Craftsman 919.166442 User Manual

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Owner's Manuam

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PermanentJy Lubricated

Tank Mounted

AIR COMPRESSOR

ModeJ No.

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Safety Guidelines

Assembly

Operation

Maintenance

Service and Adjustments

Repair Parts

CAUT|ON: Read the Safety Guidelines

and All instructions CarefulIy Before

Operating.

Sears, Roebuck and Co., Hoffman Estates, IL (}0179 U.S.A.

Visit our Oraftsman website: www, sears,com/craftsman

A13640 R_v.0 11/16/0s

Questions and Answers:

P
Paul SmithJul 28, 2025
What to do if my Craftsman 919.166442 Air Compressor motor will not run?
- J
  jessicabaileyJul 28, 2025
  If your Craftsman Air Compressor motor isn't running, first check your fuse box for a blown fuse and replace it if needed. Reset the circuit breaker. Ensure you're using the correct type of fuse, a time delay fuse is recommended. Check the extension cord and make sure it is the correct length and gauge. Disconnect other appliances or use a dedicated branch circuit. Inspect wiring connections inside the terminal box. If problems persist, have a Trained Service Technician check it.
R
Rebecca FinleyAug 2, 2025
Why is my Craftsman 919.166442 not supplying enough air?
- B
  Bryan ClarkAug 2, 2025
  Your Craftsman Air Compressor may not be supplying enough air due to prolonged excessive use, or perhaps the compressor isn't large enough for your air requirements. Other potential causes include a hole in the hose, a restricted check valve, or air leaks. Try decreasing air usage or check the accessory's air requirement and consider a larger compressor if needed. Inspect and replace the hose if necessary. Remove and clean the check valve, or replace it. Tighten any loose fittings to prevent air leaks.
T
tanyamillerAug 6, 2025
What to do if Craftsman 919.166442 Air Compressor regulator knob has continuous air leak?
- B
  Brandi HunterAug 6, 2025
  If the regulator knob on your Craftsman Air Compressor has a continuous air leak, it indicates that the regulator is damaged and needs to be replaced.
I
Ian BrownAug 10, 2025
What to do if Craftsman Air Compressor regulator will not shut off air outlet?
- A
  Alexander MendezAug 10, 2025
  If the regulator on your Craftsman Air Compressor won't shut off the air outlet, this indicates that the regulator is damaged and needs to be replaced.
S
stephaniebellAug 14, 2025
Why is my Craftsman Air Compressor safety valve popping off?
- M
  Michael DavisAug 14, 2025
  The safety valve on your Craftsman Air Compressor might be popping off because the pressure switch isn't shutting off the motor when the compressor reaches its cut-out pressure, or the pressure switch cut-out is set too high. Move the On/Auto/Off lever to the "Off" position; if the unit still doesn't shut off, contact a Trained Service Technician.
A
Anthony GarciaAug 19, 2025
What to do if there are air leaks at the fittings of my Craftsman 919.166442 Air Compressor?
- V
  Victoria JohnsonAug 19, 2025
  If you notice air leaks at the fittings of your Craftsman Air Compressor, tighten the fittings where you hear air escaping, but do not overtighten. Use a soapy water solution to check for leaks. If the air tank itself is leaking, it must be replaced; do not attempt to repair it due to the risk of bursting. If the safety valve is leaking, operate it manually by pulling on the ring; if the leak persists, the valve should be replaced. For air leaks in the air tank or at air tank welds, contact a Trained Service Technician.
G
Gary BlairAug 23, 2025
Why does the pressure drop on my Craftsman Air Compressor when using accessories?
- T
  Timothy JohnsonAug 23, 2025
  It is normal for some pressure drop to occur on your Craftsman Air Compressor when an accessory is in use. However, if the pressure drop is excessive, adjust the regulator following the instructions in the "Description of Operation" paragraph in the Operation section. Remember to adjust the regulated pressure under flow conditions, meaning while the accessory is being used.

Craftsman 919.166442 Specifications

General

Model Number	919.166442
Max Pressure	150 PSI
Tank Capacity	6 Gallons
Power Source	Electric
Weight	38 lbs
Max PSI	150 PSI
Voltage	120V
Motor	Oil-free
SCFM at 90 PSI	2.6 SCFM
HP	1.5 HP

Summary

Safety Guidelines and Definitions

Important Safety Instructions

Key safety instructions and definitions of hazard symbols for safe operation.

Hazard: Risk of Explosion or Fire

Details risks of fire and explosion from sparks and improper ventilation.

Hazard: Risk of Bursting

Explains tank bursting risks due to rust, modifications, or over-pressurization.

Hazard: Risk from Flying Objects

Warns about injury from compressed air streams and propelled particles.

Hazard: Risk of Electrical Shock

Covers dangers of electric shock from improper use, repairs, and grounding.

Hazard: Risk to Breathing

Addresses risks of inhaling contaminated air or sprayed materials.

Hazard: Risk of Burns

Details risks of touching hot metal parts on the compressor.

Hazard: Risk from Moving Parts

Warns about injuries from contact with moving components like pulleys and belts.

Hazard: Risk of Falling

Advises on stable positioning to prevent the compressor from falling.

Hazard: Risk of Injury or Damage When Transporting

Covers risks associated with transporting the compressor, like oil leaks.

Hazard: Risk of Unsafe Operation

Emphasizes following instructions, staying alert, and not defeating safety features.

Assembly

Unpacking

Instructions for removing the unit from its packaging and discarding materials.

Installation

How to Set Up Your Unit

Guidance on locating the compressor and ensuring proper ventilation and grounding.

Grounding Instructions

Detailed steps and warnings for safely grounding the air compressor.

Extension Cords

Recommendations and specifications for using extension cords with the compressor.

Voltage and Circuit Protection

Information on electrical requirements, circuit protection, and fuse types.

Operation

Know Your Air Compressor

Familiarization with controls and components like gauges, switches, and valves.

Description of Operation

Explains the function of the On/Auto/Off switch, pressure switch, safety valve, and regulator.

Air Compressor Pump and Check Valve

Details the function of the pump and the check valve in the air system.

How to Use Your Unit

Procedures for stopping, break-in, and preparing the unit for start-up.

How to Start

Step-by-step guide on starting the air compressor and setting the output pressure.

Maintenance

Customer Responsibilities

Outlines user tasks like checking the safety valve and draining the tank.

To Drain Tank

Detailed instructions on how to properly drain condensed water from the air tank.

To Check Safety Valve

Procedure for testing the safety valve to ensure it functions correctly.

Service and Adjustments

To Replace or Clean Check Valve

Step-by-step guide for removing, cleaning, or replacing the check valve.

To Replace Regulator

Instructions for removing and replacing the regulator manifold and associated components.

Storage

Storage Preparation

Steps to prepare the compressor for storage, including draining and protecting components.

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