model no. 054-8392-0
RANDOM ORBIT SANDER
IMPORTANT:
Read and understand this instruction manual thoroughly
before using the product.
INSTRUCTION
MANUAL
headline bars
TABLE OF CONTENTS
Technical Specifications 4
Safety Guidelines 5
Key Parts Diagram 9
Assembly Instructions 10
Operating Instructions 12
Maintenance 13
Troubleshooting 15
Parts List 16
Warranty 18
3
TABLE OF CONTENTS
NOTE:
If any parts are missing or damaged, or if you have any questions,
please call our toll-free helpline at 1-800-689-9928.
SAVE THESE INSTRUCTIONS
• This manual contains important safety and operating
instructions. Read all instructions and follow them with use
of this product.
headline bars
model no. 054-8392-0 | contact us 1-800-689-9928
4
TECHNICAL SPECIFICATIONS
Rated power input 2.4A
Rated voltage 120V~, 60 Hz
No-load speed 12,500 OPM
Pad size 5" (12.7 cm)
Pad type Hook-and-loop fastening system with 8 holes
Tool weight 2 lb 10 oz (1.19 kg)
Noise level L
Vibration a
: 79.6 dB(A); Lw: 90.6 dB(A)
p
=4.07 m/s2; K=1.5
hi
5
SAFETY GUIDELINES
WARNING!
Safety symbols in this instruction manual are used to flag possible dangers. The safety
symbols and their explanations require your full understanding. The safety warnings do not,
by themselves, eliminate any danger, nor are they substitutes for proper accident prevention
measures.
WARNING!
This safety alert symbol indicates caution, warning, or danger. Failure to obey a safety
warning can result in serious injury to yourself or others. To reduce the risk of injury, fire, or
electric shock, always follow the safety precautions.
KNOW YOUR TOOL
To operate this tool, carefully read this instruction manual and all labels affixed to the random orbit
sander before using. Keep this manual available for future reference.
IMPORTANT
This tool should only be serviced by a qualified service technician. For more information,
call the toll-free helpline at 1-800-689-9928.
TECHNICAL SPECIFICATIONS
READ ALL INSTRUCTIONS THOROUGHLY
SAVE THESE INSTRUCTIONS
GENERAL POWER TOOL SAFETY WARNINGS
WARNING!
Read all safety warnings and instructions. Failure to follow the warnings and instructions
may result in electric shock, fire and/or serious injury.
SAVE ALL WARNINGS AND INSTRUCTIONS FOR FUTURE REFERENCE.
The term “power tool” in the warnings refers to your mains-operated (corded) power tool or
battery-operated (cordless) power tool.
WORK AREA SAFETY
• Keep the work area clean and well lit. Cluttered or dark areas invite accidents.
• Do not operate power tools in explosive atmospheres, such as in the presence of
flammable liquids, gases or dust. Power tools create sparks, which may ignite the dust or
fumes.
• Keep children and bystanders away while operating a power tool. Distractions can cause
you to lose control.
SAFETY GUIDELINES
headline bars
model no. 054-8392-0 | contact us 1-800-689-9928
6
ELECTRICAL SAFETY
• Power tool plugs must match the outlet. Never modify the plug in any way. Do not use
any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching
outlets will reduce risk of electric shock.
• Avoid body contact with earthed or grounded surfaces, such as pipes, radiators,
ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or
grounded.
• Do not expose power tools to rain or wet conditions. Water entering a power tool will
increase the risk of electric shock.
• Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the
power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or
entangled cords increase the risk of electric shock.
• When operating a power tool outdoors, use an extension cord suitable for outdoor use.
Use of a cord suitable for outdoor use reduces the risk of electric shock.
• If operating a power tool in a damp location is unavoidable, use a ground-fault circuit
interrupter (GFCI) protected supply. Use of a GFCI reduces 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 a power tool while you are tired or under the influence of drugs,
SAFETY GUIDELINES
alcohol or medication. A moment of inattention while operating power tools may result in
serious personal injury.
• Use personal protective equipment. Always wear eye protection. Protective equipment
such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate
conditions will reduce personal injuries.
• Prevent unintentional starting. Ensure that the switch is in the off-position before
connecting to power source and/or battery pack, picking up or carrying the tool.
Carrying power tools with your finger on the switch or energising power tools that have the
switch on invites accidents.
• Remove any adjusting key or wrench before turning the power tool on. A wrench or a
key left attached to a rotating part of the power tool may result in personal injury.
• Do not overreach. Keep proper footing and balance at all times. This enables better
control of the power tool in unexpected situations.
• Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and
gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in moving
parts.
