MasterCraft 054-1237-4 User manual

Owner’s Manual
Multi-Cutter Precision Saw
054-1237-4
CAUTION:
Before using this multi-cutter
precision saw or any of its
accessories, carefully read
this manual and follow all
Safety Rules and Operating
Instructions.
General Safety Rules
Specific Safety Rules
and Symbols
Functional Description
Assembly
Operation
Maintenance
Accessories
Imported by Mastercraft Canada Toronto, Canada M4S 2B8
Rev 1.7 03/12/2010

2
SECTION
PAGE
SECTION
PAGE
Warranty ….……………………….
2
Know your multi-cutter …...…..
10
Product specifications …………...
3
Tote contents ………..………...
11–12
Power tool safety …………………
3–5
Assembly & operation ..………
13–18
Specific safety rules ……………..
6–8
Maintenance …….……………..
19
Extension cords ………………….
8–9
Parts & service ..……..………..
20–22
Symbols …………………………..
9
WARRANTY
TABLE OF CONTENTS
TABLE OF CONTENTS
Limited 3-year Replacement Warranty
This Mastercraft product carries a three (3) year replacement warranty against
defects in workmanship and materials. Mastercraft Canada agrees to replace the
defective product free of charge with the same model or one of equal value or
specification, within the stated warranty period, when returned by the original
purchaser with proof of purchase. This product is not guaranteed against wear or
breakage due to misuse and/or abuse.
This product is not guaranteed if used for industrial or commercial purposes.
Mastercraft is a superior line of products selected for their workmanship and
materials. These products are designed to meet rigorous quality and performance
standards, and are approved by our Quality Assurance laboratory.
TOLL FREE HELPLINE: 1-800-689-9928

3
WARNING: To avoid electrical hazards, fire hazards, or damage to the multi-
cutter precision saw, use proper circuit protection.
This multi-cutter precision saw is wired at the factory for 120 V operation. It must
be connected to a 120 V 15 A time delayed fuse or circuit breaker. To avoid shock or
fire, replace the power cord immediately if it is worn, cut or damaged in any way.
!
PRODUCT SPECIFICATIONS
Rating ………………………………..
120 V, 60 Hz, AC
Amperes …………………………….
4.0 Amperes
Speed ……………………………….
4000 RPM (no load)
Blade diameter ……………………..
85 mm (3 3/8”)
Arbor …………………………………
10 mm
Depth of cut …………………………
0–26.9 mm (0–11/16”)
Edge guide ………………………….
170 mm (6 ¾”)
WARNING: Dust created by power sanding, sawing, grinding, drilling and
other construction activities may contain chemicals that are known to cause
cancer, birth defects or other genetic abnormalities. These chemicals include:
Lead from lead-based paints
Crystalline silica from bricks, cement and other masonry products
Arsenic and chromium from chemically-treated lumber
Your level of risk from exposure to these chemicals will vary, according to how
often you do this type of work. To reduce your exposure to these chemicals, work
in a well-ventilated area and use approved safety equipment such as dust masks
that are specially designed to filter out microscopic particles.
!
POWER TOOL SAFETY
!
Always wear eye protection.
Any power tool can throw foreign objects into your eyes, which could cause
permanent eye damage. ALWAYS wear safety goggles (not glasses) that
comply with ANSI safety standard Z87.1. Everyday glasses only have
impact resistant lenses. They ARE NOT safety glasses.
WARNING: Glasses or goggles that do not comply with ANSI Z87.1 could
cause serious injury if they break.
SAVE THESE INSTRUCTIONS FOR REFERENCE
DANGER: The laser light beam that is projected from the front of the laser
level can be dangerous to eyesight. Never allow anyone to stare directly into the
light. Staring directly into the light beam may result in serious eye damage.
!

