Craftsman evolv 921.167500 Operator's Manual download pdf (Page 9)

Storage

For storing the air compressor, be sure to do the following:

1. Turn the unit off and unplug the power cord

from the receptacle.

2. Remove all air hoses, accessories, and air tools

from the air compressor.

3. Perform the daily Maintenance Schedule as

described in the table above.

4. Open the drain valve to bleed all air from the

tank.

5. Close the drain valve.

6. Store the air compressor in a clean and dry

location.

7. Unplug compressor, wrap the power cord on

handle.

Troubleshooting Guide

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.

PROBLEM

Unusually long air tank pump up and

recovery times.

Air leaks at the check valve or at the

pressure relief valve.

Air leaks between head and cylinder.

Air leak from safety valve.

Pressure reading on the regulated

pressure gauge drops when an acces-

sory is used.

Excessive tank pressure.

Motor will not start.

POSSIBLE CORRECTION

Remove air filter cap and inspect air filter element for restrictions.

(See air filter maintenance procedure page 6)

A defective check valve results in a constant air leak at the pres-

sure relief valve when there is pressure in the tank and the com-

pressor is shut off. Drain the tank, then remove and clean or

replace the check valve.

Be sure of proper torque on head bolts. If leak remains, contact

Sears or another qualified service dealer.

Operate the safety valve manually by pulling on the ring. If the

valve continues to leak when in the closed position, it should be

replaced.

If there is an excessive amount of pressure drop when the acces-

sory is used, replace the regulator.

Adjust the regulated pressure under flow conditions (while acces-

sory is being used). It is normal for the gauge to show minimal

pressure loss during initial use of the tool.

Move the Auto-On/Off switch to the Off position. If the unit

doesn't shut off, unplug it from the power source and contact

Sears or another qualified service dealer.

Make sure the Thermal Overload Switch on the back of the motor

is pushed in.

Make sure power cord is plugged in and the switch is on. Inspect

for the proper size fuse in your circuit box. If the fuse was tripped,

reset it and restart the unit. If repeated tripping occurs, replace

the check valve or contact Sears or another qualified service

dealer.

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Craftsman evolv 921.167500 Operator's Manual Page 9

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