Maintenance - Husqvarna DM400 Manuel D'utilisation

To start the product
WARNING: Make sure that the drill bit can
rotate freely. It starts to rotate when the
motor starts.
WARNING: If this is the first time the product
is started for the day, make sure you make a
check of the PRCD. Refer to
PRCD on page 10 .
1. Push the "RESET" button on the PRCD. (Fig. 22)
2. To set the operation speed, turn the drill spindle and
at the same time move the gear selector. Set the
gear selector in the correct position for the operation.
(Fig. 23)
3. Make sure that the water system is open. (Fig. 24)
4. Set the ON/OFF switch to "1". (Fig. 25)
To operate the product
WARNING: If the PRCD engages, remove
the drill bit from the hole before you push
"RESET".
WARNING: Dangerous accidents can occur
if the concrete core stays in the drill bit when
you remove the drill bit from the hole.
WARNING: When you use a drill stand,
operate the power tool by the insulated
grasping surfaces of the drill stand.
CAUTION: Make sure that no objects hit the
drill bit.
CAUTION: Do not use more force than
necessary. This only makes the operation
slow and causes overload to the motor.
1. Start the motor. Refer to
page 13 .
2. Let the motor speed increase to the maximum speed
before the drill bit touches the surface.
Introduction
WARNING: Read and understand the safety
chapter before you do maintenance on the
product.
1188 - 009 - 12.10.2020
To examine the
To start the product on

Maintenance

3. Push the drill bit into the surface with the feed lever.
4. If you drill through iron reinforcements, use more
initial pressure and a lower gear than if there were
no iron reinforcements.
5. Use very small pressure initially to keep the drill bit in
correct position.
6. During operation, make sure that the water removes
all waste material from the drill hole. Adjust the water
pressure if it is necessary.
7. Stop the motor. Refer to
13 .
To stop the product
WARNING: The drill bit continues to rotate
for some time after the motor stops. Do not
stop the drill bit with your hands. Injuries can
occur.
1. To stop the product, set the ON/OFF switch to "0".
(Fig. 26)
2. Wait until the drill bit has fully stopped.
To reset the motor overload protection
1. Stop the product. Refer to
page 13 .
2. Remove the blockage from the drill bit.
3. Start the product. Refer to
page 13 .
To replace the drill bit
WARNING: Pull out the plug from the mains
outlet before you replace the drill bit.
Note: Only use diamond drill bits that are approved for
your product. Speak to your Husqvarna dealer for more
information.
1. Make sure that you have got a new drill bit, 2
wrenches and water resistant grease.
2. Use the wrenches to remove the drill bit. (Fig. 27)
3. Lubricate the tool thread with water resistant grease.
4. Use the wrenches to attach the new drill bit.
WARNING: To prevent injury, disconnect the
power cord before you do maintenance.
To stop the product on page
To stop the product on
To start the product on
13