Makita BO4900V, BO4900, BO4901 - Finishing Sander Manual

SPECIFICATIONS

Model	BO4900V	BO4900	BO4901
Pad size	115 mm x 229 mm	115 mm x 229 mm	115 mm x 229 mm
Abrasive paper size	115 mm x 280 mm	115 mm x 280 mm	115 mm x 280 mm
Orbits per minute (min-1)	4,000 - 10,000	10,000	10,000
Sanding stroke rate (min-1)	8,000 - 20,000	20,000	20,000
Overall length	289 mm	289 mm	289 mm
Net weight	2.7 kg	2.7 kg	2.7 kg
Safety class	/II

• Due to our continuing programme of research and development, the specifications herein are subject to change without notice.
• Specifications may differ from country to country.
• Weight according to EPTA-Procedure 01/2003

Intended use
The tool is intended for the sanding of large surface of wood, plastic and metal materials as well as painted surfaces.

Power supply
The tool should be connected only to a power supply of the same voltage as indicated on the nameplate, and can only be operated on single-phase AC supply. They are double-insulated in accordance with European Standard and can, therefore, also be used from sockets without earth wire.

Noise
The typical A-weighted noise level determined according to EN60745:
Sound pressure level (L pA ): 71 dB(A)
Uncertainty (K): 3 dB(A)
The noise level under working may exceed 80 dB (A).
Wear ear protection

Vibration
The vibration total value (tri-axial vector sum) determined according to EN60745:

Model BO4900,BO4900V
Work mode: sanding metal plate
Vibration emission (a_h): 2.5 m/s² or less
Uncertainty (K): 1.5 m/s²

Model BO4901
Work mode: sanding metal plate
Vibration emission (a_h): 4.0 m/s²
Uncertainty (K): 1.5 m/s²

• The declared vibration emission value has been measured in accordance with the standard test method and may be used for comparing one tool with another.
• The declared vibration emission value may also be used in a preliminary assessment of exposure.

• The vibration emission during actual use of the power tool can differ from the declared emission value depending on the ways in which the tool is used.
• Be sure to identify safety measures to protect the operator that are based on an estimation of exposure in the actual conditions of use (taking account of all parts of the operating cycle such as the times when the tool is switched off and when it is running idle in addition to the trigger time).

FUNCTIONAL DESCRIPTION

• 
  Always be sure that the tool is switched off and unplugged before adjusting or checking function on the tool.

Switch action

• 
  Before plugging in the tool, always check to see that the switch trigger actuates properly and returns to the "OFF" position when released.

To start the tool, simply pull the switch trigger. Release the switch trigger to stop.
For continuous operation, pull the switch trigger and then push in the lock button.
To stop the tool from the locked position, pull the switch trigger fully, then release it.

Speed adjusting dial

For BO4900V only

1. Speed adjusting dial
2. Lock button
3. Switch trigger

• If the tool is operated continuously at low speeds, the motor will get overloaded and heated up.
• The speed adjusting dial can be turned only as far as 5 and back to 1. Do not force it past 5 or 1, or the speed adjusting function may no longer work.

The tool speed can be infinitely adjusted between 4,000 and 10,000 orbits per minute by turning the speed adjusting dial, which is marked 1 to 5. Higher speed is obtained when the dial is turned in the direction of number 5, lower speed is obtained when it is turned in the direction of number 1. Adjust the desired tool speed for the kind of work.

ASSEMBLY

• 
  Always be sure that the tool is switched off and unplugged before carrying out any work on the tool.

Installing or removing abrasive paper

For conventional type of abrasive paper with pre-punched holes (standard equipment):
Turn the clamp lever counterclockwise. Insert the paper end into the clamper, aligning the holes in the paper with those in the pad. Then return the clamp lever to the original position to secure the paper. Repeat the same process for the other end of the tool, maintaining the proper paper tension.

1. Clamp lever
2. Conventional type of abrasive paper with pre-punched holes
3. Pad for conventional type of abrasive paper

For conventional type of abrasive paper without pre-punched holes (accessory):
Turn the clamp lever counterclockwise. Insert the paper end into the clamper, aligning the paper edges even and parallel with the sides of the base. Then return the clamp lever to the original position to secure the paper. Repeat the same process for the other end of the tool, maintaining the proper paper tension.
Place the punch plate (optional accessory) over the paper so that the guide of the punch plate is flush with the sides of the pad. Then press the punch plate to make holes in the paper.

