Charging The Battery; Operating Instructions; Trigger Switch; Side Handle - GMC GMCSDS18 Original Instructions Manual

Charging the battery

WARNING: Failure to follow the correct procedure when charging batteries will result in
permanent damage.
Note: Normal charging time is approximately 1 hour for a recently discharged 3.0Ah capacity
battery. However, if the Battery (11) has been left in a discharged state for some time, it may
take additional time to charge.
1. Slide a fully or partially discharged Battery on to the Battery Charger (18)
Note: Make sure the Battery and Battery Charger are lined up correctly. If the Battery does
not slide on to the Battery Charger easily, don't force it. Instead, remove the Battery, check
the top of Battery and the Battery Charger slot are clean and undamaged and that the
contacts are not bent.
2. Once charging commences, the Red LED (17) will illuminate
3. When the Battery is fully charged, the Green LED (19) will be illuminated
Battery Charge Level: The Battery has a built-in Battery Charge Indicator (9) (Fig. I).
Pressing on the button to the right will indicate the charge level. The right LED indicates a
high charge level and the left a low charge level that will mean the battery pack will require
charging soon.
IMPORTANT: When a low charge level is indicated, the tool may stop operating while in
use. In some instances this may be dangerous. Always ensure the battery pack has a good
charge level.
Notes about battery charging:
• The battery 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 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 driver 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

Side handle

• The Auxiliary Handle (1) should always be used when drilling
• The Auxiliary Handle angle can be adjusted to best suit the work to be performed
• To adjust the Auxiliary Handle:
1. Rotate the grip anti-clockwise. This will loosen the handle assembly
2. Move the side handle to the required position
3. Secure in position by rotating the grip clockwise

Depth stop

1. Rotate the grip anti-clockwise. This will loosen the handle assembly
2. Move the Depth Stop (16) to the required position
3. Secure in position by rotating the grip clockwise
Operating the chuck
• This drill has a chuck designed for SDS Plus drill bits
• The SDS Plus system allows bits to be inserted with a simple push-it action
• Always grease the tail end of SDS bits. Bits should be freshly greased and free from dirt
and dust before use
• To insert a drill bit:
1. Pull back the Chuck Collar (14) and hold
2. Insert SDS Plus drill bit fully into the Chuck (15). Use a twisting motion to line up the
grooves in the accessory
3. Release the Chuck Collar
4. The bit should now be locked into the machine. Check by pulling the bit; if the bit can be
removed, repeat the above procedure until secure
• To remove a bit from the Chuck, pull the Chuck Collar back, and pull irmly on the drill bit
WARNING: Never it any attachment with a maximum speed lower than the no load speed
of the machine
Hammer selection
• The drill can be used in either hammer drill mode (for masonry work), or conventional
rotary drill mode (for wood, metal, plastics etc) with the purchase of a standard chuck to
SDS Plus adaptor
• To select hammer drilling mode, depress the Mode Selector Release (3) on the Mode
Selector (2) and align the Mode Selector with the
• To select rotary drilling mode, depress the button on the Mode Selector Release on the
Mode Selector and align the Mode Selector with the symbol
• Do not attempt to move the Mode Selector whilst the drill is running

Operating Instructions

IMPORTANT: Put on all safety equipment required before you operate this drill

Trigger switch

• Always hold the drill irmly using both hands
• To start the drill, squeeze the Trigger (8)
• To stop the drill, release the Trigger
Selecting forward or reverse rotation
• The direction of the drill can be changed using the Forward/Reverse Switch (7)
• To run the drill in a clockwise direction, position the Forward/Reverse Switch on the left,
adjacent to the symbol
• To run the drill in an anti-clockwise direction, position the Forward/Reverse Switch on the
right, adjacent to the symbol
• Do not attempt to move the Forward/Reverse Switch whilst the drill is running
• Do not attempt to run the drill with the Forward/Reverse Switch in mid position
Speed Control
• The speed of the drill is controlled by the pressure applied to the Trigger (8). The further
the Trigger is depressed the higher the speed

Gear selection

• Select gear 1 on the Gear Switch (4) for the low speed, high torque gear. Suitable for low
speed drilling and driving screws and fasteners
• Select gear 2 on the Gear Switch for the high speed, low torque gear. Suitable only for
high speed drilling
NOTE: ALWAYS read the documentation provided with drill bits and accessories for
the recommended or maximum speed setting and use the most appropriate gear. See 'Speciication' for the maximum no load speed of each gear.
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