TOUGH-WORKS MM493B Instruction Manual

MM493B

1" X 30" BELT
AND 5" DISC SANDER

IMPORTANT:

For your own safety, read and follow all of the Safety
Guidelines and Operating Instructions before operating
this product.

INSTRUCTION
MANUAL

BD4603

MM493B

TABLE OF CONTENTS

TABLE OF CONTENTS ...............................................................................................

SPECIFICATIONS .......................................................................................................

SAFETY GUIDELINES ................................................................................................

ELECTRICAL SAFETY .................................................................................................

PACKAGE CONTENTS ..............................................................................................

KEY PARTS DIAGRAN

ASSEMBLY/MOUNTING

OPERATION .................................................................................................................

MAINTENANCE ............................................................................................................

TROUBLESHOOTING GUIDE .....................................................................................

EXPLONED VIEW .........................................................................................................

PARTS LIST ..................................................................................................................

WARRANTY ..................................................................................................................

..................................................................................................

........................................................................................

2
2
4

6
7

8

12

13

14

16

17

19

20

2

TABLE OF CONTENTS

SPECIFICATIONS

Motor 120 V AC, 60 Hz, 2.3 Amp,1/3HP

Phase Single

Disc Speed 3450RPM

Belt Speed 3270 SFPM

Belt Size

Belt Table dimensions 5-3/4" Dia.

Disc Table dimensions 7-3/16 x 3-7/8"

Tables tilt 0 to 45°

1" x 30 "

3

BD4603

For your own safety, read and understand
all warnings and operating instructions before
using any tool or equipment.

Some dust created by power sanding, sawing,
grinding,drilling 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.

• Arsenic and chromium from chemically-treated
lumber.
Your risk from these exposures vary, 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. Always wear OSHA/

SAFETY GUIDELINES

NIOSH approved, properly fitting face mask or
respirator when using such tools.

Always follow proper operating procedures as
defined in this manual even if you are familiar with
the use of this or similar tools. Remember that
being careless for even a fraction of a second can
result in severe personal injury.

WORK PREPARATION

• Wear proper apparel. Do not wear loose clothing,
gloves,neckties, rings, bracelets or other jewelry
which may get caught in moving parts of the tool.

• Wear protective hair covering to contain long
hair.

• Wear safety shoes with non-slip soles.

• Wear safety glasses complying with United
States ANSI Z87.1. Everyday glasses have only
impact resistant lenses. They are NOT safety
glasses.

• Wear face mask or dust mask if operation is
dusty.

• Be alert and think clearly. Never operate power
tools when tired, intoxicated or when taking

MM493B

medications that cause drowsiness.

WORK AREA PREPARATION

• Keep work area clean. Cluttered work areas
invite accidents.

• Do not use power tools in dangerous en­ vironments. Do not use power tools in damp
or wet locations. Do not expose power tools
to rain.

• Work area should be properly lit.

• Proper electrical receptacle should be
available for tool. Three-prong plug should
be plugged directly into properly grounded,
three-prong receptacle.

• Extension cords should have a grounding
prong and the three wires of the extension
cord should be of the correct gauge.

• Keep visitors at a safe distance from work
area.

• Keep children out of the work area. Ensure
your work shop is child-proof. Use padlocks,
master switches or remove switch keys to
prevent any unintentional use of power tools.

TOOL MAINTENANCE

• Always unplug tool prior to inspection.

• Consult manual for specific maintaining
and adjusting procedures.

• Keep tool lubricated and clean for a safe
operation.

• Remove adjusting tools. Form habit of
checking to see adjusting tools or accessories
are removed before switching tool on.

• Keep all parts in working order. Check to
determine that guard or other parts will
operate properly and perform their intended
function.

• Check for damaged parts. Check for alig­ nment of moving parts, binding, breakage,
mounting and any other condition that may
affect tool’s operation.

• A guard or any other part that is damaged
should be properly repaired or replaced. Do
not perform makeshift repairs.

TOOL OPERATION

• Use the right tool for your job. Do not force
your tool or attachment to do a job for which
it was not designed.

• Avoid accidental start-up. Make sure that

the tool is in the “OFF" position before plugging
in.

• Know your tool. Learn the tool’s operation,
application and specific limitations before
using it.

• Sander MUST be used with Dust Collector to
capture dust.

• Disconnect tool when changing belt or abrasive
disc.

• Do not force tool. It will work most efficiently at
the rate for which it was designed.

• Keep hands away from moving parts and sanding
surfaces.

• Never leave tool running unattended. Turn the
power off and do not leave tool until it comes
to a complete stop.

• Do not overreach. Keep proper footing and
balance.

• Never stand on tool. Serious injury could occur
if tool is tipped or if belt or disc are unintenti­ onally contacted.

• Know your tool. Learn the tool’s operation,
application and specific limitations.

• Use recommended accessories (refer to page 13).
Use of improper accessories may cause risk of

injury to persons.

• Handle the workpiece correctly. Protect hands
from possible injury.

