Makita BO4552 Finishing Sander

Specifications

Specifications are subject to change without notice and may differ from country to country.

General Safety Rules

⚠️ WARNING: Read all instructions. Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury.

The term "power tool" in all warnings refers to mains-operated (corded) or battery-operated (cordless) power tools.

SAVE THESE INSTRUCTIONS

Work Area Safety

• Keep work area clean and well lit. Cluttered and dark areas invite accidents.
• Do not operate power tools in explosive atmospheres (e.g., presence of flammable liquids, gases, or dust). Power tools create sparks that may ignite dust or fumes.
• Keep children and bystanders away while operating a power tool. Distractions can cause loss of control.

Electrical Safety

• Power tool plugs must match the outlet. Never modify the plug. Do not use adapter plugs with earthed (grounded) power tools.
• Avoid body contact with earthed or grounded surfaces (pipes, radiators, ranges, refrigerators).
• Do not expose power tools to rain or wet conditions.
• Do not abuse the cord. Keep cord away from heat, oil, sharp edges, or moving parts. Damaged or entangled cords increase the risk of electric shock.
• When operating outdoors, use an extension cord suitable for outdoor use.

Personal Safety

• Stay alert, watch what you are doing, and use common sense. Do not use a power tool when tired or under the influence of drugs, alcohol, or medication.
• Use safety equipment: always wear eye protection. Dust masks, non-skid shoes, hard hats, or hearing protection reduce personal injuries.
• Avoid accidental starting: Ensure the switch is in the off-position before plugging in.
• Remove any adjusting key or wrench before turning the power tool on.
• Do not overreach. Keep proper footing and balance.
• Dress properly: Do not wear loose clothing or jewellery. Keep hair, clothing, and gloves away from moving parts.
• If dust extraction facilities are provided, ensure they are connected and properly used.

Power Tool Use and Care

• Do not force the power tool. Use the correct tool for your application.
• Do not use the power tool if the switch does not turn it on and off.
• Disconnect the plug or battery pack before making adjustments, changing accessories, or storing the tool.
• Store idle power tools out of reach of children and do not allow untrained persons to operate them.
• Maintain power tools: Check for misalignment, binding, or breakage. Have damaged tools repaired.
• Keep cutting tools sharp and clean.
• Use the power tool, accessories, and bits according to instructions and intended use.

Service

• Have your power tool serviced by a qualified repair person using only identical replacement parts.
• Follow instructions for lubricating and changing accessories.
• Keep handles dry, clean, and free from oil and grease.

Specific Safety Rules

⚠️ WARNING: MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury.

• Hold power tools by insulated gripping surfaces when the cutting tool may contact hidden wiring or its own cord.
• Always use safety glasses or goggles. Ordinary eye or sun glasses are NOT safety glasses.
• Hold the tool firmly.
• Do not leave the tool running. Operate the tool only when hand-held.
• This tool is not waterproofed; do not use water on the workpiece surface.
• Ventilate your work area adequately when sanding.
• Some materials contain toxic chemicals. Take precautions to prevent dust inhalation and skin contact. Follow material supplier safety data.
• Sanding certain products, paints, and wood may expose you to dust containing hazardous substances. Use appropriate respiratory protection.
• Ensure the pad has no cracks or breakage before use.

Symbols

The following symbols are used for the tool:

• V: Volts
• A: Amperes
• Hz: Hertz
• ~: Alternating current
• (no load speed): No load speed
• : Class II Construction
• .../min: Orbits per minute

Functional Description

Switch Action:

The switch has an ON (I) and OFF (O) position. The switch can be locked in the ON position for extended use, but caution is advised, and a firm grip must be maintained.

Punch Plate:

Used to make holes in abrasive paper for dust collection. Place the punch plate over the sandpaper, align it, and press down to create holes. Ensure the punch plate is removed before operating the tool.

Dust Bag:

Attaches to the dust spout for clean sanding and dust collection. Empty the bag when approximately half full.

Assembly

Installing or Removing Abrasive Paper

Operate the clamp lever to open the paper clamp. Insert the paper end, center it, align edges parallel to the pad, and lower the lever to secure. Repeat for the other end, ensuring proper tension. Check that the clamp teeth hold the paper securely to prevent slippage.

Operation

Sanding Operation

Never run the tool without abrasive paper, as this can damage the pad. Do not force the tool; excessive pressure reduces efficiency and tool life.

Hold the tool firmly. Turn it on, wait for full speed, then gently place it on the workpiece surface, keeping the pad flush and applying slight pressure.

Maintenance

To maintain safety and reliability, repairs, carbon brush inspection/replacement, and other maintenance should be performed by Makita Authorized or Factory Service Centers using only Makita replacement parts.

Accessories

Recommended accessories include:

• Abrasive papers
• Punch plate
• Dust bag
• Adaptor (for connecting to vacuum cleaner)

Use only accessories for their stated purpose to avoid injury.

Makita Limited One Year Warranty

Makita tools are warranted to be free of defects in workmanship and materials for one year from the original purchase date. Return the complete tool to a Makita Factory or Authorized Service Center for repair or replacement if a defect is found. This warranty does not apply to repairs necessitated by normal wear and tear, abuse, misuse, improper maintenance, or alterations. Makita is not liable for indirect, incidental, or consequential damages. Implied warranties of merchantability and fitness for a specific purpose are disclaimed after the one-year term.

California Proposition 65 Warning (USA Only)

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. To reduce exposure, work in a well-ventilated area and use approved safety equipment, such as dust masks designed for microscopic particles.