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Item 66984 

For technical questions, please call 1-888-866-5797. 

Page 11

13.  Place socket (not included) over desired nut, 

hold handle firmly and gently squeeze Trigger.

14.  If tool requires more force to accomplish 

task in Forward or Reverse setting, verify 
that the tool receives sufficient, unobstructed 
airflow (CFM) and increase the pressure 
(PSI) output of regulator up to maximum air 
pressure rating of tool. 

CAUTION!  TO PREVENT TOOL AND 
ACCESSORY FAILURE, RESULTING IN 
INJURY: 
Do not exceed tool’s maximum air 
pressure rating (90 PSI).

 

If tool still does not have sufficient force at 
maximum pressure and sufficient airflow, 
then a larger tool may be required.

15.  When the nut is tightened or loosened, 

release the Trigger.  

16.  To prevent accidents, turn off tool, detach 

air supply, safely discharge any residual air 
pressure in tool, and release Trigger after 
use.  Clean external surfaces of tool with 
clean, dry cloth, and apply a thin coat of tool 
oil to the driver end.  Store indoors out of 
children’s reach.

User-Maintenance Instructions

  Procedures not specifically explained 

in this manual must be performed 
only by a qualified technician.

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION: Turn off 
tool, detach air supply, safely discharge any residual air pressure in tool, 

and release Trigger 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 problem corrected before further use.

TO PREVENT EXPLOSION:  Lubricate tool only with specified lubricants.  Lubricate 
the air inlet using only pneumatic tool oil.  Lubricate the internal mechanism using 
only white lithium grease.  Other lubricants may damage the mechanism and may be 
highly flammable, causing an explosion.

Cleaning, Maintenance, and Lubrication

Note:

  These procedures are in addition to the 

regular checks and maintenance explained as part 
of the regular operation of the air-operated tool.

1. 

Daily - Air Supply Maintenance: 

Every day, perform maintenance on the 
air supply according to the component 
manufacturers’ instructions. Lubricator’s 
oil level needs to be maintained and the 
moisture filter must be regularly drained.   
Performing routine maintenance on the air 
supply will allow tool to operate more safely 
and will also reduce wear on tool.

2. 

Quarterly (every 3 months) - Tool 
Disassembly, Cleaning, and Inspection: 

Have internal mechanism cleaned, inspected, 
and lubricated by a qualified technician. 

3. 

When storing, always store Impact Wrench 
in clean, dry and safe location out of reach 
of children.

Summary of Contents for CentralPneumatic 66984

Page 1: ...ence 21a When unpacking make sure that the product is intact and undamaged If any parts are missing or broken please call 1 888 866 5797 as soon as possible Copyright 2016 by Harbor Freight Tools All...

Page 2: ...us injury Save all warnings and instructions for future reference The term power tool in the warnings refers to your power tool Work Area Safety 1 Keep work area clean and well lit Cluttered or dark a...

Page 3: ...azards in the work area Power Tool Use and Care 1 Do not force the power tool Use the correct power tool for your application The correct power tool will do the job better and safer at the rate for wh...

Page 4: ...8 This product is not a toy Keep it out of reach of children 9 People with pacemakers should consult their physician s before use Electromagnetic fields in close proximity to heart pacemaker could ca...

Page 5: ...Pounds per square inch of pressure ft lb Foot pounds of torque BPM Blows per minute CFM Cubic Feet per Minute flow SCFM Cubic Feet per Minute flow at standard conditions NPT National pipe thread taper...

Page 6: ...rce for this tool 1 Incorporate a filter regulator with pressure gauge oiler in line shutoff valve and quick coupler for best service as shown in the air tool setup examples at the end of this section...

Page 7: ...t the air output is enough to properly power the tool but the output will not exceed the tool s maximum air pressure at any time Adjust the pressure gradually while checking the air output gauge to se...

Page 8: ...ging tool or work piece C Regulator Adjusts air pressure to tool D Lubricator optional For air tool lubrication E Coupler and Plug Provides each connections F Leader Hose optional Increases coupler li...

Page 9: ...all Valve To drain moisture from system G Branch Air Line 1 2 minimum recommended Brings air to point of use H Filter Prevents dirt and condensation from damaging tool or work piece I Air Cleaner Drye...

Page 10: ...to reach work area without creating a tripping hazard or exposing air hose to possible damage Also avoid sharp bends and do not place items on hose during use 3 The air hose must be long enough to rea...

Page 11: ...l detach air supply safely discharge any residual air pressure in tool and release Trigger before performing any inspection maintenance or cleaning procedures TO PREVENT SERIOUS INJURY FROM TOOL FAILU...

Page 12: ...hose connection air leaks 6 Have qualified technician clean and lubricate mechanism Install in line filter in air supply as stated in Initial Set Up Air Supply 7 Replace all vanes Housing heats during...

Page 13: ...Item 66984 For technical questions please call 1 888 866 5797 Page 13...

Page 14: ...IN FACT THE MANUFACTURER AND OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BY THE BUYER THE BUYER ASSUMES A...

Page 15: ...13 Housing 1 14 Bearing 1 15 Front End Plate 1 16 Pin 1 17 Rotor 1 18 Vane 6 19 Cylinder 1 20 Rear End Plate 1 21 Pin 1 22 Bearing 1 Part Description Qty 23 Gasket 1 24 Rear End Plate 1 25 Gasket 4 26...

Page 16: ...es 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 ta...

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