4
GENERAL SAFETY RULES
WARNING: Read and understand
all instructions. Failure to follow all of the
instructions listed below may result in
electric shock, fire and/or serious personal
injury.
WORK AREA
Keep your work area clean and well-lit.
Cluttered benches and dark areas invite
accidents.
Do not operate power tools in a
potentially explosive environment, such
as in the presence of flammable liquids,
gases or dust. Power tools create sparks,
which may ignite the dust or fumes.
Keep bystanders, children and visitors
away while operating a power tool.
Distractions can cause you to lose control.
ELECTRICAL SAFETY
Double insulated tools are equipped
with a polarized plug (one blade is wider
than the other). This plug will fit into a
polarized outlet only one way. If the plug
does not fit into the outlet, reverse the
plug. If it still does not fit, contact a
qualified electrician to install a polarized
outlet. Do not alter the plug in any way.
Double insulation eliminates the need for
the three-prong grounded power cord and
grounded power supply system.
Avoid contact between your body and
grounded surfaces such as pipes,
radiators, ranges and refrigerators. There
is an increased risk of electric shock if
your body is grounded.
Do not expose power tools to rain or
wet conditions. Water entering the power
tool will increase the risk of electric shock.
Do not abuse the cord. Never use the
cord to carry the tool or to pull the plug out
of an outlet. Keep the cord away from heat,
oil, sharp edges, and moving parts.
Replace damaged cords immediately.
Damaged cords increase the risk of electric
shock.
When operating a power tool outdoors,
use an outdoor extension cord marked
“W-A” or “W”. These cords are rated for
outdoor use and reduce the risk of electric
shock.
PERSONAL SAFETY
Stay alert, watch what you are doing
and use common sense when operating
a power tool. Do not use the tool when
tired or under the influence of drugs,
alcohol, or medication. A moment of
inattention while operating a power tool
could result in serious personal injury.
Dress properly. Do not wear loose
clothing or jewellery.
Contain long hair. Keep your hair,
clothing and gloves away from moving
parts. Loose clothing, jewellery or long hair
can be caught in moving parts.
Avoid accidental starting. Verify that the
switch is in the OFF position before
plugging the tool in. Carrying tools with
your finger on the switch or plugging in
tools that have the switch in the ON
position invites accidents.
SAVE THESE INSTRUCTIONS FOR REFERENCE
!
POWER TOOL SAFETY

5
POWER TOOL SAFETY
PERSONAL SAFETY –cont’d
Remove adjusting keys or wrenches
before turning the tool ON. A wrench or
key that is left attached to a rotating part of
the tool could result in personal injury.
Do not overreach. Keep proper footing
and balance at all times. Proper footing
and balance allows for better control of the
tool in unexpected situations.
Use safety equipment. Always wear eye
protection. A dust mask, non-skid safety
shoes, a hardhat or hearing protection
must be used for appropriate conditions.
TOOL USE AND CARE
Use clamps or another practical means
to secure and support the workpiece to
a stable platform. Holding the work in your
hand or against your body is not stable and
may lead to loss of control.
Do not force the tool. Use the correct
tool for your application. The correct tool
will do the job better and safer at the speed
that it was designed to work at.
Do not use the tool if it cannot be turned
ON or OFF by the power switch. Any tool
that cannot be controlled using the switch
is dangerous and must be repaired.
Disconnect the plug from the power
source before making any adjustments,
changing accessories or storing the
tool. Such preventive safety measures
reduce the risk of starting the tool
accidentally.
When not in use, store tools out of
reach of children and other untrained
persons. Tools are dangerous in the
hands of untrained users.
Maintain tools with care. Keep cutting
tools sharp and clean. Properly
maintained cutting tools with sharp cutting
edges are less likely to bind and are easier
to control.
Check for misalignment or binding of
moving parts, broken parts and any
other condition that may affect the
operation of the tool. If it is damaged,
have the tool serviced before using.
Many accidents are caused by poorly
maintained tools.
Use only accessories that are
recommended for your model by the
manufacturer. Accessories that may be
suitable for one tool may become
hazardous when used on another tool.
SERVICE
Tools must be serviced by qualified
personnel only. Service or maintenance
performed by unqualified personnel could
result in a risk of injury.
When servicing a tool, use only identical
replacement parts. Follow instructions
in the Maintenance section of this
manual. Use of unauthorized parts or
failure to follow Maintenance instructions
may result in a risk of electric shock or
injury.
SAVE THESE INSTRUCTIONS FOR REFERENCE

