skilsaw SPT5007-EA User manual

IMPORTANT
Read Before Using
◆
IMPORTANT
Lire avant usage
◆
IMPORTANTE
Leer antes de usar
For English Version
See page 2
◆
Version française
Voir page 53
◆
Versión en español
Ver la página 117
Instruction Manual
Mode d'emploi
Manual de instrucciones
1-877-SKIL999 (1-877-754-5999) www.skilsaw.com
Call Toll Free for Consumer Information & Service Locations
Pour obtenir des informations et les adresses de nos centres de service après-vente, appelez ce numéro gratuit
Llame gratis para obtener información para el consumidor y ubicaciones de servicio
For English Version
See page 2
◆
Version française
Voir page 18
◆
Versión en español
Ver la página 34
EARLY ENTRY ATTACHMENT
ATTACHEMENT À PÉNÉTRATION PRÉCOCE
ADITAMENTO DE ENTRADA TEMPRANA
SPT5007-EA

-2-
Table of Contents
Page
Safety Symbols..........................2
Intended Use............................3
Unpacking and Checking Contents ..........3
Getting to Know Your Early Entry Attachment .4
Safety Symbols
The denitions below describe the level of severity for each signal word. Please read the manual and
pay attention to these symbols.
This is the safety alert symbol. It is used to alert you to potential personal
injury hazards. Obey all safety messages that follow this symbol to avoid
possible injury or death.
DANGER DANGER indicates a hazardous situation which, if not avoided, will result
in death or serious injury.
WARNING WARNING indicates a hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION CAUTION, used with the safety alert symbol, indicates a hazardous situ-
ation which, if not avoided, will result in minor or moderate injury.
Page
Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Operation .............................13
Maintenance ...........................16
WARNING Familiarize yourself with Oper-
ating/Safety instructions (man-
ual) for Skilsaw SPT79A. The manual for SPT79A
contains additional information that is not covered
in this manual. If the SPT79A manual is missing,
please download a copy from
www.skilsaw.com/service-manuals.
WARNING
Some dust created by power
sanding, sawing, grinding, drill-
ing and other construction activities contains
chemicals 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 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 specially designed to lter out microscopic
particles.

-3-
This attachment allows SKILSAW SPT79A Medusaw™ walk behind saw to function as an early
entry concrete saw and is designed for residential and light commercial projects. Early entry saw
controls random cracking of the concrete by making early contraction cuts, often within 1 – 2 hours
after the nishing process is complete. The combination of the spring-loaded skid plate and the early
entry diamond wheel specically designed for this application, allows early entry sawing while min-
imizing chipping and spalling of the cut edges.
Intended Use
WARNING
For your own safety, never
connect the saw to a power
outlet until all assembly steps are completed
and until you have read and understood the
entire instruction manual.
TOOLS REQUIRED: A screwdriver that accepts
standard 1/4" hexagonal bits is required to use
the T25 torx bit.
Separate all parts from the packing materials and
check each one against the “Loose Parts List" to
make sure that all items are accounted for before
discarding any packing material.
WARNING If any parts are missing, do
not attempt to assemble the
early entry attachment until the missing parts
are obtained and are installed correctly.
LOOSE PARTS LIST
Item Description Qty
AEarly entry attachment main
body 1
BFront locking bolt 1
C1-1/2 inch depth stop 1
DHex nut for depth stop 1
ETorsion spring assembly 1
FLine guide wheel 1
GLong bolt for line guide wheel 1
HEarly entry diamond wheel 1
IT25 torx bit 1
Unpacking and Checking Contents
ADE F
G
I
B
H
C
FIG. 1

-4-
Getting to Know Your Early Entry Attachment
1. Front knob
2. Front locking bolt
3. Fixed plate
4. Guide rod
5. Torsion spring assembly
6. Rear knob
7. Skid plate
8. Spring plate
FIG. 2
6
543
2
1
8 7

