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Makita GN900 User Manual

Makita GN900
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1
ENGLISH (Original instructions)
INSTRUCTION MANUAL
IMPORTANT: Read Before Using.
Cordless Clipped Head Framing
Nailer
GN900
009440

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Makita GN900 Specifications

General IconGeneral
BrandMakita
ModelGN900
CategoryNail Gun
LanguageEnglish

Summary

SPECIFICATIONS

Intended use

Describes the primary applications and purposes of the cordless framing nailer.

Noise

Provides information on the A-weighted noise levels determined for the tool.

Vibration

Details the vibration emission values measured for the tool according to EN792.

Work area safety

Keep work area clean and well lit.

Ensures safety by maintaining a clean and well-lit workspace to prevent accidents.

Do not operate in explosive atmospheres.

Avoids ignition risks from sparks in environments with flammable liquids, gases, or dust.

Keep children and bystanders away.

Maintains operator control by keeping children and bystanders at a safe distance during operation.

Electrical safety

Match power tool plugs to outlets.

Ensures proper electrical connection and reduces shock risk by using matching plugs and outlets.

Avoid body contact with earthed surfaces.

Minimizes electric shock risk by preventing contact with grounded surfaces like pipes or radiators.

Do not expose to rain or wet conditions.

Prevents electric shock risk by keeping power tools dry and away from water or wet environments.

Do not abuse the cord.

Prevents electric shock and injury by protecting the cord from damage, heat, oil, and moving parts.

Use outdoor extension cords.

Reduces electric shock risk when operating outdoors by using suitable extension cords.

Use GFCI in damp locations.

Minimizes electric shock risk in damp locations by using a ground fault circuit interrupter.

Personal safety

Stay alert and use common sense.

Ensures operator safety by remaining attentive and using good judgment while operating the tool.

Use personal protective equipment.

Protects against injury by always wearing safety glasses and other appropriate PPE.

Power tool use and care

Prevent unintentional starting.

Avoids accidental starts by ensuring the switch is off before connecting power or battery.

Remove adjusting keys/wrenches.

Prevents injury by removing any attached tools before turning the power tool on.

Do not overreach; maintain balance.

Ensures better control and safety by maintaining proper footing and balance at all times.

Dress properly; avoid loose clothing.

Prevents entanglement with moving parts by wearing appropriate clothing and securing hair.

Connect dust extraction facilities.

Reduces dust-related hazards by ensuring dust extraction is connected and used properly.

Use the correct power tool for application.

Ensures efficiency and safety by using the tool for its intended purpose and design.

Do not use if switch is faulty.

Ensures safety by not using tools with a faulty on/off switch, requiring repair.

Disconnect before adjustments/storage.

Prevents accidental starting by disconnecting power/battery before maintenance or storage.

Store idle tools out of reach.

Protects children and untrained users by storing tools securely and away from unauthorized access.

Maintain power tools; check for damage.

Ensures safe operation by checking for damage, misalignment, or binding before use.

Keep cutting tools sharp and clean.

Facilitates control and prevents binding by using sharp, clean cutting tools.

Use tool and accessories per instructions.

Ensures safe operation by following instructions for tool, accessories, and bits.

Battery tool use and care

Recharge with specified charger.

Prevents fire risk by using only the manufacturer-specified charger for the battery pack.

Use only designated battery packs.

Prevents injury and fire by using only battery packs specifically designed for the tool.

Keep battery away from metal objects.

Prevents shorting, burns, or fire by keeping battery terminals away from conductive materials.

Avoid contact with ejected battery liquid.

Protects against irritation or burns by avoiding contact with battery electrolyte, seeking medical help if needed.

Service

Have tool serviced by qualified person.

Ensures safety and reliability by using qualified personnel and identical replacement parts for service.

Follow instructions for lubrication.

Maintains tool performance and safety by adhering to lubrication and accessory change instructions.

Keep handles dry, clean, and free from oil.

Ensures a secure grip and safe operation by keeping handles dry and clean.

IMPORTANT SAFETY INSTRUCTIONS

Read all instructions.

Ensures user understanding of safety precautions and proper operation by reading the entire manual.

General Tool Handling Guidelines

Always assume the tool contains fasteners.

Promotes safety by always treating the tool as if it is loaded with fasteners.

Do not point the tool at yourself or others.

Prevents accidental firing and injury by never pointing the tool at people or oneself.

Activate tool only against workpiece.

Ensures safe operation by activating the tool only when it is firmly placed against the workpiece.

Respect the tool; no horseplay.

Maintains a safe environment by treating the tool as a working implement and avoiding misuse.

Do not hold trigger with finger on it.

Prevents accidental firing by not carrying or holding the tool with a finger on the trigger.

Do not load with controls activated.

Ensures safety by not loading fasteners when any operating controls are activated.

Use only specified power source.

Ensures safety and performance by using only the power source specified in the instructions.

Do not use improperly functioning tool.

Ensures safety by not using any tool that is not functioning correctly.

Avoid use near volatile materials.

Prevents fire and explosion risks by not using the tool near flammable materials like gasoline or paint.

Ensure area is illuminated and clear.

Promotes safe operations by ensuring the work area is well-lit and free of obstructions.

Maintain good footing and balance.

Ensures stability and control, especially in high locations, by maintaining good footing and balance.

Keep bystanders away.

Ensures safety by limiting proximity to work area to only those involved in the task.