6
WARNING: Know your multi-
cutter. Do not plug the tool into the
power source until you have read and
understand this Instruction Manual.
Learn the tool’s applications and
limitations, as well as the specific
potential hazards related to this tool.
Following this rule will reduce the risk of
electric shock, fire, or serious injury.
Always wear eye protection.
Any power tool can throw
foreign objects into your eyes
and cause permanent eye
damage. ALWAYS wear safety goggles
(not glasses) that comply with ANSI safety
standard Z87.1. Everyday glasses have
only impact resistant lenses. They ARE
NOT safety glasses.
WARNING: Glasses or goggles
not in compliance with ANSI Z87.1 could
cause serious injury when they break.
Always keep hands out of the path of the
saw blade. Avoid awkward hand positions
where a sudden slip could cause your hand
to move into the path of the saw blade.
DANGER: Keep hands away from
cutting area and the blade. Keep your
second hand on the tool. If both hands
are holding the saw, they cannot be cut by
the blade.
Do not reach underneath the workpiece.
The guard cannot protect you from the
blade below the workpiece.
Adjust the cutting depth according to
the thickness of the workpiece. Less
than a full tooth of the blade teeth should
be visible below the workpiece or
approximately 3/8" (10 mm).
Never hold piece being cut in your
hands or across your leg. Secure the
workpiece to a stable platform. It is
important to support the work properly to
minimize body exposure, blade binding, or
loss of control.
Hold power tool by insulated gripping
surfaces when performing an operation
where the cutting tool may contact
hidden wiring or its own cord. Contact
with a “live” wire will also make exposed
metal parts of the power tool “live” and
shock the operator.
When ripping always use a straight
edge guide. This improves the accuracy of
cut and reduces the chance of the blade
binding.
Always use blades with correct size and
shape (diamond versus round) of arbour
holes. Blades that do not match the
mounting hardware of the saw will run
eccentrically, causing loss of control.
Never use damaged or incorrect blade
washers or bolt. The blade washers and
bolt were specially designed for your saw,
for optimum performance and safety of
operation.
CAUSES AND OPERATOR
PREVENTION OF KICKBACK
Kickback is a sudden reaction to a pinched,
bound or misaligned saw blade, causing an
uncontrolled saw to lift up and out of the
workpiece toward the operator;
When the blade is pinched or bound tightly
by the kerf closing down, the blade stalls
and the motor reaction drives the unit
rapidly back toward the operator;
!
!
!
SPECIFIC SAFETY RULES

7
CAUSES AND OPERATOR
PREVENTION OF KICKBACK –cont’d
If the blade becomes twisted or misaligned
in the cut, the teeth at the back edge of the
blade can dig into the top surface of the
wood causing the blade to climb out of the
kerf and jump back toward the operator.
Kickback is the result of saw misuse and/or
incorrect operating procedures or
conditions and can be avoided by taking
proper precautions as given below:
Maintain a firm grip with both hands on
the saw and position your arms to resist
kickback forces. Position your body to
the left or right side of the blade, but not
in line with the blade. Kickback could
cause the saw to jump backwards, but
kickback forces can be controlled by the
operator, if proper precautions are taken.
When the blade is binding, or when
interrupting a cut for any reason,
release the trigger and hold the saw
motionless in the material until the
blade comes to a complete stop.
Never attempt to remove the saw from
the work or pull the saw backward while
the blade is in motion or kickback may
occur. Investigate and take corrective
actions to eliminate the cause of blade
binding.
When restarting a saw in the workpiece,
centre the saw blade in the kerf and
check that saw teeth are not engaged
into the material. If the saw blades are
binding, it may walk up or kickback from
the workpiece as the saw is restarted.
Support large panels to minimize the
risk of blade pinching and kickback.
Large panels tend to sag under their own
weight. Supports must be placed under the
panel on both sides, near the line of cut
and near the edge of the panel.
Do not use dull or damaged blades.
Unsharpened or improperly set blades
produce narrow kerf causing excessive
friction, blade binding and kickback.
ADDITIONAL SPECIFIC SAFETY RULES
Use extra caution when making a
“plunge cut” into existing walls or other
blind areas. The protruding blade may cut
objects that can cause kickback.
Check the lower guard for proper
closing before each use. Do not operate
the saw if the lower guard does not
move freely and close instantly. Never
clamp or tie the lower guard into the
open position. If the saw is accidentally
dropped, the lower guard may be
damaged. Raise the lower guard with the
retracting handle and make sure it moves
freely and does not touch the blade or any
other part in all depths of cuts.
Check the operation of the lower guard
spring. If the guard and the spring are
not operating properly, they must be
serviced before use. The lower guard
may operate sluggishly due to damaged
parts, gummy deposits, or a build-up of
debris.
SPECIFIC SAFETY RULES

