Chicago Electric Power Hammer 94882 User Manual

BREAKER HAMMER  
Model 94882  
ASSEMBLY AND OPERATING INSTRUCTIONS  
Diagrams within this manual may not be drawn proportionally.  
Due to continuing improvements, actual product may differ slightly from the product described herein.  
Distributed exclusively by Harbor Freight Tools®.  
3491 Mission Oaks Blvd., Camarillo, CA 93011  
Read this material before using this product.  
Failure to do so can result in serious injury.  
SaVe THiS manual.  
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 or replacement parts, please call 1-800-444-3353.  
 
2.  
3.  
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  
the dust or fumes.  
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.  
ELECTRICAL SAFETY  
4.  
5.  
6.  
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 break down, grounding  
provides a low resistance path to carry electricity away from the user.  
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.  
7.  
8.  
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 immediately.  
Damaged Power Cords increase the risk of electric shock.  
9.  
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.  
PERSONAL SAFETY  
10.  
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.  
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PAGE 3  
 
11.  
12.  
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. Make sure you are prepared to  
begin work before turning the Power Switch (62) “ON”.  
13.  
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.  
14.  
15.  
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.  
Always wear eye, hearing, and breathing protection. Wear ANSI-approved  
safety impact eye glasses, ANSI-approved hearing protectors, and ANSI-  
approved dust mask or respirator when using this product. Also, non-skid  
safety shoes and a hard hat must be used for appropriate conditions.  
TOOL USE AND CARE  
16.  
17.  
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 or repaired.  
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.  
18.  
19.  
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. Keep cutting tools sharp and clean. Properly  
maintained tools with a sharp cutting edge are less likely to bind and are easier  
to control. Do not use a damaged tool. Tag damaged tools “Do not use” until  
repaired.  
20.  
21.  
Check for misalignment or binding of moving parts, breakage of parts, 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.  
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SERVICE  
24.  
25.  
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.  
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.  
GROUNDED TOOLS:TOOLS WITH THREE PRONG PLUGS  
1.  
Tools marked with “Grounding Required” have a three wire cord and three prong  
grounding plug. The plug must be connected to a properly grounded outlet. If the  
tool should electrically malfunction or break down, grounding provides a low resis-  
tance path to carry electricity away from the user, reducing the risk of electric shock.  
(See Figure A, next page.)  
2.  
3.  
The grounding prong in the plug is connected through the green wire inside the  
cord to the grounding system in the tool. The green wire in the cord must be the  
only wire connected to the tool’s grounding system and must never be attached to  
an electrically “live” terminal. (See Figure A.)  
Your tool must be plugged into an appropriate outlet, properly installed and grounded  
in accordance with all codes and ordinances. The plug and outlet should look like  
those in the following illustration. (See Figure A page 6.)  
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FIGURE A  
DOUBLE INSULATED TOOLS:TOOLS WITH TWO PRONG PLUGS  
4.  
5.  
Tools marked “Double Insulated” do not require grounding. They have a special  
double insulation system which satisfies OSHA requirements and complies with  
the applicable standards of Underwriters Laboratories, Inc., the Canadian  
Standard Association, and the National Electrical Code. (See Figure B.)  
Double insulated tools may be used in either of the 120 volt outlets shown in the  
following illustration. (See Figure B.)  
FIGURE B  
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PAGE 6  
 
EXTENSION CORDS  
1.  
2.  
Grounded tools require a three wire extension cord. 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 C)  
3.  
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 C, and Figure D.)  
4.  
5.  
If using more than one extension cord to make up the total length, make sure  
each cord contains at least the minimum wire size required.  
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 C, and Figure D.)  
6.  
7.  
If you are using an extension cord outdoors, make sure it is marked with the suf-  
fix “W-A” (“W” in Canada) to indicate it is acceptable for outdoor use.  
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 elec-  
trician before using it.  
8.  
Protect your extension cords from sharp objects, excessive heat, and damp or  
wet areas.  
RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS*  
NAMEPLATE  
AMPERES  
EXTENSION CORD LENGTH  
(At Full Load)  
25 Feet  
18  
50 Feet  
75 Feet  
18  
100 Feet  
150 Feet  
0 - 2.0  
2.1 - 3.4  
18  
18  
18  
16  
14  
12  
10  
18  
16  
14  
12  
10  
-
16  
14  
12  
12  
-
18  
18  
3.5 - 5.0  
18  
16  
5.1 - 7.0  
18  
14  
7.1 - 12.0  
12.1 - 16.0  
16.1 - 20.0  
FIGURE C  
18  
12  
14  
10  
-
12  
-
-
-
* Based on limiting the line voltage drop to five volts at 150% of the rated amperes.  
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PAGE 7  
 
