Bosch Professional GNH 18V-64 Original Instructions Manual page 22

22 | English
– Guiding along templates manufactured of hard material,
e.g. steel,
– Dropping on or sliding over the floor,
– Using as a hammer,
– Applying any kind of force.
Make sure to check whatever is below or behind your work-
piece. Do not shoot nails into walls, ceilings or floors, when
persons are behind them. The nails can burst through the
workpiece and injure someone.
Do not shoot a nail onto an already driven-in one. This could
cause the nail to deform, the nails could become jammed or
the power tool could move in an uncontrolled manner.
When the power tool is used under cold ambient conditions,
the first nails will be driven in slower than usual. Once the
power tool has warmed up during working, normal operating
speed will be regained.
Avoid pulling the trigger when the magazine is empty to min-
imise wear on the firing pin.
For longer work breaks or after finishing work, switch off the
power tool, remove the battery and empty the magazine if
possible.
Emptying the magazine (see figures C1–C2)
– With the nail pusher (13) pressed, pull the magazine
slider (14) backwards until the last nail is free; then care-
fully guide the magazine slider forwards to the beginning
of the magazine (12).
Note: Do not let the magazine slider snap back without guid-
ing it. This could damage the magazine slider and there is a
risk of getting your fingers caught.
– Turn the power tool so that the nails in the magazine slide
back to the magazine spring (17).
– Press the magazine spring down and allow the nails to
slide past the nail pusher (14) out of the magazine (12).
Adjusting the depth stop (see figure D)
The driving depth of the nails can be set with the
thumbwheel (4).
– Empty the magazine (12).
– Nails are driven in too deep: To reduce
the driving depth, turn the
thumbwheel (4) anticlockwise.
– Nails are not driven in deep enough: To
increase the driving depth, turn the
thumbwheel (4) clockwise.
– Refill the magazine.
– Test the new driving depth on a test workpiece.
Repeat the worksteps as required.
Clearing jams (see figures E1–E2)
Single nails can become jammed in the shot duct. If this
should occur frequently, please contact an authorised Bosch
after-sales service centre.
1 609 92A 81N | (01.08.2022)
Note: If the driver blade does not return after clearing a jam,
please contact an authorised Bosch after-sales service
centre.
– Release the trigger (5).
– Switch the power tool off and remove the battery (7).
– Empty the magazine (12).
– Press the clamping lever (3) down so that the shot duct
opens.
– Remove the jammed nail. Use a pair of pliers for this, if re-
quired.
– Close the shot duct, hang the clip of the clamping
lever (3) into the hooks on the shot duct and then push
the clamping lever up again.
– Refill the magazine.
Changing the workpiece protector (see figure F)
The workpiece protector (1) at the end of the discharge
lock-off (2) protects the workpiece until the power tool is
correctly placed for the discharging procedure. The work-
piece protector can be removed and replaced
– Release the trigger (5).
– Switch the power tool off and remove the battery (7).
– Empty the magazine (12).
– Remove the workpiece protector from the discharge lock-
off.
– Push the new workpiece protector with the open end over
the discharge lock-off.
Note: A spare workpiece protector can be stored on top of
the magazine (12). For this, push the workpiece protector
into the storage compartment (10).
Transport and Storage
For transport, switch off the power tool; especially when us-
ing ladders or moving in an unusual stance or posture.
At the workplace, carry the power tool only by the handle (8)
and with the trigger (5) released.
Always store the power tool disconnected from the battery
and in a dry and warm location.
When not using the power tool for an extended period of
time, apply a fine oil coating to steel parts. This prevents the
formation of rust.
Maintenance and Service
Maintenance and Cleaning
Remove the battery from the power tool before carry-
u
ing out work on the power tool (e.g. maintenance,
changing tool, etc.). The battery should also be re-
moved for transport and storage. There is risk of injury
from unintentionally pressing the on/off switch.
To ensure safe and efficient operation, always keep
u
the power tool and the ventilation slots clean.
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