1. Punch plate
2. Conventional type of abrasive paper without pre-punched holes

For hook-and-loop type of abrasive paper with pre-punched holes (accessory):
Remove all dirt or foreign matter from the pad. Attach the paper to the pad, aligning the holes in the paper with those in the pad.

1. Hook-and-loop type of abrasive paper with pre-punched holes
2. Pad for hook-and-loop type of abrasive paper

• 
  Never use pressure-sensitive abrasive paper.

For BO4901 only

NOTE:

• To use the hook-and-loop type of abrasive paper, first replace the pad. Remove the pad for the conventional type of abrasive paper from the tool with a screwdriver.
  Install the pad for the hook-and-loop type of abrasive paper (optional accessory) on the tool. Tighten the screws firmly to secure the pad.
  

1. Pad
2. Screws
3. Screwdriver

Installing paper dust bag (accessory)

For BO4900, BO4900V only
Place the paper dust bag on the paper dust bag holder with its front side upward. Insert the front fixing cardboard of the paper dust bag into the groove of the paper dust bag holder.

1. Groove
2. Front fixing cardboard
3. Paper dust bag

Then press the upper part of the front fixing card-board in arrow direction to hook it onto the claws.

1. Claws
2. Upper part

Insert the notch of the paper dust bag into the guide of the paper dust bag holder. Then install the paper dust bag holder set on the tool.

1. Guide
2. Notch

Installing dust bag (accessory)

For BO4900, BO4900V only
Install the dust bag on the tool so that the arrow with "UP" indicated on the dust nozzle points upward.

Emptying dust bag
When the dust bag is about half full, switch off and unplug the tool. Hold the tool and remove the dust bag from the dust nozzle while pressing the push button.

1. Push button

1. Dust nozzle
2. Hook
3. Dust bag
4. Push button

After emptying the dust bag, insert the hook on the dust nozzle into the rectangular hole on one side of the dust bag frame until it clicks into place on the oush the button.

Connecting to vacuum cleaner

When you wish to perform cleaner operation, connect a vacuum cleaner to your tool. Connect a hose of vacuum cleaner to the dust nozzle.

OPERATION

• Never run the tool without the abrasive paper. You may seriously damage the pad.
• Never force the tool. Excessive pressure may decrease the sanding efficiency, damage the abrasive paper and/or shorten tool life.
• The front grip is a screwed type one. Always be sure that the front grip is tightened securely before operation.

Turn the tool on and wait until it attains full speed. Then gently place the tool on the workpiece surface. Keep the base flush with the workpiece and apply a light pressure on the tool.

MAINTENANCE

• Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance.
• Never use gasoline, benzine, thinner, alcohol or the like. Discoloration, deformation or cracks may result.

To maintain product SAFETY and RELIABILITY, repairs, carbon brush inspection and replacement, any other maintenance or adjustment should be performed by Makita Authorized Service Centers, always using Makita replacement parts.

ACCESSORIES

• 
  These accessories or attachments are recommended for use with your Makita tool specified in this manual. The use of any other accessories or attachments might present a risk of injury to persons. Only use accessory or attachment for its stated purpose.

If you need any assistance for more details regarding these accessories, ask your local Makita Service Center.

• Abrasive paper (with pre-punched holes)
• Abrasive paper (without pre-punched holes)
• Hook-and-loop type of abrasive paper
• Joint
• Dust bag and dust nozzle
• Paper dust bag
• Paper dust bag holder
• Dust bag
• Punch plate
• Pad (For use with hook-and-loop type of abrasive paper)

General Power Tool Safety Warnings

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.

SANDER SAFETY WARNINGS

1. Always use safety glasses or goggles. Ordinary eye or sun glasses are NOT safety glasses.
2. Hold the tool firmly.
3. Do not leave the tool running. Operate the tool only when hand-held.
4. This tool has not been waterproofed, so do not use water on the workpiece surface.
5. Ventilate your work area adequately when you perform sanding operations.
6. Some material contains chemicals which may be toxic. Take caution to prevent dust inhalation and skin contact. Follow material supplier safety data.
7. Use of this tool to sand some products, paints and wood could expose user to dust containing hazardous substances. Use appropriate respiratory protection.
8. Be sure that there are no cracks or breakage on the pad before use. Cracks or breakage may cause a personal injury.

SAVE THESE INSTRUCTIONS.

DO NOT let comfort or familiarity with product (gained from repeated use) replace strict adherence to safety rules for the subject product. MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury.

EC Declaration of Conformity

Tomoyasu Kato
Director
Makita Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi, 446-8502, JAPAN

Documents / Resources

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