Operation - Makita GN900 Instruction Manual

Fig.2
To insert the battery cartridge, hold it so that the
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battery cartridge front shape fits to that of the battery
installment opening and slip it into place. Always
insert it all the way until it locks in place with a little
click. If not, it may accidentally fall out of the tool,
causing injury to you or someone around you.
Do not use force when inserting the battery
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cartridge. If the cartridge does not slide in easily, it
is not being inserted correctly.
Fuel cell
Attaching the metering valve to the fuel cell
Fig.3
Detach the cap (in case the metering valve is provided
with the cap).
Fig.4
Push in the front edge.
Fig.5
Push in the rear edge until it seats.
Inserting the fuel cell
Fig.6
Push up and pull the fuel cover to open.
Fig.7
Insert the fuel cell directing the jet nozzle of the metering
valve toward the adaptor.
Fig.8
Insert the jet nozzle into the small hole of the adapter
properly.
Fig.9
Put the fuel cover over the metering valve and push it
down to latch.
Adjusting the nailing depth
CAUTION:
Remove the fuel cell, the battery cartridge and
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nails before adjusting the depth of nailing.
Fig.10
With the hex wrench, loosen two screws and move the
contact element.
Retighten screws firmly.
Indication lamp
Color of the indication lamp means the followings.
Blinking green: Normal status
Blinking red: Need to recharge the battery cartridge
Lighting-up-red: Recharge
Nailing cannot be performed due to no remaining battery
capacity.
Blinking orange after blinking green and red
alternately: Fault detection is running. Remove and
reinsert the battery cartridge to reset. If fault detection is
running again, it is malfunction condition.
the battery cartridge.
Installing the hook
Fig.11
The hook is convenient for hanging the tool temporarily.
The hook can be set in two positions according to where
the tool will be hung.
To change the hook position, contract it at its foot by
pushing in from both sides and shift to another position.
ASSEMBLY
CAUTION:
Always remove the fuel cell and the battery
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cartridge.
Loading the nailer
Fig.12
Insert a strip of nails into the slit in the rear of the
magazine.
Fig.13
Pull the Pusher Lever to the rear of the Magazine and
return it to the end of the strip gently.
Fig.14
Load nails so that they get parallel to the driver guide.
Removing nails
Fig.15
Pull the pusher lever and push the pusher button to
release the nail supporter, and then return the pusher
lever to the top pushing the pusher button.
Slide the nails toward the rear of the magazine and
remove them out.

OPERATION

WARNING:
Do not touch around the exhaust vent. The
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surface will be so hot during or after an operation.
Touching around the exhaust vent may cause
burns or injuries.
CAUTION:
Make sure all safety systems are in working order
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before operation.
Fig.16
1. To drive a nail, place the contact element against
the workpiece.
The fan motor is activated, fuel gas is injected into
combustion chamber and mixed with air by the fan.
Fig.17
2. Hold the contact element pressing firmly and pull
the trigger.
Fuel gas is combusted and the nail is driven.
3. Further driving can be initiated only after both the
contact element and the trigger are released.
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