-5-
NOTE: Keep the original Operating/Safety in-
structions (manual) for Skilsaw SPT79A handy.
The manual for SPT79A contains additional in-
formation that is not covered in this manual. If the
SPT79A manual is missing, please download a
copy from www.skilsaw.com/service-manuals
WARNING
Disconnect the saw from the
power source before making
any assembly, adjustments or changing ac-
cessories. Such preventive safety measures
reduce the risk of starting the tool accidentally.
ATTACHING THE EARLY ENTRY
DIAMOND WHEEL
CAUTION
Use only SKILSAW early
entry diamond wheel with
this attachment. Using other wheels will lead to
unsatisfactory results and possible damage to
the tool or work area.
1. Tip the tool back with the guard facing up.
2. Press the lock button (on the back of the
saw) and turn the wheel bolt using the 1/2”
slot of the wrench (included with the saw and
stored in the foot of the saw) until the lock
button engages. The shaft is now locked.
Continue to depress button, turn wrench
clockwise and remove the wheel bolt and
OUTER WASHER (Fig. 3).
3. Make sure that the arrow on the diamond
wheel is pointing in the same direction as the
arrow on the guard.
4. Slide the diamond wheel into the guard and
mount it against the INNER WASHER on the
shaft. Be sure that the large diameter of the
INNER and OUTER washers lay flush
against the diamond wheel.
5. Reinstall the OUTER WASHER. First tighten
the wheel bolt nger tight, then tighten the
wheel bolt 1/8 turn (45˚) with the wrench pro-
vided. Do not use wrenches with longer han-
dles, since it may lead to over tightening of
the wheel bolt.
NOTE: Install a new skid plate every time a new
early entry diamond wheel is installed. SKILSAW
set SPT5008-EA includes 1 (one) replacement
wheel and 1 (one) replacement skid plate.
Direction of
rotation arrow
Diamond wheel
OUTER WASHER
Large diameterfaces
the wheel
Wheel bolt
Lock button
Wrench
INNER WASHER
Large diameterfaces
the wheel
Shaft
Guard
Assembly
FIG. 3

-6-
Assembly
ATTACHING THE LINE GUIDE WHEEL
1. Set the saw on its side on a at surface with
the blade guard facing up.
2. Loosen the locking bolt from the rear left
wheel by using T25 torx bit and an optional
screwdriver (Fig. 4a).
3. Remove the rear left wheel and its locking
bolt.
NOTE: Keep the original locking bolt in a safe
place in case the saw needs to be reverted back
to its original conguration.
4. Attach the line guide wheel, the rear left
wheel and the long bolt in the order shown
(Fig. 4b).
NOTE: The side of the rear left wheel with “SKIL-
SAW" logo should be facing out.
5. Start tightening the long bolt by hand, then
tighten 1/2 turn using T25 torx bit.
FIG. 4a
FIG. 4b
Long bolt Rear left wheel
Line guide
wheel
Long bolt
Original bolt

-7-
a
b
c
d
Middle control knob Lower control knob
FIG. 5a
FIG. 5b
ATTACHING THE TORSION SPRING
ASSEMBLY
1. Unfold the handle:
a. Press the middle control knob (Fig. 5a).
b. Unfold the upper part of the handle 180°
as shown in Fig. 5a until it audibly locks in
place.
c. Press the lower control knob (Fig. 5a)
d. Unfold the lower part of the handle as
shown in Fig. 5a until it audibly locks in place.
e. The saw should look as shown in Fig. 5b.
Assembly

-8-
Screw for calibrated
depth bracket
Wrench
Torsion spring
assembly
2. Set the saw on its side on a at surface with
the guard facing up.
3. Using T25 torx bit, remove the screw from
the calibrated depth bracket and keep it in a
safe place in case the saw needs to be re-
verted back to its original conguration (Fig.
6a).
4. Insert the torsion spring assembly as shown
in Fig. 6b.
a. The threaded end, with blue thread locker
painted on, should be inserted into the open-
ing in the calibrated depth bracket.
b. Keep proper orientation of the ends of the
torsion springs: the short end must be touch-
ing the foot of the saw.
5. Tighten the torsion spring assembly by using
the wrench provided with the saw (Fig. 6c).
Assembly
FIG. 6a
FIG. 6b
FIG. 6c
Short end
Long end
Blue thread locker
Long end

