Troubleshooting - Husqvarna DM 540i Operator's Manual

Maintenance
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 13 .
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.
36)
3. Make sure that the battery is not damaged and there
are no other defects, such as cracks. (Fig. 37)
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. 38)
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. 39)
2. Make sure that the cooling system is not dirty or
blocked.
CAUTION:
cooling system can cause the product to
Troubleshooting of the product
If you cannot find a solution to your problems in this
operator's manual, speak to your HUSQVARNA service
agent.
1567 - 001 - 21.06.2021
A dirty or blocked

Troubleshooting

Before After
each use each use
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.
• Lubricate the drill bit thread with water resistant
grease. This makes it easy to loosen the tool.
• Make sure that the radial run out at the diamond
segments of the drill bit is not more than 1 mm.
To replace the gear oil
CAUTION:
stop the product and speak to an approved
service center. The gear becomes damaged
if the gear oil level is not sufficient.
• Let an approved HUSQVARNA service center
replace the gear oil.
To examine the water connection
CAUTION:
from the water connection ring, the shaft
seals must be replaced immediately.
• Let an approved HUSQVARNA service center repair
the water connection.
After the
Daily each 300
first 100 h
O
X
If there is gear oil leakage,
If there is a leakage of water
After
h
X
*
19