Northern Industrial Tools Impact Driver 150611 User Manual

 
WORK AREA  
1.  
2.  
Keep your work area clean and well lit. Cluttered benches and dark areas  
invite accidents.  
Do not operate power tools in explosive atmospheres, such as in the  
presence of flammable liquids, gases, or dust. Power tools create sparks  
which may ignite flammables.  
3.  
Keep bystanders, children, and visitors away while operating a power tool.  
Distractions can cause you to lose control. Protect others in the work area from  
debris such as chips and sparks. Provide barriers or shields as needed.  
PERSONAL SAFETY  
1.  
Stay alert. Watch what you are doing, and use common sense when  
operating a power tool. Do not use a power tool while tired or under the  
influence of drugs, alcohol, or medication. A moment of inattention while  
operating power tools may result in serious personal injury.  
2.  
3.  
4.  
5.  
6.  
Dress properly. Do not wear loose clothing or jewelry. Contain long hair.  
Keep your hair, clothing, and gloves away from moving parts. Loose  
clothes, jewelry, or long hair can be caught in moving parts.  
Avoid accidental starting. Be sure the Power Switch is off before plugging  
in. Carrying power tools with your finger on the Power Switch, or plugging in  
power tools with the Power Switch on, invites accidents.  
Remove adjusting keys or wrenches before turning the power tool on. A  
wrench or a key that is left attached to a rotating part of the power tool may result  
in personal injury.  
Do not overreach. Keep proper footing and balance at all times. Proper  
footing and balance enables better control of the power tool in unexpected  
situations.  
Use safety equipment. Always wear ANSI approved safety goggles  
underneath a full face shield, a dust mask or respirator, and hearing  
protection.  
TOOL USE AND CARE  
1.  
Use clamps or other practical ways to secure and support the workpiece to  
a stable platform. Holding the work by hand is unstable and may lead to loss of  
control. Only work on a workpiece that is properly secured.  
3
 
2.  
3.  
Do not force the tool. Use the correct tool for your application. The correct  
tool will do the job better and safer at the rate for which it is designed.  
Do not use the power tool if the Power Switch does not turn it on or off.  
Any tool that cannot be controlled with the Power Switch is dangerous and must  
be replaced.  
4.  
Disconnect the Power Cord Plug from the power source before making any  
adjustments, changing accessories, or storing the tool. Such preventive  
safety measures reduce the risk of starting the tool accidentally.  
5.  
6.  
Store idle tools out of reach of children and other untrained persons. Tools  
are dangerous in the hands of untrained users.  
Maintain tools with care. Do not use a damaged tool. Tag damaged tools “Do  
not use” until repaired.  
7.  
8.  
Check for misalignment or binding of moving parts, breakage of parts,  
cracking or breakage of the Cut-Off Wheel, and any other condition that  
may affect the tool’s operation. If damaged, have the tool serviced before  
using. Many accidents are caused by poorly maintained tools.  
Use only accessories that are recommended by the manufacturer for your  
model. Accessories that may be suitable for one tool may become hazardous  
when used on another tool.  
SERVICE  
1.  
2.  
Tool service must be performed only by qualified repair personnel. Service  
or maintenance performed by unqualified personnel could result in a risk of injury.  
When servicing a tool, use only identical replacement parts. Follow  
instructions in the “Inspection, Maintenance, And Cleaning” section of this  
manual. Use of unauthorized parts or failure to follow maintenance instructions  
may create a risk of electric shock or injury.  
ELECTRICAL SAFETY  
1.  
Grounded tools must be plugged into an outlet properly installed and  
grounded in accordance with all codes and ordinances. Never remove the  
grounding prong or modify the plug in any way. Do not use any adapter  
plugs. Check with a qualified electrician if you are in doubt as to whether  
the outlet is properly grounded. If the tools should electrically malfunction or  
4
 
