WORKPRO ELECTRIC RANDOM ORBIT SANDER

Introduction

Purpose of the Equipment

The equipment is designed for the grinding/sanding of wood, iron, plastic and similar materials using the appropriate grinding/sanding paper. The machine is not suitable for wet grinding/sanding.

The equipment is to be used only for its prescribed purpose. Any other use is deemed to be a case of misuse. The user / operator and not the manufacturer will be liable for any damage or injuries of any kind caused as a result of this.

Please note that this equipment has not been designed for use in commercial, trade or industrial applications. The warranty will be voided if the machine is used in commercial, trade or industrial businesses or for equivalent purposes.

Safety Precautions

[WARNING] Do not attempt to use this tool until you have read thoroughly and understand completely the operator's manual. Pay close attention to the safety rules, including Dangers, Warnings, and Cautions. If you use your tool properly and only for what it is intended, you will enjoy years of safe, reliable service.

[WARNING] Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood.

👀[WEAR YOUR SAFETY GLASSES] [FORESIGHT IS BETTER THAN NO SIGHT] The operation of any power tool can result in foreign objects being thrown into your eyes, which can result in severe eye damage. Before beginning tool operation, always wear safety goggles or safety glasses with side shields and a full face shield when needed. Wide Vision Safety Mask is recommended for use over eyeglasses or standard safety glasses with side shields. Always wear eye protection.

General Power Tool Safety Warnings

[WARNING] Read all safety warnings and all 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 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.

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, 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 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 these are connected and properly used. Use of dust collection can reduce dust-related hazards.
• Do not wear loose clothing or jewelry. Contain long hair. Loose clothes, jewelry, or long hair can be drawn into air vents.
• Do not use on a ladder or unstable support. Stable footing on a solid surface enables better control of the power tool in unexpected situations.

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 safer 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.

General Power Tool Safety Warnings (Continued)

• 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 and 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.
• Use clamps (not included) or other practical ways to secure and support the workpiece to a stable platform. Holding the work by hand or against your body is unstable and may lead to loss of control and personal injury.
• People with pacemakers should consult their physician(s) before use. Electromagnetic fields in close proximity to heart pacemakers could cause pacemaker interference or pacemaker failure. In addition, people with pacemakers should:
  • Avoid operating alone.
  • Do not use with power switch locked on.
• Properly maintain and inspect to avoid electrical shock.
• Properly ground power cord. Ground fault circuit interrupter (GFCI) should also be implemented; it prevents sustained electrical shock.

The warnings, precautions, and instructions discussed in this instruction manual cannot cover all possible conditions and situations that may occur. It must be understood by the operator that common sense and caution are factors which cannot be built into this product, but must be supplied by the operator.

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.
• When servicing a power 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 create a risk of shock or injury.

Sander Safety Warnings

• Hold power tool by insulated gripping surfaces, when performing an operation where the cutting accessory may contact hidden wiring. Cutting accessory contacting a "live" wire may make exposed metal parts of the power tool "live" and could give the operator an electric shock.
• Know your power tool. Read operator's manual carefully. Learn its 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 with side shields marked to comply with ANSI Z87.1. Following this rule will reduce the risk of serious personal injury.
• Protect your lungs. Wear a face or dust mask if the operation is dusty. Following this rule will reduce the risk of serious personal injury.
• Protect your hearing. Wear hearing protection during extended periods of operation. Following this rule will reduce the risk of serious personal injury.
• Inspect tool cords periodically and, if damaged, have repaired at your nearest authorized service center. Constantly stay aware of cord location. Following this rule will reduce the risk of electric shock or fire.
• Check damaged parts. Before further use of the tool, a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended function. Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting, and any other conditions that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced by an authorized service center. Following this rule will reduce the risk of shock, fire, or serious injury.
• Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. A wire gauge size (A.W.G.) of at least 16 is recommended for an extension cord 50 feet or less in length. A cord exceeding 100 feet is not recommended. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the cord. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating.
• Inspect for and remove all nails from lumber before using this tool. Following this rule will reduce the risk of serious personal injury.
• If the power supply cord is damaged, it must be replaced only by the manufacturer or by an authorized service center to avoid risk.
• Save these instructions. Refer to them frequently and use them to instruct others who may use this product. If you loan someone this product, loan them these instructions also.

