Maintenance; Replacing Fuses - Leica RM2255 Instructions For Use Manual

Universal cassette clamp
60
13
91
Fig. 74
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 re-
movers such as "Para Gard."
• The cassette clamp (13) can also be placed in an oven heated to a maxi-
mum 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 lubricate
the spiral springs (91) of the tension lever (60) and move it back and forth
several times.
22
25 23 24 21
Fig. 75
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 hous-
ing.
• Replace defective fuses and reinstall the volt-
age selector into the instrument.
• Check that the correct voltage value is dis-
played in the viewing window (22).
73