CRAIN 812 User manual

INSTRUCTION
MANUAL
FOR
MASONRY HANGINGDOORS
OGRAilN$
No.8121812V
SUPER
SAW
MAY
- 2005

OPERATINGINSTRUCTIONS
The
CrainSuper
Saw
is
desiqned
for
undercuttino
wooden
door
jambs,
rholdings,
base,inasonry,tile,
orston6,to
allow
newfloor
coveringsto befitunderneath.Donotuse
this
sawforsandingfloors,
cuttingmetal,or
anyother
purpose
notdescribedinthis
instructionmanual.
SAFETYFIRST!Forsafeoperation,
please
take time to
carefullyread
alltheinstructionsand rulesinthis
booklet.
SAFEW GLASSES: Alwayswear
safety
glasses
when
us-
ingapower tool.Usefaceordustmaskif
cuttingoperation
isdusty.
EARPROTECTION:
Wear
ear
plugs
when
usingthis
saw.
BLADE
GUARD:Theblade
guard
attachedtoyour
sawis
foryour
safetyandprotection.lf itbecomes
damaged,do
not
operate
your
sawuntilithasbeenrepaired.
Alwaysleave
blade
guard
intheoperating
position
when
usingthesaw.
DOUBLE-INSULATED:Thistoolis
constructedwithtwo
separate
layers
ofelectrical
insulation.
Atool
built
withthis
insulation
system
doesnotneedto be
grounded.
DANGEROUSENVIRONMENTS:Keepwork
areaclean;
clutter
invites
accidents.
Donotuse thesawondampor
wetfloors.Besurethatthereis
good
lighting.
ACCIDENTAL
STARTING:
To
avoidaccidentalstarting,
do
not
carry
the
saw
with
fingerson
the
switch.
CORD
ABUSE: Never
carry
toolsbythecordoryank
the
cordtodisconnectfromanoutlet.Keepthecord
awayfrom
heat,oil,andsharp
edges.
EXTENSION
GORD:
Tominimize
power
loss
andprevent
over-heating,usemaximum
of25feetlong and
16AWG.
KEEPBLADES
CLEAN
ANDSHARP: Usingadullblade
will
place
a
heavyload
on
your
sawand
increase
thedanger
ofkickback.Forreplacement, useonlyCrain
#821
Carbide-
Tipped,
#805Masonryor#822DiamondBlades.
WORKINGTERMINOLOGY
Pleasereferto thediagrambelowfortheterms
used
in
thisinstructionmanual. TRIGGER
HANDLE
Figure1
CAUTION!
BLADE
EXPOSED
WHILE
CUTTING!
KEEPHANDS
AWAY! HEIGHT

BLADE
REMOVAL:
I
I Turn
ofiandunplug
saw.
r Retract
the height
ad-
juster
soitis
flush
with
thebasetoallow
clear-
anceforwrench.
r Push
intheblade
stop
withonehand
and in-
sertthehex
wrench
into
the hexhead
socket
screwwith your other
hand;then
turn
untilthe
spindleengages
withthe
lock
button
(blade
stops
rotating).
r Hold
ontotheplastic
hous-
ing,then
push
hard
on
the Figure
2
hexwrench
counter-clockwise
to
open.lfthe
bladeisvery
hard
toremove,
use
avise-griptoholdtheblade.
BLADE
INSTALLATION:
seeFisure
3
r Place
the
bladespacer
over
thearbor.
r Place
the saw blade
on top of the blade
spacer.
r Place
the
blade
clamp
through
the
arborhole
with the bottom slot
of the bladeclamp
properly
alignedwith
the
spindle.
I Insert
andre-tighten
the
sockethead
screw.
Push
in the soindle
lockto tighten. Be
sureto tighten
firmly
before
use.
HEIGHT
ADJUSTMENT Figure
3
seeFigure
4
r Unplugthe
saw.
r Loosen
the wing nuts
on height
adjuster
11lz
to 2turns
(do
notback
offthewingnutsmore
thannecessary).
r Adjustthe height
of
yourblade
by moving
the height
adjusterup
ordownuntil
desiredheight
ofcutis
achieved.
Theinside
oftheheight
adjuster
has10reference
lines,
inincrements
of3/sz"
(.093"),
whichis
thethickness
oftheblade.
seeFigure
2
24-_aex
BLADE Z P WRENCH
CLAMp - ;=-BLADE /HlVlT /-A
,t=,-, ,./--e SCREW
l/,61 --.- ss-s's'$.\A-
\l \\U.t/ s- . "lA
\lz A ,^\ %
MUST
ENGAGE
ARBOR
#821
ADJUSTMENTWING
NUT
Figure
4

