MAKITA DGA504 (01) PDF MANUAL

MAKITA DGA504 (01) PDF SUMMARY:

What are the steps to install or remove the battery cartridge?

To remove the battery cartridge, slide it from the tool while sliding the button on the front of the cartridge. To install the battery cartridge, align the tongue on the battery cartridge with the groove in the housing and slip it into place. Insert it all the way until it locks in place with a little click. If you can see the red indicator, it is not locked completely. Push it in fully until the red indicator cannot be seen. If not, it may accidentally fall out of the tool, causing injury.

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How can I indicate the remaining battery capacity?

Press the check button on the battery cartridge to indicate the remaining battery capacity. The indicator lamps light up for a few seconds. The battery indicator shows the remaining battery capacity when you turn the tool on.

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How does the battery indicator show the remaining battery capacity?

When the indicator lamps are:

• Lighted: 75% to 100% capacity
• Off: 50% to 75% capacity
• Blinking: 25% to 50% capacity
• Blinking with the first indicator lamp: 0% to 25% capacity, or the battery protection system is activated

When the battery indicator on the tool is:

• On: 50% to 100% capacity
• Off: 20% to 50% capacity
• Blinking: 0% to 20% capacity

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What happens when the tool is overloaded?

When the tool is operated in a manner that causes it to draw an abnormally high current, the tool automatically stops without any indication. In this situation, turn the tool off and stop the application that caused the tool to become overloaded. Then turn the tool on to restart.

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What happens when the tool is overheated?

When the tool is overheated, the tool stops automatically and the battery indicator shows the following state: On, Blinking. In this situation, let the tool cool before turning the tool on again. If the tool does not start, the battery may be overheated. In this situation, let the battery cool before starting the tool again.

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What happens when the battery is over discharged?

When the battery capacity is not enough, the tool stops automatically. In this case, remove the battery from the tool and charge the battery.

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What do I do if the protection system works repeatedly and the tool is locked?

When the protection system works repeatedly, the tool is locked and the battery indicator shows the following state: On, Off, Blinking. In this situation, the tool does not start even if turning the tool off and on. To release the protection lock, remove the battery, set it to the battery charger and wait until the charging finishes.

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What are the steps to clear the causes when the tool has stopped?

Take all the following steps to clear the causes, when the tool has been brought to a temporary halt or stop in operation:

1. Turn the tool off, and then turn it on again to restart.
2. Charge the battery(ies) or replace it/them with recharged battery(ies).
3. Let the tool and battery(ies) cool down. If no improvement can be found by restoring protection system, then contact your local Makita Service Center.

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How do I use the shaft lock?

Press the shaft lock to prevent spindle rotation when installing or removing accessories.

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What is the proper switch action to use the tool?

To start the tool, press down the rear end of the slide switch and then slide it toward the “I (ON)” position. For continuous operation, press down the front end of the slide switch to lock it. To stop the tool, slide the slide switch so that it returns to the “O (OFF)” position.

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What are the operation modes and how does the tool change between them?

This tool has “high speed mode” and “high torque mode”. It automatically changes operation mode depending on the work load. When the mode indicator lights up during operation, the tool is in high torque mode.

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What is the procedure for using the accidental re-start preventive function?

When installing the battery cartridge while the switch is ON, the tool does not start. To start the tool, turn off the switch, and turn it on again.

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What is the purpose of the tool’s electronic detection?

The tool electronically detects situations where the wheel or accessory may be at risk to be bound. In the situation, the tool is automatically shut off to prevent further rotation of the spindle (it does not prevent kickback). To restart the tool, switch off the tool first, remove the cause of sudden drop in the rotation speed, and then turn the tool on.

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What is the soft start feature?

The soft start feature reduces starting reaction.

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How do I install the side grip (handle)?

Screw the side grip securely on the position of the tool.

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How do I mount the wheel guard for a depressed center wheel, flap disc, flex wheel, or wire wheel brush?

The wheel guard must be fitted on the tool so that the closed side of the guard always points toward the operator.

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How do I mount the wheel guard for an abrasive cut-off / diamond wheel?

Be sure to use only the special wheel guard designed for use with cut-off wheels.

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How do I mount the wheel guard for a tool with a locking screw type wheel guard?

Mount the wheel guard with the protrusions on the wheel guard band aligned with the notches on the bearing box. Then rotate the wheel guard to such an angle that it can protect the operator according to work. Be sure to tighten the screw securely. To remove the wheel guard, follow the installation procedure in reverse.

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How do I mount the wheel guard for a tool with a clamp lever type wheel guard?

Loosen the screw, and then pull the lever in the direction of the arrow. Mount the wheel guard with the protrusions on the wheel guard band aligned with the notches on the bearing box. Then rotate the wheel guard to such an angle that it can protect the operator according to work. Fasten the screw. Be sure to tighten the screw securely. The setting angle of the wheel guard can be adjusted with the lever. To remove wheel guard, follow the installation procedure in reverse.

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How do I attach the clip-on cutting wheel guard?

For cutting-off operations, a clip-on cutting wheel guard attachment can be used with the wheel guard (for grinding wheel).

