Sample Probe Replacement
4D3102
Reference: Use this instruction with replace-
ment part 4D3106.
Tools Needed: Phillips screwdriver, flat-
bladed screwdriver, probe
alignment tool and instruc-
tions (included).
CAUTION: Improper connections
may cause damage to the instrument.
Instruction:
1. Place an empty sample tube in the freez-
ing chamber to catch any extraneous
material that might fall in.
2. Turn off the power and unplug the instru-
ment.
3. Remove the two screws from the head
cover (A) and lift off the head cover.
4. Unplug the sample probe connector from
the head transition board (B).
5. Loosen the two mandrel setscrews (C).
6. Lower the probe and mandrel together,
down over the stir/freeze wire.
7. Push the connector and lead wires of the
new sample probe up through the center
hole of the mandrel, and raise the mandrel
so that the stir/freeze wire extends down
through the stir/freeze wire channel in the
mandrel.
8. Seat the mandrel firmly up into the man-
drel hole, with the stir/freeze wire chan-
nel perpendicular to the front edge of the
chassis and no gaps between the flange
and the underside of the chassis.
9. Without overtightening (overtightening
can damage the mandrel), re-tighten the
two mandrel setscrews to hold the man-
drel in place.
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).
4D3P02 Rev1
replaced by 3DP700
(4D35/3255 Service Manual)
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B
C
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