OPERATOR'S MANUAL
MANUEL de L'UTILISATEUR
MANUAL del OPERADOR
Cat. No.
No de cat.
6880
6890
HEAVY DUTY NIBBLERS
GRIGNOTEUSES INDUSTRIELLES
RECORT ADORA DE CHAP A DE UÑA VIBRATORIA PARA SER VICIO PESADO
TO REDUCE THE RISK OF INJURY, USER MUST READ AND UNDERSTAND OPERATOR'S
MANUAL.
AFIN DE RÉDUIRE LE RISQUE DE BLESSURES, L'UTILISATEUR DOIT LIRE ET BIEN
COMPRENDRE LE MANUEL DE L'UTILISATEUR.
PARA REDUCIR EL RIESGO DE LESIONES, EL USUARIO DEBE LEER Y ENTENDER EL
MANUAL DEL OPERADOR.
GENERAL POWER TOOL SAFETY WARNINGS
WARNING READ ALL SAFETY WARNINGS AND ALL INSTRUCTIONS. Failure
to follow the warnings and instructions may result in electric shock, fi re and/or serious
injury. Save all warnings and instructions for future reference. The term "power
tool" in the warnings refers to your mains-operated (corded) power tool or battery-operated
(cordless) power tool.
• Keep work area clean and well lit. Cluttered or
WORK AREA SAFETY
dark areas invite accidents.
• Do not operate power tools in explosive atmospheres, such as in the presence of fl ammable
liquids, gases or dust. Power tools create sparks
which may ignite the dust or fumes.
• Keep children and bystanders away while
operating a power tool. Distractions can cause
you to lose control.
ELECTRICAL SAFETY
• Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power
tools. Unmodifi ed plugs and matching outlets will
reduce risk of electric shock.
• Avoid body contact with earthed or grounded
surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric
shock if your body is earthed or grounded.
• 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 cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges
or moving parts. Damaged or entangled cords
increase the risk of electric shock.
• When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use
of a cord suitable for outdoor use reduces the risk
of electric shock.
• If operating a power tool in a damp location
is unavoidable, use a residual current device
(RCD) protected supply. Use of an RCD reduces
the risk of electric shock.
PERSONAL SAFETY
• Stay alert, watch what you are doing and use
common sense when operating a power tool. Do
not use a power tool while you are tired or under
the infl uence of drugs, alcohol or medication. A
moment of inattention while operating power tools
may result in serious personal injury.
• Use personal protective equipment. Always
wear eye protection. Protective equipment such
as dust mask, non-skid safety shoes, hard hat, or
hearing protection used for appropriate conditions
will reduce personal injuries.
• Prevent unintentional starting. Ensure the
switch is in the off-position before connecting
to power source and/or battery pack, picking
up or carrying the tool. Carrying power tools with
your fi nger on the switch or energising power tools
that have the switch on invites accidents.
• Remove any adjusting key or wrench before
turning the power tool on. A wrench or a key 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. This enables better control
of the power tool in unexpected situations.
• Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing and gloves
away from moving parts. Loose clothes, jewel-lery or long hair can be caught in moving parts.
• If devices are provided for the connection of
dust extraction and collection facilities, ensure
these are connected and properly used. Use of
dust collection can reduce dust-related hazards.
POWER TOOL USE AND CARE
• Do not force the power tool. Use the correct
power tool for your application. The correct
power tool will do the job better and safer at the
rate for which it was designed.
• Do not use the power tool if the switch does not
turn it on and off. Any power tool that cannot be
controlled with the switch is dangerous and must
be repaired.
• Disconnect the plug from the power source
and/or the battery pack from the power tool
before making any adjustments, changing
accessories, or storing power tools. Such
preventive safety measures reduce the risk of
starting the power tool accidentally.
• Store idle power tools out of the reach of children and do not allow persons unfamiliar with
the power tool or these instructions to operate
the power tool. Power tools are dangerous in the
hands of untrained users.
• Maintain power tools. Check for misalignment
or binding of moving parts, breakage of parts
and any other condition that may affect the
power tool’s operation. If damaged, have the
power tool repaired before use. Many accidents
are caused by poorly maintained power tools.
• Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
• Use the power tool, accessories and tool bits
etc., in accordance with these instructions,
taking into account the working conditions and
the work to be performed. Use of the power tool
for operations different from those intended could
result in a hazardous situation.
SERVICE
• Have your power tool serviced by a qualifi ed
repair person using only identical replacement
parts. This will ensure that the safety of the power
tool is maintained.
SPECIFIC SAFETY RULES
• Hold tools by insulated gripping surfaces when
performing an operation where the cutting tool
may contact hidden wiring or its own cord.
Contact with a “live” wire will make exposed metal
parts of the tool “live” and shock the operator.
• Maintain labels and nameplates. These carry
important information. If unreadable or missing,
contact a MILWAUKEE service facility for a free
replacement.
• WARNING: Some dust created by power sanding,
sawing, grinding, drilling, and other construction
activities contains chemicals known to cause
cancer, birth defects or other reproductive harm.
Some examples of these chemicals are:
• lead from lead-based paint
• crystalline silica from bricks and cement and other
masonry products, and
• 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 fi lter out microscopic particles.
FUNCTIONAL DESCRIPTION
1. Gear case
2. Power cord
3. Toggle switch
(not shown)
4. Motor housing
5. Side handle
hole
6. Punch set
screw (not
shown)
7. Punch
8. Die screw and
lockwasher
(not shown)
9. Die
10. Stripper
11. Die holder
12. Plastic plug
13. Paddle switch
14. Collar
12
11
10
9
15. Die support
16. Cap screw and Lockwasher
Cat. No. 6880
1
5
6
7
8
SYMBOLOGY
Double Insulated
Volts
Volts Alternating Current/
Direct Current
Amps
SPM
Strokes per Minute
Underwriters Laboratories, Inc.,
United States and Canada
SPECIFICATIONS
Cat.
Volts
No.
AC/DC ACapacity
68801204 3.4 mm (10 GA)1000
68901203.8 1.5 mm (16 GA)1900
Cat. No. 6890
2
3
4
1
14
15
7
9
16
Strokes Per
13
Minute
2
4
2
3
GROUNDING
WARNINGImproperly connecting the
grounding wire can result in the risk of electric shock. Check with a qualifi ed electrician
if you are in doubt as to whether the outlet is
properly grounded. Do not modify the plug
provided with the tool. Never remove the
grounding prong from the plug. Do not use
the tool if the cord or plug is damaged. If
damaged, have it repaired by a MILWAUKEE
service facility before use. If the plug will not
fi t the outlet, have a proper outlet installed by
a qualifi ed electrician.
Grounded Tools: Tools with Three Prong Plugs
Tools marked “Grounding Required” have a three
wire cord and three prong grounding plug. The
plug must be connected to a properly grounded
outlet (See Figure A). 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.
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.
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
Figure A.
Double Insulated Tools:
Tools with Two Prong Plugs
Tools marked “Double Insulated” do not require
grounding. They have a special double insulation
system which satisfi es OSHA requirements and
complies with the applicable standards of Underwriters Laboratories, Inc., the Canadian Standard Association and the
National Electrical Code. Double
Insulated tools may be used in either of the 120 volt outlets shown in
Figures B and C.
Fig. A
Fig. B
Fig. C
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. Refer to the table shown to determine the
required minimum wire size.
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. When using more than one extension
cord to make up the total length, be 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 wire size.
Guidelines for Using Extension Cords
• If you are using an extension cord outdoors, be
sure it is marked with the suffi x “W-A” (“W” in Cana-
da) to indicate that it is acceptable for outdoor use.
• Be sure your extension cord is properly wired
and in good electrical condition. Always replace a
damaged extension cord or have it repaired by a
qualifi ed person before using it.
• Protect your extension cords from sharp objects,
excessive heat and damp or wet areas.
Recommended Minimum Wire Gauge
For Extension Cords*
Nameplate
Amperes
0 - 2.0
2.1 - 3.4
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 fi ve volts at
150% of the rated amperes.
Extension Cord Length
25'50'75'100' 150'
18
18
18
18
18
18
18
16
14
12
18
18
16
14
12
10
18
16
14
12
10
--
16
14
12
10
16
14
12
12
--
--
--
--
--
READ AND SAVE ALL
INSTRUCTIONS FOR FUTURE USE.
