Maintenance; Replacing Fuses - Leica RM2255 Instruction Manual

Universal cassette clamp
60
13
Fig. 68

8.2 Maintenance

21
Leica RM2255
• Detach cassette clamp (13) for a thorough cleaning, removing all
paraffin residues.
• For cleaning, do not use xylene. Use xylene substitutes or paraffin
removers such as "Para Gard".
• The cassette clamp (13) can also be placed in an oven heated to a
maximum of 65 °C, until the liquid wax escapes.
• Remove paraffin residues with a dry cloth.
• After such a cleaning procedure in an oven, always be sure to lubri-
cate the axle of the clamping lever (60) (see also
22
25 23 24 21
Fig. 69
8. Cleaning and maintenance

8.2.1 Replacing fuses

Switch the unit off and unplug it. Use
only the supplied replacement fuses.
Both fuses must have the same rating
(check the imprint!).
• Insert a small screwdriver into the cutout
(25) and carefully pry out the insert.
• Remove the voltage selector housing (21)
together with the fuses (23).
• Remove the fuses. While doing so, leave the
voltage selector switch block (24) in the
housing.
• Replace defective fuses and reinstall the
voltage selector into the instrument.
• Check that the correct voltage value is
displayed in the viewing window (22).
chapter 8.2.3).
69