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Craftsman 107.280340 User Manual

Craftsman 107.280340
100 pages
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Operator's Manual
®
Rear Engine Riding Mower with
Electric Start
Model No.
107.280340 (12.5HP Briggs & Stratton Engine with 28" Mower Deck)
For answers to your questions about this
product, call:
1-800-659-5917
Sears Craftsman Help Line
5 am - 5 pm, Mon- Sat
Sears, Roebuck and Co., Hoffman Estates, IL 60179
Visit our Craftsman website: www.sears.com/craftsman
U.S.A.
7103268
Revision A

Table of Contents

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Craftsman 107.280340 Specifications

General IconGeneral
Engine Displacement140cc
Cutting Width21 inches
Drive TypeSelf-Propelled
Engine Type4-Cycle
Fuel Tank Capacity0.5 gallons

Summary

Identification Numbers

Product Reference Data

Details about the product's model, stock number, and date of purchase.

Engine Reference Data

Details about the engine's maker, model, type, and serial number.

Warranty

Craftsman Full Warranty

Details the warranty coverage for parts, frame, axle, battery, and exclusions.

Emissions Control System Warranty Statement

California, United States and Canada Emissions Control Defects Warranty Statement

Explains the emissions control system warranty for small off-road engines.

Briggs & Stratton Emissions Control Defects Warranty Coverage

Outlines the coverage for emissions control parts defects.

Briggs & Stratton Emissions Control Defects Warranty Provisions

Specifies warranted parts, length of coverage, and exclusions.

Look For Relevant Emissions Durability Period and Air Index Information On Your Engine Emissions Label

Guides on finding emissions durability period and air index on engine labels.

Operator Safety

Important Safety Instructions

Key instructions for safe setup, operation, and maintenance.

Safety Symbols and Meanings

Explains hazard symbols and signal words for safety alerts.

Protection for Children

Protection against Tipovers

Information on operating safely on slopes to prevent tip-overs.

General Operating Safety

Safe Handling of Gasoline

Precautions for handling gasoline safely to avoid injury or damage.

Towing

Maintenance Safety

Safety guidelines for performing maintenance and repairs on the machine.

Suggested Guide for Sighting Slopes for Safe Operation

Features and Controls

Operation

Oil Recommendations

Guidance on selecting the correct oil viscosity based on temperature.

How to Check/Add Oil

Step-by-step instructions for checking and adding engine oil.

Fuel Recommendations

Requirements for fuel and precautions for high altitude operation.

High Altitude

Information on fuel and adjustments needed for high altitude operation.

How to Add Fuel

Before Starting

Pre-operation checks including tire pressure, guards, and oil level.

Starting Engine

When Starting Engine

Ensures components are in place and provides steps for starting the engine.

How to Set the Cutting Height

How to Operate the Mower Blade

Instructions for engaging and disengaging the mower blade.

How to Engage the Drive System

Steps for moving the machine forward using the drive system.

Reverse Lockout Mechanism

Reverse Lockout Override

How to Set the Parking Brake

Instructions for setting and releasing the parking brake.

Maintenance

Emissions Control

Information on emissions control maintenance and service.

Equipment Maintenance Chart

Schedule for regular maintenance tasks for the tractor and mower.

Engine Maintenance Chart

Schedule for regular maintenance tasks for the engine.

Check Safety Interlock System

Operational SAFETY Checks

Checks to ensure the mower's safety interlock systems function correctly.

Check Reverse Lockout Mechanism

Verifies the proper function of the reverse lockout mechanism.

Clean Debris Off Tractor, Mower Deck, and Engine Compartment

Instructions for removing debris to prevent fire hazards.

Check Tire Pressure

Check Mower Blade Stopping Time

Ensures the mower blade stops within the specified time.

Clean Battery and Cables

Steps for cleaning the battery terminals and cables.

Check Tractor Brakes

How to Change the Engine Oil

Procedure for safely draining and refilling engine oil.

How to Service the Air Filter

Instructions for cleaning or replacing the air filter.

Storage

Before Storage

Steps to prepare the unit for storage, including fluid checks.

Protect Fuel System

Guidance on using fuel stabilizer for long-term storage.

After Storage

Steps to take before starting the unit after a storage period.

Troubleshooting the Tractor

Engine will not turnover or start.

Diagnosing issues when the engine fails to turn over or start.

Engine starts hard or runs poorly.

Troubleshooting for engines that start with difficulty or run poorly.

Engine knocks.

Identifying and resolving engine knocking issues.

Excessive oil consumption.

Addressing problems related to high engine oil consumption.

Engine exhaust is black.

Diagnosing causes for black engine exhaust.

Engine runs, but tractor will not drive.

Troubleshooting when the engine runs but the tractor does not move.

Troubleshooting the Mower

Mower will not raise.

Diagnosing why the mower deck is not lifting.

Mower cut is uneven.

Troubleshooting uneven mower cutting results.

Mower cut is rough looking.

Addressing issues that cause a rough mower cut appearance.

Engine stalls easily with mower engaged.

Identifying reasons for engine stalling when the mower is engaged.

Excessive mower vibration.

Troubleshooting sources of excessive vibration from the mower.

Engine runs and tractor drives, but mower will not drive.

Diagnosing why the mower deck is not driven.

Specifications

Common Service Part

List of common service parts and their corresponding part numbers.

Engine Power Rating Information:

Details on how engine power ratings are determined and factors affecting actual power.

Repair Parts

Front End & Steering Group

Engine, Muffler & Drive Disc Group

Gear Shift Assembly

Electrical Components - For 12.5 HP Briggs

Electrical Systems - Magneto Shorting Block

Electrical Schematic - 12.5 HP Briggs

Fuel Tank & Seat Group

28" Hi-Vac Cutting Deck & Deflector

Belt, Blade Brake & Interlock

Yoke Lift Components

Rails, Lift Arms & Cam Lift Group

Wheels - Front & Rear

Decals

Main Case & L.H. Fender Group

Left Hand Fender & Bearing

Primary Chain Case & Smooth Clutch

Differential & R. H. Fender Group

Blade Stop Pedals

Spindle Assembly

Accessories

219977-0130-B1

48 Short Block

Diagram and parts list for the short block engine assembly.

1058 Operator's Manual

Reference to the operator's manual section.

1329 Replacement Engine

Diagram and parts list for replacement engine components.

1330 Repair Manual

Reference to the repair manual section.

219977-0130-B1

Engine Gasket Set-Reference 358

Parts list for the engine gasket set.

Carburetor Overhaul Kit-Reference 121

Parts list for the carburetor overhaul kit.

Valve Gasket Set-Reference 1095

Parts list for the valve gasket set.

Hardware Identification & Torque Specifications

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