EXTENSION CORDS
ASSEMBLY
WARNING To reduce the risk of injury,
always unplug tool before attaching or removing accessories or making adjustments. Use
only specifi cally recommended accessories.
Others may be hazardous.
Punch and Die Replacement
Dies should be replaced about every third time the
punch is changed, or as necessary. A plate wrench
is provided with tool.
1. Unplug tool and place on a level surface.
2. Loosen collar with plate wrench. Remove collar
and die support.
3. Punch Removal: Loosen the set screw with 2.5
mm allen wrench. Remove punch and discard.
4. Punch Installation: Align punch detent with set
screw in punch holder. Tighten set screw securely to below the surface of the punch holder.
5. Die Removal: Remove cap screws and lockwashers with 2.5 mm allen wrench. Discard die.
6. Die Installation: Place die in position. Screw
holes in die and die support will align when die
is properly seated. Replace cap screws and
lockwashers and tighten securely.
7. Position die support in desired direction of cut
using locating pin. Replace collar and tighten
securely.
Fig. 1
1
5
7
8
9
11
2
3
1. Locating pin
4
2. Gearcase
3. Punch holder
6
4. Set screw
5. Detent hole
6. Punch
7. Locating notches
8. Die support
9. Die
10. Lockwasher
11. Cap screws
12. Collar
10
12
Punch and Die Replacement (Cat. No. 6880)
Punch and die should be changed as a set. A 4
mm allen wrench is required to remove and tighten
screws in punch, die and stripper. All screws, washers, lockwashers and plastic cap removed during
servicing will be required for reassembly.
1. Unplug tool and place on a level surface.
2. Stripper Removal: Remove screws, fl at wash-
ers, lockwashers and stripper.
3. Die Removal: Remove screws, lockwashers and
die. Discard die.
4. Punch Removal: Remove plastic plug and insert
screwdriver in slot at end of spindle shaft. Rotate
shaft until punch retaining set screw is visible
through hole in rear of die holder. Remove set
screw and punch. Discard punch.
5. Punch Installation: To install new punch, align
punch with "D" slot. The punch is to be inserted
until it bottoms in hole. Replace set screw and
tighten securely. Replace plastic cap in gear case.
6. Die Installation: To install new die, align screw
holes in die with holes in die holder. Replace
lockwashers and screws and tighten securely.
7. Stripper Installation: To replace stripper, align
screw holes in stripper with holes in die holder.
Replace lockwashers, fl at washers and screws.
Adjust stripper (refer to Stripper Adjustment
under 'Operation'). Tighten screws securely.
If there are any problems with removal or installation of punch and die, contact your nearest
MILWAUKEE service facility. Return tool and parts
to that facility, if necessary.
Side Handle (Cat. No. 6880)
Unplug the tool before installing or removing the side
handle. The side handle can be attached to either
side of the gear case for right or left handed operation.
Fig. 2
1
2
1. Plastic
plug
2. Spindle shaft
3. Gear case
4. Punch detent
3
5. Punch
6. Lockwasher
7. Screw
8. Flat Washer
9. Stripper
10. Die
11. Screw
12. Lockwasher
13. Die Holder
14. Set Screw
4
6
5
15
14
7
8
9
10
13
12
11
15. Piston
4
5
OPERATION
WARNING To reduce the risk of injury,
always unplug tool before attaching or removing accessories or making adjustments. Use
only specifi cally recommended accessories.
Others may be hazardous.
WARNING To reduce the risk of injury,
wear safety goggles or glasses with side shields.
Toggle Switch (Cat. No. 6880)
The tool is equipped with a toggle switch, located at
the bottom of the motor housing. To start the tool,
move the switch to the 'ON' position. To stop the
tool, move the switch to the 'OFF' position. Make
sure the switch is in the 'OFF' position before plugging the tool into an outlet.
Paddle Switch (Cat. No. 6890)
The tool is equipped with a momentary contact
(deadman) paddle switch located at the bottom
of the motor housing. To start the tool, grasp the
motor housing and fi rmly squeeze the paddle. To
stop the tool, release the paddle.
Cutting
Keep the tool at right angles to the surface of the
workpiece. Use an even forward pressure to ensure
effi cient cutting. Cutting line should be lubricated
before cutting. Place a few drops of oil on punch
and die every 12-15 feet of cutting. If tool has diffi culty cutting metal or leaves a rough edge, change
punch and die (see "Tool Assembly").