8
EXTENSION CORDS
ADDITIONAL SPECIFIC SAFETY RULES
–cont’d
The lower guard should be retracted
manually only for special cuts such as
“plunge cuts” and “compound cuts”
Raise lower guard by retracting handle
and as soon as the blade enters the
material, the lower guard must be
released. For all other sawing, the lower
guard should operate automatically.
Always observe that the lower guard is
covering the blade before placing saw
down on the bench or on the floor. An
unprotected, coasting blade will cause the
saw to walk backwards, cutting whatever is
in its path. Be aware of the time it takes for
the blade to stop after the switch is
released.
Never operate the saw while it is being
carried to another location. The blade
guard may be open and potentially cause
serious injury.
If the switch fails to turn the saw ON or
OFF properly, stop using it immediately
and have the saw switch repaired.
Always allow the saw to reach full speed
before beginning the cut.
Never use the side of the blade for cutting.
When making horizontal cuts, make sure
the weight of the tool is not forcing the side
of the blade to do the cutting. This will
reduce the risk of kickback.
Make sure there are no nails or foreign
objects in the area of the workpiece to be
cut.
DANGER: The laser light beam
that is projected from the front of the
laser level can be dangerous to
eyesight. Never allow anyone to stare
directly into the light. Staring directly
into the light beam may result in serious
eye damage.
DANGER: Never use the laser level
in the presence of small children. Small
children may stare directly into the laser
light beam causing serious eye injury.
WARNING: Keep the extension
cord clear of the working area. Position
the cord so that it will not get caught on the
workpiece, tools or any other obstructions
while you are working with the power tool.
Make sure any extension cord that is
used with this tool is in good condition.
When using an extension cord, be sure to
use one that is heavy enough to carry the
current that the tool will draw. An
undersized cord will cause a drop in line
voltage which will result in loss of power
and overheating.
The table on the following page shows the
correct size to be used according to cord
length and nameplate ampere rating. When
in doubt, use the next heavier gauge. The
smaller the gauge number the heavier the
cord.
SPECIFIC SAFETY RULES
!
!
!

9
EXTENSION CORD
SAFETY
SYMBOLS
Be sure your extension cord is properly
wired and in good condition. Always
replace a damaged extension cord or have
it repaired by a qualified electrician before
using it. Protect your extension cord from
sharp objects, excessive heat and damp or
wet areas.
Use a separate electrical circuit for your
power tools. This circuit must consist of
not less than 14 gauge wire and should be
protected with either a 15 A time delayed
fuse or a circuit breaker. Before connecting
the power tool to the power source, make
sure the switch is in the OFF position and
the power source is the same as indicated
on the nameplate. Running at lower voltage
will damage the motor.
V
Volts
A
Amperes
Hz
Hertz
W
Watts
KW
Kilowatts
Microfarads
L
Litres
Kg
Kilograms
H
Hours
N/cm2
Newtons per square
centimetre
Pa
Pascals
Min
Minutes
S
Seconds
Alternating current
Three-phase alternating
current
Three-phase alternating
current with neutral
Direct current
No load speed
Alternating or direct current
Class II construction
Splash proof construction
Watertight construction
Protective grounding at
grounding terminal, Class I
tools
Revolutions or
reciprocations per minute
Diameter
Off position
Arrow
Warning symbol
WARNING: Some of the following
symbols may appear on your tool.
Please study them and learn their
meanings. Proper interpretation of
these symbols will allow you to
operate the tool better and safer.
!
MINIMUM GAUGE (AWG)
EXTENSION CORDS (120 V use only)
Amperage
rating
Total length
More
than
Not
more
than
25'
(7.5 m)
50'
(15 m)
100'
(30 m)
150'
(45 m)
0
6
18
16
16
14
6
10
18
16
14
12
10
12
16
16
14
12
12
16
14
12
Not Applicable
3042597
LISTED
This symbol designates that
this tool is listed with Canadian
requirements by ETL Testing
Laboratories, Inc.
Conforms to UL Std. 745-1,
745-2-5. Certified to CAN/CSA
Std. C22.2 No. 745-1, 745-2-5.
JD3521U

10
KNOW YOUR MULTI-CUTTER
Motor vents
Power ON
light
Cutting
depth knob
Blade
guard
Cut line
indicator
Spindle lock
button
Handle grip
Blade guard
fulcrum
ON/OFF
switch
Dust
port
Edge guide
mount
Blade guard
release
Edge guide
locking knobs
Edge guide
Vacuum
hose
adaptor