break down, grounding provides a low resistance path to carry electricity away  
from the user.  
2.  
3.  
Double insulated tools are equipped with a polarized plug (one blade is  
wider than the other). This plug will fit in a polarized outlet only one way.  
If the plug does not fit fully in the outlet, reverse the plug. If it still does  
not fit, contact a qualified electrician to install a polarized outlet. Do not  
change the plug in any way. Double insulation  
eliminates the need for the  
three wire grounded power cord and grounded power supply system.  
Avoid body contact with grounded surfaces such as pipes, radiators,  
ranges, and refrigerators. There is an increased risk of electric shock if your  
body is grounded.  
4.  
5.  
Do not expose power tools to rain or wet conditions. Water entering a power  
tool will increase the risk of electric shock.  
Do not abuse the Power Cord. Never use the Power Cord to carry the tools  
or pull the Plug from an outlet. Keep the Power Cord away from heat, oil,  
sharp edges, or moving parts. Replace damaged Power Cords immedi-  
ately. Damaged Power Cords increase the risk of electric shock.  
6.  
When operating a power tool outside, use an outdoor extension cord  
marked “W-A” or “W”. These extension cords are rated for outdoor use, and  
reduce the risk of electric shock.  
GROUNDING  
WARNING!  
Improperly connecting the grounding wire can result in the risk of electric  
shock. Check with a qualified electrician if you are in doubt as to whether the  
outlet is properly grounded. Do not modify the power cord plug provided with  
the tool. Never remove the grounding prong from the plug. Do not use the  
tool if the power cord or plug is damaged. If damaged, have it repaired by  
a service facility before use. If the plug will not fit the outlet, have a proper  
outlet installed by a qualified electrician.  
DOUBLE INSULATED TOOLS: TOOLS WITH TWO PRONG PLUGS  
1.  
Tools marked “Double Insulated” do not require grounding. They have a special  
double insulation system which satisfies OSHA requirements and complies with  
5
 
the applicable standards of Underwriters Laboratories, Inc., the Canadian  
Standard Association, and the National Electrical Code. (See Figure A.)  
2.  
Double insulated tools may be used in either of the 120 volt outlets shown in the  
following illustration. (See Figure A.)  
FIGURE A  
EXTENSION CORDS  
1.  
2.  
Double Insulated tools can use either a two or three wire extension cord.  
As the distance from the supply outlet increases, you must use a heavier gauge  
extension cord. Using extension cords with inadequately sized wire causes a  
serious drop in voltage, resulting in loss of power and possible tool damage.  
(See Figure B, next page.)  
3.  
4.  
The smaller the gauge number of the wire, the greater the capacity of the cord.  
For example, a 14 gauge cord can carry a higher current than a 16 gauge cord.  
(See Figure B.)  
When using more than one extension cord to make up the total length, make  
sure each cord contains at least the minimum wire size required.  
(See Figure B.)  
5.  
6.  
If you are using one extension cord for more than one tool, add the nameplate  
amperes and use the sum to determine the required minimum cord size.  
(See Figure B.)  
If you are using an extension cord outdoors, make sure it is marked with the  
suffix “W-A” (“W” in Canada) to indicate it is acceptable for outdoor use.  
6
 
7.  
8.  
Make sure your extension cord is properly wired and in good electrical condition.  
Always replace a damaged extension cord or have it repaired by a qualified  
electrician before using it.  
Protect your extension cords from sharp objects, excessive heat, and damp or  
wet areas.  
RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS*  
(120 VOLT)  
NAMEPLATE  
AMPERES  
EXTENSION CORD LENGTH  
(At Full Load)  
25  
FEET  
18  
18  
18  
18  
16  
14  
12  
50  
FEET  
18  
18  
18  
16  
14  
12  
10  
75  
FEET  
18  
18  
16  
14  
12  
10  
-
100  
FEET  
18  
16  
14  
12  
10  
-
150  
FEET  
0-2.0  
2.1-3.4  
16  
14  
12  
12  
-
3.5-5.0  
5.1-7.0  
7.1-12.0  
12.1-16.0  
16.1-20.0  
-
-
-
*Based on limiting the line voltage drop  
to five volts at 150% of the rated amperes.  
FIGURE B  
SYMBOLOGY  
Double Insulated  
Canadian Standards  
Association  
Underwriters  
Laboratories, Inc.  
Volts Alternating  
Current  
V ~  
Amperes  
A
No Load Revolutions  
Per Minute (RPM)  
n
o
xxxx/min.  
FIGURE C  
7
 