Stripper Adjustment
To adjust stripper, use 4 mm allen wrench and
loosen screws. Adjust stopper until it clears material
being cut. If material vibrates or there is unnecessary movement during cutting, readjust stripper.
ACCESSORIES
WARNING T o reduce the risk of injury ,
always unplug the tool before attaching or
removing accessories. Use only specifi cally
recommended accessories. Others may be
hazardous.
For a complete listing of accessories refer to your
MILWAUKEE Electric Tool catalog or go on-line
to www.milwaukeetool.com. To obtain a catalog,
contact your local distributor or a service center.
MAINTENANCE
WARNING To reduce the risk of
injury, always unplug your tool before
performing any maintenance. Never disassemble the tool or try to do any rewiring
on the tool’s electrical system. Contact a
MILWAUKEE service facility for ALL repairs.
Maintaining Tools
Keep your tool in good repair by adopting a regular
maintenance program. Before use, examine the
general condition of your tool. Inspect guards,
switches, tool cord set and extension cord for
damage. Check for loose screws, misalignment,
binding of moving parts, improper mounting, broken parts and any other condition that may affect
its safe operation. If abnormal noise or vibration
occurs, turn the tool off immediately and have the
problem corrected before further use. Do not use a
damaged tool. T ag damaged tools “DO NOT USE”
until repaired (see “Repairs”).
Under normal conditions, relubrication is not necessary until the motor brushes need to be replaced.
After six months to one year, depending on use,
return your tool to the nearest MILWAUKEE service
facility for the following:
• Lubrication
• Brush inspection and replacement
• Mechanical inspection and cleaning (gears, spindles, bearings, housing, etc.)
• Testing to assure proper mechanical and electrical
operation
WARNING T o reduce the risk of injury ,
electric shock and damage to the tool, never
immerse your tool in liquid or allow a liquid
to fl ow inside the tool.
Cleaning
Clean dust and debris from vents. Keep the tool
handles clean, dry and free of oil or grease. Use only
mild soap and a damp cloth to clean your tool since
certain cleaning agents and solvents are harmful to
plastics and other insulated parts. Some of these
include: gasoline, turpentine, lacquer thinner, paint
thinner, chlorinated cleaning solvents, ammonia and
household detergents containing ammonia. Never
use fl ammable or combustible solvents around tools.
Repairs
If your tool is damaged, return the entire tool to the
nearest service center.
LIMITED WARRANTY - USA AND CANADA
Every MILWAUKEE power tool (including cordless product – tool, battery pack(s) - see separate & distinct
CORDLESS BATTERY PACK LIMITED WARRANTY statements & battery charger and Work Lights*) is warranted to the original purchaser only to be free from defects in material and workmanship. Subject to certain
exceptions, MILWAUKEE will repair or replace any part on an electric power tool which, after examination, is
determined by MILWAUKEE to be defective in material or workmanship for a period of fi ve (5) years* after the
date of purchase unless otherwise noted. Return of the power tool to a MILWAUKEE factory Service Center
location or MILWAUKEE Authorized Service Station, freight prepaid and insured, is required. A copy of the
proof of purchase should be included with the return product. This warranty does not apply to damage that
MILWAUKEE determines to be from repairs made or attempted by anyone other than MILWAUKEE authorized
personnel, misuse, alterations, abuse, normal wear and tear, lack of maintenance, or accidents.
*The warranty period for, Job Site Radios, M12™ Power Port, M18™ Power Source, and T rade T itan™ Industrial Work Carts is one (1) year from the date of purchase. The warranty period for a LED Work Light and LED
Upgrade Bulb is a limited LIFETIME warranty to the original purchaser only, if during normal use the LED bulb
fails the Work Light or Upgrade Bulb will be replaced free of charge.
*This warranty does not cover Air Nailers & Stapler, Airless Paint Sprayer, Cordless Battery Packs, Gasoline
Driven Portable Power Generators, Hand Tools, Hoist – Electric, Lever & Hand Chain, M12™ Heated Jackets,
Reconditioned product and Test & Measurement products. There are separate and distinct warranties available for these products.