-9-
ATTACHING THE EARLY ENTRY
ATTACHMENT
1. Set the saw on its side on a at surface with
the blade guard facing up.
2. Attaching rear part.
Align the rear knob of the early entry attach-
ment with the stud of the torsion spring as-
sembly, then tighten the rear knob. The
below points need to be observed (Fig. 7):
• Ensure that the long end of the torsion spring
is inserted into the opening of the block.
• Ensure that the end of the stud is ush with
the stepped inner surface of rear knob.
Assembly
FIG. 7
End of the
stud
Stepped
inner surface
Ensure that the long end of the
torsion spring is inserted into the
opening of the block.
Block

-10-
Front
locking bolt
Wave washer
Sealing ring
ATTACHING THE FRONT PART
• Ensure that the wave washer and the sealing
ring are properly seated on the front locking
bolt (Fig. 8a).
• Thread the front locking bolt into the opening
of the front knob on the early entry attach-
ment (Fig. 8c).
• Align the front locking bolt with its mounting
opening in the saw and rst tighten the bolt
by hand, then further tighten 1/2 turn using
T25 torx bit (Fig.8b). Do not overtighten.
Assembly
FIG. 8a
FIG. 8b
FIG. 8c
Front
locking
bolt
Front knob
Mounting
opening

-11-
Wrench
Hex nut
Depth stop
Calibrated
depth bracket
Depth
adjustment lever
ATTACHING THE 1-1/2 INCH DEPTH
STOP
1. Set the saw on its side on a at surface with
the blade guard facing up.
2. Loosen the depth adjustment lever, then ad-
just the cutting depth so that the depth stop
can be inserted into the slot of the calibrated
depth bracket.
3. Insert the depth stop and ensure that the
depth stop rests ush against the bottom end
of the slot in the calibrated depth bracket
(Fig. 9a).
4. Attach the hex nut to the depth stop, and use
the wrench, provided with the saw, to tighten
it (Fig. 9b).
5. Lower the saw assembly as far as the depth
stop allows and tighten the depth adjustment
lever to lock the saw at this depth.
Assembly
FIG. 9a
FIG. 9b

-12-
Rear knob
The cut-off wheel
must be aligned with
the middle of the slot
Front knob
Adjustments
WARNING
Disconnect the saw from the
power source before making
any assembly, adjustments or changing ac-
cessories. Such preventive safety measures re-
duce the risk of starting the tool accidentally.
FINE-ADJUST THE DISTANCE BE-
TWEEN THE CUT-OFF WHEEL AND
THE SLOT IN THE SKID PLATE
1. Set the saw upside down on a at surface
with the diamond wheel at its maximum cut-
ting depth (depth adjustment lever rests ush
against the depth stop).
2. Make ne adjustment by turning the front and
rear knob to center the cut-off wheel in the
slot of the skid plate until that the gaps on
both sides are equal (Fig. 10).
IMPORTANT: Verify the wheel alignment within
the slot every time a new diamond wheel and/or
skid plate are installed or this attachment is re-
moved for cleaning. Repeat the steps above if
adjustment is required.
FIG. 10

-13-
Contraction Joint
Controlled Cracking
Random Cracking
Operation
WARNING
To reduce the risk of injury,
read the Operating/Safety in-
structions included with SKILSAW SPT79A.
They contain information not covered in this in-
struction manual.
SAWING CONTRACTION JOINTS
Internal stresses in concrete develop as the con-
crete begins to set. Left unattended, these internal
stresses develop random cracks. Contraction
joints, sawed at an early stage, prevent random
cracking and ensure that the crack is formed
where intended – right under the contraction joint
(Fig. 11).
IMPORTANT: Do not connect the saw to a water
feed. Early entry sawing does not require water to
make the cut.
Contraction joints should be cut as soon as the
concrete can support the weight of the saw and
the user without leaving marks or damaging the
surface. Check the concrete surface in 15-minute
intervals until the above conditions are met.
Some of the following factors affect spacing be-
tween contraction joints:
• Thickness of the concrete
• Kind, amount, and locations of reinforcement
• Type and quantity of concrete-cement
(Shrinkage potential), type of aggregate,
water to cement ratio, and concrete tempera-
ture
• Base friction
• Slab restraints
• Layout of foundations, racks, pits, equipment
pad, trenches, etc.
• Environmental factors such as temperature,
wind, and relative humidity
• Concrete curing methods.
FIG. 11

