Harbor Freight Tools Impact Driver 95141 User Manual

HEAVY DUTY TWIN HAMMER  
3/4” IMPACT WRENCH  
Model 95141  
ASSEMBLY AND OPERATING INSTRUCTIONS  
Due to continuing improvements, actual product may differ slightly from the product described herein.  
®
3491 Mission Oaks Blvd., Camarillo, CA 93011  
TO PREVENT SERIOUS INJURY,  
READ AND UNDERSTAND ALL WARNINGS  
AND INSTRUCTIONS BEFORE USE.  
®
©
Copyright 2006 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.  
For technical questions, please call 1-800-444-3353.  
 
tools in the presence of flammable gases or liquids.  
5.  
Keep children away. Children must never be allowed in the work area. Do not  
let them handle machines, tools, extension cords, or air hoses.  
6.  
7.  
Store idle equipment. When not in use, tools must be stored in a dry location  
to inhibit rust. Always lock up tools and keep out of reach of children.  
Use the right tool for the job. Do not attempt to force a small tool or attachment  
to do the work of a larger industrial tool. There are certain applications for which  
this tool was designed. It will do the job better and more safely at the rate for  
which it was intended. Do not modify this tool, and do not use this tool for a  
purpose for which it was not intended.  
8.  
Dress properly. Do not wear loose clothing or jewelry as they can be caught in  
moving parts. Protective, electrically non-conductive clothes and non-skid foot-  
wear are recommended when working. Wear restrictive hair covering to contain  
long hair.  
9.  
Do not overreach. Keep proper footing and balance at all times. Do not reach  
over or across running tools or air hoses.  
10.  
Disconnect air hose and release any built-up air pressure. Never service the  
Impact Wrench or disassemble with the air hose attached. Always release any  
built-up air even after disconnecting hose. Disconnect the Impact Wrench when  
not in use.  
11.  
Avoid unintential starting. Be sure the Trigger (27) is in the OFF position  
when not in use and before plugging in. Do not carry any tool with your finger on  
the Trigger, whether it is attached to an air source or not.  
12.  
13.  
Stay alert. Watch what you are doing. Use common sense. Do not operate any  
tool when you are tired or distracted.  
Check for damaged parts. Before using any tool, any part that appears  
damaged should be carefully checked to determine that it will operate properly  
and perform its intended function. Check for alignment and binding of moving  
parts, any broken parts, and any other condition that may affect proper operation.  
Any part that is damaged should be properly repaired or replaced by a qualified  
technician. Do not use the tool if the Trigger does not operate properly.  
14.  
Replacement parts and accessories. This product is to be repaired and  
serviced only by a qualified technician. When this product is serviced, only  
identical replacement parts should be used. Use of any other parts will void the  
warranty. Only use accessories intended for use with this tool. Approved  
accessories are available from Harbor Freight Tools.  
SKU 95141  
For technical questions, please call 1-800-444-3353  
PAGE 3  
 
15.  
16.  
17.  
18.  
Do not operate tool if under the influence of alcohol or drugs. Read warning  
labels if taking prescription medicine to determine if your judgement or reflexes  
are impaired while taking drugs. If there is any doubt, do not operate the tool.  
Maintenance. The maintenance outlined in the “Maintenance” section of this  
manual should be performed regularly. For your safety, this product should be  
serviced or repaired regularly only by a qualified technician.  
Compressed air only. Use clean, dry, regulated, compressed air at 90 PSI.  
Never use oxygen, carbon dioxide, combustible gases, or any other bottled gas  
as a power source for this tool.  
Always grip the Impact Wrench firmly with both hands when operating the  
tool.  
19.  
20.  
Industrial applications must follow OSHA requirements.  
Maintain labels and nameplates on the ImpactWrench. These carry important  
information. If unreadable or missing, contact Harbor Freight Tools for a  
replacement.  
21.  
WARNING! The warnings, cautions, and instructions discussed in this  
instruction manual cannot cover all possible conditions and situations that may  
occur. It must be understood by the operator that common sense and caution  
are factors which cannot be built into this product, but must be supplied by the  
operator.  
SAVE THESE INSTRUCTIONS  
CONNECTING TO AN AIR SUPPLY  
1.  
For best service, you should incorporate an oiler, regulator, and in-line filter, as  
shown in the diagram below. Hoses, couplers, oilers, regulators, and filters are  
all available at Harbor Freight Tools. NOTE: If an automatic oiler is not used,  
put 3-5 drops of pneumatic Tool Oil (not included) in the tool’s quick connector  
before each use. (See Figure A.)  
REGULATOR  
FILTER  
OILER  
FIGURE A  
SKU 95141  
For technical questions, please call 1-800-444-3353  
PAGE 4  
 
