If you’re a proud owner of a Craftsman lawn mower model 917, then you know that routine maintenance and occasional repairs are essential to keep it running smoothly. But with all the different parts that make up your mower, it can be overwhelming to know which ones are the most common and likely to need replacing. In this article, we’ll take a closer look at the common parts found in a Craftsman lawn mower model 917, giving you a better understanding of what to expect and how to keep your beloved mower in top shape all season long.
Engine
The engine is the heart of your Craftsman lawn mower. It is responsible for powering the machine and generating the necessary energy to keep the mower running smoothly. The engine consists of various components, each working together to ensure optimal performance.
Spark Plug
The spark plug is a crucial component of the engine’s ignition system. It creates the spark needed to ignite the fuel-air mixture in the combustion chamber, which in turn powers the engine. Regularly inspecting and cleaning the spark plug, and replacing it when necessary, is essential for efficient engine operation.
Air Filter
The air filter plays a vital role in maintaining the engine’s performance by preventing dirt, dust, and debris from entering the combustion chamber. A clean air filter ensures a steady flow of clean air, which is essential for proper combustion. It is recommended to clean or replace the air filter regularly to maintain optimal engine performance.
Fuel Filter
The fuel filter prevents impurities and debris from contaminating the fuel that flows into the engine. It filters out any particles that could clog the fuel lines or cause damage to the engine. Regularly inspect and replace the fuel filter to ensure a constant supply of clean fuel to the engine.
Carburetor
The carburetor is responsible for mixing the fuel and air in the correct proportions before it enters the combustion chamber. It regulates the engine’s fuel flow and ensures smooth operation. Regular maintenance and cleaning of the carburetor are crucial to prevent clogs and ensure proper fuel mixture.
Oil Filter
The oil filter is responsible for removing contaminants from the engine oil, keeping it clean and free from debris. Regularly changing the oil filter helps prolong the life of the engine and ensures optimal performance. It is recommended to replace the oil filter during every oil change.
Battery
The battery powers the electric starting system of the lawn mower. It provides the necessary electrical energy to start the engine and operate the various electrical components, such as headlights and safety switches. Regularly inspecting and maintaining the battery’s charge level is essential for reliable starting and operation of the lawn mower.
Starter
The starter is an electric motor that initiates the engine’s rotation, allowing it to start running. It is engaged when you turn the ignition key or press the start button. Regular maintenance and prompt repair of any starter issues are crucial to ensure trouble-free starting of the lawn mower.
Ignition System
The ignition system consists of various components, including the ignition coil, spark plug, and flywheel. It generates the spark required to ignite the fuel-air mixture in the combustion chamber. Regular inspection and maintenance of the ignition system components are essential for reliable engine performance and starting.
Governor
The governor regulates the speed of the engine, ensuring it operates at a consistent and controlled RPM (revolutions per minute). It prevents the engine from running too fast or too slow, optimizing performance and preventing damage. Proper adjustment and maintenance of the governor are necessary for reliable and efficient engine operation.
Muffler
The muffler reduces the noise produced by the engine’s exhaust gases. It also helps in directing the exhaust gases away from the operator and surrounding areas. Regular inspection and cleaning of the muffler are important to maintain optimal engine performance and minimize noise pollution.
Blade System
The blade system is responsible for cutting and mulching the grass. It consists of several components that work in unison to achieve a clean and even cut.
Blade
The blade is the primary cutting component of the lawn mower. It rotates at high speeds to cut the grass blades to an even length. Regular sharpening or replacement of the blade is essential for clean and efficient grass cutting.
Blade Adapter
The blade adapter connects the blade to the engine’s crankshaft. It ensures a secure and reliable connection, allowing the blade to rotate smoothly. Regular inspection and tightening of the blade adapter are important to prevent any vibrations or wobbling during operation.
Blade Bolt
The blade bolt secures the blade and blade adapter to the crankshaft. It is important to periodically inspect and tighten the blade bolt to prevent any loosening or detachment of the blade during operation.
Blade Control Cable
The blade control cable enables the operator to engage and disengage the blade conveniently. It connects the blade engagement lever or switch to the blade clutch or pulley system. Regular inspection and lubrication of the blade control cable are important to ensure smooth and responsive blade engagement.
Blade Brake
The blade brake is a safety feature that automatically stops the blade’s rotation when the operator releases the blade control lever or switch. It helps prevent accidents and injuries by quickly halting the blade’s movement. Regular inspection and maintenance of the blade brake mechanism are essential for optimal safety while using the lawn mower.
Deck and Cutting Height
The deck and cutting height components are responsible for the overall cutting performance of the lawn mower. They determine the height at which the grass is cut and play a crucial role in achieving a neat and even appearance.
