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SKU 66786 

for technical questions, please call 1-800-444-3353. 

Page 10

To PREVEnT ExPloSion:  

lubricate tool only with 

specified lubricants.  

lubricate air inlet using only 

pneumatic tool oil.  lubricate 

internal mechanism using 

only white lithium grease.  

other lubricants may damage 

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 op-

eration of the air-operated tool.

once a year after discharging con-

1. 

tents of the Tank, remove the drain 

Plug (24) to drain accumulated 

sludge. To reattach the Plug, wrap 

three turns of thread sealing tape 

(not included) on the Plug thread 

and secure in place.  do not over-

tighten.

Keep the outside of the Tank free of 

2. 

oil or grease.  Use only a mild soap 

and damp cloth when cleaning.  Do 

not use flammable or combustible 

solvents.
Before and during each use, inspect 

3. 

the Hose (13) for damage.  Do not 

allowed the used oil to surpass the 

Tank’s 20-gallon capacity.
After use, store in a dry, secure area 

4. 

out of reach of children.

Troubleshooting

Problem

Possible causes

likely Solutions

Decreased output.

Not enough air pressure and/

1. 

or air flow.

 

 

 

Blockage of hose.

2. 

Accumulated sludge.

3. 

Check for loose connections and make sure 

1. 

that air supply is providing enough air flow 

(CFM) at required pressure (PSI) to the 

tool’s air inlet.  

do not exceed maximum air 

pressure.

Gently blow air from Nozzle into Tube.

2. 

After draining the oil, remove Plug and 

3. 

evacuated sludge.

Housing heats 

during use.

Incorrect lubrication or not 

1. 

enough lubrication.
Worn parts.

2. 

Lubricate using air tool oil and grease 

1. 

according to directions.

Have qualified technician inspect internal 

2. 

mechanism and replace parts as needed.

Severe air 

leakage.

(Slight air leakage 

is normal, 

especially on older 

tools.)

Cross-threaded housing 

1. 

components. 

Loose housing. 

2. 

 

Damaged valve or housing.

3. 

Dirty, worn or damaged valve. 

4. 

Check for incorrect alignment and uneven 

1. 

gaps.  If cross-threaded, disassemble and 

replace damaged parts before use.
Tighten housing assembly.  If housing cannot 

2. 

tighten properly, internal parts may be 

misaligned.
Replace damaged components.

3. 

Clean or replace valve assembly.

4. 

 follow all safety precautions whenever diagnosing or servicing the 

tool.  disconnect air supply before service.

Summary of Contents for 66786

Page 1: ...manual Copyright 2009 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 fo...

Page 2: ...oided could result in death or serious injury CAUTION used with the safety 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 Pertaini...

Page 3: ...o high intensity noise is able to cause hearing loss Tool use and care Do not force the tool a Use the correct tool for the application The correct tool will do the job better and safer at the rate for which the tool is designed Disconnect the tool from the air b source before making any adjust ments changing accessories or storing the tool Such preventive safety measures reduce the risk of starti...

Page 4: ... explosion and serious injury to persons Save these instructions Symbols and Specific Safety Instructions Symbol Definitions 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 WARNING marking concerning Risk of Eye Injury Wear ANSI approved eye protection WARNING ...

Page 5: ...ice immediately and con tact a qualified service technician for repair WARNING The brass components 12 of this product contain lead a chemi cal known to the State of California to cause birth defects or other repro ductive harm California Health Safety code 25249 5 et seq Only use with accessories rated to 13 handle the forces exerted by this tool during operation Other accessories not designed fo...

Page 6: ...to support weight of tool To begin assembly slide one Fixed 2 Wheel 18 onto each end of the axle of the Tank 23 Lock Wheels into place using Washers 17 and Retain ing Rings 16 See Assembly Dia gram on page 12 If the Casters are not already at 3 tached to the Tank fasten one Swivel Caster 22 to each plate located on the base of the Oil Lift Slide on Spring Washer 20 Washer 21 and then thread Lockin...

Page 7: ...inlet of the tool Other com ponents such as a connector and quick coupler will make operation more efficient but are not required WARNING 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...

Page 8: ...dures To prevent serious injury Do not adjust or tamper with any control or component in a way not specifically explained within this manual Improper adjustment can result in tool failure or other serious hazards Work Piece and Work Area Set Up Designate a work area that is clean 1 and well lit The work area must not allow access by children or pets to prevent injury and distraction Route the air ...

Page 9: ...let Before transporting the Oil Lift open 11 the Lock Knob 3 and lower all the way Then lock Drain Tube in place by turning the Lock Knob Use the Handle 10 when moving 12 the Oil Lift from one location to an other Always grasp the Handle with two hands and only transport Oil Lift along flat level surfaces able to with stand the weight of the Oil Lift If the tool requires more force to 13 accomplis...

Page 10: ... area 4 out of reach of children Troubleshooting Problem Possible Causes Likely Solutions Decreased output Not enough air pressure and 1 or air flow Blockage of hose 2 Accumulated sludge 3 Check for loose connections and make sure 1 that air supply is providing enough air flow CFM at required pressure PSI to the tool s air inlet Do not exceed maximum air pressure Gently blow air from Nozzle into T...

Page 11: ...her the manufacturer or distributor makes any representation or warranty of any kind to the buyer that he or she is qualified to make any repairs to the product or that he or she is qualified to replace any parts of the product 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 t...

Page 12: ...SKU 66786 For technical questions please call 1 800 444 3353 Page 12 ASSEMBLY DIAGRAM 24 ...

Page 13: ...cidental or consequential damages so the above limitation of exclusion may not apply to you This warranty is express ly 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 com plaint...

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