-14-
Operation
Generally, contraction joint grid should divide concrete slab(s) into square panels. Follow this recom-
mended spacing chart:
Concrete Thickness Spacing
3.5" (9 cm) 8 ft. (2.4 m)
4 – 4.5" (10 – 11.5 cm) 10 ft. (3 m)
5 – 5.5" (12.5 – 14 cm) 12 ft. (3.6 m)
6" (15 cm) or more 15 ft. (4.5 m)
CAUTION
This diamond wheel is designed to cut “green concrete" only. “Green con-
crete" is a stage of the concrete when it is not completely cured and hardened but
its surface is strong enough to support the weight of the tool and its user.
Type of aggregate Recommended cutting rate*
Soft aggregates 4.6 ft/min (1.4 m/min)
Medium aggregates 3.3 ft/min (1 m/min)
Hard aggregates 2 ft/min (0.6 m/min)
* Speed will vary with job conditions and concrete mixes.
Cutting depth – 1-1/2" (38 mm) with the depth stop installed.
With the depth of cut 1-1/2" (38mm) the cutting distance from the wall a= 5-1/2” (140mm), b= 8-1/2"
(216mm). The distance from the right edge of the saw to the cutting line c= 6-1/4" (159mm). See Fig. 12.
a
c
b
FIG. 12
Wall
Wall
Cutting line

-15-
Line guide
wheel
Cutting line
Operation
MAKING A CUT
For general use, follow the operating instructions
for SKILSAW SPT79A.
Always hold the tool by the main handle with one
hand and the side handle with the other. Tip the
tool back on the rear wheels. Align the tool with the
intended line of cut using line guides. Note that the
newly-installed line guide wheel can function as
an additional line guide. (Fig. 13).
Maintain a rm grip and operate the switch with a
decisive action. Never force the tool. Lower the
wheel into material to be cut. The cutting wheel will
cut the concrete at the optimal preset depth of
1-1/2" (38 mm).
To prevent joint damage at all intersecting cross
cuts, install joint protectors at each joint.
To prevent concrete damage, install an additional
joint protector in area(s) where the right wheel will
cross the joint.
CAUTION
Thoroughly clean this early
entry attachment immedi-
ately after use before the concrete deposit
dries. Concrete buildup may interfere with the
safe and efcient operation of the attachment.
Examine the inside of the guard behind the dia-
mond wheel. Wet concrete may accumulate
there and interfere with the safe and efcient op-
eration of the attachment.
FIG. 13

-16-
Guide rods
Front support opening
WARNING To avoid accidents always
disconnect the tool from the
power supply before cleaning or performing
any maintenance.
CLEANING THE EARLY ENTRY
ATTACHMENT
1. Detach the early entry attachment from the
saw. The torsion spring assembly can be
kept attached to the saw.
a. First, turn the front locking bolt counter-
clockwise by using T25 torx bit to detach the
front part of the early entry attachment from
the saw.
b. Loosen the rear knob to detach the rear
part of early entry attachment from the saw.
2. Use a brush and water to completely wash
the accumulated concrete on the early entry
attachment. Two key areas require special
attention (Fig. 14):
• The inside of the front support opening.
• Front and rear guide rods.
3. Re-install the attachment to the saw.
4. Verify the diamond wheel alignment within
the slot on the skid plate and adjust if neces-
sary. Refer to “Adjustements" section.
Maintenance
FIG. 14

