Leica Biosystems LN22 - Manual (Page 39)

39 Leica LN22
5.2 Maintenance
5.2.1 General maintenance instructions
Only authorized Leica service engineers may open the instrument
for maintenance and repair work!
Before opening the instrument, switch off the mains switch and pull
the mains plug!
The instrument is practically maintenance-free. However, to ensure
smooth and trouble-free operation of the instrument over a long period
of time, we recommend the following preventive maintenance steps:
•
Have the instrument inspected o n c e a year by an authorized Leica
Technical Service engineer.
• Ask for a Service Contract after the warranty period expires.
For details, please contact your local Leica sales office.
• Never attempt any repairs on the instrument yourself since this will
invalidate the warranty.
5.2.2 Exchanging the mains fuses
Before exchanging the fuses, switch the instrument off and pull the
mains plug!
When exchanging fuses, only use replacement fuses with the same
specification as the original ones. Refer to chapter 3 ‘Technical
data’ for the correct specifications.
5. Cleaning and maintenance
The mains fuses are located in the voltage selec-
tor housing (3).
•
Remove the voltage selector housing (3) as
described in chapter 5.5.2.
• Remove the fuses (4) and insert new fuses of
the same technical specification.
• Reinsert the housing together with the insert
(2) and the fuses into the corresponding open-
ing in the instrument housing and push lightly
to lock it in place.
• Check again whether the correct voltage
shows in the indication window (16).
Fig. 39
14
2
4
1 16
3
16