SYMBOLOGY  
Double Insulated  
Canadian Standards  
Association  
Underwriters  
Laboratories, Inc.  
Volts Alternating Current  
V ~  
A
Amperes  
No Load Revolutions  
per Minute (RPM)  
no  
xxxx/min.  
SPECIFIC SAFETY RULES  
1.  
Maintain labels and nameplates on the Breaker Hammer. These carry  
important information. If unreadable or missing, contact Harbor Freight Tools for a  
replacement.  
2.  
3.  
Industrial applications must follow OSHA requirements.  
Check for damaged parts. Before using this product, carefully check that it will  
operate properly and perform its intended function. Check for damaged parts and  
any other conditions that may affect the operation of this product. Replace or repair  
damaged or worn parts immediately.  
4.  
5.  
Always disconnect the Breaker Hammer from its electrical outlet before  
performing any services, maintenance, or cleaning such as leaving the work  
area, moving the tool from one location to another, changing Saw Blades, cleaning  
sawdust from the unit, etc.  
WARNING! Some dust created by power sanding, sawing, grinding, drilling, and  
other construction activities, contain chemicals known (to the State of California) to  
cause cancer, birth defects or other reproductive harm. Some examples of these  
chemicals are:  
(a) Lead from lead-based paints;  
(b) Crystalline silica from bricks and cement or other masonry products;  
(c) Arsenic and chromium from chemically treated lumber.  
Your risk from these exposures varies, depending on how often you do this  
type of work. To reduce your exposure to these chemicals; work in a well ventilated  
area, and work with approved safety equipment, such as those dust masks that are  
specially designed to filter out microscopic particles. (California Health & Safety  
Code 25249.5, et seq.)  
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PAGE 8  
 
6.  
WARNING! People with pacemakers should consult their physician(s) before using  
this product. Electromagnetic fields in close proximity to a heart pacemaker could  
cause interference to or failure of the pacemaker.  
WARNING: Always wear ANSI-approved impact safety goggles. Wear a full face shield  
if you are producing metal filings or wood chips. Wear an ANSI-approved dust mask or  
respirator when working around metal, wood, and chemical dusts and mists. Always wear  
ear protection. Ear protection is required for any other persons in the work area.  
WARNING: Be aware of flying concrete chips. Keep spectators clear of the work area.  
WARNING: Do not operate this tool if you have back, neck, wrist, or other conditions or  
injuries that will be aggravated by the jerking forces this tool exerts upon its operator.  
WARNING: Always use the side handle when operating this tool.  
NOTE: Use the weight of the Breaker Hammer to break concrete. Use the tool in the vertical  
position whenever possible. This tool was intended to break larger pieces of concrete.  
WARNING: If the Breaker Hammer ever gets out of your control, immediately release the  
Switch (62).  
VIBRATION HAzARD  
This tool vibrates during use. Repeated or long-term exposure to vibration may  
cause temporary or permanent physical injury, particularly to the hands, arms and  
shoulders. To reduce the risk of vibration-related injury:  
1.  
2.  
Anyone using vibrating tools regularly or for an extended period should first be  
examined by a doctor and then have regular medical check-ups to ensure medical  
problems are not being caused or worsened from use. Pregnant women or people  
who have impaired blood circulation to the hand, past hand injuries, nervous system  
disorders, diabetes, or Raynaud’s Disease should not use this tool. If you feel any  
medical or physical symptoms related to vibration (such as tingling, numbness, and  
white or blue fingers), seek medical advice as soon as possible.  
Do not smoke during use. Nicotine reduces the blood supply to the hands and  
fingers, increasing the risk of vibration-related injury.  
3.  
4.  
Wear suitable gloves to reduce the vibration effects on the user.  
Use tools with the lowest vibration when there is a choice between different pro-  
cesses.  
5.  
6.  
Include vibration-free periods each day of work.  
To reduce vibration, maintain the tool as explained in this manual. If any abnormal  
vibration occurs, stop use immediately.  
REV 07j  
SKU 94882  
PAGE 9  
 
