craftsman 917.388 manual
Craftsman 917.388 Manual: A Comprehensive Guide
This guide provides detailed instructions for the Craftsman 917.388 lawn mower, including safety, operation, maintenance, and troubleshooting information.
The Craftsman 917.388 is a 6.0 horsepower, 21-inch multi-cut rotary lawn mower designed for residential use. This manual serves as a comprehensive resource for owners, detailing safe operation and effective maintenance procedures. Before initial use, carefully review all safety precautions and operating instructions to ensure optimal performance and longevity of your mower.
Accessing the owner’s manual, available for download as a PDF from Sears and Manual-Hub, is crucial. Understanding the components and proper usage will prevent damage and ensure a satisfying lawn care experience. This guide will help you navigate repairs and locate replacement parts when needed.
Understanding the 917.388 Model Series
The Craftsman 917.388 series encompasses various similar models, often differing slightly in specific features or year of manufacture (e.g., 917388521, 917388750, 917.388391). However, the core functionality and maintenance procedures remain largely consistent across the series. This manual provides guidance applicable to most variations within the 917.388 range.
Key components, such as the engine, blade assembly, and drive system, are common to all models. Replacement parts are generally interchangeable within the series. Referencing exploded view diagrams, available through parts locators, will aid in identifying specific components and ensuring correct replacements. Always verify the model number when ordering parts.
Safety Precautions & Operating Instructions
Prioritize safety; read the entire manual before operation. Understand all safety rules and operating procedures to prevent injury during lawn mower use.
General Safety Rules for Lawn Mowers
Always exercise caution when operating the Craftsman 917.388. Thoroughly inspect the mowing area for stones, toys, or other objects that could become projectiles. Never allow children to operate the mower, and keep bystanders at a safe distance.
Before each use, ensure all guards and shields are securely attached. Never remove or bypass safety devices. Wear appropriate safety gear, including eye protection and sturdy footwear. Avoid operating the mower while under the influence of drugs or alcohol.
Refuel only when the engine is cool and with the mower on a level surface. Be mindful of exhaust fumes; operate in a well-ventilated area. Disconnect the spark plug wire before performing any maintenance or repairs.
Pre-Operation Checklist
Before each use of your Craftsman 917.388, a thorough check is crucial for safe and efficient operation. First, verify the oil level, ensuring it’s within the recommended range. Inspect the air filter for cleanliness, replacing it if necessary. Check the blade for sharpness and damage, sharpening or replacing as needed.
Confirm that all nuts and bolts are tightened securely. Examine the fuel lines for leaks or cracks. Ensure the grass catcher is properly attached. Clear the mowing area of any debris that could be hazardous. Finally, double-check all safety shields and guards are in place and functioning correctly.
Starting and Stopping the Engine
To start the Craftsman 917.388, ensure the blade is disengaged and the parking brake is set. Prime the engine by pressing the primer bulb several times. Position the throttle to the ‘choke’ setting for cold starts, then pull the starter rope firmly and steadily. Once running, gradually move the throttle to the ‘run’ position.
To stop the engine, release the throttle and disengage the blade. Allow the engine to idle briefly before shutting it off. Never force the engine to stop by disconnecting the spark plug wire while running. Always ensure the engine has completely stopped before making any adjustments or performing maintenance.
Adjusting Cutting Height
The Craftsman 917.388 features multiple cutting height positions, adjustable via levers located near each wheel. To change the height, disengage the engine and ensure the mower is on a level surface. Squeeze the lever on the desired wheel and move it to the preferred cutting height setting. Repeat this process for all four wheels, ensuring they are all set to the same height for an even cut.
Available heights typically range from 1 to 3 inches. Lower settings are ideal for closely manicured lawns, while higher settings are better suited for taller grass or uneven terrain. Regularly check and adjust the cutting height to achieve optimal results.