ASSEMBLY INSTRUCTIONS  
1.  
Prior to use, the Impact Wrench requires the attachment of a 3/8”-18 NPT Quick  
Connector (not included) to its Air Inlet (45). To do so, make sure the screen Air  
Filter (44) is properly seated in the Air Inlet. Wrap approximately 3” of pipe thread  
sealer tape (not included) around the male threads of the Quick Connector. Then,  
firmly tighten the Quick Connector into the Air Inlet. (See Figure B.)  
QUICK CONNECTOR  
(NOT INCLUDED)  
FIGURE B  
OPERATING INSTRUCTIONS  
1.  
WARNING! Use eye and hearing protection. Always wear ANSI  
approved safety impact goggles when using this Impact Wrench. Also,  
wear ANSI approved hearing protection. Other people in the work area  
must also wear appropriate ANSI approved safety equipment.  
2.  
3.  
4.  
5.  
Whenever possible, secure the workpiece in place, using a vise or clamps  
(not included).  
Make sure the Impact Wrench is disconnected from its air supply hose prior to  
installing or changing sockets (not included) on the tool.  
Select the proper 3/4” impact socket for the job at hand. Then, firmly insert the  
socket onto the Anvil (39) of the Impact Wrench. (See Figure C, next page.)  
The Impact Wrench features a Forward/Reverse Valve (21) that allows you to  
change the rotational direction of the tool. For a forward (clockwise) rotation,  
move the Forward/Reverse Valve to the left. For a reverse (counterclockwise)  
rotation, move the Forward/Reverse Valve to the right. (See Figure C.)  
SKU 95141  
For technical questions, please call 1-800-444-3353  
PAGE 5  
 
6.  
7.  
8.  
9.  
Connect the air supply hose (not included) to the previously installed Quick  
Connnector of the Impact Wrench. (See Figure C.)  
Turn on the air compressor, and set its regulator at 90 PSI.  
Do not exceed 90 PSI.  
Wait until the air compressor’s regulator reaches 90 PSI. Then, insert the  
previously installed socket onto the nut that is to be loosened or tightened.  
Make sure to hold the Impact Wrench firmly with both hands, as torque from the  
tool will cause the tool to twist. Then, squeeze the Trigger (27) to turn on the  
tool. (See Figure C.)  
10.  
While the work is in progress, you may need to change the directional rotation of  
the tool. To avoid damaging the ImpactWrench, always make sure the tool  
is at a complete stop before changing the rotational direction.  
(See Figure C.)  
11.  
12.  
When finished, release the Trigger (27) to stop the Impact Wrench.  
(See Figure C.)  
Turn off the air compressor. Squeeze the Trigger (27) of the Impact Wrench to  
release any remaining air pressure in the system and tool. Disconnect the  
tool from its air supply hose. Then, remove the socket from the tool and store  
the socket in a safe location. (See Figure C.)  
13.  
Make sure to store the Impact Wrench in a clean, dry, safe location out of reach  
of children and other unauthorized people.  
SOCKET  
(NOT INCLUDED)  
FORWARD/REVERSE VALVE  
(21)  
TRIGGER  
(27)  
AIR SUPPLY HOSE  
(NOT INCLUDED)  
FIGURE C  
SKU 95141  
For technical questions, please call 1-800-444-3353  
PAGE 6  
 
