Edgetech 8242XS, Hardware Manual

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4-19
Release Latch Inspection (following high load in-air releases):
It should be routine practice after any release (air or water) to inspect the release latch and release latch
pin for flatness. In the absence of the damping effect of water or if very high loads are released, the hook
latch and Release Hook exhibits significant dynamics.
When testing the release in air, the hook and latch will strike one another. Slight bending of the latch or
latch pin (a few thousandths of an inch) may occur. Bending greater than .002-inch in the latch or pin will
impair the release performance and may warrant replacement of the bent part. To prevent binding during
in-air tests, bond a 3/8-inch thick by 2-inch long strip of rubber to the hook. This will absorb the shock of
impact when the latch strikes the hook. This is only necessary if a heavy load will be used for the test.
ON/OFF Option
When the On/Off Option is included, the instrument may be fully prepared and sealed before powering
the electronics. The power supply is an open loop until the On/Off Actuator Plug is fully inserted. The
On/Off Actuator Plug is a keyed four-pin plug that closes the power supply circuit when it engages the
connector inside the instrument.
WARNING!
NEVER twist or attempt to rotate the On/Off Actuator Plug, as this may
break the male connector pins inside the On/Off Mechanism.
There are two proper alignment positions of the 1/8-inch milled slot on the top of the On/Off Actuator
Plug. For Releases machined prior to the year 2000 the 1/8-inch milled slot on the top of the On/Off
Actuator Plug pointed away from the center of the end; and for Releases manufactured after 2000 the
1/8-inch milled slot on the top of the On/Off Actuator Plug pointed to the bottom left, approximately 200
degrees from the top center position. Both alignments are shown in
F
IGURE
4-27 .
Figure 4-27: The Two Possible On/Off Actuator Plug Positions