1812-P
18
1812-Q
01
19
03
02
04
04
10
03
11
14
1820-R1
1820-S
1820-O
1820-Y
1820-N
1820-P
15
16
1820-H
17
22
22
08
21
20
1812-O
1555-P
1812-R
NO. 825 HEAVY-DUTY UNDERCUT SAW
Order No. Description
Order No. Description
1825-01
Power Unit, 120 V
1825-01V Power Unit, 220V
1825-02 Ratchet Handle
1825-03 Handle Three-Arm Knobs (2)
1825-04 Handle Threaded Studs (2)
1825-08
Depth Gauge Three-Arm
Knob
1825-10 Height Adjuster Three-Arm
Knob & Fasteners (5)
1825-11 Guide Washer &
Fasteners (4)
1825-14 Height Adjuster
1825-15 Housing
1825-16 Depth Gauge & Fasteners (2)
1825-17 Stopper & Screw
1825-18 Hooked Spring & Screw
1825-19 Blade Guard Sleeve
1825-20 Blade Guard
1825-21 Flared Spring & Screw
1825-22 Handle Washers (2)
1820-H
Housing Fastener Set (4)
1820-N
Dust Port w/Screws (4)
1820-O
Power Cord Only
1820-P
Dust Port Cap
1820-R1
Switch Type B, Black
1820-S
Brushes (not shown)
1820-V
Brush Holder Assembly plus
Brushes (not shown)
1820-Y
Strain Relief Only
1555-P
Snap Ring
1812-O
Blade Spacer
1812-P
Blade Clamp
1812-Q
Blade Screw
1812-R
5mm Allen® Wrench
NOTE: The maximum thickness of cut is 1
5
/
8
", which
is adequate for most doors. Check for adequate depth
of cut before starting. Thicker doors may require cuts
from both sides of the door. Take care not to leave a thin
remnant of door on the opposite side, which can easily
break off and crack the veneer. Also, check that the
floor is at the same elevation on both sides of the door,
or additional height adjustment may be required.
The maximum height of cut is one inch. To cut off
higher than one inch, place a flat sheet of plywood
underneath the saw.
INSTRUCTION
MANUAL
REPLACEMENT PARTS
Some dust created by power sanding, sawing, grinding,
drilling, and other construction activities contains chemi-
cals known to the State of California to cause cancer, birth
defects or other reproductive harm. Some examples of
these chemicals are:
lead from lead-based paints,
crystalline silica from brick, 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 filter out microscopic particles.
GUARANTEE
This Crain No. 825/825V Heavy Duty Undercut Saw
is guaranteed to be free of defects in workmanship
and quality of materials for a period of one year.
Any parts of this saw found defective subject to the
guarantee will be replaced at no charge. Credit in
full or part cannot be extended by the distributor,
nor will a new saw be given as a replacement or
loaner.
Saws subject to this warranty must be accompanied
by same, returned freight PREPAID to Milpitas, CA,
and must be in assembled condition.
DATE OF MFG.
Printed by: HF
FORM F1825
-
Rev.02/10
Milpitas, CA 95035 TEL: (408) 946-6100
www.craintools.com
CRAIN CUTTER CO., INC.
SPECIFICATIONS:
POWER UNIT
Model No. 825
Model No. 825V
Voltage:
120VAC, 60 HZ.
220VAC, 50HZ
Construction:
Double Insulated
Double Insulated
Plug Type:
3-Prong Plug
UK Plug
Amperes:
8.15 Amps
4.1 Amps
Wattage:
930 Watts
930 Watts
No Load Speed:
6,500 RPM
6,500 RPM
Max Depth of Cut:
1
5
/
8
"
1
5
/
8
"
Max. Height of Cut:
1"
1"
Toe Space Cutting Specifications:
Minimum Height / Maximum Depth:
3
1
/
2
" / 3
1
/
2
"
3
1
/
2
" / 3
1
/
2
"
Gross Weight:
17.4 LBS.
17.4 LBS.
Replacement Blades for both No. 825 / No. 825V: #821 Carbide-Tipped Blade, #805 Masonry
Blade, #822 Diamond Blade
WARNING:
Take precautions necessary
for veneer doors and check
door thickness as described
above (under "Door Cutting").
Pocket door cutting requires
two people. One must hold
the saw down and in a fixed
position, while the other per-
son slowly pulls the door
into the blade.
DO NOT LIFT
DOOR OR THE SAW WHILE
CUTTING OR KICKBACK MAY RESULT!
Remove any unfinished area at the bottom of the
pocket door with a hand saw, following along in the
pre-established cut.
If saw is dropped, the blade guard may be bent or otherwise
damaged, restricting full return. Sawdust that accumulates be-
hind the blade guard will cause it to become clogged, especially
drywall dust. Check operation of the blade guard before each
use. Do not use the saw if the blade guard does not operate
properly. When not in use, store saw in the custom carrying
case. The saw motor may run even if the switch malfunctions,
causing the motor to not switch off. Do not use saw if the
switch malfunctions. Repair the switch immediately!
MAINTENANCE:
Figure 16
MASONRY, STONE, OR TILE UNDERCUTTING:
POCKET DOOR CUTTING:
The No. 805 Masonry Blade
is primarily used for cutting
brick. It is not for use on tile
or stone. Use the No. 822
Diamond Blade for cutting
brick, tile or stone.
Masonry, stone, and tile undercutting creates a lot of
dust. We strongly recommend the operator wear a dust
mask and place a light cloth over the air intake on the
motor. This will prolong the life of the saw.
DO NOT use this saw for cutting steel or aluminum. Sparks
can cause fire in the wall behind the door casing.
Figure 17
KICKBACK HAZARDS:
•
THIS SAW PLUNGE-STARTS. PLUNGE SLOWLY BE-
FORE PUSHING FORWARD!
•
KEEP RPMs HIGH. DON’T FORCE THE SAW, ESPE-
CIALLY WHEN NAILS MAY BE PRESENT.
•
HEIGHT ADjUSTMENT: KEEP THE BLADE HOUS-
ING FLAT ON LEVEL FLOORS, AND KEEP BLADE
PARALLEL TO THE FLOOR AT ALL TIMES.
•
ALWAYS PUSH SAW AGAINST BLADE ROTATION.
NEVER PULL TOWARDS YOU OR RUN IN REVERSE.
WARNINGS:
KEEP KNEES AND OTHER
BODY PARTS OUT OF KICK
BACK ARC.
KNEEL TO THE SIDE!
DO NOT USE STANDING UP!
SAFE OPERATING POSITION:
A
RC
CUTTING DIRECTION
No. 825/825V
HEAVY-DUTY UNDERCUT SAW
CAUTION!
BLADE EXPOSED
KEEP HANDS
& FEET AWAY
FROM CUT!
PULL DOOR
IN THIS
DIRECTION
HOLD SAW
STATIONARY
Open the door to the maxi-
mum, away from the case-
ments. Work from the inside
of the door outward, away
from the hinges. To avoid
splintering veneer doors, it
may be advisable to score
the veneer surface at the de-
sired height of the cut, prior
to using the saw. An applica-
tion of wide masking tape in the cutting zone also helps
reduce splintering, and will protect the saw housing from
scratching the veneer.
DO NOT MOVE OR LIFT DOOR
WHILE CUTTING OR KICKBACK MAY RESULT!
DOOR CUTTING:
see Figure 15
Figure 15
•
IN USE, KEEP ONE HAND ON THE SWITCH HANDLE
AND ONE HAND ON THE RATCHET HANDLE. DON’T
REMOVE A HAND TO CLEAR DEBRIS.