Symbols

Signal Words and Meanings

Product Symbols

Electrical

Double Insulation

Double insulation is a concept in safety in electric power tools, which eliminates the need for the usual three-wire grounded power cord. All exposed metal parts are isolated from the internal metal motor components with protecting insulation. Double insulated tools do not need to be grounded.

[WARNING] The double insulated system is intended to protect the user from shock resulting from a break in the tool's internal insulation. Observe all normal safety precautions to avoid electrical shock.

NOTE: Servicing of a product with double insulation requires extreme care and knowledge of the system and should be performed only by a qualified service technician. For service, we suggest you return the product to your nearest authorized service center for repair. Always use original factory replacement parts when servicing.

Electrical Connection

This product has a precision-built electric motor. It should be connected to a power supply that is 120 volts, AC only (normal household current), 60 Hz. Do not operate this product on direct current (DC). A substantial voltage drop will cause a loss of power and the motor will overheat. If the product does not operate when plugged into an outlet, double-check the power supply.

Extension Cords

When using a power tool at a considerable distance from a power source, be sure to use an extension cord that has the capacity to handle the current the product will draw. An undersized cord will cause a drop in line voltage, resulting in overheating and loss of power. Use the chart to determine the minimum wire size required in an extension cord. Only round jacketed cords listed by Underwriter's Laboratories (UL) should be used.

When working outdoors with a product, use an extension cord that is designed for outside use. This type of cord is designated with “W-A” or “W” on the cord's jacket.

Before using any extension cord, inspect it for loose or exposed wires and cut or worn insulation.

*Used on 12 gauge - 20 amp circuit.

NOTE: AWG = American Wire Gauge

[WARNING] Keep the extension cord clear of the working area. Position the cord so that it will not get caught on lumber, tools, or other obstructions while you are working with a power tool. Failure to do so can result in serious personal injury.

[WARNING] Check extension cords before each use. If damaged replace immediately. Never use the product with a damaged cord since touching the damaged area could cause electrical shock resulting in serious injury.

Specifications

Unpacking

Instructions

• Your sander has been shipped completely assembled.
• Carefully remove the tool and accessories from the box. Make sure that all items listed in the packing list are included.
• Inspect the tool carefully to make sure no breakage or damage occurred during shipping.
• Do not discard the packing material until you have carefully inspected and satisfactorily operated the tool.

Packing List

• Random Orbit Sander
• Dust Canister
• Sandpaper (60 grits, 80 grits, 120 grits, 180 grits, 240 grits each 3 pieces)
• Operator's Manual

[WARNING] If any parts are missing do not operate your tool until the missing parts are replaced. Failure to do so could result in possible serious personal injury.

Features

Double Insulation

Double insulation is a concept in safety in electric power tools, which eliminates the need for the usual three-wire grounded power cord. All exposed metal parts are isolated from the internal metal motor components with protecting insulation. Double insulated tools do not need to be grounded.

[WARNING] The double insulated system is intended to protect the user from shock resulting from a break in the tool's internal wiring. Observe all normal safety precautions to avoid electrical shock.

Important: Servicing of a tool with double insulation requires extreme care and knowledge of the system and should be performed only by a qualified service technician. For service, we suggest you return the tool to your nearest authorized service center for repair. Always use original factory replacement parts when servicing.

Electric Motor

Your sander has a precision built electric motor. It should be connected to a power supply that is 120 Volts, 60Hz, AC only (normal household current). Do not operate this tool on direct current (DC). A substantial voltage drop will cause a loss of power and the motor will overheat. If your tool does not operate when plugged into an outlet, double-check the power supply.

Switch

Your sander has a conveniently located rocker switch.

Variable Speed

The variable speed feature allows you to operate the sander at different speeds.

Backing Pad

The backing pad on the sander provides the capability to use sanding discs with pressure sensitive adhesive-backing material.

Random Orbit

The random orbit motion provides overlapping sanding movements by combining orbital and turning motion. These overlapping sanding movements provide fast cutting action with excellent sanding results.

Ergonomic Design

The design of the sander provides for easy handling. It is designed for comfort and a ease of grasp when operating in different positions and at different angles.

Know Your Product

Diagram (Fig. 1) shows the WORKPRO electric random orbit sander with labeled parts:

• A: On/Off Switch
• B: Speed Control Switch
• C: Ventilation Slots
• D: Micro-Filter
• E: Dust Canister
• F: Sanding Disc (Includes 15 discs: 3 each of 60, 80, 120, 180, 240 grits)

[WARNING] Do not attempt to modify this tool or create accessories not recommended for use with this tool. Any such alteration or modification is misuse and could result in a hazardous condition leading to possible serious personal injury.

