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Craftsman 917.378852 User Manual

Craftsman 917.378852
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Owner's Manual
CRAFTSMAN°
6.75 Horsepower
Power-Propelled
21" Rear Discharge
Model No.
917.378852
o EspaSol, p. 18
CAUTION'.
Read and follow all
Safety Rules and Instructions
before operating this equipment
Sears, Roebuck and Co., Hoffman Estates, IL 60179
Visit our Craftsman website: www.sears.com/craftsman
U.S.A.
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Craftsman 917.378852 Specifications

General IconGeneral
Model Number917.378852
CategoryLawn Mower
Cutting Width22 inches
Cutting Positions6
Grass Bag Capacity2.4 bushels
Mulching CapabilityYes
Side Discharge CapabilityYes
EngineBriggs & Stratton
Cutting Height1.25 - 3.75 inch

Summary

WARRANTY INFORMATION

Limited Two-Year Warranty

Explains the warranty duration and conditions for the mower.

Warranty Exclusions

Details items and conditions not covered by the warranty.

Warranty Service Information

Provides details on obtaining warranty service.

GENERAL SAFETY RULES

General Cutting Machine Hazards

Warns about severe injury from moving parts and thrown objects.

Prevent Accidental Starting Procedures

Instructions to disconnect spark plug wire before adjustments.

California Proposition 65 Warnings

Chemical warnings for California residents regarding engine exhaust and battery.

Hot Surface Burn Prevention

Caution about hot engine parts during and after operation.

GENERAL OPERATION GUIDELINES

Safe Mowing Practices

Covers operator actions, clearing area, footwear, and discharge.

Operational Safety and Equipment

Discusses operator responsibility, guards, and stopping the blade.

Environmental and Personal Safety

Addresses lighting, impairment, wet grass, and footing.

Starting and Vibration Checks

Covers self-propelled engagement and detecting abnormal vibration.

Eye Protection Requirement

Mandates wearing safety goggles or glasses.

SLOPE OPERATION SAFETY

Slope Mowing Precautions

General advice for mowing on inclines and avoiding hazards.

Safe Slope Mowing Techniques

Instructions for mowing direction and clearing obstacles on slopes.

Unsafe Slope Mowing Practices

Prohibitions on mowing near drop-offs, steep slopes, or wet grass.

CHILD SAFETY DURING OPERATION

Child Awareness and Prevention

Emphasizes keeping children away from mowing areas.

Actions When Children Enter Area

Procedures for stopping the mower if children approach.

SAFE GASOLINE HANDLING

Gasoline Handling Precautions

General safety rules for handling flammable gasoline.

Refueling and Storage Safety

Rules for adding fuel and storing gasoline safely.

GENERAL SERVICE AND MAINTENANCE

General Service Precautions

Covers operating environment, safety during service, and general upkeep.

Component Maintenance

Discusses belts, safety devices, cleaning, and labels.

Impact and Adjustment Safety

Advises on inspecting after impact and safe adjustments.

Blade and Grass Catcher Care

Specific advice for blades and grass catcher components.

PRODUCT SPECIFICATIONS

Mower Identification Details

Serial number and date of purchase.

Fuel and Oil Requirements

Details on gasoline capacity, oil type, and capacity.

Spark Plug and Torque Specs

Information on spark plug type and blade bolt torque.

REPAIR PROTECTION AGREEMENTS

Agreement Benefits and Coverage

Details of what the protection agreement covers.

Service and Support Information

Information on phone support and scheduling.

Sears Installation Services

Details on installation services offered by Sears.

AVAILABLE ACCESSORIES

Performance Enhancing Accessories

Lists accessories like clipping deflectors and grass catchers.

Maintenance and Replacement Parts

Lists parts like filters, spark plugs, and belts.

ASSEMBLY AND PRE-OPERATION

Initial Setup and Unpacking

General guidance before assembly and unpacking steps.

Handle Setup and Adjustment

Instructions for unfolding and adjusting the mower handle.

Grass Catcher Assembly

Procedure for assembling the grass catcher.

Installing Attachments

Information on how to attach accessories.

LAWN MOWER OPERATION

Familiarization with Mower Controls

Reading the manual and identifying mower parts.

Understanding Safety Symbols

Explanation of warning and operational symbols used on the mower.

Key Mower Controls Explained

Descriptions of operator presence bar, starter, drive lever, and primer.

