BO4901J - Sander MAKITA - Free user manual and instructions

Product type	Belt sander
Brand	Makita
Model	BO4901J
Base dimensions	115 mm x 229 mm
Abrasive paper dimensions	115 mm x 280 mm
Overall length	289 mm
Net weight	2.9 kg
Power supply	Single-phase mains, double insulation (class II)
No-load speed	4000 - 10,000 oscillations/min
Sanding stroke rate	8000 - 20,000 min⁻¹
Speed adjustment	Rotary dial from 1 to 5
Abrasive paper type	Standard (with/without holes) and self-adhesive
Paper fastening system	Clamping levers and self-adhesive pad (optional)
Dust collection	Paper dust bag included
Vacuum connection	Possible via plug
Sound level	71 dB(A) (uncertainty K = 3 dB)
Vibrations (sheet metal sanding)	4.0 m/s² (uncertainty K = 1.5 m/s²)
Compatible materials	Wood, plastic, metal, painted surfaces
Safety	Double insulation, lock button, trigger
Maintenance	Regular cleaning; repairs only at Makita authorized service center
Included accessories	Standard abrasive paper, dust bag, clamping lever, screwdriver
Optional accessories	Self-adhesive pad, perforated plates, self-adhesive papers

Frequently Asked Questions - BO4901J MAKITA

What types of abrasive paper can I use on the Makita BO4901J?

You can use standard abrasive paper (with or without pre-punched holes) and self-adhesive abrasive paper. For the latter, it is necessary to replace the pad with a self-adhesive pad (optional accessory).

How to change the sanding pad?

Make sure the tool is switched off and unplugged. Remove the existing pad using a screwdriver, then attach the new pad by tightening the screws fully.

Can I use the tool continuously?

Yes, you can lock the trigger in continuous operation position using the lock button. To stop, pull the trigger fully then release it. However, avoid prolonged use at low speed to prevent overloading the motor.

How to connect a vacuum cleaner?

Connect the vacuum hose to the plug on the tool. This allows a cleaner work by vacuuming dust directly.

What is the procedure for emptying the dust bag?

When the bag is half full, turn off and unplug the tool. Remove the bag by pressing the push button, empty it, then reinsert the plug hook into the hole until it clicks.

How to adjust the sanding speed?

Turn the speed adjustment dial graduated from 1 to 5. The higher the number, the greater the speed (from 4,000 to 11,000 oscillations/min). Do not force beyond the extreme positions.

What are the essential safety instructions?

Always wear protective goggles, appropriate respiratory protection and ear muffs. Do not work with water on the surface, ventilate well, and hold the tool firmly.

How to maintain the tool?

Always unplug before any maintenance. Clean the tool with a dry cloth – never use gasoline, thinner or alcohol. For repairs and carbon brush replacement, contact a Makita authorized service center.

What are the noise and vibration levels?

The sound level is 71 dB(A) with an uncertainty of 3 dB. The vibrations emitted when sanding sheet metal are 4.0 m/s² (uncertainty 1.5 m/s²). Wear ear muffs.

What materials can I sand with this sander?

The tool is designed for sanding wood, plastic, metal and painted surfaces. For some materials, take precautions against toxic dust.

USER MANUAL BO4901J MAKITA

Explanation of general view

1 Speed adjusting dial
2 L o c k b u t
3 Switch trigger
4 Clamp lever
5 Conventional type of abrasive paper with pre-punched holes
6 Pad for conventional type of abrasive paper
7 Punch plate

8 Conventional type of abrasive
o paper without pre-punched holes
9Hook-and-loop type of abrasive paper with pre-punched holes
10 Pad for hook-and-loop type of abrasive paper
11 Pad
12 Screws
13 Screwdriver

14 Groove
15 Front fixing cardboard
16 Paper dust bag
17 Claws
18 Upper part
19Guide
20 Notch
21 Push button
22 Dust nozzle
23 Hook
24 Dust bag

SPECIFICATIONS

Model BO4900V BO4900 BO4901

Pad size 115 mm x 229 mm

115mmx229mm 115mmx229mm

Abrasive paper size 115 mm x 280 mm 115

mm x 280 mm 115 mm x 280 mm

Orbits per minute (^-1) 4,000-10,000

10,000 10,000

Sanding stroke rate (^-1) 8,000-20,000

20,000 20,000

Overall length 289 mm

289mm 289mm

Net weight 2.9kg

2.9kg 2.8kg

Safety class 1

回/II 回/II

• Due to our continuing program 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 01/2014

ENE052-1

Intended use

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

ENF002-1

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.

GEA010-2

General power tool safety warnings

WARNING: Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below 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.

GEB021-4

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.

WARNING: 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.

FUNCTIONAL DESCRIPTION

CAUTION:

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

Switch action (Fig. 1)

CAUTION:

• 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

CAUTION:

• 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 11,000 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

CAUTION:

• 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 prepunched 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. (Fig. 2)

For conventional type of abrasive paper without prepunched 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. (Fig. 3)

For hook-and-loop type of abrasive paper with prepunched 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. (Fig. 4)

CAUTION:

• 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. (Fig.5)

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.

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. (Fig.6)

Then press the upper part of the front fixing cardboard in arrow direction to hook it onto the claws. (Fig. 7)

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. (Fig. 8 & 9)

Installing dust bag (accessory) (Fig. 10)

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. (Fig. 11 & 12)

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 push button. (Fig. 13)

Connecting to vacuum cleaner (Fig. 14)

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

CAUTION:

• 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

CAUTION:

• 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.

OPTIONAL ACCESSORIES

CAUTION:

• 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)

NOTE:

• Some items in the list may be included in the tool package as standard accessories. They may differ from country to country.

ENG905-1

Noise

The typical A-weighted noise level determined according to EN62841:

Sound pressure level (L_pA) : 71 dB (A)

Uncertainty (K): 3 dB (A)

The noise level under working may exceed 80dB (A).

ENG907-1

NOTE:

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

WARNING:

• Wear ear protection.

• The noise emission during actual use of the power tool can differ from the declared value(s) depending on the ways in which the tool is used especially what kind of workpiece is processed.

• 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).

Vibration

The vibration total value (tri-axial vector sum) determined according to EN62841:

Model BO4900, BO4900V

Work mode: sanding metal plate

Vibration emission (_h) .. 2.5m / s^2 or less

Uncertainty (K): 1.5m / s^2

Model BO4901

Work mode: sanding metal plate

Vibration emission (a_h) .. 4.0~m / s^2

Uncertainty (K): 1.5m / s^2

ENG901-2

NOTE:

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

WARNING:

• The vibration emission during actual use of the power tool can differ from the declared value(s) depending on the ways in which the tool is used especially what kind of workpiece is processed.
• 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).

EC DECLARATION OF CONFORMITY

For European countries only

The EC declaration of conformity is included as Annex A to this instruction manual.

Descriptif

ACCESSIONS EN OPTION

ATTENTION:

Model BO4900, BO4900V

OPTIONELE ACCESSOIRES

LET OP:

Model BO4900, BO4900V

Model BO4900, BO4900V