Drilling Concrete; Drilling Wood; Drilling Metal; Maintenance - GMC SDSMHD1500 Manual Del Usaurio

Drilling Concrete

• Using hammer drill 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 (see specifications)
• Do not apply too much pressure if debris blocks the drill
hole. Run the drill slowly, and remove the bit from the
hole. Repeat until hole is cleared

Drilling Wood

• Use rotary drill mode only
• Ensure that drill bits are suitable for wood, and are within
the maximum capacity of this drill (see specifications)

Drilling Metal

• To ensure accuracy, mark the intended hole position
using a hammer and centre punch
• Use rotary drill mode only
• Ensure that drill bits are suitable for the grade of metal
being drilled, and are within the maximum capacity of the
drill (see specifications)
• To ensure efficient cutting, and prolong drill bit life, use a
suitable lubricant or cutting fluid
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
• Always ensure that material is secure. If appropriate use
a vice or clamp to hold the work, always keep two hands
on the drill

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 wrench to unscrew the Gearbox
Cover (5)
2. Use a spatula or similar instrument to apply general
machinery grease into the gearbox cavity until it is full. A
pot of grease is supplied with the tool
3. Be careful not to scratch or otherwise damage the
mechanism
4. Replace the Gearbox Cover (5)
NOTE: Do not over-tighten the gearbox cover or overfill the
gearbox with grease.
• If you run out of grease, or are not sure how to change
the grease, take your product to an authorised service
centre for advice

Cleaning

• Keep your machine clean at all times. Dirt and dust will
cause internal parts to wear quickly, and shorten 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
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