-17-
Maintenance
SKID PLATE REPLACEMENT
The skid plate of the early entry attachment is a
consumable part, the poor cutting results that oc-
cur with the saw are a result of damaged skid
plate, such as:
• The slot in the skid plate shows severe and/
or uneven wear.
• Burrs on the bottom of skid plate.
• The skid plate is bent or dented.
In these cases, replace the damaged skid plate
with a new one.
1. Use the T25 torx bit to remove the front and
rear rods, then remove the damaged skid
plate.
2. Replace it with a new skid plate, then use the
original rods to secure it. Start tightening by
hand, then further tighten by 1/2 turn using
the T25 torx bit.
NOTE: The tip/nose of the skid plate should face
toward the front of the saw. Do not install it in
reverse direction.
3. Ensure the smooth operation by pushing the
skid plate towards the xed plate with two
hands and releasing it.
4. Verify the diamond wheel alignment within
the slot on the skid plate and adjust if neces-
sary. Refer to “Adjustements" section.
NOTE: Always replace the skid plate with each
new diamond wheel.
Skid plate Guide rods
Tip/nose
Fixed plate
FIG. 15

-18-
Table des matières
Page
Symboles relatifs à la sécurité .............18
Utilisation prévue .......................19
Déballage et inspection du contenu.........19
Familiarisez-vous avec votre attachement à
pénétration précoce. ....................20
Symboles relatifs à la sécurité
Les dénitions ci-dessous décrivent le niveau de gravité pour chaque terme signalant un danger.
Veuillez lire le mode d’emploi en faisant attention à la signication de ces symboles.
C’est le symbole d’alerte relatif à la sécurité. Il est utilisé pour
vous avertir de l’existence possible d’un danger de lésion corpo-
relle. Obéissez à tous les messages relatifs à la sécurité qui
suivent ce symbole pour éviter tout risque de blessure ou même
de mort.
DANGER DANGER indique une situation dangereuse qui, si elle n’est pas
évitée, causera la mort d’une personne ou une blessure grave.
AVERTISSEMENT
AVERTISSEMENT indique une situation dangereuse qui, si elle
n’est pas évitée, pourrait causer la mort d’une personne ou une
blessure grave.
MISE EN GARDE, conjointement avec le symbole d’alerte en li-
aison avec la sécurité, indique une situation dangereuse qui, si
elle n'est pas évitée, causera une blessure légère ou modérée.
Page
Assemblage ........................20-21
Fonctionnement ........................29
Maintenance ...........................32
AVERTISSEMENT
Familiarisez-vous
avec les instruc-
tions d’utilisation/consignes de sécurité (mode
d’emploi) pour le produit Skilsaw SPT79A. Le
mode d’emploi du produit SPT79A contient des
informations supplémentaires qui ne sont pas in-
cluses dans ce mode d’emploi. Si vous ne trou-
vez pas le mode d’emploi du produit SPT79A,
veuillez en télécharger une copie en allant sur le
site www.skilsaw.com/service-manuals.
AVERTISSEMENT
Des travaux de
ponçage, de
sciage, de meulage et de perçage réalisés avec
un outil électrique et d'autres travaux de con-
struction peuvent produire des poussières conte-
nant des produits chimiques qui sont des causes
reconnues de cancer, de malformation congéni-
tale ou d’autres problèmes reproductifs. Ces pro-
duits chimiques sont, par exemple :
–Le plomb provenant de peinture au plomb,
–Des cristaux de silices provenant des briques
et du ciment, ainsi que d’autres produits de
maçonnerie, et
–L’arsenic et le chrome provenant des bois
traités chimiquement.
Le niveau de risque causé par de telles exposi-
tions varie en fonction de la fréquence de ces
types de travaux. Pour réduire votre exposition à
ces produits chimiques : Travaillez dans un lieu
bien ventilé et portez un équipement de sécurité
approprié tel que certains masques conçus spé-
cialement pour filtrer les particules mi-
croscopiques.

