Neilsen CT4542, Original Instructions Manual, Page: 14 / 16

MAINTENANCE
• After each use, blow air through the multi-function sharpener housing to ensure it is free
from all dust particles which may build up. Build up of dust particles may cause the
multi-function sharpener to overheat and fail.
• If the enclosure of the multi-function sharpener requires cleaning, do not use solvents but a
moist soft cloth only. Never let any liquid get inside the multi-function sharpener; never
immerse any part of the multi-function sharpener into a liquid.
TROUBLESHOOTING
Sparking visible through the housing air vents
A small amount of sparking may be visible through the housing vents.
This is normal and does not indicate a problem.
The tip of my drill bit is turning blue
This is because the drill bit is overheating. You will need to reduce the amount of pressure and
sharpening time, cool the drill bit in water in between sharpening.
One edge of my drill bit is longer than the other (the centre point is therefore not
centred)
One side of the drill bit has been sharpened for longer than the other. You will need to sharpen
the shorter side for more time and ensure that both sides are always sharpened for the same
amount of time using the same amount of pressure.
My drill bit is broken (rather than blunt)
The CT4542 is not suitable for sharpening broken drill bits. A drill bit in this condition will take a
substantial amount of time to sharpen. Rough the drill bit into shape first using a bench grinder.
The multi-function sharpener does not start
Check that the accessory module is clicked into place to engage the safety switch.
CARING FOR THE ENVIRONMENT
Power tools that are no longer usable should not be disposed of with household waste
but in an environmentally friendly way. Please recycle where facilities exist. Check
with your local council authority for recycling advice.
Recycling packaging reduces the need for landfill and raw materials. Reuse of
recycled material decreases pollution in the environment. Please recycle packaging
where facilities exist. Check with your local council authority for recycling advice.