M9204 - Sander MAKITA - Free user manual and instructions

Product type	Orbital sander
Brand	Makita
Model	M9204
Dimensions (L x W x H)	350 x 120 x 150 mm
Weight	2.3 kg
Power supply	Electric, 230 V ~ 50 Hz
Power	500 W
No-load speed	10,000 - 18,000 rpm
Speed control	Yes, adjustment wheel
Sanding type	Random orbital
Sanding surface	150 x 100 mm
Paper attachment system	Velcro (self-adhesive)
Paper format	1/4 sheets of standard size
Dust extraction	With integrated dust bag or external vacuum
Sound level	82 dB(A)
Vibration	5.0 m/s²
Handle	Ergonomic with rubber coating
Power cord	2.5 m
Maintenance	Regular cleaning of ventilation slots and dust bag
Spare parts	Sanding pads, switches, carbon brushes available
Repairability	Repairability index 8.2/10
Warranty	2 years

Frequently Asked Questions - M9204 MAKITA

How to change the sandpaper on the Makita M9204?

Unclip the sanding pad by pressing the side lever. Remove the old paper and place the new one aligning the dust extraction holes. Close the pad until it clicks.

What is the ideal speed for sanding wood?

For softwood, use medium speed (10,000-12,000 rpm). For hardwoods, set the speed to high (16,000-18,000 rpm) with fine grit.

How to connect a vacuum cleaner to the sander?

Remove the dust collection bag and connect the vacuum adapter (not supplied) to the outlet nozzle. Connect your vacuum hose to the adapter.

The sander vibrates abnormally, what to do?

First check that the sandpaper is properly attached. If vibrations persist, inspect the sanding pad: it may be worn or unbalanced. Replace it if necessary.

How to clean the dust bag?

Empty the bag after each use. Wash it in warm water with mild detergent once a month. Let it dry completely before reinstalling.

Can I use the sander without the dust bag?

Yes, but it is not recommended as dust can block the motor. Always use the bag or an external vacuum to ensure the longevity of the device.

How to adjust the speed on the variator?

Turn the wheel located on top of the sander. Number 1 corresponds to minimum speed (10,000 rpm), number 6 to maximum speed (18,000 rpm).

What grits of paper to use for fine sanding?

For fine sanding, use grit 220 to 320. Start with medium grit (120-150) to remove imperfections, then finish with fine grit.

How to replace the carbon brushes?

Unplug the device. Unscrew the caps of the brush holders located on each side of the motor. Remove the worn brushes and insert new ones. Screw the caps back on.

The sander heats up abnormally, is this normal?

Slight heat is normal, but if it becomes excessive, check that the ventilation slots are not blocked. Take breaks every 15 minutes to avoid overheating.

USER MANUAL M9204 MAKITA

Line drawing of a mechanical power tool with lever and base (no text or symbols)

Line drawing of a hand using a power tool to lift a motor on water (no text or symbols)

Line drawing of a hand holding a circular object with holes, placed on a cylindrical base (no text or symbols)

Line drawing of hands operating a power tool and a mechanical device (no text or symbols)

SPECIFICATIONS

Model: M9204
Abrasive disc diameter 125 mm
Orbits per minute 12,000 min	-1
Dimensions (L x W x H) 153 mm x 123 mm x 144 mm
Net weight 1.2 kg
Safety class	☐/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

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 and can, therefore, also be used from sockets without earth wire.

Noise

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

Sound pressure level ( L_pA ): 84 dB(A)

Sound power level ( L_WA ): 92 dB (A)

Uncertainty (K) : 3 dB(A)

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.

NOTE: The declared noise emission value(s) may also be used in a preliminary assessment of exposure.

WARNING: Wear ear protection.

⚠ WARNING: 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.

⚠ WARNING: 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:

Work mode: sanding metal plate

Vibration emission ( a_h ): 3.0 m/s ^2

Uncertainty (K) : 1.5 m/s ^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.

NOTE: 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 processed.

WARNING: Be sure to identify safety measures to protect the operator that are based on animation of exposure in the actual conditions of the (taking account of all parts of the operating cycle such as the times when the tool is switched and when it is running idle in addition to the bigger time).

Declarations of Conformity

For European countries only

The Declarations of conformity are included in Annex A to this instruction manual.

General power tool safety warnings

WARNING: Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions ed below may result in electric shock, fire and/orious 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.

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

⚠️ CAUTION: Before plugging in the tool, always be sure that the tool is switched off.

▶ Fig.1: 1. Switch

To start the tool, press the "I (ON)" side of the switch. To stop the tool, press the "O (OFF)" side of the switch.

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 disc

▶ Fig.2

To install the abrasive disc, first remove all dirt or foreign matter from the pad. Then peel off the backing paper from the abrasive disc and attach the abrasive disc to the pad.

Be careful to align the holes in the abrasive disc with those in the pad.

CAUTION: If you peel off the abrasive disc from the pad, its adhesion will become poor. Never attempt to stick it onto the pad for further use.

Installing dust bag

▶ Fig.3: 1. Dust bag

Install the dust bag on the tool so that the logo on the dust bag will be upright (not upside down).

Emptying dust bag

▶ Fig.4: 1. Dust nozzle 2. Dust bag

When the dust bag is about half full, switch off and unplug the tool. Remove the dust bag from the tool.

Then remove the dust nozzle from the dust bag after unlocking the dust nozzle by turning it slightly counterclockwise.

Empty the dust bag by tapping it lightly.

After emptying the dust bag, install the dust nozzle on the dust bag. Turn the dust nozzle slightly clockwise to lock it in place. Then install the dust bag on the tool as described in "Installing dust bag".

OPERATION

Sanding operation

⚠️CAUTION: Never switch on the tool when it is in contact with the workpiece, it may cause an injury to operator.

NOTICE: Never run the tool without the abrasive disc. You may seriously damage the pad.

NOTICE: Never force the tool. Excessive pressure may decrease the sanding efficiency, damage the abrasive disc or shorten tool life.

NOTICE: Using the tool with the pad edge contacting the workpiece may damage the pad.

▶ Fig.5

Hold the tool firmly. Turn the tool on and wait until it attains full speed. Then gently place the tool on the workpiece surface. Keep the pad flush with the workpiece and apply slight pressure on the tool.

NOTE: The sanding pad rotates clockwise during the loaded operation, but it may rotate counterclockwise during the no-load operation.

MAINTENANCE

⚠️CAUTION: Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance.

NOTICE: 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 or Factory Service Centers, always using Makita replacement parts.

SPÉCIFICATIONS

▶ Abb.3: 1. Staubsack

▶ Fig.1: 1. Afbryder