Craftsman 919.72458 Maintenance, Customer Responsibilities, To Check Safety Valve, To Drain Tank

Models: 919.72458

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MAINTENANCE

Customer Responsibilities

 

Before

Daily or

 

 

 

 

each

after

 

Frequently

Yearly

 

each

 

 

use

 

 

 

 

use

 

 

 

 

 

 

 

 

Check Safety Valve

 

 

 

 

Drain Tank

 

 

 

 

Air Filter

 

 

 

● (1)

 

Air compressor pump intake

 

 

 

 

and exhaust valves

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1- more frequent in dusty or humid conditions

 

 

 

 

 

 

 

 

Unit cycles automatically when

power is on. When performing maintenance, you may be exposed to voltage sources, compressed air, or moving parts. Personal injuries can occur. Before performing any maintenance or repair, disconnect power source from the compressor and bleed off all air pressure.

To ensure efficient operation and longer life of the air compressor unit, a routine maintenance schedule should be prepared and followed. The following routine maintenance schedule is geared to an unit in a normal working environment operating on a daily basis. If necessary, the schedule should be modified to suit the conditions under which your compressor is used. The modifications will depend upon the hours of operation and the working environment. Compressor units in an extremely dirty and/or hostile environment will require a greater frequency of all maintenance checks.

To Check Safety Valve

If the safety valve does not work

properly, over-pressurization may occur, causing air tank rupture or an explosion.

1.Before starting compressor, pull the ring on the safety valve to make sure that the safety valve operates freely. If the valve is stuck or does not operate smoothly, it must be replaced with the same type of valve.

To Drain Tank

1.Set the On/Auto/Off lever to "OFF".

2.Pull the regulator knob out and turn counterclockwise to set the outlet pressure to zero.

3.Remove the air tool or accessory.

4.Pull ring on safety valve allowing air to bleed from the tank until tank pressure is approximately 20 psi. Release safety valve ring.

5.Drain water from air tank by opening drain valve (counter- clockwise) on bottom of tank.

Water will condense in the air

tank. If not drained, water will corrode and weaken the air tank causing a risk of air tank rupture.

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Craftsman 919.72458 owner manual Maintenance, Customer Responsibilities, To Check Safety Valve, To Drain Tank