craftsman air compressor 919 manual
Craftsman Air Compressor 919 Manual: A Comprehensive Guide
This comprehensive guide details the Craftsman 919 air compressor, covering safety, assembly, operation, maintenance, troubleshooting, and repair parts. It includes model numbers 919.195411 and 919.156881.
The Craftsman 919 air compressor stands as a reliable power source for diverse pneumatic applications, blending durability with consistent performance. Designed for both home and professional users, this twin-cylinder, oil-lubricated compressor delivers ample air pressure for tasks like inflating tires, powering nail guns, and operating sprayers.
This manual provides essential guidance on safe operation, proper maintenance, and effective troubleshooting. Understanding its features and adhering to the outlined procedures will ensure longevity and optimal functionality of your Craftsman 919 air compressor. Always refer to this guide before use.
Model Numbers and Variations (919.195411, 919.156881)
This manual applies to Craftsman air compressor models 919.195411 and 919.156881. While functionally similar, slight variations may exist in specific components or cosmetic details between these models. Always reference the serial number located on the unit for precise identification and to ensure compatibility when ordering replacement parts.
The core operating principles and maintenance procedures outlined within this guide remain consistent across both model numbers. Understanding your specific model number is crucial for accurate support and warranty claims through Sears Service Center (1-800-4-MY-HOME).
Safety First: Important Guidelines
Prioritize safety when operating the Craftsman 919. Read all instructions carefully before use, focusing on electrical safety and compressor-specific hazards.
General Safety Precautions
Always wear safety glasses during operation and maintenance to protect your eyes. Ensure the work area is well-ventilated, as the compressor emits exhaust. Never operate the compressor if damaged, and disconnect power before servicing. Keep children and bystanders away from the operating compressor. Avoid wearing loose clothing or jewelry that could get caught in moving parts. Do not alter the compressor in any way, as this could compromise safety. Always release air pressure before draining the tank. Inspect hoses for damage before each use.
Electrical Safety Instructions
Ensure the power supply voltage matches the compressor’s requirements. Always use a grounded outlet to prevent electrical shock. Never operate the compressor with a damaged cord or plug; replace immediately. Avoid using extension cords if possible, but if necessary, use a heavy-duty cord rated for the compressor’s amperage. Disconnect the power cord before performing any maintenance or repairs. Do not expose the compressor to rain or wet conditions. Never attempt to repair electrical components yourself; consult a qualified electrician.
Air Compressor Specific Hazards
Beware of pressurized air; never point the air hose at anyone. Always release air pressure before disconnecting hoses or performing maintenance. Inspect hoses and fittings regularly for damage or leaks. Ensure the tank is not over-pressurized, adhering to the maximum PSI rating. Avoid modifying the compressor in any way. Be cautious of hot surfaces, especially the motor and cylinder head. Never operate the compressor in an enclosed space without adequate ventilation. Wear appropriate eye and ear protection during operation.
Assembly Instructions
Proper assembly is crucial for safe operation. This section guides unboxing, tank mounting, and hose attachment. Carefully follow each step for optimal performance and longevity.
Unboxing and Component Checklist
Upon receiving your Craftsman 919, carefully inspect the carton for any shipping damage. Once opened, verify all components are present. Essential parts include the compressor unit, air tank, handle assembly, air hose, fittings, and this owner’s manual. Confirm the presence of drain valve, pressure switch, and any included accessories. A missing component should be reported immediately to Sears Service Center at 1-800-4-MY-HOME. Retain the packaging for potential returns or warranty claims. Thoroughly check against the parts list within this manual before proceeding with assembly.
Tank Mounting and Connections
Ensure the air tank is securely mounted to the compressor pump, typically pre-assembled. Inspect all mounting bolts for tightness before operation. Carefully connect the air line from the pump to the tank, verifying a tight seal to prevent leaks. The pressure switch and safety valve must be correctly installed on the tank. Always use thread sealant on all connections. Double-check all fittings for proper alignment and secure fastening. Improper mounting or loose connections can create hazardous conditions, so prioritize safety.