SPECIFIC SAFETY RULES  
1.  
Maintain labels and nameplates on the ImpactWrench. These carry important  
information. If unreadable or missing, contact Harbor Freight Tools for a  
replacement.  
2.  
3.  
When using the Impact Wrench, always maintain a firm grip on the tool with  
both hands (one hand on side handle and one on main handle).  
Do not use the Impact Wrench if it has been dropped, damaged, left  
outdoors, or immersed in liquid.  
4.  
To avoid electrical shock, do not pull or carry the Impact Wrench by its  
Power Cord or pull the Power Cord around sharp corners or edges. Do not  
unplug the Impact Wrench by pulling on the Power Cord. Keep the Power Cord  
away from heated surfaces.  
5.  
6.  
To avoid electrical shock, do not handle the Impact Wrench with wet hands.  
Keep the Handle of the Impact Wrench dry, clean, free from oil and  
grease.  
7.  
Always turn off the Impact Wrench and unplug the tool from its electrical  
outlet before changing accessories or performing any inspection,  
maintenance, or cleaning procedures.  
8.  
9.  
Industrial applications must follow OSHA requirements.  
Use the right tool or attachment for the right job. Do not attempt to force a  
small tool or attachment to do the work of a larger industrial tool or attachment.  
There are certain applications for which this product was designed. It will do the  
job better and more safely at the rate for which it was intended. Do not modify  
this product, and do not use this product for a purpose for which it was not  
intended.  
10.  
11.  
WARNING! People with pacemakers should consult their physician(s)  
before using this product. Operation of electrical equipment in close proximity to  
a heart pacemaker could cause interference or failure of the pacemaker.  
WARNING! The warnings, precautions, and instructions discussed in this  
manual cannot cover all possible conditions and situations that may occur. The  
operator must understand that common sense and caution are factors which  
cannot be built into this product, but must be supplied by the operator.  
8
 
PRODUCT FEATURES  
NOTE: For additional information regarding the parts listed in the following pages, refer  
to the Assembly Diagram on page 13.  
1.  
2.  
WARNING! Always make sure the Rocker Switch (39) of the Impact  
Wrench is in its “OFF” position and the tool is unplugged from its electrical outlet  
prior to making any adjustments to the tool. (See Figure D.) Note: When your  
finger is off the Rocker Switch (39), the tool is in the “OFF” position.  
Rocker Switch (39): The Rocker Switch is operated manually simply by squeezing  
the Switch to turn on the Impact Wrench and releasing pressure on the Switch to  
turn off the ImpactWrench. The Rocker Switch features a forward/reverse mechanism  
which allows you to change the rotational direction of the Impact Wrench. For  
a clockwise rotation, squeeze the lower portion of the Rocker Switch. For a  
counterclockwise rotation, squeeze the upper portion of the Rocker Switch. To  
avoid damage to the Impact Wrench, always wait until the tool completely stops  
before changing rotational directions. (See Figure D.)  
3.  
3/4" Impact Head (10): The 3/4" Impact Head features a spring and ball clip  
to securely hold a socket. The Impact Head accepts all sizes of standard and  
metric sockets having a 3/4" drive. (See Figure D.)  
IMPACT HEAD  
(10)  
REVERSE (COUNTERCLOCKWISE)  
ROCKER SWITCH  
(39)  
FORWARD (CLOCKWISE)  
POWER CORD  
(46)  
FIGURE D  
9
 
OPERATING INSTRUCTIONS  
1.  
2.  
Before installing a socket (not included), turn off the Impact Wrench and unplug the  
tool from its electrical outlet before changing accessories. Then, firmly insert a  
3/4" drive socket (not included) onto the 3/4" Impact Head (10) of the tool. Note: Only  
use impact sockets with this tool. (See Figure D.)  
Whenever possible, secure the workpiece in place, using a vise or clamps (not  
included).  
3.  
4.  
Insert the socket onto the nut that is to be loosened/tightened.  
Plug the Power Cord (46) of the Impact Wrench into the nearest 120 volt,  
grounded, electrical outlet. (See Figure D.)  
5.  
Make sure to hold the Impact Wrench firmly with both hands, as torque from the  
Motor will cause the tool to twist. Then squeeze the upper portion of the Rocker  
Switch (39) to loosen the nut, or squeeze the lower portion of the Rocker Switch  
to tighten the nut. (See Figure D.)  
6.  
7.  
When finished, release the Rocker Switch (39) to stop the Impact Wrench. Then,  
unplug the Power Cord (46) from its electrical outlet. (See Figure D.)  
Make sure to store the Impact Wrench in its Carrying Case (57) and in a dry,  
clean, location out of reach of children and other unauthorized people.  
INSPECTION, MAINTENANCE, AND CLEANING  
1.  
2.  
WARNING! Always make sure the Rocker Switch (39) is in its “OFF”  
position, and unplug the Power Cord (46) from its 120 volt electrical outlet  
before performing any inspection, adjustments, maintenance, or cleaning.  
Before each use: Inspect the general condition of the Impact Wrench. Check  
for loose screws, misalignment or binding of moving parts, cracked or broken  
parts, damaged electrical wiring, and any other condition that may affect its safe  
operation. If abnormal noise or vibration occurs, have the problem corrected  
before further use. Do not use damaged equipment.  
3.  
Daily: Use a clean cloth and mild detergent to remove all dirt and debris from  
the Impact Wrench. Do not use solvents. Do not immerse the Impact Wrench in  
any liquid.  
10  
 