Warranty Registration is not necessary to obtain the applicable warranty on a MILWAUKEE power tool product.
The manufacturing date of the product will be used to determine the warranty period if no proof of purchase is
provided at the time warranty service is requested.
ACCEPTANCE OF THE EXCLUSIVE REPAIR AND REPLACEMENT REMEDIES DESCRIBED HEREIN IS A
CONDITION OF THE CONTRACT FOR THE PURCHASE OF EVERY MILWAUKEE PRODUCT . IF YOU DO NOT
AGREE TO THIS CONDITION, YOU SHOULD NOT PURCHASE THE PRODUCT. IN NO EVENT SHALL MIL-WAUKEE BE LIABLE FOR ANY INCIDENTAL, SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES, OR FOR
ANY COSTS, ATTORNEY FEES, EXPENSES, LOSSES OR DELA YS ALLEGED T O BE AS A CONSEQUENCE
OF ANY DAMAGE TO, FAILURE OF, OR DEFECT IN ANY PRODUCT INCLUDING, BUT NOT LIMITED TO, ANY
CLAIMS FOR LOSS OF PROFITS. SOME STA TES DO NOT ALLOW THE EXCLUSION OR LIMIT A TION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMIT A TION OR EXCLUSION MA Y NOT APPL Y
TO YOU. THIS W ARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS WARRANTIES, WRITTEN
OR ORAL. TO THE EXTENT PERMITTED BY LAW, MILWAUKEE DISCLAIMS ANY IMPLIED WARRANTIES,
INCLUDING WITHOUT LIMIT A TION ANY IMPLIED W ARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PAR TICULAR USE OR PURPOSE; TO THE EXTENT SUCH DISCLAIMER IS NOT PERMITTED BY LAW , SUCH
IMPLIED WARRANTIES ARE LIMITED TO THE DURATION OF THE APPLICABLE EXPRESS WARRANTY AS
DESCRIBED ABOVE. SOME ST A TES DO NOT ALLOW LIMITA TIONS ON HOW LONG AN IMPLIED WARRANTY
LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU, THIS WARRANTY GIVES YOU SPECIFIC
LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE.
This warranty applies to product sold in the U.S.A. and Canada only.
Please consult the ‘Service Center Search’ in the Parts & Service section of MILWAUKEE’s website www.mil-
waukeetool.com or call 1.800.SAWDUST (1.800.729.3878) to locate your nearest service facility for warranty
and non-warranty service on a Milwaukee electric power tool.
LIMITED WARRANTY - MEXICO, CENTRAL AMERICA AND CARIBBEAN
TECHTRONIC INDUSTRIES' warranty is for 5 year since the original purchase date.
This warranty card covers any defect in material and workmanship on this Power Tool.
To make this warranty valid, present this warranty card, sealed/stamped by the distributor or store where you purchased the product, to the Authorized Service Center (ASC). Or , if this card has not been sealed/stamped, present the
original proof of purchase to the ASC.
Call toll-free 1 800 832 1949 to fi nd the nearest ASC, for service, parts, accessories or components.
Procedure to make this warranty valid
Take the product to the ASC, along with the warranty card sealed/stamped by the distributor or store where you purchased the product, and there any faulty piece or component will be replaced without cost for you. We will cover all
freight costs relative with this warranty process.
Exceptions
This warranty is not valid in the following situations:
a) When the product is used in a different manners from the end-user guide or instruction manual.
b) When the conditions of use are not normal.
c) When the product was modifi ed or repaired by people not authorized by TECHTRONIC INDUSTRIES.
Note: If cord set is damaged, it should be replaced by an Authorized Service Center to avoid electric risks.
SERVICE AND ATTENTION CENTER
Model:
Av Presidente Mazarik 29 Piso 7, 11570 Chapultepec Morales
Miguel Hidalgo, Distrito Federal, Mexico
Date of Purchase:
Ph. 52 55 4160-3547
Distributor or Store Stamp:
IMPORTED AND COMMERCIALIZED BY:
TECHTRONIC INDUSTRIES MEXICO, .S.A. DE C.V.
Av Presidente Mazarik 29 Piso 7, 11570 Chapultepec Morales
Miguel Hidalgo, Distrito Federal, Mexico
6
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