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.
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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
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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
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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
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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
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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
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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
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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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