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HIGH-VOLUME 12VDC  

AIR COMPRESSOR

Model

66399

SET UP AND OPERATING INSTRUCTIONS

Visit our website at: http://www.harborfreight.com

 Read this material before using this product. 

Failure to do so can result in serious injury. 

SAVE THIS MANUAL.

Copyright

©

 2008 by Harbor Freight Tools

®

.  All rights reserved.  No portion of this manual or any artwork 

contained herein may be reproduced in any shape or form without the express written consent of 

Harbor Freight Tools.  Diagrams within this manual may not be drawn proportionally.  Due to continuing 

improvements, actual product may differ slightly from the product described herein.  Tools required for 

assembly and service may not be included.

For technical questions or replacement parts, please call 1-800-444-3353.

Revised Manual 10e

Summary of Contents for Central Pneumatic 66399

Page 1: ...ghts reserved No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools Diagrams within this manual may not be drawn proportionally Due to continuing improvements actual product may differ slightly from the product described herein Tools required for assembly and service may not be included For techn...

Page 2: ...ety alert symbol indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE is used to address practices not related to personal injury CAUTION without the safety alert symbol is used to address practices not related to personal injury IMPORTANT SAFETY INSTRUCTIONS INSTRUCTIONS PERTAINING TO A RISK OF FIRE ELECTRIC SHOCK OR INJURY TO PERSONS WARNING THE ME...

Page 3: ...he tool on or off Any tool that cannot be controlled with the switch is dangerous and must be repaired c Disconnect the tool from the air source before making any adjust ments changing accessories or stor ing the tool Turn the switch to its off position and disconnect from the battery d Store the tool when it is idle out of reach of children and other untrained persons A tool is dangerous in the h...

Page 4: ...ommon sense and caution are factors which cannot be built into this product but must be supplied by the operator 4 WARNING Some dust created by power sanding sawing grinding drilling and other construction activities con tains chemicals known to the State of California to cause cancer birth defects or other reproductive harm Some ex amples of these chemicals are Lead from lead based paints Crystal...

Page 5: ... 0 9 SCFM 90 PSI Rated Air Pressure 0 115 Maximum Power 12VDC 30 AMPS Permanently Lubricated Do not add oil or any other lubricant INITIAL TOOL SET UP ASSEMBLY Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product Note For additional information regarding the parts listed in the followi...

Page 6: ...ir hose must be long enough to reach the work area with enough extra length to allow free movement while working General Assembly and Operating Instructions 1 Set tool on a dry flat level surface 2 To prevent accidents turn the On Off Switch 25 to the OFF position 3 Attach the quick coupler of coiled Air Hose 59 to male connector at the end of Rubber Hose 53 4 Fig 1 Air House 59 Coupler Collar Mal...

Page 7: ...d pressure is reached 13 Stop the compressor by clicking the On Off Switch to its OFF position 14 Remove the Air Nozzle by unthreading it from the valve stem NOTE In the case of a football or soccer ball pull the Needle Nozzle 63 out of the ball valve orifice NOTE After disconnecting the Compres sor it is advisable to verify tire pressure with a tire pressure gauge not included NOTE Remember to re...

Page 8: ... to its off position before performing any inspection maintenance or cleaning procedures TO PREVENT SERIOUS INJURY FROM TOOL FAILURE Do not use damaged equipment If abnormal noise vibration or leaking air occurs have the problem corrected before further use Cleaning Maintenance and Lubrication Note These procedures are in addition to the regular checks and maintenance explained as part of the regu...

Page 9: ... into place with screws Troubleshooting Problem Possible Causes Likely Solutions Decreased output 1 Not enough air pressure and or air flow 2 Blocked air inlet Filter 3 3 Air leaking from loose housing or connections 4 Mechanism contaminated 1 Check for loose connections 2 Clean air inlet screen of buildup 3 Make sure housing and connections are properly assembled and tight 4 Have qualified techni...

Page 10: ...et Valve Slice 1 34 Rivet 1 35 Cylinder Liner 1 Part Description Qty 36 Seal Ring 1 37 Air Storage Cap 1 38 Seal Ring 2 39 Air Exhaust 2 40 Rivet 2 41 Seal Ring 1 42 Radiation Cover 1 43 Cylinder Cover 1 1 44 Spring Washer 4 45 Screw 5x50 4 46 Cylinder Cover 2 1 47 Screw 4x12 1 48 Triangle Bracket 1 1 49 Air Hose 1 50 Handle 1 51 Triangle Bracket 2 1 52 Air Hose Connector 1 53 Rubber Hose 1 54 Air...

Page 11: ...Page 11 For technical questions please call 1 800 444 3353 SKU 66399 ASSEMBLY DIAGRAM ...

Page 12: ... 90 days from the date of purchase This warranty does not apply to damage due directly or indirectly to misuse abuse negligence or accidents repairs or alterations outside our facilities criminal activity improper installation normal wear and tear or to lack of maintenance We shall in no event be liable for death injuries to persons or property or for incidental contingent special or consequential...

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