Operation

General Warnings

[WARNING] Do not allow familiarity with products to make you careless. Remember that a careless fraction of a second is sufficient to inflict serious injury.

[WARNING] Always wear eye protection with side shields marked to comply with ANSI Z87.1. Failure to do so could result in objects being thrown into your eyes resulting in possible serious injury.

[WARNING] Do not use any attachments or accessories not recommended by the manufacturer of this product. The use of attachments or accessories not recommended can result in serious personal injury.

Turning the Sander On/Off

See Figure 2. Follow these directions to turn the sander on and off. Press the rocker switch to "I" to turn the sander on. Press the rocker switch to "O" to turn the sander off.

Adjusting the Speed

See Figure 3. The variable speed feature allows the sander to operate at speeds that can be adjusted by rotating the dial from 1 to 6. The dial is conveniently located on the motor housing, allowing operator control of disc speed. Follow these directions to adjust the speed.

• To increase the speed: Turn the dial to a higher setting (towards 6).
• To decrease the speed: Turn the dial to a lower setting (towards 1).

Selecting Sanding Discs

Selecting the correct size grit and type of sanding disc is an extremely important step in achieving a high quality sanded finish. Aluminum oxide, silicon carbide, and other synthetic abrasives are best for power sanding. Natural abrasives, such as flint and garnet are too soft for power sanding.

In general, when sanding, coarse grit removes the most material and fine grit produces the best finish. The condition of the surface to be sanded determines which grit will do the best job. If the surface is rough, start with a coarse grit and sand until the surface is uniform. Then use medium grit to remove scratches left by the coarser grit. Finally, use finer grit for finishing the surface. Always continue sanding with each grit until the surface is uniform.

Attaching Sanding Discs

See Figure 4. NOTE: Use only 125mm hook-and-loop sanding discs which can be found at local home centers and hardware stores.

• Unplug the sander.
• Align the holes in the hook-and-loop sanding disc with the holes in the backing pad. NOTE: Line up the holes in the sanding disc with the holes in the backing pad in order for the dustless feature to function properly.
• Press the fuzzy side of the sanding disc against the backing pad as firmly as possible.

[WARNING] Failure to unplug the tool could result in accidental starting causing possible serious injury.

NOTE: You can reuse hook-and-loop type sanding discs for the life of the sanding abrasive. We recommend that you clean the backing pad occasionally by brushing it lightly with a small brush for best adhesion.

Changing the Sanding Discs

The sander is packed with sanding sheets and pads designed for a variety of uses. To change, simply pull the used sheet or pad off the base and attach the desired sheet or pad by pressing it onto the base of the sander.

Using the Dust Canister

The dust canister provides a dust collection system for the sander. Sanding dust is drawn up through the holes of the sanding disc and collected in the dust canister during sanding.

Removing and Installing Dust Canister

• Unplug the sander.
• To remove dust canister, Pull the dust canister away from the dust port (Fig. 5).
• To install dust canister, align dust port with hole in dust canister (Note that the protrusion on the dust canister should be aligned with the groove of the dust port), push the canister into the dust port until it locks into place.

[WARNING] Failure to unplug the tool could result in accidental starting causing possible serious injury.

Cleaning and Emptying the Dust Canister

For more efficient operation, empty the dust canister when it is no more than half full. This will permit the air to flow through the canister better. Always empty and clean the dust canister thoroughly upon completion of a sanding operation and before placing the sander in storage.

To empty canister, remove dust canister and pour out the dust inside.

NOTE: Do not wash the micro filter with soap and water. Dust may become more firmly lodged in the pores, which will reduce dust collection, and damage the micro filter.

Operating the Sander

See Figures 6 and 7. Follow these steps to operate the sander.

• Secure the work to prevent it from moving under the sander.

[WARNING] Unsecured workpieces could be thrown towards the operator causing injury.

[WARNING] Keep your head away from the sander and the sanding area. Your hair could be drawn into the sander causing serious injury.

• Place the sander on the workpiece so that all of the sanding disc surface is in contact with the workpiece.

[CAUTION] Be careful not to let your hand cover the air vents.

• Start the sander and let the motor build to its maximum speed, move it slowly over the workpiece. Make successive passes in parallel lines, circles, or crosswise movements.