Comply with local noise regulations.

Adheres to local regulations by keeping noise levels within prescribed limits.

Do not play with contact element.

Ensures safety by not tampering with the contact element which prevents accidental discharge.

Never attempt to fasten the trigger.

Prevents accidental firing and serious injury by never securing the trigger in the ON position.

Check overall condition; tighten screws.

Ensures safe operation by checking tool condition and tightening loose screws before use.

Test safety systems are working.

Verifies proper safety function by testing that the tool operates only when trigger and contact arm are engaged.

Check walls, ceilings, floors carefully.

Prevents hazards like shock or explosion by carefully checking work surfaces for wires or pipes.

Use only specified nails.

Ensures proper function and safety by using only the nails specified in the manual.

Never use on scaffoldings, ladders.

Avoids hazards by not using the tool for tasks involving scaffoldings, ladders, or similar constructions.

Make sure no one is nearby.

Ensures safety by checking that no one is in the vicinity before nailing.

Watch footing in high locations.

Prevents falls and injuries by watching footing and balance when working at heights.

Nail from top to bottom on perpendicular surfaces.

Improves safety and control when nailing against vertical surfaces by working from top to bottom.

IMPORTANT SAFETY INSTRUCTIONS FOR BATTERY CARTRIDGE

Read battery charger and product instructions.

Ensures safe battery usage by reading all instructions and cautionary markings for chargers and products.

Do not disassemble battery cartridge.

Prevents hazards like overheating, burns, or explosion by not disassembling the battery cartridge.

Stop operation if time is excessively shorter.

Prevents risks of overheating or explosion by immediately stopping use if battery life is significantly reduced.

Rinse eyes if electrolyte contacts.

Protects eyesight by rinsing eyes with clear water and seeking medical attention if battery electrolyte is contacted.

Do not short the battery cartridge.

Prevents burns or fire by avoiding shorting battery terminals with conductive materials or metal objects.

Do not store battery in high temperature locations.

Prevents potential hazards like explosion by not storing batteries in locations exceeding 50°C (122°F).

Do not incinerate battery cartridge.

Prevents explosion risk by never disposing of battery cartridges in a fire.

Be careful not to drop or strike battery.

Ensures battery integrity and safety by avoiding dropping or striking the battery.

Do not use a damaged battery.

Prevents potential hazards by not using any battery that appears damaged.

Tips for maintaining maximum battery life

Charge before completely discharged.

Maximizes battery lifespan by charging the cartridge before it is fully depleted.

Stop operation when tool power lessens.

Preserves battery health by stopping operation and charging when tool power noticeably decreases.

Never recharge a fully charged battery.

Prevents reduced service life by not recharging a battery that is already fully charged.

Charge at room temperature.

Ensures optimal battery performance and longevity by charging within the recommended temperature range.

Let hot battery cool before charging.

Prevents potential damage and maintains battery life by allowing a hot battery cartridge to cool down before charging.

Overview of the nailer

FUNCTIONAL DESCRIPTION

Installing or removing battery cartridge

Provides instructions on how to safely install and remove the battery cartridge from the tool.

Attaching the metering valve to the fuel cell

Details the process of attaching the metering valve to the fuel cell correctly.

Fuel cell

Inserting the fuel cell

Guides the user on the correct procedure for inserting the fuel cell into the nailer.

Adjusting the nailing depth

Loosen screws to adjust depth.

Explains how to loosen screws to modify the nailing depth setting.

Indication lamp

Meaning of lamp colors and patterns.

Explains the meaning of different colors and patterns of the indication lamp.

Installing the hook

The hook is convenient for hanging.

Describes the utility and positioning options for the tool's hanging hook.

ASSEMBLY

Loading the nailer

Provides instructions on how to load nails into the magazine of the nailer.

Removing nails

Explains the procedure for safely removing nails from the nailer.

OPERATION

To drive a nail, place the contact element against the workpiece.

Details the initial step for driving a nail by positioning the contact element correctly.

OPERATION

Hold the contact element pressing firmly and pull the trigger.

Explains the action required to drive a nail: pressing the contact element and pulling the trigger.

Anti dry fire mechanism

Describes the mechanism that prevents the tool from firing when nails are low.

Jammed nailer

Provides steps to follow if the nailer becomes jammed.

Remove the fuel cell, the battery cartridge and nails.

Specifies the essential first step for clearing a jam: removing power sources and fasteners.

Loosen the magazine mounting screws.

Details how to loosen screws to address a jammed nailer.

Pull the handle/magazine away from the nose.

Explains how to separate parts of the tool to clear a jam.

Reload a strip of nails.

Describes the final step after clearing a jam: reloading the nailer with fasteners.

MAINTENANCE

Cleaning the air filter

Provides instructions for cleaning the air filter to maintain tool performance.

Maintenance after daily work: Before leaving the work site

Lists tasks to perform before storing or transporting the tool after daily use.

Maintenance after daily work: When you get home

Details post-work tasks upon returning home, including charging and cleaning.

OPTIONAL ACCESSORIES

Nails

Lists nails as an optional accessory for the nailer.

Safety goggles

Lists safety goggles as a recommended accessory.

Fuel cell

Lists fuel cells as an optional accessory.

Cleaning kit

Lists a cleaning kit as a recommended accessory.

Various type of Makita genuine batteries and chargers

Lists batteries and chargers as optional accessories.

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