Craftsman 921.1531 owner manual Installation & Assembly

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Installation & Assembly

The air compressor should be turned off and unplugged from the power source before any maintenance is performed as well as the air bled from the tank and the unit allowed time to cool. Personal injuries could occur from moving parts, electrical sources, compressed air or hot surfaces. The regulator assembly must be attached before use. Failure to assemble correctly could result in leaks and possible injury. If unsure of assembly instructions or you experience difficulty in the assembly please call your local service department for further instruction.

Quick Connect Assembly

1.Before assembly be sure that the Quick Connect (Q.C.) threads have a sealant applied from the factory to prevent leaks around the threads. If no sealant is

present, wrap the threaded portion with

Teflon tape.

2.Attach the Q.C. assembly to the air compressor by aligning the Q.C. threads to the regulator on the manifold. Be certain to align the threads before tightening to prevent thread damage.

3.The assembly should turn clockwise 1 to 1.5 revolutions

after hand-tightening with a 13/16ths size wrench. To prevent damage and leaks, do not

over-tighten.

To Install the Air Intake Filter

Remove the air intake filter from the

poly bag and thread it onto the head of the compressor as shown.

Do not attempt to start the air compressor without first adding oil to the crankcase. Serious damage can result unless filled with oil. The pump is shipped without oil from the factory.

Only use non-detergent oils since multi-viscosity motor oils leave carbon deposits on pump components, thus reducing performance and compressor life.

Drain the tank to release all tank

air

_

_.=t_{ '_L

pressure before removing the oil fill cap.

 

 

Be sure the air vent in the oil fill cap (see

 

 

figure to the right) is free from debris.

 

 

If air vent is blocked, pressure can build

 

 

in crankcase causing damage to the

 

 

compressor and possible personal injury.

 

 

Lubrication

and Oil

 

 

 

Remove the

oil fill cap by turning

it

_

/_-,,,

counter-clockwise by hand. Fill the compressor pump with an air compressor oil such as SAE-30 non-detergent (API

CG/CD Heavy Duty) oil at slow intervals until the oil reaches the center of the red

circle in the sight glass ( see figure above).

Use SAE-10 during extreme winter conditions.

Location of the Air Compressor

The air compressor should always be located in a clean, dry, and well ventilated environment. The unit should have at minimum, 12 inches of space on each side. The air filter intake should be free of any debris or obstructions. Check the air filter on a daily basis to be sure it is clean and in working order.

Grounding instructions

This product should be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current. This product is equipped with a cord having a grounding wire with an appropriate grounding plug. (See the figure below.) The plug must be plugged into an outlet that is properly installed and grounded in accordance with all local codes and ordinances.

Check with a qualified electrician or service

personnel

if these

 

instructions are not

 

completely

understood

Outlet

 

or if in doubt as to

Grounded

whether

the tool is

Grounding Pin

properly

grounded.

 

improper installation of the grounding plug will result in a risk of electric shock. If repair or replacement of the cord or plug is necessary, do not connect the grounding wire to either flat blade terminal. The wire with insulation having an outer surface that is green with or without yellow stripes is the grounding wire. Check with a qualified electrician or serviceman if the grounding instructions are not completely understood, or if in doubt as to whether the product is properly grounded. Do not modify the plug provided; if it will not fit the outlet, have the proper outlet installed by a qualified electrician.

This product is for use on a circuit having a nominal rating of 120 volts and is factory-equipped with a specific electric cord and plug to permit connection to a proper electric circuit. Make sure that the product is connected to an outlet having the same configuration as the plug. No adapter should be used with this product. If the product must be reconnected for use on a different type of electric circuit, qualified service personnel should make the reconnection.

Extension Cords

Use only a 3-wireextension cord that has a 3-blade grounding plug, and a 3-slot receptacle that will accept the plug on the product. Make sure your extension cord is in good condition. When using an extension cord, be sure to

use one heavy enough to carry the current your product will draw. Cords must not exceed 25 feet and No. 12 AWG size

must be used. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating.

Break In Procedures

No break in procedure is required by the user. This

product is factory tested to ensure proper operation and

performance.

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Contents AIR Compressor Table of Contents Safety Instructions Important Safety Instructions and GuidelinesSpecifications GlossaryDuty Cycle Outlet Tube Oil Fill Cap Pressure Relief Tube Parts & FeaturesAir Intake Filter Tank Pressure GaugeInstallation & Assembly Operating Procedures Daily Start-Up ProceduresDally Shut-Down Procedures Items to Check/Change MaintenanceStorage Before eachTroubleshooting Guide ProblemCraftsman Air Compressor Model Parts List J332NPTKunsan Contenido Instrucciones de seguridad Instrucciones y pautas de seguridad importantesEspecificaciones GlosarioCiclo de trabajo Retenci6n Partes y caracterfsticasFiltro de aire Vdlvula de alivio de presi6nInstalacibn y ensamblaje De conexi6n RpidaProcedimientos de operaci6n Procedimiento diario de arranqueProcedimiento diario de apagado Revisar o ¢ambiar MantenimientoAlmacenamiento Cambio de aceiteProblema Diagnbstico y correccibn de fallasYour Home Www,sears.com

921.1531 specifications

The Craftsman 921.1531 is a notable addition to the realm of handheld tools, particularly designed for enthusiasts and professionals alike who seek efficiency and performance. This powerful heat gun is celebrated for its versatility, making it suitable for a variety of tasks including paint stripping, thawing frozen pipes, drying damp surfaces, and even crafting projects.

One of the key features of the Craftsman 921.1531 is its dual temperature settings. Users can select from high and low heat options, allowing for precise control depending on the requirements of the job at hand. The low setting, typically around 750°F, is perfect for delicate applications such as loosening adhesive or drying paint, while the high setting—reaching up to an impressive 1,000°F—enables heavy-duty work such as removing old paint from wood surfaces or bending plastic.

The lightweight and ergonomic design of the Craftsman 921.1531 further enhances usability. Weighing in at just over a pound, this heat gun is easy to handle and minimizes user fatigue during extended use. The comfortable grip ensures that the tool can be utilized for prolonged periods without discomfort, making it an excellent choice for both DIY enthusiasts and professionals who demand precision in their work.

In terms of safety, the Craftsman 921.1531 includes built-in features to safeguard the user. The integrated stand allows users to position the heat gun safely during operation, preventing accidental burns or damage. Additionally, the heat gun is designed to quickly cool down after use, enhancing safety and prolonging the lifespan of the tool.

Another vital aspect of the Craftsman 921.1531 is its ease of use. The simple design promotes straightforward operation, with an intuitive on/off switch that allows for immediate readiness and control. This makes it accessible to users of all skill levels, from seasoned craftsmen to novices tackling home improvement projects.

Overall, the Craftsman 921.1531 stands out for its combination of features and user-friendliness. With reliable performance, dual temperature settings, a lightweight design, and safety features, it remains a versatile tool in any workshop. Whether for small home repairs or larger projects, this heat gun is equipped to handle a wide array of tasks, making it a must-have for anyone serious about DIY or professional work.