This document describes the Craftsman Twin Hot Dog Air Compressor, model CMXECXA0220242. This is an instruction manual that provides safety alerts, operational guidelines, technical specifications, and maintenance procedures for the air compressor.
The Craftsman Twin Hot Dog Air Compressor is designed to provide compressed air for various applications. It is a portable unit, as indicated by the presence of a handle (11) for easy transport. The compressor operates by drawing in ambient air, compressing it, and storing it in two tanks (the "twin hot dog" design). The compressed air is then available for use through an outlet pressure gauge (9) and quick connect (6).
Important Technical Specifications:
- Voltage/Hz- Single Phase: 120/60 Amps
- Minimum Branch Circuit Requirement: 3 Amps
- Air Tank Capacity: 2 Gallons (7.5 Liters)
- Approximate Cut-In Pressure: 95 psig
- Approximate Cut-Out Pressure: 125 psig
- SCFM @ 40 psig: 0.7 *
- SCFM @ 90 psig: 0.5 *
- Regulated Pressure Rating (Approximate): 0–125 psi
- Duty Cycle: 50%
Usage Features:
The compressor is equipped with several features to facilitate its use:
- On/Off Switch (4): This switch controls the power to the compressor. The "On(I)" position activates the compressor, while the "Off(O)" position deactivates it.
- Pressure Switch: This automatically starts and stops the motor to maintain pressure within the tanks. The "cut-in" pressure is 95 psig, and the "cut-out" pressure is 125 psig.
- Tank Pressure Gauge (5): Displays the current pressure inside the air tanks.
- Outlet Pressure Gauge (9): Indicates the regulated air pressure available at the outlet, which can be adjusted using the regulator knob.
- Regulator Knob (7): Allows the user to adjust the outlet air pressure to suit the specific application. Turning it clockwise increases pressure, and counter-clockwise decreases it.
- Quick Connect (6): Provides a convenient connection point for air hoses and tools.
- Safety Valve (8): An essential safety feature that automatically releases air if the tank pressure exceeds a safe limit, preventing over-pressurization.
- Drain Valve (10): Located at the bottom of the air tank, this valve is used to drain condensation from the tanks. (Not pictured in Fig. A, but referenced in Fig. D).
- Cooling System: The compressor incorporates an advanced cooling system with an engineered fan to maintain optimal operating temperatures.
- Air Compressor Pump: Compresses air into the tank. The pump is not available until the compressor has raised the tank pressure above that required at the air outlet.
- Check Valve: When the compressor is operating, the check valve is "open," allowing compressed air to enter the tank. When the compressor reaches "cut-out" pressure, the check valve "closes," allowing air pressure to remain inside the tank.
- Motor Overload Protector: This protects the motor from overheating. If the motor overheats, the compressor will shut down. To reset, the user must turn off the compressor, allow the motor to cool, and then turn it back on.
Maintenance Features:
Regular maintenance is crucial for the longevity and safe operation of the compressor. Key maintenance tasks include:
- Drain Tank: Condensation accumulates in the air tanks during operation. It is critical to drain the tanks daily or after each use to prevent rust and thinning of the steel tank. The drain valve (10) is used for this purpose. Failure to drain the tank can lead to rust, which can weaken the tank and potentially cause a rupture.
- Clean Compressor: The manual recommends blowing dirt and dust out of all air vents at least once a week to minimize the risk of eye injury. This should be done with ANSI Z87.1 approved eye protection.
- Repairs: Any repairs or modifications to the compressor should only be performed by a CRAFTSMAN authorized service center or a CRAFTSMAN authorized service technician. Unauthorized modifications can lead to serious injury or property damage.
- Storage: Before storing the air compressor, ensure the tank is drained and the unit is clean and dry.
The manual emphasizes several safety alerts using symbols and words:
- DANGER: Indicates an imminently hazardous situation that will result in death or serious injury if not avoided (e.g., DANGER: RISK TO BREATHING (Asphyxiation) due to carbon monoxide).
- WARNING: Indicates a potentially hazardous situation that could result in death or serious injury if not avoided (e.g., WARNING: Read all safety warnings and all instructions; WARNING: RISK OF FLYING OBJECTS; WARNING: RISK OF HOT SURFACES; WARNING: RISK OF INJURY FROM LIFTING; WARNING: RISK OF ELECTRICAL SHOCK; WARNING: RISK FROM MOVING PARTS; WARNING: RISK OF FALLING; WARNING: Risk of unsafe operation).
- CAUTION: Indicates a potentially hazardous situation that may result in minor or moderate injury if not avoided (e.g., CAUTION: RISK FROM NOISE).
- NOTICE: Indicates a practice not related to personal injury which, if not avoided, may result in property damage.
Users are advised to wear appropriate safety gear, including ANSI Z87.1 eye protection, hearing protection (ear plugs or muffs), and safety footwear. The compressor should always be operated in a well-ventilated area, away from flammable materials, and on a stable, level surface. Proper grounding is essential to prevent electric shock.
For any questions or comments, customers can call toll-free at 1-888-899-0146. For information about other Craftsman products, call 1-888-331-4569. Online registration and additional information are available at www.craftsman.com/registration or www.altonindustries.com/register. The product comes with a One Year Limited Warranty and a 90 Day Money Back Guarantee.
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