BAUER 64120 Owner's Manual & Safety Instructions

Page 1
Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the back of the manual near the assembly diagram (or month and year of purchase if product has no number). Keep this manual and the receipt in a safe and dry place for future reference. 19a
!"#"$%&'(%)*+#"$*%,$-%.$$/-00)))1.,(+&(2(*"3.$14&5
65,"7%&'(%$*4.8"4,7%#'//&($%,$-%/(&9'4$#'//&($:.,(+&(2(*"3.$14&5
When unpacking, make sure that the product is intact
please call 1-888-866-5797 as soon as possible.
Copyright© 2018 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.
To ol s re q u ir e d fo r as s e mb l y a n d s e r vi c e m a y n o t b e in c l ud e d .
Read this material before using this product. Failure to do so can result in serious injury. SAVE THIS MANUAL.
Page 2
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Safety ........................................................................2
Specifications ............................................................7
Setup .........................................................................7
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Operation ...................................................................8
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Maintenance ..............................................................9
Parts List and Diagram .............................................10
Warranty ...................................................................12
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that
follow this symbol to avoid possible injury or death.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
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Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
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The term ″power tool″ in the warnings refers to your mains-operated (corded) power tool.
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1. Y**/%)&(X%,(*,%47*,8%,89%)*77%7"$1%%
Cluttered or dark areas invite accidents.
2. U&%8&$%&/*(,$*%/&)*(%$&&7#%"8%*Z/7&#"W*% ,$5&#/.*(*#=%#'4.%,#%"8%$.*%/(*#*84*%&2% 27,55,+7*%7"<'"9#=%3,#*#%&(%9'#$1 Power tools
create sparks which may ignite the dust or fumes.
Page 2 ;&(%$*4.8"4,7%<'*#$"&8#=%/7*,#*%4,77%>?@@@?@AA?BCDC1 Item 64120
3. Y**/%4."79(*8%,89%+V#$,89*(#% ,),V%)."7*%&/*(,$"83%,%/&)*(%$&&71
Distractions can cause you to lose control.
Page 3
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1. J&)*(%$&&7%/7'3#%5'#$%5,$4.%$.*%&'$7*$1%% M*W*(%5&9"2V%$.*%/7'3%"8%,8V%),V1%% U&%8&$%'#*%,8V%,9,/$*(%/7'3#%)"$.%3(&'89*9% /&)*(%$&&7#1 Unmodified plugs and matching
outlets will reduce risk of electric shock.
2. FW&"9%+&9V%4&8$,4$%)"$.%3(&'89*9%#'(2,4*#% #'4.%,#%/"/*#=%(,9",$&(#=%(,83*#%,89% (*2("3*(,$&(#1% There is an increased risk of
electric shock if your body is grounded.
3. U&%8&$%*Z/&#*%/&)*(%$&&7#%$&%(,"8%&(%)*$% 4&89"$"&8#1 Water entering a power tool
will increase the risk of electric shock.
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1. E$,V%,7*($=%),$4.%).,$%V&'%,(*%9&"83% ,89%'#*%4&55&8%#*8#*%).*8%&/*(,$"83% ,%/&)*(%$&&71%%U&%8&$%'#*%,%/&)*(% $&&7%)."7*%V&'%,(*%$"(*9%&(%'89*(%$.*% "827'*84*%&2%9('3#=%,74&.&7%&(%5*9"4,$"&81
A moment of inattention while operating power tools may result in serious personal injury.
2. P#*%/*(#&8,7%/(&$*4$"W*%*<'"/5*8$1%% F7),V#%)*,(%*V*%/(&$*4$"&81 Safety equipment
such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
4. U&%8&$%,+'#*%$.*%4&(91%%M*W*(%'#*%$.*%4&(9% 2&(%4,((V"83=%/'77"83%&(%'8/7'33"83%$.*% /&)*(%$&&71%%Y**/%4&(9%,),V%2(&5%.*,$=%&"7=% #.,(/%*93*#%&(%5&W"83%/,($#1%%Damaged or
entangled cords increase the risk of electric shock.
