6
GB
Operating Instructions
IMPORTANT:
• Before first use and after every 6 hours (approx.) of use, fill the gearbox cavity
with gearbox grease. A Pot of Grease (14) is supplied for initial use. See ‘Gearbox
Maintenance’ for application guidance
• Always check that there is sufficient grease in the gearbox cavity before using the drill
Operating the Chuck
• The SDS Plus system allows the bit to move slightly within the chuck when inserted
correctly. The SDS Plus drill or chisel bit does not lock in position like a conventional
chuck
1. To fit a bit to the machine, first grease the tail end of the bit. Pull back the Chuck
Protective Cover (2), and hold. Push and rotate the bit into the SDS Plus Chuck (1), as
far as it will go. Release the chuck protective cover
2. 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 the bit is held securely
3. To remove a bit from the chuck, pull the chuck protective cover back, and hold. The
bit can then be removed from the drill
Note
: The Dust Guard (10) should be fitted to the drill or chisel bit to prevent debris and
dust entering the chuck. This is especially important when the drill is used at a raised angle
when working on walls or ceilings. For larger drill bits it may need to be fitted before the
bit is fitted in the chuck.
Selecting The Required Function
Hammer Selection
• The drill can be used in either hammer drill mode (for masonry work), or conventional
rotary drill mode (for wood, metal etc)
• To select hammer drilling mode, rotate the Hammer Selection Switch (6) to the left
• To select rotary drilling mode, rotate the hammer selection switch to the right
• Do not attempt to move the hammer selection switch whilst the drill is running
• Do not attempt to operate the drill with the hammer selection switch in a mid position
Rotation Selection
• The drill can be used in either rotation mode (for drilling), or roto-stop mode (for
chiselling)
• To select rotation mode, twist the Rotation Selection Switch (3) to the left
• To select roto-stop mode, twist the rotation selection switch to the right
• Do not attempt to move the rotation selection switch whilst the drill is running
• Do not attempt to operate the drill with the rotation selection switch in a mid position
Speed control
• The speed of the drill can be varied between 0 and 850rpm. The speed is adjusted by
rotating the Speed Control Dial (7)
Depth gauge
1. To fit the depth gauge, loosen the Auxiliary Handle (15) by turning the handle grip
anti-clockwise
2. Lift the auxiliary handle up to a horizontal position
3. Insert the Depth Gauge (11) into the Depth Gauge Mounting (16) in the auxiliary
handle
4. Rotate the handle grip clockwise to re-tighten. This will secure the depth gauge and
the auxiliary handle position
Auxiliary handle
• The Auxiliary Handle (15) should always be used when operating the drill
• Always hold the drill firmly using both hands
• The auxiliary handle position can be adjusted as required to suit the task
On/Off Trigger Switch
• To start the drill, squeeze the On/Off Trigger Switch (5)
• To stop the drill, release the on/off trigger switch
• The maximum speed of the drill is governed by the Variable Speed Control (7). Take time
adjusting to make sure the maximum speed is correctly set before use
CAUTION
: The drill is not designed to be permanently switched on and there is no ‘lock on
feature’. Do not attempt to improvise such a feature.
Drilling Concrete
• Using hammer drill mode and rotation mode, apply pressure to the rear of the drill, in
line with the drill bit
• For efficient drilling, it is advisable to use TCT (tungsten carbide tipped) drill bits. Ensure
that drill bit size is within the maximum capacity of the drill
• If debris blocks the drill hole, reduce the pressure, run the drill slowly and remove the
bit from the hole. Repeat until the hole is cleared
Chiselling
• Using hammer drill mode and roto-stop mode, apply pressure to the rear of the drill, in
line with the chisel
• Be aware that when chiselling, there is a high risk of chips, and other waste, being
ejected from the work
CAUTION
: Applying excess pressure does not result in faster or more efficient drilling. If the
pressure applied to the drill has a noticeable effect on the speed of the drill then reduce the
pressure. Overloading the drill will reduce its service life.
• As the drill bit penetrates the material being drilled, it may 'catch' or 'snag'. This can
cause the machine to suddenly 'kick', to prevent any possibility of injury always hold the
drill securely, use the side handle, and use sharp drill bits
Safety Clutch
• In the event that a drill bit or core drill becomes locked in the workpiece while operating
and cannot rotate, or is forced to operate at a very low rotational speed, the safety
clutch will dis-engage the drive.
• In this event quickly release the trigger to help prevent injury, and to reduce wear on the
safety clutch mechanism.
• After the safety clutch has disengaged the drive, completely re-check that all equipment
is correctly set up and the drill bit or core drill is not badly worn or damaged. It may
be necessary to work at a slower rate. In some instances you may find the drill is not
suitable, especially if using large core drills.
WARNING
: Do not rely on the safety clutch. Always configure your equipment for safe use
so that the safety clutch will not operate.
Drilling wood and metal
Note
: A conventional 13mm (1/2”) keyed chuck is available for this product, if not supplied.
This is available in the Silverline 13mm Chuck & SDS Plus Adaptor Kit (292703)
1. Screw the SDS Plus Arbor (18) to the Keyed Chuck (17)
2. Insert the chuck assembly into the SDS Plus Chuck (1)
3. Insert a conventional drill bit for either wood or metal into the chuck and tighten the
chuck with the Chuck Key (19). See specification for maximum drilling capacity in
wood and metal
CAUTION
: The keyed chuck is not for masonry bits and will be damaged if used in
hammer mode. Always use SDS Plus masonry bits fitted directly into the SDS Plus chuck
for masonry use.
Drilling wood
• Use rotary drill mode only
• Ensure that drill bits are suitable for wood, and are within the maximum capacity of
this drill
Drilling metal
• Use rotary drill mode only
• To ensure accuracy, mark the intended hole position using a hammer and centre punch
• Ensure that drill bits are suitable for the grade of metal being drilled, and are within the
maximum capacity of the drill
• To ensure efficient cutting, and prolong drill bit life, use a suitable lubricant/cutting fluid
Maintenance
WARNING:
Always remove the plug from the mains power supply before carrying out any
maintenance/cleaning.
Gearbox Maintenance
After every 6 hours of use (approx.), the gearbox must be re-greased
1. Use the Gearbox Pin Spanner (13) to unscrew the Gearbox Cover (4)
2. Use a spatula or similar instrument to apply grease into the gearbox cavity until it is
full
3. Be careful not to scratch or otherwise damage the mechanism
4. Replace the Gearbox Cover (4)
NOTE:
• A Pot of Grease (14) is supplied for the first few re-greases but additional lubrication will
be required. When purchasing, select a general purpose lithium-based grease
• Do not over-tighten the gearbox cover or overfill the gearbox with grease
Cleaning
• Keep your machine clean at all times. Dirt and dust will cause internal parts to wear
quickly, shortening the machine’s service life. Clean the body of your machine with a
soft brush or dry cloth. If available, use clean, dry, compressed air to blow through the
ventilation holes
Brushes
• Over time the carbon brushes inside the motor may become worn
• Excessively worn brushes may cause loss of power, intermittent failure, or visible
sparking
• To replace the brushes, remove the Brush Access Cover (8) and the cover on the
opposite side. The worn brushes can then be withdrawn, and replaced with new. Always
replace worn brushes in pairs. Refit the brush access covers. Alternatively, have the
machine serviced at an authorised service centre
Disposal
Always adhere to national regulations when disposing of power tools that are no longer
functional and are not viable for repair.
• Do not dispose of power tools, or other waste electrical and electronic equipment
(WEEE), with household waste
• Contact your local waste disposal authority for information on the correct way to dispose
of power tools
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