I Use these lines
as
a guide
for adjust-
ment. The housing
must be set parallel
to the floor.
This is
criticalfor safety
and
straight
undercutting.
The maximum
height
adjustmentis
1".
I Securelytighten
the
wingnuts before
use.
STABILIZER:
r The
retractable
stabilizermay
be extended
to prevent
the
saw
from
tipping.
Extend
the
stabilizerwhenundercutting
alongwalls.
r The
stabilizer
must
bere-
tracted
when
cuttinginside
corners.
DEPTH
ADJUSTMENT
r The depth adjuster
accu-
rately
controls
depth of cut
forstraight-on (figure
7)
ora
45'angle
(figure
8).
r Cutting on a 45o
angle
captures
as much dust as
possible
inside
thehousing.
When
usingthis
sawwitha
vacuum,
thisisthe mostef-
fectiveway to controldust
(see
figure
8).
r To adjustthe depth gauge,
loosen
the three-arm
knob
and movethe depth gauge
inandoutasrequired.
r Re-tighten the three-arm
knob
firmly
before
use.
r Werecommend
that
youset
thedepthof cut to no more
lhan 1/2"
to minimize
the
chance
of hitting wall
studs,
nails,
etc.
I Remove
the depth gauge
and retract
the stabilizer
whencuttinginside
corners
(see
figure
9).
Figure
5
Figure
6
Figure
7
Figure
8
Figure
9

USINGTHE
SAW:
r Make
surethe
sockethead
screwholding
the
blade
and
height
adjusterwingnuts
aretightened
securely.
a Plug-in
thesawand
grasp
thehandlesfirmly.Depress
thesafetylock
button,then
pull
thepower
switch.
r To
start
acut,usethewalltopush
the
blade
guard
back
andexpose
blade.
DONOT
USE
YOUR
HAND!
r Plungeto appropriate
depth. Alwaysmovethe saw
fromleft
to right
only.
r Donot
forcethesaw;lettheblade
cutathighestRPM
possible.
r The sawstopsautomatically
whentheswitchisreleased.
INSIDE
CORNER
CUTTING:
r Cuttowardsthe
corner
ata
45"
angleuntilthe
sawmeets
therightwall
(see
figure10).
r Stop
andunplug
saw. Remove depth
gauge
andretract
the
stabilizer.Then
continuethe
cut
(see
figure
11),
r Whenthe sawhousingmeets
bothwalls,
push
sawinto
thecornerasshown
(see
figure12).
WARNING:Depth
gauge
covers
theblade
and
makes
the
sawsaferto
use.
Always
unplugthe
sawandre-install
depth
gauge
when
you
aredonewithinside
cornercutting.
DOOR CUTTING: see
Figure
13
a Openthedoor. Workfrom
the outside
of the door in-
ward,toward
the hinges.
To avoidsplinteringveneer
doors,it may be advisable
to score the veneer
surface
at the desiredheight
of the
cut, prior to usingthe saw.
An
application
of
wide
mask-
ingtape in the cuttingzone
alsohelpsreduce
splintering, Figure
13
fromscratchingthe
and will protect
the saw housing
veneer.
r Withthe
depth
gauge
removed,
themaximum
thickness
of cut is2",whichisadequatefor most
doors. Check
foradequate
depth
ofcutbeforestarting.Thicker
doors
mayrequire
cutsfrom
bothsidesofthe
door.Take
care
Figure11
Figure
10 Figure
12

DOOR
CUTTING,
continued:
not to leave
a thin remnant of door on the opposite
side,which
caneasilybreak
offandcracktheveneer.
Also,
checkthatthefloorisatthesame
elevationon
bothsidesofthedoor,oradditionalheight
adjustment
may
berequired.
r The maximumheight
of cut is one inch. To cut off
higherthanone inch,
place
a flatsheetof plywood
underneaththesaw.
POCKETDOOR
GUTTING:
r Take
precautions
neces-
sary
for
veneer
doorsand
chelck
door
thickness
as
describedabove(under
"Door
Cutting").Pocket
door
cutting
requires
two
people. Onemusthold
the saw down and in a
fixed
postition,
whilethe
other
person
slowly
pulls
the
door
intothe
blade.
r Afterthe
pocket
doorhas
been
fully
drawnout,re-
move
anyunfinished
area
atthebottomofthepocket
door
with
ahand saw,fol-
lowing
along
inthepre-established
cut.
MASONRY
STONE,OR
TILE
UNDERCUTTTNG:
r The No. 805 Masonry
Bladeis primarily
used
for cuttinobrick. lt is
not for u6eon tile or
stone. Use
theNo.822
Diamond
Bladefor cut-
tingtile
orstone.
I Masonrystone,
andtile
undercuttinocreates
a
lot of dust. -We
strongly
recommendtheoperator
wear a dust mask and
place
a lightclothover
theairintake
onthemo-
tor. Thiswill
prolong
the
lifeofthesaw.'
r DONOT
usethissawforcuttingsteeloraluminum.
Sparks
cancause
fireinthewall
behind
the
doorcasing.
MAINTENANGE:
lf
saw
is
dropped,theblade
guard
maybebent,restrictinq
itsfullreturri.'sawdust
thataccumulates
behind
the
blad6
guard
willcauseitto becomeclogged.Checkoperation
of
the
blade
guard
beforeeachuse. Donotusesawifthe
blade
guard
doesnotoperate
properly.
Whennotin
use,
storesawinthecustomcarryingcase.
* ,F..
-l'.t
Figure
14
Figure
15