5. Q.*8%&/*(,$"83%,%/&)*(%$&&7%&'$9&&(#=% '#*%,8%*Z$*8#"&8%4&(9%#'"$,+7*%2&(% &'$9&&(%'#*1 Use of a cord suitable for outdoor
use reduces the risk of electric shock.
6. L2%&/*(,$"83%,%/&)*(%$&&7%"8%,%9,5/%7&4,$"&8% "#%'8,W&"9,+7*=%'#*%,%R(&'89%;,'7$%O"(4'"$% L8$*(('/$*(%[R;OL\%/(&$*4$*9%#'//7V1
Use of a GFCI reduces the risk of electric shock.
4. K*5&W*%,8V%,9]'#$"83%X*V%&(%)(*84.% +*2&(*%$'(8"83%$.*%/&)*(%$&&7%&81
A wrench or a key left attached to a rotating part of the power tool may result in personal injury.
5. U&%8&$%&W*((*,4.1%%Y**/%/(&/*(%2&&$"83%,89% +,7,84*%,$%,77%$"5*#1 This enables better control
of the power tool in unexpected situations.
6. U(*##%/(&/*(7V1%%U&%8&$%)*,(%7&&#*%47&$."83%&(% ]*)*7(V1%%Y**/%V&'(%.,"(=%47&$."83%,89%37&W*#% ,),V%2(&5%5&W"83%/,($#1 Loose clothes, jewelry
or long hair can be caught in moving parts.
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3. J(*W*8$%'8"8$*8$"&8,7%#$,($"831%68#'(*%$.*%#)"$4.% "#%"8%$.*%&22?/&#"$"&8%+*2&(*%4&88*4$"83%$&% /&)*(%#&'(4*=%/"4X"83%'/%&(%4,((V"83%$.*%$&&71
Carrying power tools with your finger on the switch or energizing power tools that
have the switch on invites accidents.
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1. U&%8&$%2&(4*%$.*%/&)*(%$&&71%%P#*%$.*% 4&((*4$%/&)*(%$&&7%2&(%V&'(%,//7"4,$"&81
The correct power tool will do the job better and
safer at the rate for which it was designed.
2. U&%8&$%'#*%$.*%/&)*(%$&&7%"2%$.*% #)"$4.%9&*#%8&$%$'(8%"$%&8%,89%&221
Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
3. U"#4&88*4$%$.*%/7'3%2(&5%$.*%/&)*(%#&'(4*% +*2&(*%5,X"83%,8V%,9]'#$5*8$#=%4.,83"83% ,44*##&("*#=%&(%#$&("83%/&)*(%$&&7#1
Such preventive safety measures reduce the risk of starting the power tool accidentally.
7. I87V%'#*%#,2*$V%*<'"/5*8$%$.,$%.,#%+**8% ,//(&W*9%+V%,8%,//(&/(",$*%#$,89,(9#%,3*84V1
Unapproved safety equipment may not provide adequate protection. Eye protection must be ANSI-approved and breathing protection must be NIOSH-approved for the specific hazards in the work area.
4. E$&(*%"97*%/&)*(%$&&7#%&'$%&2%$.*%(*,4.%&2%
4."79(*8%,89%9&%8&$%,77&)%/*(#&8#%'82,5"7",(% )"$.%$.*%/&)*(%$&&7%&(%$.*#*%"8#$('4$"&8#% $&%&/*(,$*%$.*%/&)*(%$&&71 Power tools are
dangerous in the hands of untrained users.
5. N,"8$,"8%/&)*(%$&&7#1%%O.*4X%2&(%5"#,7"385*8$% &(%+"89"83%&2%5&W"83%/,($#=%+(*,X,3*%&2%/,($#% ,89%,8V%&$.*(%4&89"$"&8%$.,$%5,V%,22*4$%$.*% /&)*(%$&&7^#%&/*(,$"&81%%L2%9,5,3*9=%.,W*%$.*% /&)*(%$&&7%(*/,"(*9%+*2&(*%'#*1 Many accidents
are caused by poorly maintained power tools.
