Craftsman 989930 Lawn Tractor Repair Parts Manual

How to Use This Manual

This manual is designed to help customers identify parts for their tractor when ordering repair parts. The illustrations may not always represent the exact assemblies, and some hardware and parts are drawn larger for easier identification. Always provide the following information when ordering parts: Product - "Tractor", Model Number - "989930", Part Number, and Part Description. The model number can be found on the fender under the seat.

Schematic

The schematic diagram illustrates the tractor's electrical system. Note that the tractor is equipped with a special alternator system where lights are not connected to the battery but have their own electrical source. This means light brightness varies with engine speed; lights dim at idle and brighten as engine speed increases.

Ignition Switch Positions:

OFF: B
RUN/OVERRIDE: B + S + A1
RUN: M + G + A1
START: B + A1

Wiring insulated clips should be re-installed to properly secure wiring.

Electrical Components

This section details the electrical components of the tractor, including the battery, fuses, switches, harnesses, solenoid, and lights. A detailed list of parts with their corresponding key numbers and descriptions is provided.

Chassis and Enclosures

This section covers the chassis and enclosure parts of the lawn tractor. It includes diagrams and part lists for components such as the dash, hood, grille, fenders, air duct, brackets, and various shields.

Drive System

This section provides an exploded view and parts list for the drive system, including the transaxle, belts, pulleys, shafts, and related hardware. The transaxle is a Tufftorq K46DC.

Engine

Details for the Briggs & Stratton Engine Model 31R777-0003-B1 are provided, including a parts breakdown of the engine components such as the cylinder assembly, head, crankshaft, piston, valves, carburetor, and starter motor. Engine power rating information according to SAE standards is also included.

Steering Assembly

This section outlines the components of the steering assembly, including the steering wheel, axle, spindles, draglinks, sector gear, and related hardware. Part numbers and descriptions are listed for each component.

Mower Deck

This section details the parts for the mower deck, including the deck weldment, blades, pulleys, belts, mandrels, and associated hardware. It covers both left-hand (LH) and right-hand (RH) components.

Mower Lift

The mower lift components are illustrated and listed, including the deck lift weldment, levers, springs, pins, and links necessary for adjusting the mower deck height.

Seat Assembly

This section provides a breakdown of the seat assembly, including the seat itself, fender pivot bracket, seat pan, springs, and mounting hardware.

Bagger

Components for the bagger system are detailed, including the bag assembly, frame, cover, handle, and related hardware for attaching and operating the bagger.

Decals

This section lists various decals for the tractor, including operational, warning, and identification decals for different parts of the machine.

Wheels & Tires

Information on the wheels and tires is provided, including specifications for front and rear tires, tubes, rims, and related components like valve stems and caps.

Tufftorq Transaxle

Detailed parts information for the Tufftorq Transaxle, Model Number K46DC (7A646084421), is presented, including internal components like shafts, gears, seals, springs, and brake mechanisms.

	Craftsman Lawn Tractor 917.273941 Repair Parts Manual This document is a comprehensive repair parts manual for the Craftsman Lawn Tractor, model number 917.273941, featuring Smart Lawn Technology. It includes detailed diagrams and part lists for various components of the tractor and its Briggs & Stratton engine.
	Craftsman Lawn Tractor Variation Speed 42" Deck Illustrated Parts Manual Comprehensive illustrated parts manual for the Craftsman Lawn Tractor, Variation Speed, 42" Deck, covering models C459-60410 and C459-60411. Includes part lists, diagrams, and information on painted parts.
	CRAFTSMAN 944.600880 Lawn Tractor Owner's Manual: Assembly, Operation, and Service This owner's manual provides comprehensive guidance for the CRAFTSMAN 25.0 HP Electric Start 46" Mower Automatic Lawn Tractor (Model No. 944.600880). It details assembly, safe operation, maintenance, troubleshooting, and repair parts, ensuring optimal performance and safety.
	Craftsman Lawn Tractor 917.288513 Repair Parts Manual This document is a repair parts manual for the Craftsman Lawn Tractor, Model No. 917.288513. It includes detailed diagrams and part lists for various assemblies such as the chassis, engine, steering, mower deck, lift assembly, and wheels & tires. Information on repair protection agreements and customer service is also provided.
	Craftsman 944.604311 Lawn Tractor Repair Parts Manual This comprehensive repair parts manual provides detailed diagrams and part numbers for the Craftsman 22 HP Electric Start 42" Mower Automatic Transmission Lawn Tractor, Model No. 944.604311. Essential for identifying and ordering replacement parts.
	Craftsman 944.604311 Lawn Tractor Repair Parts Manual This comprehensive repair parts manual provides detailed diagrams and part numbers for the Craftsman 944.604311 Lawn Tractor, featuring a 22 HP electric start engine, 42" mower, and automatic transmission.
	Craftsman 12.0 HP IC Electric Start 38" Mower Deck 5 Speed Transaxle Lawn Tractor Owner's Manual Owner's manual for the Craftsman 12.0 HP IC Electric Start 38" Mower Deck 5 Speed Transaxle Lawn Tractor, Model No. 917.254520. Includes safety rules, operation, maintenance, and repair parts information.
	Craftsman 21.0 HP Electric Start 42" Automatic Lawn Tractor Owner's Manual Comprehensive owner's manual for the Craftsman 21.0 HP Electric Start 42" Automatic Lawn Tractor. Includes safety rules, assembly instructions, operation guidelines, maintenance schedules, and troubleshooting tips.