Husqvarna DM 540i Operator's Manual page 18

Maintenance
Make sure that movable parts function correctly and
move freely.
Make sure that the cutting tool is sharp and clean.
Make sure that the keypad works correctly and that it is
not damaged.
Make sure that the handles and holding surfaces are
dry, clean and free of oil and grease.
Make sure that the product is clean.
Clean the air intake on the product.
Examine the shaft seals for damage/water leakage.
Make sure that the nuts and screws are tight.
Make sure that the power trigger operates correctly.
Replace the gear oil.
Do a check of the connections between the battery and
the product. Do a check of the connection between the
battery and the battery charger.
Blow through the product and battery cooling slots care-
fully with compressed air.
To do a check of the control panel
1. Push and hold the On/Off button until the green LED
Functions of the control panel on
comes on. Refer to
page 12 .
2. Push and hold the On/Off button until the green LED
goes off.
To do a check of the battery and the
battery holder
1. Clean the battery and the battery holder with a soft
brush.
2. Clean the cooling slots and battery connectors. (Fig.
37)
3. Make sure that the battery is not damaged and there
are no other defects, such as cracks. (Fig. 38)
To do a check of the battery charger
1. Make sure that the battery charger and the power
supply cord is not damaged. Look for cracks and
other defects. (Fig. 39)
18
Before After
each use each use
*
*
X
* *
X X
X X
X
To clean the cooling system
The cooling system keeps the motor temperature down.
The cooling system includes the air intakes, the fan on
the motor and the air outlet.
1. Clean the cooling system with a brush weekly or
more frequently if it is necessary. (Fig. 40)
2. Make sure that the cooling system is not dirty or
blocked.
CAUTION:
cooling system can cause the product to
become too hot. This causes damage to
the product.
To do maintenance of the diamond drill
bit
• Make sure that the diamond tools segments are
sharp. Sharpen blunt diamond segments with a SiC
grind stone.
• Make sure that there is no vibration in the drill bit. If
there is vibration in the drill bit, the diamond
segments can come loose.
• Make sure that the diamond segments are
sufficiently larger than the inner and outer diameter
of the drill bit tube.
After the
Daily each 300
first 100 h
*
X
O
X
A dirty or blocked
1567 - 001 - 21.06.2021
After
h
X
*