• If devices are provided for the connection of dust extraction and collection facilities,
ensure that these are connected and properly used. Use of these devices can reduce dust-
related hazards.
7
POWER TOOL USE AND CARE
• Do not force the power tool. Use the correct power tool for your application. The correct
power tool will do the job better and more safely at the rate for which it was designed.
• Do not use the power tool if the switch does not turn it on and off. Any power tool that
cannot be controlled with the switch is dangerous and must be repaired.
• Disconnect the plug from the power source and/or the battery pack from the power
tool before making any adjustments, changing accessories, or storing power tools.
Such preventive safety measures reduce the risk of starting the power tool accidentally.
• Store idle power tools out of the reach of children and do not allow persons unfamiliar
with the power tool or these instructions to operate the power tool. Power tools are
dangerous in the hands of untrained users.
• Maintain power tools. Check for misalignment or binding of moving parts, breakage of
parts and any other condition that may affect the power tool’s operation. If damaged,
have the power tool repaired before use. Many accidents are caused by poorly maintained
power tools.
• Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting
edges are less likely to bind and are easier to control.
• Use the power tool, accessories, tool bits, etc. in accordance with these instructions,
taking into account the working conditions and the work to be performed. Use of the
power tool for operations different from those intended could result in a hazardous situation.
SAFETY GUIDELINES
SERVICE
• Have your power tool serviced by a qualified repair person using only identical
replacement parts. This will ensure that the safety of the power tool is maintained.
SAFETY GUIDELINES FOR SANDER
• Hold power tool by insulated gripping surfaces, when performing an operation where
the cutting accessory may contact hidden wiring or its own cord. Cutting accessory
contacting a “live” wire may expose metal parts of the power tool “live” and could give the
operator an electric shock.
• A suitable breathing respirator must be worn while sanding lead paint, some woods and
metal to avoid breathing the harmful/toxic dust or air.
• Always wear safety goggles and a dust mask when sanding, especially sanding overhead.
• The machine is not suitable for wet sanding.
• Secure the workpiece. A workpiece clamped with clamping devices or in a vise is held more
securely than by hand.
• Do not leave the tool running. Operate the tool only when hand-held.
headline bars
headline bars
model no. 054-8392-0 | contact us 1-800-689-9928
8
• Protect your hearing. Wear appropriate personal hearing protection during use. Under
some conditions and duration of use, noise from this product may contribute to hearing loss.
• The label on your tool may include the following symbols. The symbols and their
definitions are as follows:
V ..................... Volts
A ..................... Amperes
Hz ................... Hertz
W .................... Watts
min ................. Minutes
................. Alternating current
n
…/min ........... Revolutions or reciprocation per minute
BPM ............... Beats per minute
SAFETY GUIDELINES
............. Direct current
................... No-load speed
0
............... Class II Construction
............... Grounding terminal
.............. WARNING – To reduce the risk of injury, user must read instruction manual.
.............. WARNING – To reduce the risk of injury always wear eye protection.
.............. WARNING – To reduce the risk of injury always wear ear protection.
9
PACKAGE CONTENTS:
Random orbit sander, sandpaper, dust box and instruction manual.
KEY PARTS DIAGRAM
1
KEY PARTS DIAGRAM
2
No. Description No. Description
1 Sealed on/off rocker switch 3 Dust box
2 Sanding pad
WARNING!
• Remove the sander from the package and examine it carefully. Do not discard the
carton or any packaging material until all parts have been examined.
3
headline bars
headline bars
model no. 054-8392-0 | contact us 1-800-689-9928
10
ASSEMBLY INSTRUCTIONS
ATTACHING THE SANDPAPER
1. Disconnect the sander from the power source.
2. Place the sander upside down on a flat surface.
3. Remove any dust or debris from the sanding pad.
4. Align the holes of the sandpaper with the holes in the
sanding pad and firmly press the sandpaper against
the sanding pad to ensure a good attachment.
ASSEMBLY INSTRUCTIONS
(fig 1)
fig 1
DUST BOX
Your sander is supplied with a dust box to help you keep the working area clean. The dust box is ideal
for smaller jobs.
To install:
1. Disconnect the sander from the power source.
2. Press the dust box port down onto the slot in the
dust-exhaust port until the detent fully engages
with corresponding opening in the dust box (fig 2).
To remove:
1. Disconnect the sander from the power source.
2. Raise the dust box port and remove the box from the
sander.
SELECTING THE RIGHT GRADE OF
SANDPAPER
Different grades of sandpaper can be purchased from the store where you purchased the tool.
Available grades are: Coarse, Medium and Fine.
Use a coarse grit to sand down rough finishes, medium grit to smooth the work and fine grit to finish off.