11
WARNING: If any part is missing
or damaged, do not plug the tool into
the power source until the missing or
damaged part is replaced.
Carefully unpack the multi-cutter. Compare
against the “MULTI-CUTTER
COMPONENTS” chart at right.
NOTE: See product diagram on Page 10.
WARNING: To avoid fire or toxic
reaction, never use gasoline, naphtha,
acetone, lacquer thinner or similar
highly volatile solvents to clean the tool.
!
!
CONTENTS
MULTI-CUTTER COMPONENTS
KEY
DESCRIPTION
QTY
A
Multi-cutter assembly
w/edge guide mount
1
B
Vacuum hose adaptor
1
C
Corundum blade -
#54-1077-4
5
D
Carbide tipped blades
●24 teeth -
#54-1072-4
●36 teeth -
#54-1074-0
1
1
E
Super cut blade –80T
#54-1071-6
1
F
Segmented diamond
wheel –#54-1075-8
1
G
Edge guide
1
H
5 MM Hex key
1
Tote bag
(not illustrated)
1
Owner’s manual
1

12
CONTENTS

13
This multi-cutter precision saw is a versatile
tool that is designed for use in confined
work spaces. By selecting the appropriate
cutting blades, it will cut copper and
aluminum tubing, ceramic and marble tile,
and assorted wood products. The following
assembly and operating instructions will
explain the tool and its operation in detail.
INSTALL VACUUM ADAPTOR
The vacuum adaptor can be used to attach
a workshop vacuum hose to the tool. This
will prevent most cutting dust from
escaping into the work area.
1. Line up the tabs on the small end of
the vacuum adaptor (1) with the
matching slots (2) in the vacuum port
(3) in the rear of the tool (see Fig. 1).
2. Push the vacuum adaptor into the
vacuum port as far as it will go.
3. Twist the vacuum adaptor clockwise to
lock it into position.
SECURE CORD TO VACUUM HOSE
Slide the hook and loop strap (1) down the
power cord (2) and wrap it around the
vacuum hose (3) (see Fig. 2).
REMOVE BLADE GUARD
1. Insert 5 mm hex key (1) into the blade
guard fulcrum nut (2) (see Fig. 3).
2. Turn hex key counter clockwise to
remove the blade guard fulcrum nut.
3. Slide blade guard fulcrum bolt (3) out
of the blade guard (4).
4. Carefully slide the blade guard off the
tool.
REMOVE BLADE
WARNING: Always unplug the tool
from the power source before making
any adjustments or changing the blade.
WARNING: Always be extremely
careful when handling blades. They will
be extremely hot immediately after use.
They are also very sharp and may cause
serious injury.
1. Insert the 5 mm hex key (1) into the
arbor screw (2) on the LEFT side of
the tool (see Fig. 4).
ASSEMBLY AND OPERATION –MULTI-CUTTER
Fig. 3
!
!
Fig. 2
Fig. 1

14
REMOVE BLADE –cont’d
2. Press inward on the spindle lock
button (3) which is located on the
RIGHT side of the tool.
3. Rotate the hex key CLOCKWISE while
pressing on the spindle lock button
until the spindle lock button engages
the spindle.
4. Continue to rotate the arbor screw in a
CLOCKWISE direction until the arbor
screw is removed and the thick arbor
washer (4) can be pulled off the arbor.
NOTE: The arbor screw has a left
hand thread. It must be turned
CLOCKWISE to be removed.
5. Remove the blade (5).
SELECT THE CORRECT BLADE
Before installing a blade into the tool, it is
important to select the correct blade for the
type of material being cut.
WARNING: Using the incorrect
blade type can result in damage to the
blade and possible injury to the
operator.
Blade
Profile
Description
Reinforced cutting disc
85 mm x 1.4 mm corundum
compound.
Cuts non-ferrous metal,
plastic & wood
Carbide tipped blade
85 mm x 1.7 mm x 24 teeth
85 mm x 1.7 mm x 36 teeth
Cuts aluminum, hardwood,
laminates, plastics
HSS Super cut blade
85 mm x 1.0 mm x 80 teeth
Cuts hardwood, soft wood &
plastics
Segmented diamond
blade
85 mm x 1.8 mm
Cuts ceramic and marble
tile, circuit boards &
fiberglass reinforced plastics
INSTALL BLADE
WARNING: Let hot hex nut cool
before attempting to change the blade.
1. Remove existing blade (if one is
installed), arbor screw and thick arbor
washer as noted above.
2. Slide blade (5) into the tool so the hole
in the blade (6) slides over the arbor
(see Fig. 5).
NOTE: Make sure the exposed teeth
of a blade with teeth are pointing
forward.
3. Re-install thick arbor washer and arbor
screw in the reverse order in which
they were removed.
ASSEMBLY AND OPERATION –MULTI-CUTTER
!
!
Fig. 4