• Turn machine off if it jams. Belt jams when it
digs too deeply into workpiece. (Motor force keeps
it stuck in the work.)

• Support workpiece with miter gauge, belt platen
or work table.

• Maintain 1/16 ″ maximum clearance between
table and sanding belt or disc.

MM493B

4

SAFETY GUIDELINES

CAUTION

Think safety! Safety is a combination of operator
common sense and alertness at all times when
tool is being used.

Do not attempt to operate tool until it is completely
assembled according to the instructions.

5

BD4603

POWER SOURCE

Do not connect dust collector to the power source
until all assembly steps have been completed.

The motor is designed for operation on the
voltage and frequency specified. Normal loads will
be handled safely on voltages not more than 10%
above or below specified voltage. Running the
unit on voltages which are not within the range may
cause overheating and motor burn-out.

Heavy loads require that the voltage at motor
terminals be no less than the voltage specified
on nameplate.

GROUNDING INSTRUCTIONS

Improper connection of equipment grounding
conductor can result in the risk of electrical
shock. Equipment should be grounded while
in use to protect operator from electrical shock.

• Check with a qualified electrician if you do not

ELECTRICAL SAFETY

understand grounding instructions or if you
are in doubt as to whether the tool is properly
grounded.

• This tool is equipped with an approved cord
rated at 120V and a 3-prong grounding type
plug (see Figure A)for your protection against
shock hazards.

• Grounding plug should be plugged directly
into a properly installed and grounded 3-prong
grounding typer eceptacle, as shown (see

Figure A).

MM493B

Do not permit fingers to touch the terminals of
plug when installing or removing from outlet.

• Plug must be plugged into matching outlet
that is properly installed and grounded in
accordance with all local codes and ordin­ ances. Do not modify plug provided. If it will
not fit in outlet, have proper outlet installed
by a qualified electrician.

• Inspect tool cords periodically, and if damaged,
have repaired by an authorized service facility.

• Green (or green and yellow) conductor in cord
is the grounding wire. If repair or replacement
of the electric cord or plug is necessary, do
not connect the green (or green and yellow)
wire to a live terminal.

• Where a 2-prong wall receptacle is enco­ untered, it must be replaced with a properly
grounded 3-prong receptacle installed in
accordance with National Electric Code and
local codes and ordinances.

This work should be performed by a qualified
electrician.
A temporary 3-prong to 2-prong grounding
adapter (see Figure B) is available for conn­ecting plugs to a two pole outlet if it is properly
grounded.

Figure A

Properly Grounded Outlet

3-Prong Plug

Grounding Prong

• Do not remove or alter grounding prong in
any manner. In the event of a malfunction
or breakdown, grounding provides a path of
least resistance for electrical shock.

Figure B

• Do not use a 3-prong to 2-prong grounding
adapter unless permitted by local and national
codes and ordinances. (A 3-prong to 2-prong
grounding adapter is not permitted in Canada.)

Where permitted, the rigid green tab or terminal
on the side of the adapter must be securely
connected to a permanent electrical ground
such as a properly grounded water pipe, a
properly grounded outlet box or a properly

MM493B

6

grounded wire system.

• Many cover plate screws, water pipes and
outlet boxes are not properly grounded. To
ensure proper ground, grounding means must
be tested by a qualified electrician.

EXTENSION CORDS

• The use of an extension cord is not reco­ mmended.
The use of any extension cord will cause some
drop in voltage and loss of power.

• Wires of the extension cord must be of
sufficient size to carry the current and maintain
adequate voltage.

• Use the table to determine the minimum wire
size(A.W.G.) extension cord.

• Use only 3-wire extension cords having 3­ prong grounding type plugs and 3-pole rec­ eptacles which accept the tool plug.

• If the extension cord is worn, cut or damaged
in any Extension Cord Length.

Extension Cord Length

Wire Size…………….. 18 A.W.G.
Up to 25 ft
25 to 50 ft

NOTE: Using extension cords over 50 ft. long

is not recommended.

. . . . . . . . . . . . . . . . . . . . 18

. . . . . . . . . . . . . . . . . . . . . .16

MOTOR

The sander is assembled with motor and wiring
installed. The electrical wiring schematic is
shown in Figure B.

MOTOR SPECIFICATIONS:

off and disconnected from power source while
motor is mounted, connected, reconnected
or anytime wiring is inspected.

Motor and wires are installed as shown in
wiring schematic (See Figure C). Motor is ass­embled with approved, 3-conductor cord to be used
at 120 volts.

Figure C

The power lines are inserted directly into the
switch. The green ground line must remain
securely fastened to the frame to properly
protect against electrical shock. The power
supply to the motor is controlled by a single
pole locking rocker switch.

• Remove the key to prevent unauthorized
use.

C

ELECTRICAL SAFETY

Horsepower (Continuous Duty) 1/3
Voltage 120
Amp 2.3
Hertz 60

Phase Single
RPM 3450

ELECTRICAL CONNECTIONS

All electrical connections must be performed
by a qualified electrician. Make sure tool is