It is best to make a trial run on a scrap piece of material to determine the optimum grades of
sandpaper for a particular job.
fig 2
Dust-exhaust port
11
ASSEMBLY INSTRUCTIONS
NOTICE: In order for the dust extraction system to operate properly, the holes in the pad must align with
holes in the sandpaper.
WARNING!
• Never connect the sander to the power source when you are assembling parts, making adjustments,
installing or removing sandpaper, cleaning, or when it is not in use. Disconnecting the sander will
prevent accidental starting, which could cause serious personal injury.
WARNING!
• Do not use the dust box when sanding metal. Using the dust box when sanding metal
creates a fire hazard, which could damage the tool and lead to serious personal injury.
headline bars
model no. 054-8392-0 | contact us 1-800-689-9928
12
OPERATING INSTRUCTIONS
13
MAINTENANCE
TURNING THE SANDER ON/OFF
To turn on the sander, depress the side of the rocker
switch marked “I”.
To turn it off, depress the side of the rocker switch
marked “O”.
SANDING
This sander can be used for most sanding operations
on materials such as wood, plastic, metal and painted
surfaces. Do not use the sander for wet sanding.
1. Plug the sander to the power source.
2. Place the sander on the workpiece so that the sandpaper is fully in contact with the workpiece.
3. Start the sander.
4. For best sanding results, apply light pressure on the sander, but do not force the tool.
5. Move the sander slowly over the workpiece, making successive passes in parallel lines, circles, or
crosswise movements. The removal rate and the sanding pattern are determined by the choice of
sandpaper and the work surface.
OPERATING INSTRUCTIONS
6. Do not allow sanding on one spot too long, as the sander’s rapid action may remove too much
material and make the surface uneven.
7. Upon completion of the sanding operation, remove the sander from the workpiece, turn the sander
off and wait until it comes to a complete stop before putting it down.
(fig 3)
fig 3
BEFORE EACH USE
1. Inspect the sander, the rocker switch, the cord and the accessories for damage.
2. Check for damaged, missing, or worn parts.
3. Check for loose screws, misalignment or binding of moving parts, or any other condition that may
affect the operation.
4. If abnormal vibration or noise occurs, turn the tool off immediately and have the problem corrected
before further use.
5. Unplug the tool from the power source before cleaning or performing any maintenance. Using
compressed air may be the most effective cleaning method. Always wear safety goggles when
cleaning tools using compressed air.
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
NOTE: Applying additional pressure only slows the motor, rapidly wears sandpaper, and greatly
reduces sander speed. Excessive pressure will overload the motor, possibly causing damage from motor
overheating and can result in inferior work.
WARNING!
• Before connecting the sander to a power source, always check to be sure that the switch is in the OFF
(O) position. Failure to do so could result in accidental starting of the sander, causing possible serious
injury.
WARNING!
• Do not let brake fluids, gasoline and petroleum-based products, penetrating oil, etc.
come into contact with plastic parts. These substances contain chemicals that can
damage, weaken, or destroy plastic.
• When servicing, use only identical replacement parts. The use of any other parts may
create a hazard or cause damage to the product.
• Use only accessories that are recommended for this sander by the manufacturer.
Accessories that may be suitable for one tool may become hazardous when used with
another tool.
• If the supply cord is damaged, it must be replaced by a specially-prepared cord
available through the service organization.
• To ensure safety and reliability, all repairs should be performed by a qualified service
technician.
headline bars
headline bars
model no. 054-8392-0 | contact us 1-800-689-9928
14
CLEANING THE DUST BOX
Always empty and clean the dust box thoroughly
when you’ve finished sanding and before you store
the sander.
To empty the dust box
1. Remove the dust box from the sander and shake
out the dust.
2. For a more thorough cleaning of the dust box,
open the upper cover and gently shake or tap the
dust box to empty it.
3. Use a soft brush to clean the filter in the cover.
(fig 4)
fig 4
Upper cover
TROUBLESHOOTING
Problem Possible Causes Solution
The sander does not start Not connected to power source Plug the sander into a power
source
Unsatisfactory sanding
result
If the problem remains unsolved after performing the checks described above, call the toll-free helpline
at 1-800-689-9928.
Sandpaper is worn Replace with new sandpaper
Sandpaper is not suitable for the
workpiece
Use correct sandpaper
15
MAINTENANCE
WARNING!
• Collected sanding dust from sanding surface coatings such as polyurethanes, linseed oil, etc., can
self-ignite in the sander dust box or elsewhere and cause fire. To reduce the risk of fire, always empty
the dust box frequently while sanding and never store or leave a sander without totally emptying its
dust box. Also follow the recommendations of the coating manufacturers.