UNPACKING  
When unpacking, check to make sure all parts shown on the Parts  
Lists and Assembly Diagrams on pages 12-14 are included. If any parts  
are missing or broken, please call Harbor Freight Tools at the number shown  
on the cover of this manual as soon as possible.  
ASSEMBLY INSTRUCTIONS  
How to attach and adjust the Side Handle:  
1.  
Slide the Clamp (122) over the Collet (8). Secure it using the Knob (120). (See  
Figure 1 below.)  
2.  
To adjust the angle of the Side Handle, loosen the Knob (120). Adjust the angle  
of the Side Handle, then tighten the Knob (120) to secure it.  
Figure 1  
122  
8
120  
Side Handle  
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PAGE 10  
 
How to attach the chisels  
1.  
Slide the chisels into the Breaker Hammer with the flat cut-out side facing up and  
while the Rod (4) is aligned with the Chisel shank. See figure 2.  
2.  
The Chisel has a flat space on the shaft that must be turned horizontally when it  
is inserted. See Figure 2. Pull out on the Pin and rotate it 90° to lock the Chisel in  
place.The Chisel should be able to move back and forth after it is locked but should  
not come out.  
Figure 2  
Lock Pin 4  
Chisel  
OPERATING INSTRUCTIONS  
IMPORTANT - READ BEFORE USE  
This Breaker Hammer may have decreased performance for a brief period at the begin-  
ning of each use. This warm-up period lasts approximately 3-5 minutes. This happens  
because the grease inside the tool may be thick, preventing the tool from operating at  
full efficiency while the motor is cold. This is normal and does not indicate a problem. To  
help reduce this effect, store this equipment in temperatures no lower than 50-60° F.  
How to turn on the Breaker Hammer  
To turn on the Breaker Hammer, flip the Switch (62) shown below in Figure 3.  
How to Adjust the impact level of the Breaker Hammer  
The Impact level is adjusted by turning the Knob (117). The numbers on the Knob  
indicate the level of impact. Number one is the lowest level, seven is the highest  
level. See Figure 4.  
Figure 3  
Figure 4  
Knob (117)  
Switch (62)  
REV 12/06  
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PAGE 11  
 
OPERATING INSTRUCTIONS (CONTINUED)  
Chipping in a straight line with a chisel bit  
1.  
Use chalk or another suitable writing material and mark you work surface to  
delineate the area you intend to hammer.  
2.  
3.  
Plug in the Breaker Hammer.  
Grasp the main Handle (90) and side Handle (90) firmly with both hands. When you  
are sure that no people or animals are in the vicinity, and it’s safe to begin, depress  
the Switch (62).  
4.  
5.  
The Breaker Hammer will begin to break the top layer of concrete. If you push down,  
it will begin to break the next layer as well.  
Keep moving the Breaker Hammer along the line you want to section, breaking  
concrete as you go. If the Breaker Hammer jumps off of the line or section, release  
the Switch (62) and reposition the Breaker Hammer.  
6.  
When you are finished, release the Switch (62) and unplug the Breaker Hammer.  
Breaking up concrete with a bull point pit  
1.  
2.  
Place the bit on the center of a piece of concrete.  
Grasp the main Handle (90) and side Handle (90) firmly with both hands. When you  
are sure that no people or animals are in the vicinity, and it’s safe to begin, depress  
the Switch Knob (87).  
3.  
4.  
As you break concrete into big chunks, release the Switch Knob (87) and move to  
other large pieces until all larger pieces are broken. Do not break up smaller pieces  
with this tool as it is too powerful and aggressive to control on small pieces.  
When finished, release the Switch Knob (87) and unplug the Breaker Hammer.  
INSPECTION, MAINTENANCE, AND CLEANING  
1.  
2.  
WARNING! Always disconnect the Breaker Hammer from its electri-  
cal power supply source before performing any inspection, mainte-  
nance, or cleaning procedure.  
Before each use, inspect the general condition of the Breaker Hammer. Inspect  
the switch, power plug and cord assembly, and extension cord (if used) for dam-  
age. Check for loose screws, misalignment, binding of moving parts and any other  
condition that may affect its safe operation. If abnormal noise or vibration occurs,  
turn off the Breaker Hammer immediately and have the problem corrected before  
further use.  
Do not use damaged equipment.  
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PAGE 12  
 