-19-
Cet attachement permet à la scie sur chariot poussée SKILSAW SPT79A Medusaw™ de fonctionner
comme une scie à pénétration précoce pour le béton, et il est conçu pour les projets résidentiels et les
projets commerciaux peu intensifs. Une scie à pénétration précoce contrôle la ssuration aléatoire du
béton en effectuant des coupes de retrait précoces, souvent entre une heure et deux heures après
l’achèvement du processus de nition. La combinaison de la plaque mobile à ressort et de la lame
diamantée à pénétration précoce conçue spécialement pour cette application permet un sciage à
pénétration précoce tout en minimisant les risques d’éclatement et d’écaillage des bords coupés.
Utilisation prévue
AVERTISSEMENT
Pour votre pro-
pre sécurité, ne
connectez jamais la scie à une prise de cou-
rant avant d'avoir accompli toutes les étapes
de l'assemblage et avant d'avoir lu et com-
pris toutes les instructions du mode d'em-
ploi.
OUTILS NÉCESSAIRES : Un tournevis compat-
ible avec des embouts hexagonaux de 1/4 po est
nécessaire pour utiliser l’embout T25 Torx.
Séparez toutes les pièces des matériaux d'em-
ballage et inspectez chacune d'entre elles en
faisant référence à la « Liste des pièces
détachées » an de vous assurer que tous les
composants sont présents avant de jeter de quel-
conques matériaux d'emballage.
AVERTISSEMENT
Si de quelcon-
ques pièces
sont manquantes, ne tentez pas d'assembler
l’attachement à pénétration précoce avant
que toutes les pièces manquantes aient été
reçues et installées correctement.
LISTE DES PIÈCES DÉTACHÉES
Article Description Qté
ACorps principal de l’attache-
ment à pénétration précoce 1
BBoulon de verrouillage avant 1
CButée de profondeur de 3,75
cm / 1-1/2 po 1
DÉcrou hexagonal pour la butée
de profondeur 1
EEnsemble de ressort de torsion 1
FRoue de guidage du l 1
GBoulon long pour la roue de
guidage du l 1
HLame diamantée à pénétration
précoce 1
IEmbout T25 Torx 1
Déballage et inspection du contenu
ADE F
G
I
B
H
C
FIG. 1

-20-
Familiarisez-vous avec votre attachement à pénétration précoce
1. Bouton avant
2. Boulon de verrouillage avant
3. Plaque xe
4. Tige de guidage
5. Ensemble de ressort de torsion
6. Bouton arrière
7. Plaque mobile
8. Plaque à ressort
FIG. 2
6
543
2
1
8 7
REMARQUE : Conservez à portée de la main les
instructions d’utilisation / consignes de sécurité
originales (mode d’emploi) pour le produit Skil-
saw SPT79A. Le mode d’emploi du produit
SPT79A contient des informations supplémen-
taires qui ne sont pas incluses dans ce mode
d’emploi. Si vous ne trouvez pas le mode d’em-
ploi du produit SPT79A, veuillez en télécharger
une copie en allant sur le site
www.skilsaw.com/service-manuals.
AVERTISSEMENT
Débranchez tou-
jours la scie de
la prise de courant avant de procéder à un as-
semblage, à des réglages ou à des change-
ments d’accessoires. De telles mesures de
sécurité préventives réduisent le risque de
démarrage accidentel de l’outil
ATTACHEMENT DE LA LAME DIA-
MANTÉE À PÉNÉTRATION PRÉCOCE
Utilisez seulement
la lame diamantée
SKILSAW à pénétration précoce avec cet at-
tachement. L’utilisation d’autres lames produira
des résultats non satisfaisants et pourrait en-
dommager l’outil ou la zone de travail.
1. Inclinez l’outil en arrière de telle sorte que le
dispositif de protection soit orienté vers le
haut.
2. Appuyez sur le bouton de verrouillage (à l’ar-
rière de la scie) et tournez le boulon de xa-
tion de la meule en utilisant la fente de 1/2 po
de la clé (incluse avec la scie et rangée dans
le pied de la scie) jusqu’à ce que le bouton
de verrouillage s’enclenche. L’arbre est
désormais verrouillé. Tout en continuant à
appuyer sur le bouton, tournez la clé dans le
sens des aiguilles d’une montre et retirez le
boulon de xation de la meule et la RON-
DELLE EXTÉRIEURE (Fig. 3).
Assemblage