6. P#*%$.*%/&)*(%$&&7=%,44*##&("*#%,89%$&&7%+"$#% *$41%"8%,44&(9,84*%)"$.%$.*#*%"8#$('4$"&8#=% $,X"83%"8$&%,44&'8$%$.*%)&(X"83%4&89"$"&8#% ,89%$.*%)&(X%$&%+*%/*(2&(5*91 Use of the
power tool for operations different from those
intended could result in a hazardous situation.
Page 3;&(%$*4.8"4,7%<'*#$"&8#=%/7*,#*%4,77%>?@@@?@AA?BCDC1Item 64120
Page 4
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This will ensure that the safety of the power tool is maintained.
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1. _&79%/&)*(%$&&7#%+V%"8#'7,$*9%3("//"83%#'(2,4*#% ).*8%/*(2&(5"83%,8%&/*(,$"&8%).*(*%$.*%4'$$"83% $&&7%5,V%4&8$,4$%."99*8%)"("83%&(%"$#%&)8%4&(91
Contact with a ″live″ wire will make exposed metal parts of the tool ″live″ and shock the operator.
2. The amount of actual torque may vary depending on the cleanness and condition of the threads and other factors. If tightening critical components, check the actual torque applied to the fastener with a mechanical torque wrench (not supplied).
3. Maintain labels and nameplates on the tool. These carry important safety information. If unreadable or missing, contact Harbor Freight Tools for a replacement.
4. Avoid unintentional starting. Prepare to begin work before turning on the tool.
5. Do not lay the tool down until it has come to a complete stop. Moving parts can grab the surface and pull the tool out of your control.
6. When using a handheld power tool, maintain a firm grip on the tool with both hands to resist starting torque.
7. Do not leave the tool unattended when it is plugged into an electrical outlet. Turn off the tool, and unplug it from its electrical outlet before leaving.
8. This product is not a toy. Keep it out of reach of children.
9. People with pacemakers should consult their physician(s) before use. Electromagnetic fields in close proximity to heart pacemaker could cause pacemaker interference or pacemaker failure. In addition, people with pacemakers should:
• Avoid operating alone.
• Do not use with power switch locked on.
• Properly maintain and inspect to avoid electrical shock.
• Properly ground power cord. Ground Fault Circuit Interrupter (GFCI) should also be implemented – it prevents sustained electrical shock.
10. The warnings, precautions, 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.
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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. 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 symptoms related to vibration (such as tingling, numbness, and white or blue fingers), seek medical advice as soon as possible.
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2. Do not smoke during use. Nicotine reduces the blood supply to the hands and fingers, increasing the risk of vibration-related injury.
3. Wear suitable gloves to reduce the vibration effects on the user.
4. Use tools with the lowest vibration when there is a choice.
5. Include vibration-free periods each day of work.
6. Grip tool as lightly as possible (while still keeping safe control of it). Let the tool do the work.
7. To reduce vibration, maintain the tool as explained in this manual. If any abnormal vibration occurs, stop use immediately.
Page 4 ;&(%$*4.8"4,7%<'*#$"&8#=%/7*,#*%4,77%>?@@@?@AA?BCDC1 Item 64120
Page 5
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3(&'89*91%%U&%8&$%5&9"2V%$.*%/&)*(%4&(9%/7'3%/(&W"9*9%)"$.%$.*%$&&71%%M*W*(%(*5&W*%$.*% 3(&'89"83%/(&83%2(&5%$.*%/7'31%%U&%8&$%'#*%$.*%$&&7%"2%$.*%/&)*(%4&(9%&(%/7'3%"#%9,5,3*91%%L2%9,5,3*9=%.,W*% "$%(*/,"(*9%+V%,%#*(W"4*%2,4"7"$V%+*2&(*%'#*1%%L2%$.*%/7'3%)"77%8&$%2"$%$.*%&'$7*$=%.,W*%,%/(&/*(%&'$7*$%"8#$,77*9%+V% ,%<',7"2"*9%*7*4$("4",81
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2. 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. [E**%`?J(&83%J7'3%,89%I'$7*$1\
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3. The tool must be plugged into an appropriate outlet, properly installed and grounded in accordance
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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 resistance path to carry electricity away from the user, reducing the risk of electric shock. [E**%`?J(&83%J7'3%,89%I'$7*$1\
with all codes and ordinances. The plug and outlet should look like those in the preceding illustration.
