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PAGE 7

8.

NOTE:

 With the Air Compressor turned on, the operation is automatic and under 

the control of the automatic switches inside the box under the Power Switch (1A).

NEVER open the power switch box or adjust the controls within.

To Adjust The Air Output To The Pneumatic Tool:

1.

NOTE:

 When adjusting the air pressure being forwarded to the pneumatic tool, 

you will need to compare the pressure readings of both the Tank Pressure Gauge 
(3A) and the Tool Pressure Gauge (4A).  The reading on the Tank Pressure Gauge 
dictates the maximum/minimum air pressure at which the Tool Pressure Gauge may 
also be set.

2.

With the Air Compressor running, and the air hose and pneumatic tool hooked up 
to the Air Compressor, pull up on the Tool Pressure Adjuster (2A).  Turn the Tool 
Pressure Adjuster 

clockwise to increase

 the air output to the tool, up to the work-

ing air pressure (115 PSI) as indicated on the Tank Pressure Gauge (3A).

3.

Turn the Tool Pressure Adjuster (2A) 

counterclockwise to decrease

 the air output 

to the tool, down to the minimum rated pressure (0 PSI) as indicated on the Tank 
Pressure Gauge (3A).

To Use The Tank Pressure Relief Valve:

1.

The Tank Pressure Relief Valve Ring (5A) is used when decompression is needed 

quickly and efficientl

y.

2.

To decompress the Air Tank (9A) pressure, rotate the “ON/OFF” Power Switch (1A) 
up to the vertical position to turn off the Air Compressor.

3.

Pull out on the Tank Pressure Relief Valve Ring (5A) to immediately release air 
pressure in the Air Tank (9A).

To Empty Air And Condensation From The Tank:

1.

The Water Drain Valve (10A) is located underneath the Air Tank (9A), and should 
be used daily to release all trapped moisture through this valve.  The Water Drain 
Valve will also eliminate condensation that may cause Air Tank corrosion.

2.

WARNING: Do not open the Water Drain Valve (10A) so that more than four 
threads are showing.

3.

Rotate the “ON/OFF” Power Switch (1A) up to the vertical position to turn off the Air 
Compressor.  Then, unplug the Air Compressor’s Power Cord from the electrical 
outlet.

4.

Slowly and carefully unscrew (no more than four threads) the Water Drain Valve 
(10A) until the compressed air and condensation begins to be released from the Air 
Tank (9A).  Allow 

sufficient

 time for all of the air and condensation to escape from 

the Air Tank.  

Then, firmly retighten the 

Water Drain Valve.

Summary of Contents for APC4017

Page 1: ...APC4017 Owner s Manual 20 Gallon Vertical AIR COMPRESSOR HAVE QUESTIONS OR NEED SERVICE DO NOT RETURN TO STORE 888 896 6881 Please read and save these instructions www allpoweramerica com TM...

Page 2: ...S AND PRECAUTIONS 1 KEEP WORK AREA CLEAN AND DRY Cluttered damp or wet work areas invite injuries 2 KEEP CHILDREN AWAY FROM WORK AREA Do not allow children to handle this product 3 KEEP IDLE EQUIPMENT...

Page 3: ...accessories are available from Harbor Freight Tools 12 MAINTAIN THIS PRODUCT WITH CARE Keep this product clean and dry for better and safer performance 13 MAINTENANCE For your safety service and main...

Page 4: ...il trash and other debris Do not use the Air Compressor in areas near ammable chemicals dusts and vapors 6 AVOID INJURY Never direct the Air Flow Valve 6A at people or animals See Assy Diagram A 7 DO...

Page 5: ...l level should always be at the maximum level red line on the Oil Window See Figure C and Assy Diagram B UNPACKING When unpacking check to make sure all the parts shown on the Parts Lists on pages 9 a...

Page 6: ...F position 3 Connect the air hose not provided to the Air Flow Valve 6A of the Air Com pressor Then connect the other end of the air hose to the pneumatic tool not provided that is to be used 4 Note A...

Page 7: ...ated on the Tank Pressure Gauge 3A To Use The Tank Pressure Relief Valve 1 The Tank Pressure Relief Valve Ring 5A is used when decompression is needed quickly and ef ciently 2 To decompress the Air Ta...

Page 8: ...ank 9A of all air and moisture to prevent corrosion To do so slowly and carefully unscrew no more than four threads the Water Drain Valve 10A until the compressed air and condensation begins to be rel...

Page 9: ...Air Filter 1 8A Air Flow Lid 1 9A Air Tank 1 10A Water Drain Valve 1 Part Description Qty 11A Quick Release Coupler 1 12A Rubber Wheel with Bolt 2 13A Washer 2 14A Nut 2 15A Fitting 1 16A Oil Drain Pl...

Page 10: ...er 1 13B Crankshaft Retainer 2 14B Breather Valve 1 15B Connecting Rod 1 16B Gasket 1 17B Bolt 6 18B Front Cover 1 Part Description Qty 19B Gasket 1 20B Oil Window 1 21B Crankshaft Bolt 1 22B Cranksha...

Page 11: ...th regard to this limited warranty shall be final This warranty gives you specific legal rights and you may also have other rights which vary from state to state RESPONSIBILITY OF ORIGINAL PURCHASER I...

Page 12: ...red oil adjustments or other installation and start up costs Expendable parts or accessories supplied with the product which are expected to become inoperative or unusable after a reasonable period of...

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