TROUBLESHOOTING  
Problem  
Possible Solution  
Impact Wrench does not turn on when  
Trigger is squeezed.  
1. Make sure to firmly squeeze the Trigger (27).  
2. Make sure air compressor is on and its regulator  
is set at 90 PSI.  
3. Make sure all air system connections are secure  
and that there are no leaks.  
4. Make sure the air and oil filters in the air compressor  
are not plugged.  
5. Make sure the Air Filter (44) within the Air  
Inlet (45) is not plugged.  
Releasing the Trigger on the Impact  
Wrench does not turn off the tool.  
1. Turn off the air compressor. Release any remaining  
compressed air from the system and tool. Disconnect  
the air supply hose from the tool. Do not use the tool  
until a qualified service technician repairs the tool.  
INSPECTION, MAINTENANCE, AND CLEANING  
1.  
2.  
WARNING! Always wear ANSI approved safety impact goggles when  
performing any inspection, maintenance, or cleaning procedures.  
WARNING! Prior to performing any inspection, maintenance, or cleaning of  
the Impact Wrench, make sure to disconnect the air hose from the tool. Then,  
squeeze the Trigger (27) again to release any compressed air in the system and  
tool.  
3.  
4.  
5.  
To clean the exterior of the Impact Wrench, wipe with a clean, damp cloth  
using a mild detergent or mild solvent. Do not immerse the tool in liquids.  
When storing, always store the Riveter in a clean, dry, safe location out of reach  
of children.  
CAUTION! All maintenance, service, and repairs not mentioned in this  
manual must only be performed by a qualified service technician.  
PLEASE READ THE FOLLOWING CAREFULLY  
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM IN THIS MANUAL  
AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR  
WARRANTY OF ANY KIND TO THE BUYER 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 THE BUYER. THE BUYER ASSUMES  
ALL RISKS AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS  
THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.  
SKU 95141  
For technical questions, please call 1-800-444-3353  
PAGE 7  
 
PARTS LIST  
P art #  
1
D esc rip tio n  
B ushing  
Q ty.  
1
P art #  
25  
D esc rip tio n  
S pacer  
Q ty.  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20*  
21*  
22  
23  
24  
S pring R ing  
B earing  
F ront E nd P late  
P in  
C ylin der  
P in  
R otor  
R ear E nd P late  
B earing  
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44**  
45**  
46  
47  
48  
V alve B ushin g  
T rigger  
G asket  
B oard  
S crew  
B la de  
S pring W asher  
S crew  
C lutch H ousing  
F ront G asket  
F ront S haft B ush in g  
S pring R ing  
O -R ing  
1
1
1
1
2
6
4
4
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
S pacer  
R ear G asket  
P isto l G rip H an dle  
T radem ark  
G uide  
A nvil  
S crew  
Im pact P in  
Im pact C age  
Im pact D og  
S pacer  
A ir F ilter  
A ir Inle t  
O -R ing  
V alve S pring  
A ir C loser  
S pring W asher  
S pe ed C ond itioner  
R everse V a lve B ushing  
O -R ing  
F orw ard/R everse V a lve  
E xhaust D eflector  
R oll P in  
S crew  
* Sold only as an assembly.  
** Sold only as an assembly.  
SKU 95141  
For technical questions, please call 1-800-444-3353  
PAGE 8  
 
ASSEMBLY DIAGRAM  
*
*
**  
**  
NOTE:  
Some parts are listed and shown for illustration purposes only,  
and are not available individually as replacement parts.  
WARRANTY  
LIMITED 2YEAR  
WARRANTY  
Harbor FreightTools 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 2 years 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, 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  
SKU 95141  
For technical questions, please call 1-800-444-3353  
PAGE 9  
 

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