Tools Saw User Manual
6 7
Grounded tools require a three wire exten-
sion 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 ex-
ample, 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 out-
doors, 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 prop-
erly 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.
Recommended Minimum Wire Gauge
for Extension Cords*
Extension Cord Length
* Based on limiting the line voltage drop to
fi ve volts at 150% of the rated amperes.
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
25'
18
18
18
18
16
14
12
75'
18
18
16
14
12
10
100'
18
16
14
12
10
150'
16
14
12
12
50'
18
18
18
16
14
12
10
EXTENSION CORDS
18
17
19
21
15
3
14
1
FUNCTIONAL DESCRIPTION
Symbology
Double Insulated
Underwriters Laboratories, Inc.,
United States and Canada
Volts Alternating Current
No Load Revolutions per Minute (RPM)
Amps
Specifi cations
Cat. No.
Blade
Size
Volts
AC
No Load
RPM
Arbor
Max Cutting
Depth at 90˚
Max Cutting
Depth at 51.5˚
6477-20
6577-20
7-1/4" 120 4,400 Diamond 0 to 2-3/8" 0 to 1-1/2"
4
5
2
8
12
16
20
6
7
9
10
11
13
1. Oil plug
2. Top handle
3. Motor housing
4. Trigger switch
5. Depth adjusting lever
6. Lower guard lever
7. Blade bolt
8. Lower guard
9. Spindle washer
10. Rip fence slot
11. Sighting notches
12. Shoe
13. Miter adjusting lever
14. Miter scale
15. Spindle lock button
16. Upper guard
17. Oil level window
18. Rafter hook
19. 51.5˚ Override button
20. Depth of cut scale
21. Wrench storage
WARNING
TOOL ASSEMBLY
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.
Selecting Blade
Always use sharp blades. Dull blades tend to
overload the tool and increase the chance of
kickback (see “Preventing Kickback”). A com-
bination blade is included with your tool for
general use in wood. Select the right blade
for your job. Only use blades with diamond
arbors, and read the manufacturer’s instruc-
tions before use.
Fig. 1
Rip & Crosscut
A multi-purpose blade for ripping,
cross cutting and mitering in hard-
woods, softwoods, plywood and
composition materials.
Framing-Rip
Designed for fast and accurate
ripping along the grain in hard-or
softwoods where a smooth cross
cut is not necessary.
Plywood-Veneer
Recommended for cutting ply-
wood, composition materials and
all types of wood where a slightly
smoother fi nish is needed.
Finish & Trim
Especially designed for cross
cutting and mitering in materials
where a very smooth cut is neces-
sary. Also cuts aluminum.
WARNING
Only use accessories with maxi-
mum speed rating at least as high
as nameplate RPM of tool.