Initial Setup and Air Hose Attachment
Before initial use, verify the compressor is on a level surface. Ensure the drain valve is closed tightly. Attach a compatible air hose to the quick-connect coupler, confirming a secure fit. Inspect the hose for damage before each use. Use only hoses rated for the compressor’s maximum PSI. Never exceed the hose’s pressure limit. Test the connection for leaks with a small amount of air. Proper hose attachment is crucial for safe and efficient operation.
Operating the Craftsman 919
To operate, connect the air hose, power on the unit, and regulate pressure using the controls. Monitor the duty cycle and allow cool-down periods.
Powering On and Pressure Regulation
Before powering on the Craftsman 919, ensure all connections are secure and the drain valve is closed. Plug the compressor into a grounded electrical outlet. The power switch initiates the motor, building air pressure within the tank. Utilize the regulator knob to adjust the output pressure to match your tool’s requirements. Monitor the pressure gauge for accurate settings. Always start with a lower pressure and gradually increase it as needed. Proper regulation prevents tool damage and ensures optimal performance. Remember to release pressure before disconnecting any air tools.
Recommended Air Pressure Settings
The Craftsman 919 air compressor offers versatile pressure settings for diverse applications. For inflating tires, 30-35 PSI is generally sufficient. Impact wrenches typically require 90-120 PSI. Spray guns perform best between 40-60 PSI, depending on the nozzle size. Nail guns usually operate at 70-90 PSI. Always consult your pneumatic tool’s manual for specific pressure recommendations. Exceeding the maximum PSI can cause damage. Regularly check and adjust the regulator to maintain optimal performance and tool longevity. Prioritize safety and tool specifications.
Duty Cycle and Cool-Down Periods
The Craftsman 919 air compressor isn’t designed for continuous operation. Understanding the duty cycle—the run time versus rest time—is crucial. Typically, this model has a 50% duty cycle, meaning it runs for 30 minutes then rests for 30. Allowing adequate cool-down periods prevents overheating and extends the compressor’s lifespan. Monitor the motor temperature; if hot, let it rest longer. Frequent, short bursts are preferable to prolonged use. Ignoring these guidelines can void the warranty and cause premature failure.
Maintenance Schedule
Regular maintenance ensures optimal performance and longevity. This includes daily checks, weekly draining of the tank, and annual filter cleaning or replacement for peak efficiency.
Daily Maintenance Checks
Before each use, inspect the Craftsman 919 air compressor for any loose parts, damaged hoses, or leaks. Verify the oil level is adequate, especially with its oil-lubricated system. Ensure the air filter is clean and free of debris. Check the power cord for fraying or damage. Listen for unusual noises during operation, which could indicate a problem. Confirm the pressure gauge reads accurately. Proper daily checks contribute to safe and reliable performance, preventing costly repairs and extending the compressor’s lifespan.
Weekly Drain Valve Operation
Regularly draining the tank is crucial for the Craftsman 919 air compressor’s longevity. Moisture buildup causes corrosion and reduces efficiency. Each week, turn off and unplug the compressor, then open the tank drain valve, located at the bottom of the tank. Allow all accumulated water to drain completely. Close the valve securely afterward. This simple procedure prevents rust, maintains air quality, and ensures optimal compressor performance. Neglecting this step can lead to tank failure and costly repairs.
Annual Filter Cleaning and Replacement
Maintaining a clean air filter is vital for the Craftsman 919 air compressor’s performance. Annually, inspect the air filter for dirt and debris. If it’s excessively dirty, clean it by gently tapping it to remove loose particles, or replace it with a new filter. A clogged filter restricts airflow, reducing compressor efficiency and potentially damaging the pump. Ensure the replacement filter is the correct type for your model. Regular filter maintenance extends the compressor’s lifespan and ensures clean, dry air.
Troubleshooting Common Issues
This section addresses frequent problems with the Craftsman 919, including failure to start, low pressure, and air leaks—offering solutions for optimal performance.
Compressor Won’t Start
If the compressor fails to start, first verify a functioning power outlet and check the circuit breaker. Ensure the power switch is firmly in the ‘on’ position. Inspect the pressure switch for proper operation; it may need adjustment or replacement. A tripped overload protector, often a small reset button, could be the issue—allow it to cool before resetting. Low voltage can also prevent starting. Finally, a faulty start capacitor or a worn-out motor might require professional attention.
