73
Troubleshooting and Service
Clapper (3)
Coil (2)
Head
Mandrel (5)
Sample Probe
Connector (10)
Stir/Freeze Wire
Setscrews (4)
Mandrel
Setscrews (9)
Sample Probe
Setscrew (6)
Stir Wire Slot in
Mandrel
Stir/Freeze Wire (7)
Sample Probe (8)
Yoke (1)
Figure 7: Operating Head
Sample probe checks and replacement
Glass-tipped probes are very sensitive and quick to respond but are
somewhat susceptible to pushing, pulling and bumping damage. Such
damage often causes varying electrical leakage to ground through
the sample and may usually be detected via close visual inspection or
disconnecting the connector and checking the probe resistance. This
can be done in place without disturbing the physical adjustment of the
probe.
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