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Limited 90 Day Warranty

Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards, 

and warrants to the original purchaser that this product is free from defects in materials and workmanship for the 

period of 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 damages arising from the use of 

our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the 

above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER 

WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transportation charges 

prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise. 

If our inspection verifies the defect, we will either repair or replace the product at our election or we may 

elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will 

return repaired products at our expense, but if we determine there is no defect, or that the defect resulted 

from causes not within the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

3491 Mission Oaks Blvd.  •  PO Box 6009  •  Camarillo, CA 93011  •  (800) 444-3353

Summary of Contents for 68028

Page 1: ...ue to continuing improvements actual product may differ slightly from the product described herein Tools required for assembly and service may not be included When unpacking make sure that the product is intact and undamaged If any parts are missing or broken please call 1 800 444 3353 as soon as possible Save This Manual Keep this manual for the safety warnings and precautions assembly operating ...

Page 2: ...ded could result in minor or moderate injury Addresses practices not related to personal injury Symbol Property or statement PSI Pounds per square inch of pressure CFM Cubic Feet per Minute flow SCFM Cubic Feet per Minute flow at standard conditions NPT National pipe thread tapered NPS National pipe thread straight WARNING marking concerning Risk of Eye Injury Wear ANSI approved safety goggles wit...

Page 3: ...lothes jewelry or long hair increases the risk of injury to persons as a result of being caught in moving parts c Avoid unintentional starting Be sure the trigger is released before connecting to the air supply Do not carry the tool with your finger on the trigger or connect the tool to the air supply with the trigger pressed d Do not overreach Keep proper footing and balance at all times Proper f...

Page 4: ...ng Many accidents are caused by poorly maintained tools There is a risk of bursting if the tool is damaged h Use only accessories that are identified by the manufacturer for the specific tool model Use of an accessory not intended for use with the specific tool model increases the risk of injury to persons i Use only those fasteners listed in the Specifications chart of this manual Fasteners not i...

Page 5: ...deways during firing causing them to exit the workpiece at an unexpected point causing personal injury 18 Transport tool safely Always disconnect air supply when moving the tool Carry the tool by the handle and avoid contact with the trigger 19 Hold tool away from head and body During operation the tool may kick back causing injury 20 Do not fire fasteners into a workpiece that has people utility ...

Page 6: ...r 4 Use tools with the lowest vibration when there is a choice between different processes 5 Include vibration free periods each day of work 6 Grip tool as lightly as possible while still keeping safe control of it Let the tool do the work 7 To reduce vibration maintain tool as explained in this manual If abnormal vibration occurs stop immediately SAVE THESE INSTRUCTIONS Functional Description Spe...

Page 7: ...TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION Do not install a female quick coupler on the tool Such a coupler contains an air valve that will allow the air tool to retain pressure and operate accidentally after the air supply is disconnected Note Air flow and therefore tool performance can be hindered by undersized air supply components 3 The air hose must be long enough to reach the work a...

Page 8: ...lter Prevents dirt and condensation from damaging tool or work piece C Regulator Adjusts air pressure to tool D Lubricator optional For air tool lubrication E Coupler and Plug Provides quick connection and release F Leader Hose optional Increases coupler life G Air Cleaner Dryer optional Prevents water vapor from damaging work piece H Air Adjusting Valve optional For fine tuning airflow at tool SA...

Page 9: ...e 3 4 minimum recommended Distributes air to branch lines F Ball Valve To drain moisture from system G Branch Air Line 1 2 minimum recommended Brings air to point of use H Air Hose Connects air to tool I Filter Prevents dirt and condensation from damaging tool or work piece J Regulator Adjusts air pressure to tool K Lubricator optional For air tool lubrication L Coupler and Plug Provides quick con...

Page 10: ...ld only fire again if the trigger is released and squeezed again The Tool should not fire if the Safety Nosepiece is not pressed against an object Single Sequential Safety Trip Mechanism Testing Procedure TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION Empty the tool before this procedure Point the tool at a piece of scrap wood when testing 1 Disconnect the tool from the air supply 2 Empty the...

Page 11: ...djust Exhaust Cover to direct as desired 5 To fire a nail place the nose of the Nailer on the workpiece The Nailer should not fire if the Safety is not depressed Once the Safety is depressed gently and briefly squeeze the Trigger once to fire one nail Release the Trigger Do not fire repeatedly nails could bounce off on one another damaging the workpiece or causing personal injury 6 If nails are no...

Page 12: ...ing misalignment or binding of moving parts cracked or broken parts and any other condition that may affect its safe operation 2 Daily Air Supply Maintenance Every day perform maintenance on the air supply according to the component manufacturers instructions Maintain the lubricator s oil level Drain the moisture filter regularly Performing routine maintenance on the air supply will allow the tool...

Page 13: ...g enough air flow CFM and pressure PSI to the tool s air inlet Do not exceed maximum air pressure Frequent jamming Incorrect fastener type Confirm fastener diameter type length angle and collation type Correct as needed Severe air leakage Slight air leakage is normal especially on older tools 1 Cross threaded housing components 2 Loose housing 3 Damaged valve or housing 4 Dirty worn or damaged val...

Page 14: ...rive guide cover 1 30 Guide screw 1 31 Safety 1 32 Safety tip 1 33 Retainer 2 34 Pin 3x30 1 35 Adjusting seat 1 36 Safety spring 1 37 Pushing stem 1 38 Adjusting screw 1 39 Adjusting bolt 1 40 Sealing gasket 1 41 Air valve sealing ring 1 Part Description Qty 42 Sleeve seat 1 43 O ring 16x1 6 1 44 Air valve sleeve 1 45 O ring 6 1x1 8 1 46 O ring 6 4x2 1 47 O ring 9x1 8 1 48 Air valve spring 1 49 Ai...

Page 15: ...Page 15 For technical questions please call 1 800 444 3353 Item 68028 68068 Assembly Diagram SAFETY OPERATION MAINTENANCE SETUP ...

Page 16: ... so the above limitation of exclusion may not apply to you THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS To take advantage of this warranty the product or part must be returned to us with transportation charges prepaid Proof of purchase date and an explanation of the complaint must accompany the merchandise If ...

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