Cutting Deck
The cutting deck is the metal housing that encloses the blade and controls the cutting height. It is usually made of durable steel to withstand the stresses of cutting grass. Regular cleaning and inspection of the cutting deck are important to prevent grass buildup and ensure efficient grass cutting.
Deck Belt
The deck belt connects the engine’s pulley system to the cutting deck, transferring power from the engine to the blade for cutting. Regular inspection and replacement of the deck belt are essential to prevent any slipping or wearing, which could lead to poor cutting performance.
Cutting Height Adjustment Lever
The cutting height adjustment lever allows the operator to select the desired cutting height for the grass. It adjusts the position of the cutting deck to achieve the desired height. Regular lubrication and inspection of the cutting height adjustment lever are important to ensure smooth operation and proper cutting height control.
Cutting Height Gauge
The cutting height gauge helps in accurately measuring and adjusting the cutting height of the lawn mower. It provides a reference point for the operator to set the desired cutting height. Regular maintenance and calibration of the cutting height gauge are important to ensure accurate and consistent cutting results.
Handle and Controls
The handle and control components of the lawn mower enable the operator to maneuver and control the machine comfortably and safely.
Handle Assembly
The handle assembly consists of the upper and lower handles that provide grip and support to the operator. It is important to regularly inspect and tighten the handle assembly to ensure stability and prevent any operational issues.
Control Cables
Control cables connect various control levers or switches to their respective components, such as the engine, blade engagement system, and drive system. Regular inspection and lubrication of the control cables are necessary to ensure responsive and reliable control of the lawn mower.
Throttle Control
The throttle control regulates the engine’s speed and RPM. It allows the operator to increase or decrease the engine’s power output as needed during operation. Regular inspection and maintenance of the throttle control are important for smooth and precise engine speed control.
Drive Control
The drive control lever or system enables the operator to engage and disengage the lawn mower’s self-propulsion feature. It controls the forward or backward motion of the mower. Regular inspection and lubrication of the drive control mechanism are important to maintain optimal self-propulsion performance.
Safety Key
The safety key is a unique feature of some Craftsman lawn mowers. It acts as a safety switch that activates the electrical system and prevents accidental starting or operation of the mower. The safety key should always be properly inserted and secured during use to ensure operator safety.
Wheels and Tires
The wheels and tires of the lawn mower provide maneuverability, stability, and traction on various terrains.
Front Wheels
The front wheels are responsible for steering and guiding the lawn mower during operation. Regular inspection and lubrication of the front wheel bearings and axle are necessary to ensure smooth and effortless steering.
Rear Wheels
The rear wheels provide traction and stability to the lawn mower. They help propel and maneuver the machine on different surfaces. Regular inspection and maintenance of the rear wheels are important to ensure optimal traction and prevent any operational issues.
Tire Tread
The tire tread is designed to provide grip and traction on various surfaces. It helps prevent slippage and ensures smooth operation of the lawn mower. Regular inspection of the tire tread is important to identify any signs of wear or damage, and timely replacement is necessary to maintain proper traction.
Wheel Bearings
Wheel bearings enable the smooth rotation of the wheels. Regular lubrication and inspection of the wheel bearings are important to ensure smooth wheel operation and prevent any damage or breakdown.
Wheel Flange
The wheel flange is a component that attaches the wheel to the axle or hub. It provides stability and prevents the wheel from wobbling or detaching during operation. Regular inspection and tightening of the wheel flange are important to ensure safe and stable wheel operation.
Transmission and Drive System
The transmission and drive system of the lawn mower enable self-propulsion and determine the speed and direction of the machine.
Transaxle
The transaxle is the transmission unit that transfers power from the engine to the drive wheels. It allows for variable speed control and smooth operation of the self-propulsion feature. Regular maintenance and inspection of the transaxle are important to ensure optimal performance and longevity.
Drive Belt
The drive belt connects the engine’s pulley system to the transaxle or drive wheels, transferring power for self-propulsion. Regular inspection and replacement of the drive belt are crucial to prevent any slipping or wearing, which could lead to decreased self-propulsion performance.
Drive Pulley
The drive pulley is connected to the engine’s crankshaft and works in conjunction with the drive belt to drive the transaxle or drive wheels. Regular inspection and maintenance of the drive pulley are important to ensure proper power transfer and optimal self-propulsion operation.
Idler Pulley
The idler pulley, also known as the tensioner pulley, maintains tension on the drive belt to prevent slippage. It keeps the belt in place and ensures proper power transmission. Regular inspection and lubrication of the idler pulley are important to maintain optimal tension and prevent any operational issues.
Brake Cable
The brake cable controls the braking mechanism of the lawn mower, allowing the operator to stop the machine quickly and safely. Regular inspection and adjustment of the brake cable are important to ensure responsive braking and operator safety.
Fuel System
The fuel system components of the lawn mower store, filter, and deliver fuel to the engine for combustion.