Low Air Pressure Problems
Experiencing low air pressure? Begin by checking for air leaks in hoses, fittings, and the tank itself. Ensure the pressure regulator is set to the desired PSI. A clogged air filter restricts airflow, reducing performance; clean or replace it. Verify the compressor isn’t exceeding its duty cycle, allowing sufficient cool-down time. Inspect the check valve, ensuring it’s sealing correctly. A failing compressor pump may struggle to reach optimal pressure, requiring repair.
Air Leaks and How to Identify Them
Air leaks reduce compressor efficiency. Listen carefully around fittings, hoses, and the tank for hissing sounds. Apply a soapy water solution to connections; bubbles indicate leaks. Check the drain valve for proper sealing. Inspect the air hose for cracks or damage. Tighten all fittings securely, but avoid over-tightening. A leaking tank requires professional repair or replacement. Regularly inspect all components to prevent significant pressure loss and ensure optimal performance.
Repair Parts and Replacement
Locate key components for repair, sourcing replacements through Sears or compatible suppliers. The one-year limited warranty covers defects in materials or workmanship.
Identifying Key Components
Essential parts include the air tank, motor, pump, pressure switch, check valve, and drain valve. Understanding these components aids in troubleshooting and repair. The twin-cylinder pump delivers consistent airflow. Inspect the pressure switch for proper operation, regulating air pressure. Regularly check the check valve to prevent air leakage. Ensure the drain valve functions correctly to remove moisture. Familiarize yourself with the location of each part for efficient maintenance and potential replacements, referencing diagrams within the manual.
Sourcing Replacement Parts
Replacement parts can be found at various retailers, including the Craftsman website (www.sears.com/craftsman) and Sears Service Centers. Contact Sears directly at 1-800-4-MY-HOME for assistance locating specific components. Online parts suppliers also offer a wide selection. Always have the model number (919.195411 or 919.156881) and, if possible, the serial number handy to ensure compatibility. Genuine Craftsman parts are recommended for optimal performance and warranty validity.
Warranty Information (One Year Limited Warranty)
Craftsman provides a full one-year warranty on this air compressor, covering defects in materials or workmanship from the purchase date. Sears will, at its option, repair or replace the unit free of charge. Contact your nearest Sears Service Center at 1-800-4-MY-HOME to arrange repairs or return the compressor to the place of purchase for replacement; This warranty does not cover damage from misuse or neglect.
Understanding the Air Compressor’s Features
The Craftsman 919 boasts a twin-cylinder design and an oil-lubricated system for durability. It features a permanently lubricated tank with a substantial capacity.
Twin Cylinder Design
The Craftsman 919 air compressor utilizes a robust twin-cylinder pump. This configuration significantly enhances the compressor’s efficiency and overall performance. Having two cylinders working in tandem allows for a more consistent airflow delivery, reducing pulsations and providing smoother operation for pneumatic tools.
This design contributes to faster tank filling times and improved recovery rates, minimizing downtime during extended use. The twin-cylinder setup also distributes the workload, potentially extending the lifespan of the compressor components. It is a key feature for both home and professional applications.
Oil-Lubricated System
The Craftsman 919 air compressor features an oil-lubricated pump, crucial for long-term durability and reduced wear. Oil lubrication minimizes friction between moving parts, dissipating heat and preventing premature component failure. Regular oil checks and changes, as outlined in the maintenance schedule, are vital for optimal performance.
Compared to oil-free compressors, oil-lubricated models generally operate quieter and offer a longer service life; The oil provides a protective barrier, safeguarding the piston and cylinder walls. Maintaining proper oil levels ensures smooth operation and consistent air delivery.
Tank Capacity and Material
The Craftsman 919 air compressor is equipped with a robust air tank designed to store compressed air for various pneumatic tools. The tank’s capacity allows for extended tool operation without constant motor cycling. Typically, the tank is constructed from high-quality steel, ensuring durability and resistance to corrosion.
The steel tank is engineered to withstand the maximum PSI rating of the compressor, prioritizing safety and reliability. Regular inspection of the tank for rust or damage is recommended. Proper tank maintenance contributes to the compressor’s overall longevity and performance.
Technical Specifications
This section details key specifications, including voltage, amperage, horsepower, CFM rating, and maximum PSI for the Craftsman 919 air compressor.