HOW TO USE YOUR LAWN MOWER

Eye Protection and Engine Speed

Reiteration of safety glasses and engine speed information.

Drive Control Operation

How to use the self-propel feature.

Adjusting Cutting Height

Procedure for setting the mower deck height.

Converting Mower Functionality

Switching between mulching, bagging, or discharging.

Emptying the Grass Catcher

Steps for removing and emptying clippings.

BEFORE STARTING THE ENGINE

Adding Engine Oil

Instructions for checking and filling oil to the correct level.

Adding Gasoline

Instructions for fueling the mower with fresh, unleaded gasoline.

Stopping and Starting the Engine

Procedures for safely shutting off and starting the engine.

MOWING TIPS AND TECHNIQUES

Attachment and Tall Grass Mowing

Warnings against attachments and tips for tall grass.

Cutting Techniques for Heavy Grass

Strategies for cutting thick or overgrown grass.

Grass Catcher and Engine Cleaning

Advice on catcher maintenance and engine cleanliness.

MULCHING MOWING TIPS

Mulching Best Practices

Recommendations for optimal mulching performance.

Wet Grass and Cutting Height

Tips on avoiding wet grass and setting cutting height for mulching.

Cutting Pattern and Grass Conditions

Advice on second passes and varying cutting patterns.

MAINTENANCE SCHEDULE AND TASKS

Regular Maintenance Checks

Lists tasks like checking fasteners, cleaning, lubrication, and battery.

Engine Specific Maintenance

Specific tasks for the engine like oil and spark plug.

General Maintenance Recommendations

Advice on warranty, adjustments, and seasonal checks.

Pre-Use Maintenance Checks

Essential checks before each operation.

Lubrication Guide and Chart

Information on lubricating mower parts and a lubrication chart.

LAWN MOWER COMPONENT CARE

Tire and Drive Wheel Maintenance

Instructions for maintaining tires and drive wheels.

Blade Maintenance and Replacement

Procedures for blade care, removal, and installation.

Blade Sharpening and Balancing

Guidance on sharpening and balancing the mower blade.

Grass Catcher and Gear Case Care

Maintenance tips for grass catcher and gear case.

ENGINE MAINTENANCE AND SERVICE

Engine Lubrication and Oil Change

Details on oil type, checking, and changing engine oil.

Air Filter Service and Cleaning

Instructions for cleaning or replacing the air filter.

Muffler and Spark Plug Service

Maintenance for the muffler and spark plug.

CLEANING THE LAWN MOWER

General Cleaning Procedures

Instructions for cleaning housing, underside, and engine.

Water Cleaning Caution

Warning about using water for cleaning sensitive parts.

Cleaning the Drive Cover

Specific instructions for cleaning the drive cover.

SERVICE AND ADJUSTMENTS

Safety Precautions for Service

Essential safety steps before performing service or adjustments.

Adjusting Mower Components

Covers cutting height, rear deflector, and handles.

Drive Belt Removal and Replacement

Procedures for removing and replacing the drive belt.

ENGINE SPEED AND CARBURETOR

Engine Speed and Governor Settings

Information on engine speed and governor settings.

Carburetor Adjustability

Details on carburetor adjustments and governor tampering.

STORAGE PREPARATION AND HANDLING

Preparing Mower for Storage

General instructions for storing the lawn mower.

Folding the Handle for Storage

Method for folding the handle for storage or transport.

ENGINE STORAGE AND FUEL SYSTEM

Fuel System Preparation for Storage

How to prepare the fuel system for storage.

Engine Oil and Cylinder Storage

Procedures for oil and cylinder preparation for long-term storage.

General Storage Recommendations

Tips for storing the unit indoors and covering it.

TROUBLESHOOTING - STARTING ISSUES

Starting Problems: Fuel and Spark

Addresses dirty air filter, fuel issues, and spark plug connection.

Starting Problems: Controls and Battery

Covers control bar, fuel valve, and battery issues.

TROUBLESHOOTING - PERFORMANCE ISSUES

Loss of Power and Uneven Cut

Addresses issues like dragging, overcutting, and blade problems.

Vibration and Starter Rope Issues

Covers excessive vibration and starter rope problems.

Grass Catcher and Pushing Effort

Issues with grass catcher filling and difficulty pushing.

Drive System Performance

Problems with drive belt or cable.

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