Reference: Use this instruction with replace-
ment part 3LH243 or 4LH243.
Tools Needed: Phillips screwdriver, flat-
bladed screwdriver, 5/64”
Allen wrench, probe align-
ment tool and instructions.
CAUTION: Improper connections may
cause damage to the instrument.
Instruction:
1. Turn off the power and unplug the instru-
ment.
2. Remove the two screws from the head
cover (A) and lift off the head cover.
3. Loosen the two stir/freeze wire setscrews
(B) from the clapper.
4. Gently pull the stir/freeze wire (C) down
and out through the mandrel.
5. Replace the old stir/freeze wire with the
new one and reassemble by reversing
steps 2-4.
6. Use the probe alignment tool and instruc-
tions to properly position the stir/freeze
wire.
Stir/Freeze Wire Replacement
3LH243/4LH243
For additional information or technical assistance,
please contact Advanced Instruments Hot-Line
®
Service Center (U.S. 1-800-225-4034, outside
North America +US 1-781-320-9000).
4LHP243 Rev4
(4D35/3255 Service Manual)
Page 1 of 1
A
B
C
B
C
4250 / 4D3 Cryoscope
3250 / 3D3 Osmometer
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