Maintenance - Husqvarna DM400 Operator's Manual

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
14 .
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. 25)
2. Wait until the drill bit has fully stopped.
To reset the motor overload protection
1. Stop the product. Refer to
page 14 .
Introduction
WARNING: Read and understand the safety
chapter before you do maintenance on the
product.
WARNING: To prevent injury, disconnect the
power cord before you do maintenance.

Maintenance

Make sure that movable parts function correctly and
move freely.
Make sure the cutting tool is sharp and clean.
Make sure the PRCD functions correctly.
WARNING: Not applicable for 110V type
sold in United Kingdom and Ireland. Refer
PRCD on page 11 .
to
Examine the power cord, other cables, and the power
plug for damage.
Make sure the handles and holding surfaces are dry,
clean and free of oil and grease.
Make sure the product is clean.
Examine the shaft seals for damage/water leakage.
14
To stop the product on page
To stop the product on
Maintenance
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. 26)
3. Lubricate the tool thread with water resistant grease.
4. Use the wrenches to attach the new drill bit.
Maintenance schedule
* = General maintenance done by the operator. The
instructions are not given in this operator's manual.
X = The instructions are given in this operator's manual.
O = Speak to a Husqvarna service agent.
Before After
each use each use
*
*
X
* *
* *
X X
X
To start the product on
After the
Daily each 300
first 100 h
1188 - 008 - 14.09.2020
After
h