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Craftsman 917.378451 User Manual

Craftsman 917.378451
44 pages
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Owner's Manual
iCRRFTSMRN°i
ROTARY LAWN MOWER
6.5 Horsepower
Power-Propelled
21" Rear Discharge
Model No.
917.378451
CAUTION:
Read and follow all
Safety Rules and Instructions
before operating this equipment
Sears, Roebuck and Co., Hoffman Estates, IL 60179 US.A.
Visit ourCraftsman website:www.sears.com/craftsman
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Craftsman 917.378451 Specifications

General IconGeneral
Model Number917.378451
CategoryLawn Mower
TypeWalk-Behind
Engine TypeGasoline
Engine Displacement190cc
Cutting Width22 inches
Cutting Positions6
Speed SettingsVariable
Wheel Size (Front)8 inches
Oil Capacity20 oz
Cutting Height1.25 to 3.75 inches

Summary

Warranty Information

Limited Two-Year Warranty

Details the terms of the Craftsman power mower warranty.

Warranty Exclusions

Lists items and conditions not covered by the warranty.

Safety Rules and Precautions

General Safety Precautions

Highlights safety symbols and essential precautions for operation.

Specific Hazard Warnings

Warns about engine exhaust, battery chemicals, and hot components.

General Operation Guidelines

Operational Safety Rules

Covers safe practices like avoiding moving parts and using proper guards.

General Usage Guidelines

Advises on reading manual, operator responsibility, and mowing conditions.

Slope Operation Safety

Safe Slope Mowing Practices

Details mowing techniques and precautions for safe operation on slopes.

Children Safety

Preventing Accidents with Children

Emphasizes operator alertness and keeping children away from the mower.

Service and Fuel Guidelines

Fuel Handling and Storage

Provides instructions for safe handling and storage of gasoline and fuel.

Assembly and Pre-Operation Setup

Unpacking and Initial Inspection

Covers removing the mower from the carton and checking parts.

Setting Up the Handle

Details how to unfold and secure the mower handle.

Understanding Lawn Mower Operation

Mower Component Identification

Explains key parts like primer, starter, and controls.

Control Functions Explained

Details the operator presence control, drive control, and throttle.

Using Your Lawn Mower Controls

Engine Speed and Control

Explains throttle use and federal engine control requirements.

Drive Control Operation

Details how to engage and disengage self-propelling.

Adjusting Cutting Height

Describes how to change the mower's cutting height.

Pre-Start Engine Procedures

Adding Engine Oil

Instructions on checking and filling the engine oil.

Adding Gasoline

Guidance on filling the fuel tank with the correct gasoline.

Starting the Engine

Steps for starting a cold engine using the primer.

Mowing Techniques and Tips

Stopping the Engine

Instructions on how to safely stop the mower's engine.

General Mowing Advice

Tips for handling tall grass, heavy cutting, and grass catcher performance.

Mulching Best Practices

Guidance for effective mulching, including blade speed and cutting height.

Maintenance Schedule and Procedures

Maintenance Schedule Overview

Outlines regular service tasks and their frequency.

Pre-Use Maintenance Checks

Lists essential checks to perform before each use.

Lubrication Guide

Instructions and chart for lubricating mower components.

Product Specifications and Blade Care

Mower Specifications

Lists technical details like capacity, oil type, and torque.

Blade Removal and Replacement

Step-by-step instructions for removing and installing the blade.

Blade Sharpening and Balancing

Guidance on sharpening the blade and ensuring it's balanced.

Mower Components Maintenance

Grass Catcher and Drive Wheels

Maintenance for the grass catcher and cleaning drive wheels.

Engine Oil Change Procedure

Detailed steps for changing the engine oil.

Air Filter Service

Instructions for cleaning or replacing the air filter.

Cleaning and Minor Service

Air Filter, Muffler, and Spark Plug

Covers maintenance for these key engine components.

General Mower Cleaning

Instructions for cleaning mower housing, underside, and drive cover.

Drive Belt and Handle Adjustment

Drive Belt Service

Procedures for removing and replacing the drive belt.

Handle Adjustment Guide

Instructions for adjusting the handle to high or low positions.

Storage Preparation and Fuel System

Carburetor and Fuel System Storage

Guidance on preparing fuel system and carburetor for storage.

Mower and Handle Storage

Instructions for cleaning, lubricating, and folding mower for storage.

Troubleshooting Common Issues

Engine Cylinder Preparation for Storage

Steps to prepare the engine cylinder for long-term storage.

General Storage Guidelines

Advice on fuel, storage location, and covering the mower.

Troubleshooting Engine Start Failure

Lists common causes and corrections for starting issues.

Advanced Troubleshooting

Loss of Power and Poor Cut

Addresses issues like reduced power and uneven cutting.

Vibration, Starting, and Catcher Issues

Covers excessive vibration, starter problems, and catcher filling.

Propulsion and Drive Speed Problems

Solutions for difficulty pushing and drive speed issues.

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