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1. 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.
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2. Double insulated tools may be used in either of the 120 volt outlets shown in the preceding illustration.%%%
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Page 6
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1. Grounded tools require a three wire extension cord. Double Insulated tools can use either
a two or three wire extension cord.
2. 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. [E**%G,+7*%F1\
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. [E**%G,+7*%F1\
4. 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. [E**%G,+7*%F1\
5. 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. [E**%G,+7*%F1\
6. 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.
7. Make sure the 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.
8. Protect the extension cords from sharp objects, excessive heat, and damp or wet areas.
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0 – 2.0 18 18 18 18 16
2.1 – 3.4 18 18 18 16 14
3.5 – 5.0 18 18 16 14 12
5.1 – 7.0 18 16 14 12 12
7.1 – 12.0 18 14 12 10 -
12.1 – 16.0 14 12 10 - -
16.1 – 20.0 12 10 - - -
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n0 xxxx/min.
Volts Alternating Current
Amperes
No Load Revolutions per Minute (RPM)
WARNING marking concerning Risk of Eye Injury. Wear ANSI-approved safety goggles with side shields.
Read the manual before set-up and/or use.
WARNING marking concerning Risk of Hearing Loss. Wear hearing protection.
WARNING marking concerning Risk of Fire. Do not cover ventilation ducts. Keep flammable objects away.
WARNING marking concerning Risk of Electric Shock. Properly connect power cord to appropriate outlet.
Page 6 ;&(%$*4.8"4,7%<'*#$"&8#=%/7*,#*%4,77%>?@@@?@AA?BCDC1 Item 64120
Page 7
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5,8',7%"847'9"83%,77%$*Z$%'89*(%#'+.*,9"83#%$.*(*"8%+*2&(*%#*$%'/%&(%'#*%&2%$."#%/(&9'4$1
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Electrical Rating 120 VAC / 60 Hz / 8.5 A
Motor No Load Speed
Maximum Torque 300 ft. lb.
Drive Size 1/2"
2600 RPM 3000 BPM
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Page 8
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1. Designate a work area that is clean and well-lit. The work area must not allow access by children or pets to prevent distraction and injury.
2. Route the power cord along a safe route to reach the work area without creating a tripping hazard or exposing the power cord to possible damage. The power cord must reach the work area with enough extra length to allow free movement while working.
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The Impact Wrench is equipped with a rocker-type Trigger that can switch between clockwise (forward) rotation to counterclockwise (reverse) rotation.
1. Press the desired Socket (sold separately) onto the Anvil.
2. Plug the Power Cord into a
120VAC / 60Hz grounded outlet.
3. Press the LOWER part of the Trigger for clockwise (FORWARD) rotation or the UPPER part of the Trigger for counterclockwise (REVERSE) rotation.
M&$*- Do not attempt to use both Trigger functions at the same time.
3. Secure loose workpieces using a vise or clamps (not included) to prevent movement while working.
4. There must not be objects, such as utility lines, nearby that will present a hazard while working.
OFPGLIMh To prevent injury: Use both hands to operate the Impact Wrench, keeping one hand on the Handle and the other hand on the Housing. Do not hold or touch impact sockets during use.
4. When finished, release the Trigger.
M&$*- The amount of actual torque may vary depending on the condition of the threads and other factors. If tightening critical components, check the actual torque applied to the fastener with a mechanical torque wrench (not supplied).
