820 - H.D. Undercut Saw
Parts Diagram
O
1
No. 820 Heavy-Duty Undercut Saw
O
B
5-O
C
O Y
1555-G
A1
1555-O
X
H
I
F1
J
I
G
G1
G1
O
J
P
P ND1
O
F1
NY
N
1812-O
G1
K
1555-I
1812-R
G
1812-Q
L
OLD
SPANNER
K D1
1810-J
E1
1810-J
B1555-I
X
D1
Q1
OLD HEX
E1
L1
1812-R
X
H
New
Internal
Thread
blade clamp
D
E
NO. 820 HEAVY-DUTY UNDERCUT SAW
Order No.
Description
1820-A1**
1820-B
1820-C
1820-D1
1820-E1
1820-F*
1820-F1
1820-G*
1820-G1
1820-H
1820-I
1820-J
1820-K
NEW Power Unit, 120 Volts
Plastic Handle
Handle Fastener Set (4)
NEW Dust Control Height Adjuster
NEW Dust Control Housing
OLD Depth Gauge
NEW Dust Control Depth Gauge
OLD Guide Washer & Fastener Set (10)
NEW Guide Washer & Fastener Set (8)
Housing Fastener Set (4)
Blade Guard
Blade Guard Snap Ring
Blade Driver
1555-G
1812-P
F1 1812-O
1812-O
1812-Q
1812-R
A1
X
F1
F1
I
OLD DEPTH GAUGE
PRE-DUST CONTROL
L
X
KK
Q1 F1
JDUST CONTROL RETROFIT:
1555-I
L1 1555-I
FOR EFFECTIVE DUST CONTROL
1812-P
1812-R
1812-R
1812-Q
1812-R
K
1555-I
L
DISCONTINUED:
DISCONTINUED:
1812-Q NO. 1820-E OLD HOUSING
NO. 1820-A & AV OLD POWER UNIT
Q1
(WITH EXTERNAL THREAD)
REPLACE WITH:
L1
REPLACE WITH:
1812-R NO. 1820-E1 NEW HOUSING AND
NO. 1820-A1 NEW POWER UNIT
NO. 1820-G1 NEW GUIDE WASHER
(WITH INTERNAL THREAD)
& FASTENER SET (8). (ORDER BOTH.)
COMES WITH NOS. 1812-O, P, Q & R
AT NO ADDITIONAL CHARGE
1820-L
1820-L1
1820-M
1820-N
1820-O
1820-P
1820-Q1
1820-R
1820-R1
1820-S
1820-T
1820-U
1820-V
OLD Spanner Wrench
OLD Hex Blade Wrench
Carrying Case (not shown)
Dust Port w/Screws
Power Cord (not shown)
Dust Port Cap
OLD Hex Blade Clamp Nut
Switch Type A, Red/Orange (not shown) Discontinued
Switch Type B, Black (not shown)
Brush Set (not shown)
Carrying Case Latch Set (2) (not shown)
Carrying Case Handle (not shown)
Brush Holder Assembly plus Brushes
(not shown)
LL K
1555-I
NOS. 1820-D1, E1, F1, X
J 1812-Q
1812-Q
1812-O
F1
K
F
1555-I
ORDER ALL OF THE FOLLOWING:
1812-O
I
1812-P
1812-P
F
X
X
1555-G
II
JJ
1555-G
F
F
F1
NEW GAUGE
F1
1812-O
1812-P
OLD
EXTERNAL
THREAD
F 1555-G
INTERNAL
THREAD
DISCONTINUED PARTS / REPLACE WITH:
A
A1
X
1555-O
1555-O C
I
F1
1555-O
F1
H
1555-O
1810-J
C
A1
NEW
X A1J
1810-J
L1
A1
A1
F1
X
1555-G
C
C
1555-O
E1E1
HH
OLD EXternal THread blade
clamp PARTS
Q1
A1
B
1810-J
(K IS COMMON)
1812-Q
1812-P
H
L
OLD FOR 1820-D
1812-P
N
B
E1
D1D1
P
B
X
P
G
Y
N
F1
NEW GUIDE WASHG1
ER & FASTENERS
FOR 1820-D1
1812-O
B
X
X
GG
C
F
P
F
G1
F1
A
B
Y
O
1555-G
O Y
A1
C
10-J
A
B
Q1
Q1
L1
L1
Q1
L
L1
DISCONTINUED:
NO. 1820-D OLD HEIGHT
ADJUSTER
REPLACE WITH:
NO. 1820-D1 NEW DUST CONTROL HEIGHT ADJUSTER
1820-W
Switch Conversion Kit (not shown)
1820-X
NEW Dust Control Three-Arm Knob
1820-Y
Power Cord Strain Relief Only
1820-Z
Return Spring Screw Only (not shown)
1555-G* OLD Depth Gauge Three-Arm Knob
1555-I
OLD Blade Clamp Nut
1555-O
Set Screw
1810-J
Blade Guard Spring
1812-O** Blade Spacer
1812-P** Blade Clamp
1812-Q** Blade Screw
1812-R** Allen® Wrench
* For saws produced before 01/24/05
** For saws with 1820-A1 power unit (spindle w/
internal thread) produced after 2/2006
1155 Wrigley Way • Milpitas, CA 95035-5426 • Phone: (408) 946-6100 • Fax: (408) 946-4268
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