GMC GMBL18CH Manuel D'utilisation page 9

Notes about battery charging:
• The Battery (9) should be charged at ambient temperatures between 10 and 40°C
(ideally around 20°C)
• After charging, allow 15 minutes for the battery to cool before use
• Ensure that the charger is disconnected from the mains supply after use, and is stored
correctly
• DO NOT leave batteries on charge for extended periods and NEVER store batteries on
charge
• The Battery Charger (15) monitors battery temperature and voltage while charging.
Remove the Battery once charging has been completed to maximise charge cycles of
the battery and not waste power
• Batteries can become faulty over time, individual cells in the battery can fail and the
battery could short. The charger will not charge faulty batteries. Use another battery,
if possible, to check correct functionality of the charger and purchase a replacement
battery if a faulty battery is indicated
• DO NOT store Lithium-Ion battery packs in a discharged state long term. This can
damage the Lithium-Ion cells. For long-term storage, store batteries in a high charge
state disconnected from the power tool
• The capacity of batteries will reduce over time. After 100 charge cycles, the battery's
operation time and the maximum torque performance of the drill will slightly reduce.
This decline will continue until the battery has minimal capacity after 500 charge cycles.
This is normal and not a fault with the battery pack
Fitting a drill or driver bit
WARNING: DO NOT fit any attachment with a maximum speed lower than the no load
speed of the machine.
1. Rotate the Keyless Chuck (1) collar anti-clockwise (as seen from facing the chuck
opening) and insert the bit into the chuck
2. Rotate the Keyless Chuck collar clockwise to secure the drill bit
Note: DO NOT run the tool whilst tightening or releasing the chuck. Ideally select the locked
middle position of the Forward/Reverse Switch (6).
3. When the bit is held tightly, test that it is positioned centrally by running the tool. The
bit should rotate smoothly without uneven rotation. If the bit is not central, release the
chuck, reposition the bit and retighten the chuck
Direction control
• The rotation direction can be set using the Forward/Reverse Switch (6)
• To let the chuck rotate clockwise, push the Forward/Reverse Switch to the left
• To let the chuck rotate anti-clockwise, push the Forward/Reverse Switch to the right
• When the Forward/Reverse Switch is in the central position, the tool is locked
WARNING: DO NOT attempt to move the Forward/Reverse Switch when the tool is running
Speed control
• This drill driver features a 2-speed gearbox:
• 1st gear range: 0 – 500min -1
• 2nd gear range: 0 – 1800min -1
• Use the Gear Selector (4) to set the gear: forward for first gear, back for second gear
Note: The first gear would be used normally for driving screws, for example, and offers
higher torque and superior control at low rpm. The second gear would normally be used
exclusively for drilling.
Drill mode selection
• For normal drilling, select the correct gear which is normally the high speed 2nd gear,
then rotate the Mode Selector (3) so the drill symbol
the tool body
• For masonry drilling, select the correct gear which is normally the high speed 2nd gear,
then rotate the Mode Selector so the hammer symbol
on the tool body
Torque control
• This drill driver is fitted with torque control, which limits the torque output of the drill,
enabling screws to be driven without the risk of damage
• There are 20 torque settings and two drill settings. The lower the number, the lower
the torque
• To set the torque clutch, select the first gear and rotate the Mode Selector (3) so the
drive symbol is aligned with the indicator on the tool body
• Rotate the Torque Selector (2) until the setting you require is aligned with the drive
symbol
• Check that the torque setting is correct by practising first on a piece of scrap material
WARNING: The drill can be fitted with a drive adaptor for use with driving nuts and bolts. Do
not attempt to use this tool in the drill position when doing so. Use the 20 torque settings
and the first gear to allow the torque clutch to protect the tool from excessive load. The use
of a spanner to loosen or tighten a nut/bolt is recommended. This allows the tool to speed
up the operation without risk of damage when high torque is required at the beginning or
end of the operation.
Operation
WARNING: Always use adequate protective equipment, including eye protection,
respiratory and hearing protection, when working with this tool.
Switching on and off
• To start the tool, squeeze the Speed Control Trigger Switch (13). The Work Light LED (14)
will illuminate
• Further pressure on the Speed Control Trigger Switch will increase the running speed
of the tool
• Release the Speed Control Trigger Switch to stop the tool
Note: It is possible the drill may switch off during heavy use due to thermal protection of
the battery and internal components. This may prevent the tool being used again for a short
period of time and does not represent a fault condition.
Drilling guidance
• Use sharp drill bits and ensure that drill bits are suitable for the material being drilled
• Never exceed the maximum drilling capacities listed in 'Specification'
• Begin drilling at slow speeds by partially squeezing the Speed Control Trigger Switch
• Reduce pressure on the Speed Control Trigger Switch when the drill bit is about to break
through to the other side of material
• To avoid splintering on breakthrough, either clamp a piece of scrap wood to the back
of the workpiece or continue the hole from the back of the wood when the drill bit first
breaks through
Drilling metal
• Support thin material with a piece of scrap wood
• Mark the intended hole position using a hammer and centre punch
• Use only HSS (high speed steel) drill bits or others recommended for drilling into metal
9
is aligned with the indicator on
is aligned with the indicator
GB