5. To prevent accidents, turn off the tool and disconnect its power supply after use. Clean, then store the tool indoors out of children’s reach.
Page 8 ;&(%$*4.8"4,7%<'*#$"&8#=%/7*,#*%4,77%>?@@@?@AA?BCDC1 Item 64120
Page 9
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1. S6;IK6%6FO_%PE6= inspect the general condition of the tool. Check for:
• loose hardware
• misalignment or binding of moving parts
• cracked or broken parts
• damaged electrical wiring
• any other condition that may
affect its safe operation.
2. F;G6K%PE6= wipe external surfaces of the tool with clean cloth.
3. QFKMLMRh%%L2%$.*%#'//7V%4&(9%&2%$."#%
/&)*(%$&&7%"#%9,5,3*9=%"$%5'#$%+*%(*/7,4*9% &87V%+V%,%<',7"2"*9%#*(W"4*%$*4.8"4",81
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Tool will not start. 1. Cord not connected.
2. No power at outlet.
3. Tool’s thermal reset breaker tripped (if equipped).
4. Internal damage or wear. (Carbon brushes or switch, for example.)
Tool operates slowly. Extension cord too long or
cord diameter too small.
Performance decreases over time.
Excessive noise or rattling.
Overheating. 1. Forcing tool to work too fast.
Carbon brushes worn or damaged. Replace Carbon Brushes.
Internal damage or wear. (Carbon brushes or bearings, for example.)
2. Blocked motor housing vents.
3. Motor being strained by long or small diameter extension cord.
1. Check that cord is plugged in.
2. Check power at outlet. If outlet is unpowered, turn off tool and check circuit breaker. If breaker is tripped, make sure circuit is right capacity for tool and circuit has no other loads.
3. Turn off tool and allow to cool. Press reset button on tool.
4. Have technician service tool and/ or replace Carbon Brushes.
Eliminate use of extension cord. If an extension cord is needed, use one with the proper diameter for its length and load. See Extension Cords in Grounding section on page 5.
Have technician service tool.
1. Allow tool to work at its own rate.
2. Wear ANSI-approved safety goggles and NIOSH-approved dust mask/respirator while blowing dust out of motor using compressed air.
3. Eliminate use of extension cord. If an extension cord is needed, use one with the proper diameter for its length and load. See Extension Cords in Grounding section on page 5.
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1 Screw ST4.9 x 50 4 2 Lock Washer 5 mm 4 3 Washer 5 mm 4 4 Rubber Sleeve 1 5 Aluminum Shell 1 6 O-Ring 1 7 Bushing 1 8 Washer 1 9 Drive Shaft 1
10 Ball Ø6.35 mm 2 11 Impact Block 1 12 Ball Bearing Race 24 13 Washer 1 14 Torque Spring 1 15 Intermediate Shaft 1
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16 Planetary Gear 3 17 Pin 3 18 Washer 1 19 Bearing 6002 2RS 1 20 Circlip 1 21 Ring Gear 1 22 Oil Seal Ring 1 23 Gear Box 1 24 Felt Seal Ring 1 25 Bearing 6001 2RS 1 26 Rotor 1 27 Bearing 608 RS 1 28 Bearing Boot 1 29 Air Deflector 1 30 Screw ST3.9 x 65 2
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31 Stator Spacer 1 32 Stator 1 33 Handle 1 34 Screw ST3.9 x 19 7 35 Trigger 1 36 Terminal Block 1 37 Power Cord Sheath 1 38 Power Cord 1 39 Housing 1 40 Carbon Brush Holder 2 41 Brush Tension Spring 2 42 Screw ST2.9 x 18 4 43 Carbon Brush 2 44 Motor End Cap 1
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M&$*- If product has no serial number, record month and year of purchase instead.
M&$*- Some parts are listed and shown for illustration purposes only,
and are not available individually as replacement parts.
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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 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 THE 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.
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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 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.
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