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Craftsman 917.378521 User Manual

Craftsman 917.378521
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Owner's Manual
JCRRFTSMnN'I
ROTARY LAWN MOWER
5.5 Horsepower
Power-Propelled
21" Multi-Cut
Model No.
917.378521
CAUTION:
Read and follow all
Safety Rulesand Instructions
beforeoperatingthisequipment
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
Visit ourCraftsman website:www.sears.com/craltsman
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Craftsman 917.378521 Specifications

General IconGeneral
BrandCraftsman
Model917.378521
CategoryLawn Mower
Engine TypeGasoline
EngineBriggs & Stratton
Engine Power6.75 ft-lbs Gross Torque
Engine Displacement190cc
Cutting Height AdjustmentDual-lever
Cutting Positions6
Drive TypeSelf-propelled
Speed SettingsVariable
Oil Capacity20 oz
Cutting Width21 inches
Cutting Height1.25-3.75 inches
Fuel Tank Capacity1.6 quarts

Summary

Safety First: Essential Precautions and Model Overview

CAUTION: Read All Instructions

Read and follow all Safety Rules and Instructions before operating this equipment.

Warranty and General Safety Rules

LIMITED TWO YEAR WARRANTY ... IMPORTANT: This cutting machine is capable of amputating hands and feet...

Core Operation and Safety Procedures

General Operation Guidelines

Read, understand, and follow all instructions on the machine and in the manual(s)...

Slope and Child Safety

Slopes are a major factor related to slip and fall accidents... Tragic accidents can occur if the operator is not alert to the presence of children.

Fuel Handling and Service Safety

Use extra care in handling gasoline and other fuels.

Assembling and Understanding Your Lawnmower

Assembly and Handle Setup

Read these instructions and this manual in its entirety before you attempt to assemble or operate...

Identifying Controls and Symbols

Compare the illustrations with your lawn mower to familiarize yourself with the location of various controls...

Engine, Drive, and Height Adjustments

The engine is controlled by a throttle control... Self-propelling is controlled by holding the operator presence control bar... Raise wheels for low cut and lower wheels for high cut...

Mowing Modes and Pre-Operation Checks

Converting Mower Functions

Your lawn mower was shipped ready to be used as a mulcher. To convert to bagging or discharging...

Adding Oil and Gasoline

Your lawnmower is shipped without oil in the engine... Fill fuel tank to bottom of tank filler neck.

Starting, Stopping, and Mowing Tips

To start a cold engine, move handle mounted throttle/choke control lever to CHOKE position... MULCHING MOWING TIPS

Routine Maintenance and Component Specifications

Maintenance Schedule and Lubrication

MAINTENANCE SCHEDULE ... LUBRICATION CHART

Product Specifications and Blade Care

PRODUCT SPECIFICATIONS ... BLADE CARE

Engine Oil and Drive Wheel Maintenance

ENGINE LUBRICATION ... DRIVE WHEELS

Troubleshooting Common Mower Issues

Troubleshooting: Starting and Power Problems

TROUBLESHOOTING ... Does not start ... Loss of power

Troubleshooting: Cut Quality and Drive Problems

TROUBLESHOOTING ... Poor cut - uneven ... Loss of drive or slowing of drive speed

Gear Case Assembly Repair Parts

REPAIR PARTS ... GEAR CASE ASSEMBLY

Lawnmower Component Diagrams and Parts Lists

CRAFTSMAN ROTARY LAWN MOWER -- MODEL NUMBER 917.378521

Engine Component Diagrams and Parts Lists

HONDA 4-CYCLE ENGINE MODEL NUMBER GCV-160-A1AE

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