19
The Advanced
®
3D3/4D3 Service Manual
Removing the Instrument Cover & the Head Cover
Tools Needed: Flat-bladed screwdriver,
Phillips screwdriver.
Warning-Hazardous Voltage
Warning-Internal components may
be damaged by static electricity.
CAUTION: Improper connections
may cause damage to the instrument.
The following instructions refer to 4D3
cryoscopes with suffix "A" or later, and to
all 3D3 osmometers:
1. Turn off the power and unplug the instru-
ment.
2. Remove the two sets of screws from the
side panels (A) and the two screws from
the rear panel (B).
3. Slide the instrument cover up and off.
4. Remove the two screws from the head
cover (C) and lift off the head cover.
The following instructions refer to 4D3
cryoscopes without a suffix:
1. Turn off the power and unplug the instru-
ment. Remove the heat transfer fluid
from the front cover.
2. Remove the two screws from the rear
panel of the back cover (B) and lift off
the back cover.
3. Remove the four screws from underneath
the front cover, lift the front cover slightly
up and then slide it forward and off.
4. Remove the keypad display connectors
from the keypad on the front cover.
5. Remove the two screws from the head
cover (C) and lift off the head cover.
C
A
B
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