Maintenance & Servicing
Regular maintenance ensures optimal performance and extends the life of your Craftsman 917.388. Follow the scheduled maintenance tasks outlined in this section.
Routine Maintenance Schedule
To maintain peak performance of your Craftsman 917.388, adhere to this schedule. After each use, inspect the blade for damage and clean the mower deck. Every 25 hours of operation, check the engine oil level and add if necessary. Monthly, clean or replace the air filter, ensuring proper airflow to the engine.
Every season, sharpen or replace the cutting blade for a clean cut. Annually, change the engine oil completely and inspect the spark plug. Clean the underside of the deck to prevent corrosion. Before storing for extended periods, stabilize the fuel or drain the tank to prevent gumming. Following this routine will help ensure reliable operation for years to come.
Blade Sharpening and Replacement
A sharp blade is crucial for a clean cut and healthy lawn. Regularly inspect the blade for nicks, dullness, or damage. To sharpen, remove the blade and secure it safely. Use a file or grinding wheel to restore the original angle, ensuring balance. An unbalanced blade causes excessive vibration.
If the blade is severely damaged or worn, replace it with a genuine Craftsman replacement part. Always disconnect the spark plug wire before working on the blade. When installing a new blade, ensure it’s properly tightened to the specified torque. Safety first – wear gloves and eye protection during this process.
Engine Oil Checks and Changes
Maintaining proper oil levels is vital for engine longevity. Check the oil before each use, ensuring it reaches the ‘full’ mark on the dipstick. Low oil levels can cause severe engine damage. Change the oil after the first 25 hours of operation, then every 50 hours, or annually, whichever comes first.
Use the recommended oil type and weight specified in this manual. To change the oil, warm the engine slightly, then drain the old oil completely. Replace the oil filter with a new one. Carefully add the correct amount of fresh oil, and recheck the level. Dispose of used oil responsibly at a recycling center.
Air Filter Cleaning and Replacement
A clean air filter ensures optimal engine performance and prevents damage. Inspect the air filter regularly – ideally before each use – for dirt and debris. If the filter is lightly soiled, gently tap it to remove loose particles or use compressed air, blowing from the inside out.
For heavily soiled filters, replacement is recommended. A clogged air filter restricts airflow, reducing power and increasing fuel consumption. To replace the filter, locate the air filter housing and remove the cover. Install the new filter, ensuring a proper seal, and reattach the cover securely. Regular maintenance extends engine life.
Spark Plug Inspection and Replacement
Regular spark plug inspection is crucial for reliable engine starting and efficient combustion. Disconnect the spark plug wire before inspecting or replacing the plug to prevent accidental starting. Check the spark plug for signs of wear, fouling, or damage – look for cracked insulators or carbon buildup.
To remove the spark plug, use a spark plug wrench and turn it counterclockwise. Gap the new spark plug according to the engine specifications (refer to the owner’s manual). Install the new spark plug, tightening it to the recommended torque. Reconnect the spark plug wire securely. A faulty spark plug can cause starting problems and reduced performance.
Troubleshooting Common Issues
This section details solutions for common problems like engine failure, uneven cutting, and excessive vibration, ensuring your Craftsman 917.388 operates smoothly.
Engine Won’t Start
If your Craftsman 917.388 engine fails to start, begin with the basics. Ensure the fuel tank contains fresh gasoline and the fuel shut-off valve is open. Check the spark plug wire connection – it must be securely attached. A fouled or wet spark plug is a common culprit; remove it, dry it, and check for proper spark.
Verify the engine’s safety features are disengaged; the operator presence control lever must be held down. Inspect the air filter for obstructions, as a clogged filter restricts airflow. Low engine oil can also prevent starting, so check the oil level. If these steps don’t resolve the issue, a carburetor problem or a more significant engine fault may require professional attention.
Uneven Cutting
Experiencing uneven cutting with your Craftsman 917.388? Several factors could be at play. First, ensure the blade is sharp and properly balanced. A dull or bent blade tears grass instead of cutting cleanly. Check the tire pressure; unevenly inflated tires cause an inconsistent cutting height.
