Milwaukee Tool 6852-20 User Manual
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4
5
SPECIFIC SAFETY RULES
• 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 spe-
cially designed to fi lter out microscopic particles.
FUNCTIONAL DESCRIPTION
1
2
3
4
5
6
7
8
9
1. Shear
head
2. Gear case collar
3 Handle
4. Lock
button
5. Trigger
Cat. No. 6852-20
Cat. No.
48-08-0500
Cat. No. 6853
1
10
11
12
13
6. Cap
screws
7. Center
blade
8. Side
blades
9. Eccentric
bushing
10. Bearing
11. Washer (large)
12. Washer (small)
13. Spindle
Fig. B Fig. C
Fig. A
GROUNDING
WARNING
Improperly connecting the
grounding wire can result in the risk of elec-
tric 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 accord-
ance 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 insula-
tion system which satisfi es OSHA requirements
and complies with the applicable standards of
Underwriters Laboratories, Inc.,
the Canadian Standard Asso-
ciation and the National Elec-
trical Code. Double Insulated
tools may be used in either of
the 120 volt outlets shown in
Figures B and C.
SPECIFICATIONS
Capacities
Cat. No.
Volts
AC SPM
Cutting
Speed
Minimum
Cutting Radius
Steel
Stainless Steel
6852-20
6853
120
120
0 - 2500
0 - 2500
15 ft/min
N/A
7"
NA
1.2 mm
18 gauge (0.0478")
N/A
.9 mm
20 gauge (0.0360")
N/A
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
Canada) 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.
READ AND SAVE ALL
INSTRUCTIONS FOR FUTURE USE.
* Based on limiting the line voltage drop to fi ve volts at
150% of the rated amperes.
EXTENSION CORDS
Recommended Minimum Wire Gauge
For Extension Cords*
Extension Cord Length
Nameplate
Amperes
25'
50'
75'
100'
150'
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
18
18
18
18
16
14
12
18
18
18
16
14
12
10
18
18
16
14
12
10
--
18
16
14
12
10
--
--
16
14
12
12
--
--
--
ASSEMBLY
WARNING
To reduce the risk of injury,
always unplug tool before changing or re-
moving accessories. Only use accessories
specifi cally recommended for this tool. Others
may be hazardous.
Attaching and Removing the Shear Head
1. Place the shear head on the gear case collar of
the tool.
2. Align the shear head and tool to the desired
angle.
3. Tighten the three cap screws with the wrench
provided. Be sure the screws are securely tight-
ened before using the tool.
4. To remove, loosen the three cap screws and
fi rmly pull the shear
head forward, twist-
ing slightly.
Applying Lubricant
When necessary, ap-
ply a small amount of
MILWAUKEE type "E"
grease to the flats in
the U-shaped area of
the center blade.
Adjusting the Shear Head
1. Loosen the three (3) cap screws.
2. Align the shear head and tool to the desired
angle. Move the left blade forward or backward
to adjust the curl of waste material.
3. Tighten the three (3) cap screws with the wrench
provided. Be sure the screws are securely tight-
ened before using the tool.
Flats
Left blade
Center blade
SYMBOLOGY
Double Insulated
Amperes
Volts
Alternating Current
SPM
Strokes Per Minute (SPM)
Underwriters Laboratories, Inc.
United States and Canada
Underwriters Laboratories, Inc.
Recognized Component