15
INSTALL BLADE –cont’d
4. Lock spindle using the spindle lock
button and tighten the arbor screw by
turning it COUNTER CLOCKWISE.
NOTE: The arbor screw has a left
hand thread. It must be turned
COUNTER CLOCKWISE to be
tightened.
5. Re-install blade guard in the reverse
order in which it were removed.
NOTE: At this point you must decide
whether to install the universal blade
guard or the pipe cutting blade guard.
ADJUST CUTTING DEPTH
The cutting depth is controlled by limiting
the amount of blade exposed below the
blade guard.
1. Loosen the depth control knob (1) by
turning it counter clockwise (see
Fig 6).
2. Slide it upward toward the handle (2)
and tighten the knob to hold the depth
stop mechanism in place.
3. Press the blade guard lock button (3)
and carefully pivot the blade guard (4)
upward to expose the amount of blade
(5) to achieve the desired depth of cut.
ADJUST CUTTING DEPTH –cont’d
NOTES:
a) The measurement markings on side of
the blade guard (6) can be used as a guide
in setting the depth of cut. The
measurement mark on the guard that
intersects with the edge of the blade
indicates roughly the depth of cut.
b) Always set the cutting depth 1/8” greater
than the thickness of the workpiece.
c) Always test the depth setting on a scrap
workpiece to verify the setting before
cutting into the good workpiece.
INSTALL EDGE GUIDE MOUNT
1. Insert the edge guide dovetail (1) into
the matching slot (2) in the front of the
blade guard (see Fig 7a).
2. Slide the edge guide mount toward the
right hand side of the blade guard until
the mounting screw (3) lines up with
the matching threaded hole (4) in the
blade guard.
3. Carefully turn the mounting screw
clockwise into the threaded hole until it
holds the edge guide firmly in place.
Fig. 6
ASSEMBLY AND OPERATION –MULTI-CUTTER
Fig. 5

16
INSTALL EDGE GUIDE MOUNT –cont’d
4. Tighten the mounting screw using a
5 mm hex key.
NOTE: Do not over tighten the
mounting screw. You will break the
blade guard.
INSTALL EDGE GUIDE
The multi-cutter can be used with an edge
guide for ripping materials up to 6” wide.
1. Turn two edge guide locking screws
(1) counter clockwise a few turns until
the screws rise about 1/8”
(see Fig. 7b).
2. Insert edge guard rod (2) into the edge
guide mounting block slot (3).
3. Slide edge guard toward the tool until
the desired width of cut is indicated on
the scale (4) where it meets the edge
of the edge guide mounting block.
4. Tighten both edge guide locking
screws.
NOTES:
a) Do not over tighten the edge guide
locking screws or you will break the
edge guide mounting block.
b) The edge guide scale is only an
approximate measurement. Always
check the width of cut on a scrap
workpiece.
Fig. 7b
ASSEMBLY AND OPERATION –MULTI-CUTTER
Have you read “POWER TOOL
SAFETY”, “SPECIFIC SAFETY
RULES”, EXTENSION CORD
SAFETY” and “SYMBOLS” on pages
3, 4, 5, 6 & 7 of this Manual? If not,
please do it now before you operate
this multi-cutter. Your safety
depends on it!
Every time you use the multi-cutter
you should verify the following:
1. Correct blade is installed for the
material being cut.
2. Blade is in good condition and
properly installed.
3. Blade guard is in place and in
good working order.
4. Workpiece is properly secured.
5. Safety glasses are being worn.
Failure to adhere to these safety
rules can greatly increase the
chances of injury.
WARNING
!
Fig. 7a