Also, verify the deck is level. An unlevel deck results in scalping in some areas and uncut grass in others. Adjust the cutting height to a suitable setting for your lawn conditions. Finally, avoid cutting wet grass, as it clumps and leads to an uneven finish. Regularly cleaning the underside of the deck prevents buildup that can affect cutting performance.
Excessive Vibration
If your Craftsman 917.388 is experiencing excessive vibration, immediate attention is crucial. A common cause is an unbalanced blade; remove and inspect it for damage or uneven wear. Ensure the blade is securely fastened with the correct bolt and tightened to the manufacturer’s specifications.
Check the engine mounting bolts to confirm they are tight, as loose mounts contribute to vibration. Inspect the deck for any damage or debris that might be causing imbalance. Worn or damaged engine components, like a faulty flywheel key, can also induce vibration. If the problem persists after these checks, professional servicing is recommended to prevent further damage.
Parts & Diagrams
Locate replacement parts and exploded view diagrams for key components of the Craftsman 917.388, aiding in repairs and maintenance procedures.
Locating Replacement Parts
Finding replacement parts for your Craftsman 917.388 lawn mower is crucial for maintaining its performance and longevity. Sears is a primary source, offering a wide selection of genuine Craftsman parts through their website, www.sears.com/craftsman. You can search by model number (917.388) to ensure compatibility.
Alternatively, several online retailers specialize in lawn mower parts, often providing diagrams to help identify the correct component. Manual-hub.com is a useful resource for accessing parts lists and diagrams. When ordering, always verify the part number and specifications to avoid incorrect purchases. Consider gasket sets, pulley/spring assemblies, and seals for common replacements. Repair clinics and local hardware stores may also stock frequently needed parts.
Exploded View Diagrams of Key Components
Accessing exploded view diagrams is essential for understanding the assembly of your Craftsman 917.388 lawn mower and identifying individual parts. These diagrams visually break down complex components into smaller, manageable pieces. Websites like Manual-hub.com often host these diagrams, allowing you to pinpoint the exact location and orientation of each part.
Key components typically covered include the engine, deck assembly, blade system, and drive mechanism. Diagrams illustrate how these parts connect, aiding in repairs and maintenance. Utilizing these visuals alongside the parts list ensures accurate reassembly. Understanding these diagrams simplifies tasks like blade replacement or engine servicing, promoting efficient and correct repairs.
Warranty Information
Craftsman provides warranty details for the 917.388 model, covering defects in materials and workmanship. Refer to Sears.com/craftsman for complete terms.
Craftsman Warranty Details
Craftsman stands behind its products, offering a limited warranty on the 917.388 lawn mower. This warranty typically covers defects in materials and workmanship for a specified period, often one to two years from the date of purchase.
The warranty’s duration can vary based on component – engine parts may have a shorter coverage period than the deck or frame. It’s crucial to retain your proof of purchase for warranty claims. The warranty does not cover damage resulting from misuse, improper maintenance, or normal wear and tear.
For detailed warranty information, including specific coverage terms and claim procedures, visit the official Sears website at www.sears.com/craftsman. There, you’ll find the complete warranty statement for your Craftsman 917.388 model.
Contacting Craftsman Support
For assistance with your Craftsman 917.388 lawn mower, several support options are available. The primary resource is the official Sears website, www.sears.com/craftsman, which features a comprehensive FAQ section and troubleshooting guides.
You can also connect with Craftsman support via phone. While a direct number isn’t prominently displayed, navigating the Sears customer service portal will lead you to the appropriate department. Online chat support is often available, providing immediate assistance with common issues.
When contacting support, have your model number (917.388) and purchase date readily available. This will expedite the process and ensure you receive accurate, tailored assistance. Manual-hub.com also provides some resources, but Sears is the official channel.