Voltage and Amperage
The Craftsman 919 air compressor is typically designed for standard 120-volt household electrical circuits. It generally requires a 15-amp circuit for safe and reliable operation, though checking the specific nameplate is crucial. The amperage draw during operation will vary depending on whether the motor is running or in standby mode. Always ensure the power cord is in good condition and properly grounded. Using an extension cord is discouraged, but if necessary, use a heavy-duty cord rated for at least the compressor’s amperage; Incorrect voltage or amperage can damage the compressor and void the warranty.
Horsepower and CFM Rating
The Craftsman 919 air compressor generally features a horsepower rating between 2 and 2.5 HP, providing sufficient power for many common pneumatic tools. Its CFM (Cubic Feet per Minute) rating, a measure of air delivery, typically falls around 5.7 CFM at 90 PSI. This CFM rating determines the compressor’s ability to power tools continuously. Higher CFM means it can run tools longer without needing to recharge. Always check the CFM requirements of your air tools and ensure they are compatible with the compressor’s output.
Maximum PSI
The Craftsman 919 air compressor is designed to reach a maximum pressure of 150 PSI within its tank. This high PSI allows for a substantial air reserve, capable of powering a wide range of pneumatic tools effectively. However, it’s crucial to regulate the output pressure using the regulator valve to match the tool’s requirements. Operating at the correct PSI extends tool life and ensures optimal performance. Exceeding the tool’s maximum PSI can cause damage or safety hazards.
Serial Number Location and Importance
Locate the serial number on the compressor unit itself; it’s vital for identifying your specific model, accessing support, and verifying warranty coverage.
Locating the Serial Number
Finding your Craftsman 919 air compressor’s serial number is crucial for service and support. According to available manuals, the serial number is typically affixed to a plate located on the compressor’s tank. Carefully inspect the outer surface of the tank, often near the base or motor mounting area.
Look for a metallic or plastic label displaying a series of numbers and/or letters. This unique identifier is essential when contacting Sears Service Center (1-800-4-MY-HOME) or ordering replacement parts. Record this number in a safe place for future reference, as it confirms your model and warranty details.
Using the Serial Number for Support
Your Craftsman 919 air compressor’s serial number is vital when seeking assistance. Providing this number to Sears Service Center (1-800-4-MY-HOME) ensures they accurately identify your specific model and its corresponding parts. This streamlines the troubleshooting process and guarantees you receive the correct repair advice.
When ordering replacement parts, the serial number confirms compatibility, preventing incorrect purchases. It also verifies your warranty status, allowing Sears to honor the one-year limited warranty. Keep the serial number handy for efficient service and to maximize your product’s lifespan.
Additional Resources
For further assistance, visit the official Craftsman website for manuals and support. Contact Sears Service Center directly at 1-800-4-MY-HOME for expert help.
Craftsman Website for Manuals
Accessing the Craftsman website (www.sears.com/craftsman) provides a valuable resource for downloading the official manual for your Craftsman 919 air compressor. You can easily locate the manual by entering the model number (919.195411 or 919.156881) into the search bar.
The website offers digital copies of manuals, parts diagrams, and frequently asked questions. This online resource allows for convenient access to information, eliminating the need for a physical copy. Regularly check the site for updates and revisions to ensure you have the most current information available for your air compressor.
Sears Service Center Contact Information (1-800-4-MY-HOME)
For assistance with your Craftsman 919 air compressor, including warranty claims, repairs, or troubleshooting, contact the Sears Service Center at 1-800-4-MY-HOME. Knowledgeable representatives are available to guide you through potential issues and schedule service appointments if needed.
This dedicated helpline can assist with locating authorized repair facilities in your area and provide information regarding replacement parts. Remember to have your model number (919.195411 or 919.156881) readily available when calling for efficient support.
Español: Manual en Español
For Spanish-speaking users, a translated version of the Craftsman 919 air compressor manual is available. This provides all the essential safety guidelines, assembly instructions, operational procedures, and maintenance schedules in Spanish. Accessing this version ensures clear understanding and safe operation for those more comfortable with the Spanish language.
The Spanish manual covers the same comprehensive information as the English version, including troubleshooting tips and details on warranty coverage. It is a valuable resource for maximizing the lifespan and performance of your compressor.