17
ON/OFF SWITCH
This tool has dual purpose ON/OFF switch
that is designed to prevent accidental
starting of the tool. It also automatically
turns the tool OFF then the switch is not
held in the ON position.
1. Press the center of the switch (1)
inward (see Fig. 8).
2. While holding the center of the switch
inward, slide the switch button (2)
forward until the tool starts.
3. To stop the tool, release the switch
button. It will automatically turn the tool
OFF.
CUTTING (without edge guide)
WARNING: Always use two hands
on the tool when cutting. This will make
operation of the tool easier and promote
maximum safety.
1. Install appropriate cutting blade in the
tool.
2. Adjust cutting depth as outlined on
Page 13.
3. Plug the tool cord into the power
source.
NOTE: The green “power on” light (1)
on the right hand side of the tool will
illuminate when power is “live” (see
Fig. 9).
4. Place leading edge of the blade guard
(2) on the workpiece to be cut (see
Fig. 10).
5. Grasp the tool with two hands. Place
your right hand on the body of the tool
(3) being careful not to cover the motor
vents (4). Place your left hand on the
forward part of the tool (5) so your
thumb can operate the blade guard
release button (6).
6. Line up front cut line indicator (7) with
the cutting line marked on the
workpiece (8).
NOTE: Do not place the blade guard
too far forward on the workpiece. This
is important to avoid the blade
touching the workpiece when the blade
guard is raised to expose the blade as
outlined in instruction # 8.
ASSEMBLY AND OPERATION –MULTI-CUTTER
!
Fig. 8
Fig. 9

18
CUTTING (without edge guide) –cont’d
7. Turn switch ON as outlined on Page
15.
NOTE: Do not proceed any further
until the blade is running at full speed.
8. Using the thumb on your left hand,
press the blade guard release button
(6).
9. Gently press downward on the front of
the tool to raise the blade guard until it
touches the depth control stop (9).
10. Re-check the alignment of the front cut
line indicator (7) and the cutting line
marked on the workpiece (8).
11. Slowly move the tool forward until the
blade touches the workpiece and
begins to cut at the cutting line.
NOTE: Feed the blade into the
workpiece at a slow steady pace. Do
not force the tool so the motor slows
down. The red “overload” light (10) will
illuminate if the motor is being
overloaded. The blade will cut faster
and cleaner when turning at full speed.
WARNING: Never try to cut a curve.
This tool is designed only for straight
line cuts. Attempting to cut curves will
damage the blade, make rough cuts and
possible break the blade. Serious injury
may result.
When the cut is completed, release the
ON/OFF switch and wait for the blade to
come to a complete stop before removing
the tool from the workpiece.
WARNING: Make sure the blade
guard returns to its normal position
covering the blade before taking your
hands off the tool.
CUTTING (with edge guide)
To cut using the edge guide, follow the
same basic principles as noted in
Paragraphs 1 through 11 above. Instead of
following a cutting line, you will simply set
the edge guide at the appropriate width and
hold the guide shoe (1) against the edge of
the workpiece (2) to guide the blade in a
straight line (see Fig. 11).
ASSEMBLY AND OPERATION –MULTI-CUTTER
Illustration
●“Power on” light
!
!
Fig. 10
Fig. 11

19
GENERAL
WARNING: When servicing, use
only identical replacement parts. The
use of any other part may create a
hazard or cause damage to the product.
DO NOT use solvents when cleaning
plastic parts. Plastics are susceptible to
damage from various types of commercial
solvents and may be damaged by their
use. Use a clean cloth to remove dirt, dust,
oil, grease etc.
WARNING: Never allow brake
fluids, gasoline, petroleum-based
products, penetrating oils, etc. to come
into contact with plastic parts. They
contain chemicals that can damage,
weaken or destroy plastic.
DO NOT abuse power tools. Abusive
practices can damage the tool and the
workpiece.
WARNING: DO NOT attempt to
modify tools or to create accessories.
Any such alteration or modification is
considered to be misuse and could
result in a hazardous condition leading
to possible serious injury. It will also
void the warranty.
LUBRICATION
All of the bearings in this tool are lubricated
with a sufficient amount of high-grade
lubricant for the life of the unit under normal
conditions. Therefore, no further lubrication
is required.
MAINTENANCE
!
!
!

20
PARTS DIAGRAM –MODEL 054-1237-4
1
2
3
4
5
6
7
8
9
10
45
11
12
13 14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33 34
35 36
37 38 39
40 41 42 43 44
46 47
48 49 50
51 52 53
54
55
56
57
58
59
60
61
63
1
234567
0
64 62
65
66 67
68 69