aD)
U U
g__-_R
REPLACEMENTPARTS
AND
ORDERING
INFORMATION
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€
@-- =--->----.'..
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Order No. DescripUon
1812-A Power Unit,
120volts
1812-AV PowerUnit,220
volts
1812-B Housing
1812-C HeightAdjuster
1812-D Depth Gauge
1812-E Three
ArmKnob
Set
(2)
1812-F VacuumFlangeandFastener
(3)
1812-G FlangeCap
1812-H Guide
WasherSet
(8)
1812-l StabilizerRetainerand
Fastener
(2)
1812-J BushingSet
(2)
1812-K Stabilizerand
Fastener
(4)
1812-L BladeGuard
1812-M Blade
Guard
SpringandFastener
(3)
1812-N Blade GuardSnap
Ring
1B12-0 BladeSpacer
1812-P BladeClamp
1812-0 Blade
Screw
1812-R HexWrench
1812-S Carrying Case
(not
shown)
1812-I CarryingCase
LatchSet
(2)(not
shown)
1812-U Switch
1812-V PowerCord
1812-W BrushesSet
(2)

WARNING:
Somedustcreatedbypowgrsanding,sawing.,
grinding,
drillino.
andotherconstruction
activities
containschemi-
calsk-nown
to the State of Californina
to causecancer,
birthdefects
orother
reproductive
harm.
Some
examples
ofthesechemicalsare:
o leadfromlead-based
paints,
o crlstallinesilica
frombrick,cementand
other
masonry
product,
and
o arsenic
andchromium
fromchemically-treated
lumber.
Your
riskfromthese exposures
varies,dependingon how
oftenvoudothistvpeofwork. To
reduce
vour
exposure
to
these'chemicals:
r,rTork
in
awell-ventilated
arba,and
workwith
approved
safetvequipment,
such
as
those
dustmasksthat
aieispecially
designed
tofilteroutmicroscopic
particles.
SPECIFIGATIONS:
POWER
UNIT
Voltage:
Construction:
PlugType:
Amoeres:
Wattage:
Horseoower:
NoLoadSoeed:
MaxDeothofCut:
Mu.
Heightof
Cut:
Gross
Weight:
ReolacementBlades:
ModelN0.812 Model
No,812V
12OVAC,60
HZ. z2OVAC,SO|IZ
Doublelnsulated DoubleInsulated
3-Prong
Plug UKPlug
13Amps 6.5Amps
1500Watts 1560Watts
2.t22H? 2.122HP
4,800
RPM 4,800RPM
131t" 13li
1' 1',
14LBS. 14LBS.
#805MasonryBlade
(samefor812V)
#821Carbide-TrppedBlade $ame
lor
812V)
#822
DiamondBlade (ume1or812V)
co.,
rNc.
(408)
e46-6100
GUARANTEE
This
Crain
No.812/812V
SuperSaw
is
guaranteed
to befreeofdefects
in
workmanshipand
quality
of
materials
for a period of oneyear.
Any
parts
of
thissaw
founddefectivesubject
tothe
guarantee
willbe replacedat nocharge.Credit
in
fullor part cannot
beextended
bythedistributor,
norwilla newsaw be given
as a replacementor
loaner.
Saws
subject
tothiswarranty
mustbeaccompanied
bysame,
returnedfreight
PREPAID
toMilpitas,
CA,
and
mustbe
in
assembled
condition.
DATEOF
MFG.
CRAIN CUTTER
Milpitas,
CA
95035
TEL:
V\/WW cralntools com
Printedby: HW FORMF1812-2/2004