Unpacking; Before Use; Operating The Chuck - GMC SDSHD550 Manual Del Usuario

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Unpacking

Carefully unpack and inspect your tool. Familiarise yourself
with all its features and functions.
Ensure that all parts of the tool are present and in good
condition. If any parts are missing or damaged, have such
parts replaced before attempting to use this tool.

Before Use

GB
WARNING: Always disconnect the machine from the mains
power supply before making adjustments or changing
accessories.
Power indicator light
• The Power Indicator Light (9) is illuminated when power
is available to the tool
Side handle
• The Side Handle (10) should always be used when
drilling
• The side handle can be adjusted to best suit the work to
be performed
• To adjust the side handle:
- Rotate the grip anticlockwise. This will loosen the
handle assembly
- Move the side handle to the required position
- Secure in position by rotating the grip clockwise
Depth stop
• Press the button on top of the Depth Stop Collar (3) to
allow movement backwards and forwards of the depth
stop
• Release the button to lock the depth stop at chosen
depth position

Operating the chuck

• This drill has a chuck designed for SDS Plus drill bits
• The SDS system allows the bit to move within the Chuck
(1). This means that it is unnecessary to tighten the
chuck around the bit
• Always grease the tail end of SDS bits; use pot of
grease supplied. Bits should be freshly greased and free
from dirt and dust before use
• To insert a drill bit:
- Pull back the Chuck Collar (2) and hold
- Insert SDS Plus drill bit fully into the chuck. Use a
twisting motion to line up the grooves in the
accessory
- Release the chuck collar
- 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 firmly on the drill bit
• Be aware that it may not be possible to drill holes to
the same standards of accuracy as with a conventional
power drill. This is due to the small amount of 'slack'
required in the SDS chuck to allow tools to move easily
WARNING: Never fit any attachment with a maximum
speed lower than the no load speed of the machine
Using the dust protector cap
• The dust cap can be used to give added protection
against dust and debris entering the SDS chuck
1. Place the cap over the shank of the bit and slide it
forward until it rests against the shoulder of the bit
2. Insert the bit into the SDS chuck as normal
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)
• To select hammer drilling mode, depress the button on
the Hammer Action Selector (4) and align the selector
with the
symbol
• To select rotary drilling mode, depress the button on the
Hammer Action Selector (4) and align the selector with
the
symbol
8
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