TROUBLESHOOTING
headline bars
headline bars
model no. 054-8392-0 | contact us 1-800-689-9928
16
EXPLODED VIEW
PARTS LIST
No. Part No. Description No. Part No. Description
1 3127055000 Switch cover 21 5700008000 Ball bearing
2 4870051000 Switch 22 3126439000 Left housing
3 4930008000 Sleeve 23 5690013000 O ring
4 4960273000 Carbon brush 24 2740099000 Stator
5 2800176000 Brush holder 25 3700415001 Gasket
6 3700490000 Epoxy board 26 3402301000 Dust fan
7 3121011000 Cord guard 27 3421477000 Counterweight
8 4810002000 Power cord and plug 28 5650041000 Plain washer
9 2490136000 Nylon string 29 3402638000 Bearing support
assembly
10 4930004000 Connecter 30 3700090000 Washer
11 3120234000 Cord anchorage 31 5620069000 Screw
12 5610024000 Tapping screw 32 3127058000 Bearing clamp
13 3126493000 Right housing 33 3127158000 Brake ring
14 5610106000 Tapping screw 34 2823602000 Base pad
15 4930041000 Receptacle 35 5620342000 Screw with washer
16 4860298000 Internal wire assembly 301 3810300000 Sanding paper
17 4860302000 Internal wire assembly 300 2821986000 Dust box assembly
18 4860299000 Internal wire assembly 303 3700979000 Dust filter paper
201 2824316000 Rotor set 304 3700981000 Sponge
19 2751034000 Rotor 305 3121373000 Dust box
20 5660029000 E ring
17
PARTS LIST
If any parts are missing or damaged, or if you have any questions, please call the toll-free helpline,
at 1-800-689-9928.
headline bars
headline bars
model no. 054-8392-0 | contact us 1-800-689-9928
18
19
h) this warranty will not apply to normal deterioration of the exterior finish, such as, but not limited to,
scratches, dents, paint chips, or to any corrosion or discolouring by heat, abrasive and chemical
cleaners; and
i) this warranty will not apply to component parts sold by and identified as the product of another
company, which shall be covered under the product manufacturer’s warranty, if any.
Additional Limitations
This warranty applies only to the original purchaser and may not be transferred. Neither the retailer nor
the manufacturer shall be liable for any other expense, loss or damage, including, without limitation,
any indirect, incidental, consequential or exemplary damages arising in connection with the sale, use or
inability to use this product.
This Mastercraft product is guaranteed for a period of 3 years from the date of original retail
purchase against defects in workmanship and materials, except for the following components:
a) Component A: Batteries, chargers and carrying case, which are guaranteed for a period of 2 years
b) Component B: Accessories, which are guaranteed for a period of 1 year from the date of original
Subject to the conditions and limitations described below, this product, if returned to us with proof
of purchase within the stated warranty period and if covered under this warranty, will be repaired or
replaced (with the same model, or one of equal value or specification), at our option. We will bear the
WARRANTY
cost of any repair or replacement and any costs of labour relating thereto.
These warranties are subject to the following conditions and limitations:
a) a bill of sale verifying the purchase and purchase date must be provided;
b) this warranty will not apply to any product or part thereof which is worn or broken or which has
c) this warranty will not apply to normal wear and tear or to expendable parts or accessories that may be
d) this warranty will not apply to routine maintenance and consumable items such as, but not limited
e) this warranty will not apply where damage is caused by repairs made or attempted by others (i.e.
f) this warranty will not apply to any product that was sold to the original purchaser as a
g) this warranty will not apply to any product or part thereof if any part from another manufacturer
from the date of original retail purchase against defects in workmanship and materials;
retail purchase against defects in workmanship and materials.
become inoperative due to abuse, misuse, accidental damage, neglect or lack of proper installation,
operation or maintenance (as outlined in the applicable owner’s manual or operating instructions) or
which is being used for industrial, professional, commercial or rental purposes;
supplied with the product that are expected to become inoperative or unusable after a reasonable period
of use;
to, fuel, lubricants, vacuum bags, blades, belts, sandpaper, bits, fluids, tune-ups or adjustments;
persons not authorized by the manufacturer);
reconditioned or refurbished product (unless otherwise specified in writing);
is installed therein or any repairs or alterations have been made or attempted by unauthorized
persons;
Notice to Consumer
This warranty gives you specific legal rights, and you may have other rights, which may vary from
province to province. The provisions contained in this warranty are not intended to limit, modify, take
away from, disclaim or exclude any statutory warranties set forth in any applicable provincial or federal
legislation.
Made in China
Imported by
Mastercraft Canada Toronto, Canada M4S 2B8
WARRANTY
Loading...