I.B. 48006 Page 5
Effective 11/97
If the latch has been de-energized with an adjustment
that allows the cam roller to travel high into the armature
notch when latched, the trip solenoids have an increased
resistance of their push. In a poorly adjusted latch, this
may prevent tripping at 80% of trip solenoid voltage, in
which case the latch must be made more sensitive.
CHECK-OUT, MECHANICAL
Refer to the instruction material relating to the electri-
cally-held version of the contactor. See Table I.
Make sure all power circuits are isolated. The contactor
can be checked in its enclosure or outside. If the starter
is a new factory assembly it is probably easiest to test
the contactor as installed. Check all mechanical inter-
locks as installed, to make certain that they function
properly.
Fig. 4 Mechanical Latch Installed, 360A Contactor
CAUTION
A LATCH IS SOMEWHAT LIKE A MOUSETRAP. USE
CARE TO PROTECT FINGERS IN THE EVENT OF AN
ACCIDENTAL TRIP DURING CHECK-OUT.
5259C57
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