NOTE: Do not sand on one spot too long as the sander's rapid action may remove too much material, making the surface uneven.

• Turn the sander off and wait until the sanding disc comes to a complete stop before removing it from the workpiece.

NOTE: Extended periods of sanding may overheat the motor. If this occurs, turn the sander off and wait until the sanding disc comes to a complete stop. Remove sander from workpiece.

Operation (Continued)

Helpful Tips

• Do not force the sander. The weight of the unit supplies adequate pressure; therefore, let the sanding disc and sander do the work. Applying additional pressure only slows the motor, rapidly wears the sanding disc, and greatly reduces the sander speed. Excessive pressure will overload the motor causing possible damage from motor overheating and can result in inferior work. Any finish or resin on the wood may soften from the frictional heat.
• Do not sand on one spot too long. The sander's rapid action may remove too much material, making the surface uneven. Extended periods of sanding may tend to overheat the motor. If this occurs, turn off the sander and wait until the sanding disc comes to a complete stop. Then remove the sander from the workpiece. Remove your hand from the vent area, remove the sanding disc, then (with your hand removed from the vent area) turn on the sander and run it free, without a load, to cool the motor.

Maintenance

General

Avoid using solvents when cleaning plastic parts. Most plastics are susceptible to damage from various types of commercial solvents and may be damaged by their use. Use clean cloths to remove dirt, carbon dust, etc.

[WARNING] Do not at any time let brake fluids, gasoline, petroleum-based products, penetrating oils, etc. come in contact with plastic parts. They contain chemicals that can damage, weaken, or destroy plastic.

When electric tools are used on fiberglass boats, sports cars, wallboard, spackling compounds, or plaster, it has been found that they are subject to accelerated wear and possible premature failure, as the fiberglass chips and grindings are highly abrasive to bearings, brushes, commutators, etc. Consequently, it is not recommended that this tool be used for extended work on any fiberglass material, wallboard, spackling compounds, or plaster. If, however, you do work with any of these materials, it is extremely important that the tool is cleaned frequently by blowing with an air jet.

[WARNING] Always wear safety goggles or safety glasses with side shields during power tool operation or when blowing dust. If operation is dusty, also wear a dust mask.

Lubrication

All of the bearings in this product are lubricated with a sufficient amount of high grade lubricant for the life of the unit under normal operating conditions. Therefore, no further lubrication is required.

Power Supply Cord Replacement

If replacement of the power supply cord is necessary, this must be done by an authorized service center in order to avoid a safety hazard.

Cleaning Scrubbing Pads

To ensure longer life and optimum performance, periodically clean all residue and foreign materials from scrubbing pads. This can be done simply by rinsing the pad with warm water until all foreign material has been washed away. After cleaning, gently squeeze the pad to remove excess water and allow pad to dry. Always store pads and sanding sheets flat in a cool, dry location.

Cleaning Sanding Sheets

The sanding sheets that came with the sander are made to be re-used. Therefore, it is important that they be cleaned periodically to remove sanding residue and foreign material that can accumulate over time.

To clean sanding sheets, rub the sheets with a hard rubber block.

[WARNING] Always remove the scrubbing pad or sanding sheet from sander before cleaning. Failure to do so could cause serious personal injury.

Disposal and Recycling

Disposal of the appliance

A crossed-out wheelie bin icon means: Batteries and rechargeable batteries, electrical or electronic devices must not be disposed of with household waste. They may contain substances that are harmful to the environment and human health.

Consumers must dispose of waste electrical devices, spent portable batteries and rechargeable batteries separately from household waste at an official collection point to ensure that these items are processed correctly. Information on returning these items is available from the seller. Sellers are required to accept these items free of charge. Batteries and rechargeable batteries, which are not permanently installed in waste electrical devices, must be removed prior to disposal and must be disposed of separately. Lithium batteries and battery packs in all systems must only be returned to a collection point when discharged. Batteries must always be protected against short circuits by covering the poles with adhesive tape. All end users are responsible for deleting any personal data stored on waste devices prior to their disposal.

Disposal of the packaging

The packaging consists of cardboard and correspondingly marked plastics that can be recycled. Make these materials available for recycling.

Zhejiang Wuyi Gongli Electric Machine Co., Ltd. No. 53 Qingyun Road, Feng Huang Shan Industry Zone, Donggan Village, Wuyi County, Jinhua City 321201 Zhejiang P.R. China