specifies detergent engine oil and recommends air-cooled oil with zinc additive.

Oil Viscosity Chart

Provides a chart showing recommended engine oil viscosity based on temperature.

Engine Oil Level Check Procedure

Step-by-step guide on how to check the engine oil level.

Replacing Engine Oil

Engine Oil Replacement Warning

Warns that engine oil is very hot after use and to use soap and water if spilled.

Engine Oil Replacement Procedure

Detailed steps for draining and replacing the engine oil.

Replacing the Oil Filter

Oil Filter Replacement Warning

Advises using protective gloves and cleaning skin if oil is spilled.

Oil Filter Replacement Procedure

Step-by-step instructions for removing and installing a new oil filter.

Cleaning or Replacing the Air Filter

Air Filter Safety Warnings

Warns against using compressed air and advises correct disposal of used filters.

Air Filter Cleaning and Replacement

Details cleaning foam elements and replacing paper elements.

Replacing the Fuel Filter

Fuel Filter Replacement Procedure

Step-by-step instructions for replacing the fuel filter using pliers.

Examining and Replacing the Spark Plug

Spark Plug Caution

Warns against starting the engine with the spark plug or cable removed.

Spark Plug Inspection and Replacement

Details examining spark plugs, measuring electrode gap, and replacement.

Spark Plug Tightening Caution

Warns that improperly tightened spark plugs can damage the engine.

Carburetor Adjustment for High Altitude Operation

Altitude Adjustment Caution

Warns against operating at lower altitudes with a high-altitude carburetor adjustment.

Emission Control System

Emission Control System Overview

Explains the system's purpose and the impact of modifications on emissions.

Emission Control System Repair

Lists conditions requiring examination and repair by an approved service dealer.

Troubleshooting

Engine Does Not Start - Fuel Valve

Troubleshoots the engine not starting when the fuel valve is set to OFF.

Engine Does Not Start - General

Covers troubleshooting for choke, ON/OFF switch, fuel, and spark plugs.

Engine Power Decrease

Troubleshoots reduced engine power due to air filter or fuel issues.

Unusual Noises from Engine

Addresses unusual noises during work loads and with bad gasoline.

Transportation, Storage, and Disposal

Transportation Guidelines

Provides instructions for safe transportation of the engine.

Preparing the Engine for Storage

Short-Term Storage Preparation

Outlines procedures for preparing the engine for storage periods less than 30 days.

Adding Fuel Stabilizer

Step-by-step guide on how to add fuel stabilizer to the fuel.

Long-Term Storage Preparation

Details procedures for preparing the engine for storage periods over 30 days.

Lubricating the Cylinder Bore

Provides instructions for lubricating the cylinder bore, with a caution for DIY.

Disposal Instructions

Guides on the proper disposal of chemicals and the engine itself.

Technical Data

Engine Specifications

Lists key technical specifications for the HV 703 engine models.

Husqvarna HV 703 Specifications

General

Engine manufacturer	Briggs & Stratton
Fuel system	Carburetor
Starter	Recoil
Lubrication	Splash
Engine type	4-stroke