PARTS LIST  
NO.  
PART NAME  
Bushing  
Pin  
Ring  
QTY  
NO.  
PART NAME  
QTY  
1
2
3
4
5
6
7
8
9
1
1
1
1
6
6
6
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
4
4
4
4
2
1
1
1
1
42 Feather Key  
43 Gear  
44 Circlip  
45 Bearing 6002NSK  
46 Spacer  
47 Spacer  
48 Circlip  
49 Seal  
50 Bearing 620NSK  
51 Circlip  
52 Spring Washer  
53 Washer  
54 Screw M5X25  
55 Cord Jacket  
56 Cord  
57 Capacitor  
58 Seal  
2
1
1
2
1
1
1
1
1
1
6
6
6
1
1
1
1
1
2
1
1
1
1
1
1
2
2
2
2
1
1
1
1
1
1
4
4
4
1
1
Pin  
Screw M6X40  
Washer  
Spring Washer  
Collet  
O Ring  
10 O Ring  
11 O Ring  
12 Spindle Cover  
13 Seal  
14 O Ring  
15 Rear Bushing  
16 Beat Piece  
17 Bushing  
18 Damper  
19 Bushing  
20 O Ring  
21 Seal  
22 O Ring  
23 O Ring  
24 Cylinder Sleeve  
25 Ram  
26 O Ring  
27 Front Housing  
28 Spring Guide  
29 Spring  
30 Spring Guide  
31 Copper Guard  
32 Spring guide  
33 Screw M8X40  
34 Washer  
35 Spring Washer  
36 Screw M4X14  
37 Side Cover  
38 Bearing 620NSK  
39 Gear  
59 Cover  
60 Screw ST4X18  
61 Cord Clip  
62 Switch  
63 Actuator  
64 Rod  
65 Trigger  
66 Pin  
67 Brush Housing  
68 Carbon Brush  
69 Screw ST3X10  
70 Brush Spring  
71 Screw  
72 Spring Washer  
73 Washer  
74 Fan Wheel  
75 Cover  
76 Screw ST3X10  
77 Screw M5X25  
78 Washer  
79 Spring Washer  
80 Brush Plate  
81 Sleeve Insulator  
40 Washer  
41 Gear  
REV 08b  
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PAGE 13  
 
PARTS LIST CONTINUED  
NO.  
PART NAME  
QTY  
NO.  
PART NAME  
QTY  
82 Bearing 600NSK  
83 Washer  
84 Magnetism Ring  
85 Rotor  
86 Screw ST5X70  
87 Stator  
88 Housing  
89 Glass Fiberpipe  
90 Handle  
91 Screw M5X18  
92 Washer  
93 Spring Washer  
94 Screw M4X12  
95 Cord Clip  
96 Gear Case  
97 O Ring  
1
1
1
1
2
1
1
1
1
6
6
6
1
1
1
1
1
1
1
3
3
3
1
105 Connecting Rod  
106 Piston Pin  
107 Pin  
1
1
1
1
1
2
1
1
5
5
5
1
1
1
1
1
1
1
2
1
1
1
108 O Ring  
109 Eletronic Board  
110 Screw ST4X14  
111 Connecting Plate  
112 Cover  
113 Spring Washer  
114 Washer  
115 Screw M5X25  
116 Detent  
117 Knob  
118 Cover  
119 Nut  
120 Knob Seal  
121 Handle  
122 Clamp  
98 Bearing 6304NSK  
99 Crank Shaft  
100 Cover  
101 Spring Washer  
102 Washer  
123 Washer Clamp  
124 Bolt M8X180  
125 Pointed Chisel  
126 Case  
103 Screw M5X22  
104 Needle bearing  
127 Square Chisel (not shown) 1  
PLEASE READ THE FOLLOWING CAREFULLY  
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED  
THE PARTS DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY.  
NEITHERTHE MANUFACTURER NOR DISTRIBUTOR MAKES ANY REP-  
RESENTATION 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 TECHNI-  
CIANS AND NOT BYTHE BUYER. THE BUYER ASSUMES ALL RISK 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.  
REV 08b  
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PAGE 14  
 
ASSEMBLY DIAGRAM  
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PAGE 15  
 
LIMITED 90 DAY WARRANTY  
Harbor Freight Tools 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 90 days 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, criminal activity,  
improper installation, normal wear and tear, 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 com-  
plaint 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 94882  
PAGE 16  
 

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