4.  
To replace the Motor Carbon Brushes: It may become necessary at sometime  
to replace the two Carbon Brushes (49) when the Motor performance decreases,  
or stops working completely. The Carbon Brushes are located on each side of  
the Field Case (31).To do so, remove the two Brush Cap Covers (51). Next,  
remove the two Brush Caps (50). Then, remove the two Carbon Brushes (49). If  
the Carbon Brushes are worn down more than 1/2, replace both Carbon Brushes.  
If, however, the Carbon Brushes are just dirty they may be cleaned by rubbing  
them with a pencil eraser. When installing the Carbon Brushes, make sure the  
carbon portion of the Carbon Brushes contact the Motor Armature, and that the  
springs face away from the Motor. Also, make sure the springs operate freely.  
After cleaning or replacement, replace the Brush Caps (50) and Brush Cap  
Covers (51). NOTE: New Carbon Brushes tend to arc or spark when first  
used until they wear and conform to the Motor’s Armature. (See Figure E.)  
5.  
WARNING! All maintenance, service, and repairs not listed in this  
manual are only to be attempted by a qualified technician.  
RIGHT SIDE  
LEFT SIDE  
BRUSH CAP COVER (51)  
BRUSH CAP (50)  
CARBON BRUSH (49)  
FIGURE E  
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 ORWARRANTY OF ANY KINDTOTHE BUYERTHAT HE  
OR SHE IS QUALIFIEDTO MAKE ANY REPAIRSTOTHE PRODUCT, ORTHAT HE OR SHE IS QUALIFIED  
TO REPLACE ANY PARTS OFTHE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR  
EXPRESSLY STATESTHAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY  
CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL  
RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR  
REPLACEMENT PARTSTHERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT  
PARTSTHERETO.  
11  
 
PARTS LIST  
Part #  
Description  
Protection Cover  
O-Ring  
Bearing  
Band  
Qty.  
Part #  
29  
Description  
Qty.  
4
1
2
3
4
5
6
7
8
9
1
1
1
1
1
1
1
1
1
1
1
Lining  
Label  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
1
1
2
4
4
1
2
2
1
1
1
1
1
2
1
1
1
1
2
2
2
2
2
1
1
1
1
Field Case  
Screw (M5 x 8)  
Washer (M5)  
Hex Bolt (M5 x 60)  
End Cap  
Screw (ST4.2 x 16-F-H)  
Screw (ST4.2 x 19-F-H)  
Handle Cover  
Rocker Switch  
Switch Holder  
Capacitor  
Terminal Post  
Screw (ST4.2 x 16-F-H)  
Cord Clamp  
Cord Sheath  
Power Cord  
Name Plate  
Brush Holder  
Carbon Brush  
Brush Cap  
Gear Box  
Inner Gear  
Compression Spring  
Pin (2 x 10)  
Spring Pin  
Impact Head  
Impactor  
Steel Ball (5/32")  
Spring  
Steel Ball (9/32")  
Spindle  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
22  
1
2
1
2
2
1
1
1
1
1
1
1
1
2
2
1
Gear  
Pin  
Washer  
Bearing (61910-2Z)  
O-Rubber Sealing Ring  
Inner Cover  
Fan Baffle  
Bearing (6200-2RS)  
Armature  
Bearing (608-2Z)  
Screw (5 x 70)  
Washer (M5)  
Field  
Brush Cap Cover  
Screw (ST4.2 x 9.5-F-H)  
Four Corners Bolt  
Handle Holder  
Rod Holder  
Side Handle  
NOTE:  
Some parts are listed and shown for illustration purposes only,  
and are not available individually as replacement parts.  
12  
 
ASSEMBLY DIAGRAM  
49  
50  
51  
52  
NOTE:  
Some parts are listed and shown for illustration purposes only,  
and are not available individually as replacement parts.  
13  
 
 

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