Heath Consultants GT Series - Manual (Page 136)

12-12
USER HANDBOOK
7) Before attaching the probe connector to the cotton
filter housing, check the probe washer for signs
of damage. If damaged, it must be replaced with a
new probe washer (Part No.12379).
8) Attach probe connector to the cotton filter, in a
clockwise direction, then tighten to secure. See
Fig. 12.8.
Note:
Care must be taken not to overtighten the
probe connector.