Fuel Tank
The fuel tank is where the gasoline or fuel is stored for the operation of the lawn mower. It is important to regularly inspect and clean the fuel tank to prevent any debris or impurities from entering the fuel system.
Fuel Cap
The fuel cap seals the fuel tank to prevent fuel leakage and evaporation. It should always be securely tightened to maintain fuel system integrity and prevent any operational issues.
Fuel Line
The fuel line transfers fuel from the fuel tank to the engine’s carburetor. Regular inspection and replacement of the fuel line are important to prevent any leaks, blockages, or other fuel system malfunctions.
Fuel Pump
Some Craftsman lawn mowers feature a fuel pump that helps deliver fuel from the tank to the engine. Regular inspection and maintenance of the fuel pump are important to ensure proper fuel flow and prevent any operational issues.
Electrical System
The electrical system of the lawn mower powers various components and ensures reliable operation.
Wiring Harness
The wiring harness connects all the electrical components of the lawn mower, such as the ignition system, lights, safety switches, and solenoid. Regular inspection and maintenance of the wiring harness are important to prevent any shorts, wiring damage, or other electrical malfunctions.
Headlights
Headlights provide illumination for mowing in low-light conditions. Regular inspection and bulb replacement are important to ensure proper functionality and enhanced visibility during operation.
Safety Switches
Safety switches are designed to prevent accidental starting or operation of the lawn mower. They include features like the seat safety switch and blade engagement safety switch. Regular inspection and maintenance of safety switches are crucial to ensure proper safety operation of the lawn mower.
Solenoid
The solenoid is an electrical switch that controls the flow of electricity from the battery to the starter. Regular inspection and maintenance of the solenoid are important to ensure reliable starting and operation of the lawn mower.
Voltage Regulator
The voltage regulator controls the output voltage of the lawn mower’s charging system, ensuring proper battery charging and electrical component operation. Regular inspection and maintenance of the voltage regulator are important to prevent overcharging or undercharging of the battery.
Grass Collection
The grass collection components of the lawn mower help gather and contain the grass clippings for disposal or mulching.
Grass Bag
The grass bag is an attachment that collects and contains the grass clippings during mowing. It allows for easy disposal or can be used for mulching purposes. Regular cleaning and inspection of the grass bag are important to prevent clogging and ensure efficient collection of grass clippings.
Bag Frame
The bag frame provides structural support to the grass bag, holding it in place during mowing. Regular inspection and tightening of the bag frame are important to ensure stable attachment and prevent any operational issues.
Chute
The chute guides the grass clippings from the cutting deck into the grass bag. It ensures proper flow and containment of the clippings. Regular cleaning and inspection of the chute are important to prevent clogging and ensure efficient grass collection.
Bagging Blade
The bagging blade is designed specifically for effective grass collection. It features a unique shape that enhances the airflow and directs the grass clippings into the chute for collection in the bag. Regular inspection and maintenance of the bagging blade are important to ensure optimal collection performance.
Chute Adapter
The chute adapter connects the cutting deck’s discharge chute to the grass bag’s chute. It ensures a secure and proper fit, allowing for efficient grass collection. Regular inspection and maintenance of the chute adapter are important to prevent any obstructions or leaks.
Miscellaneous Parts
In addition to the major components, there are various miscellaneous parts that contribute to the overall functionality and appearance of the Craftsman lawn mower.
Bumper
The bumper protects the front of the lawn mower from accidental collisions and provides additional strength and durability. Regular inspection and maintenance of the bumper are important to ensure proper protection and aesthetic appeal.
Wheel Adjustment Knob
The wheel adjustment knob allows for easy and convenient adjustment of the cutting height or wheel height. Regular lubrication and inspection of the wheel adjustment knob are important to ensure smooth operation and prevent any operational issues.
Seat
The seat provides comfort and support to the operator during extended periods of mowing. Regular inspection and maintenance of the seat are important to ensure proper comfort and prevent any damage or wear.
Cables and Connectors
Various cables and connectors are used throughout the lawn mower for electrical connections and control mechanisms. Regular inspection and maintenance of these cables and connectors are important to ensure proper electrical connection and reliable operation.
Decals
Decals are the stickers or labels that provide important instructions, safety guidelines, or branding information on the lawn mower. Regular inspection and replacement of decals are important to ensure visibility and compliance with safety instructions.
In conclusion, a Craftsman lawn mower Model 917 is a complex machine consisting of numerous components working together to provide efficient grass cutting and reliable operation. Regular inspection, maintenance, and replacement of these common parts are crucial for ensuring optimal performance and longevity of the lawn mower. By understanding the functionality and importance of each component, you can keep your Craftsman lawn mower in excellent condition and enjoy a well-maintained and manicured lawn.