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How do I install a depressed center wheel or flap disc?

Make sure that the mounting part of the inner flange fits into the inner diameter of the depressed center wheel / flap disc perfectly. Mount the inner flange onto the spindle. Make sure to fit the dented part of the inner flange onto the straight part at the bottom of the spindle. Fit the depressed center wheel / flap disc on the inner flange and screw the lock nut onto the spindle. To tighten the lock nut, press the shaft lock firmly so that the spindle cannot revolve, then use the lock nut wrench and securely tighten clockwise. To remove the wheel, follow the installation procedure in reverse.

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How do I install a flex wheel?

Follow the instructions for a depressed center wheel but also use the back up pad over the wheel.

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How do I install or remove an abrasive disc for the 100 mm (4") model?

1. Mount the inner flange onto the spindle.
2. Mount the rubber pad onto the spindle.
3. Fit the disc on the rubber pad and screw the sanding lock nut onto the spindle.
4. Hold the spindle with the shaft lock, and securely tighten the sanding lock nut clockwise with the lock nut wrench. To remove the disc, follow the installation procedure in reverse.

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How do I install or remove an abrasive disc for models other than the 100 mm (4") model?

1. Mount the rubber pad onto the spindle.
2. Fit the disc on the rubber pad and screw the sanding lock nut onto the spindle.
3. Hold the spindle with the shaft lock, and securely tighten the sanding lock nut clockwise with the lock nut wrench. To remove the disc, follow the installation procedure in reverse.

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How do I install or remove an Ezynut?

Mount the inner flange, abrasive wheel, and Ezynut onto the spindle so that the Makita Logo on Ezynut faces outside. Tighten the Ezynut with the abrasive wheel clockwise as far as it turns. To loosen the Ezynut, turn the outside ring of Ezynut counterclockwise.

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How do I loosen the Ezynut if the arrow does not point to the notch?

Insert one pin of the wrench into a hole and turn the Ezynut counterclockwise.

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How do I install a cut-off or diamond wheel?

Follow the instructions for the depressed center wheel. The direction for mounting the lock nut and the inner flange varies by wheel type and thickness.

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How do I install a wire cup brush?

Place the tool upside down to allow easy access to the spindle. Remove any accessories on the spindle. Thread the wire cup brush onto the spindle and tighten with the supplied wrench.

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How do I install a wire wheel brush?

Place the tool upside down to allow easy access to the spindle. Remove any accessories on the spindle. Thread the wire wheel brush onto the spindle and tighten with the wrenches.

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How do I install a hole cutter?

Place the tool upside down to allow easy access to the spindle. Remove any accessories on the spindle. Thread the hole cutter onto the spindle, and tighten it with the supplied wrench.

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How do I install the dust collecting wheel guard for grinding?

Place the tool upside down and install the dust collecting wheel guard. Mount the inner flange onto the spindle. Fit the cup-type diamond wheel on the inner flange and tighten the lock nut onto the spindle. For information on how to install the dust collecting wheel guard, refer to the manual of the dust collecting wheel guard.

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How do I install the dust collecting wheel guard for cutting-off?

For information on how to install the dust collecting wheel guard, refer to the manual of the dust collecting wheel guard.

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How should I operate the tool for grinding and sanding?

Turn the tool on and then apply the wheel or disc to the workpiece. In general, keep the edge of the wheel or disc at an angle of about 15° to the workpiece surface. During the break-in period with a new wheel, do not work the grinder in a forward direction or it may cut into the workpiece. Once the edge of the wheel has been rounded off by use, the wheel may be worked in both forward and backward directions.

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How do I operate the tool with a cup-type diamond wheel?

Keep the tool horizontally and apply the entire cup-type diamond wheel to the workpiece surface.

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How do I operate the tool with an abrasive cut-off wheel?

Do not start the cutting operation in the workpiece. Let the wheel reach full speed and carefully enter into the cut moving the tool forward over the workpiece surface.

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How do I operate the tool with a diamond wheel?

A diamond wheel shall be operated perpendicular to the material being cut.

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How do I operate the tool with a wire cup brush?

Check the operation of the brush by running the tool with no load, ensuring that no one is in front of or in line with the brush. Avoid applying too much pressure which causes over bending of wires when using the wire cup brush, as this may lead to premature breakage.

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How do I operate the tool with a wire wheel brush?

Check the operation of the wire wheel brush by running the tool with no load, ensuring that no one is in front of or in line with the wire wheel brush. Avoid applying too much pressure which causes over bending of wires when using the wire wheel brush, as this may lead to premature breakage.

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How do I operate the tool with a hole cutter?

Check the operation of the hole cutter by running the tool with no load, ensuring that no one is in front of the hole cutter. Do not tilt the tool during operation, as this may lead to premature breakage.

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What maintenance should I perform on the tool?

The tool and its air vents have to be kept clean. Regularly clean the tool’s air vents or whenever the vents start to become obstructed. Remove the dust cover from the inhalation vent and clean it for smooth air circulation. Clean out the dust cover when it is clogged with dust or foreign matters. Continuing operation with a clogged dust cover may damage the tool.

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