PURSUIT 3400 Express Fisherman, Owner'S Manual

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used (turned ON) in conditions such as those described in Section
4.2.4. Otherwise, it should remain in the OFF position.
From these main disconnect switches power is distributed to the
helm (see Section 1.1.4) and cabin distribution panels (see Figure
4-2). Power to all D.C. components is further distributed from
these panels. For information on which circuit powers which
components, please refer to the wiring schematics provided in
Appendix C, and the comments under Section 4.2.4, Operating
Notes.
4 . 2 . 4 . Operating Notes
As mentioned in Section 4.2.3, a third disconnect switch has
been provided for use in certain conditions.
Use of the Emergency Cross Connect Switch defeats
the built in separation of operational and safety items
from comfort and convenience items. This may allow
greater load on the engine bank than it is designed
fo r, th us causing en gine cranking and safety
functions to not operate correctly. This switch should
only be used with the following understanding of it’s
operation and risks.
The conditions under which this third disconnect switch should
be used are:
1. Long term trolling on the starboard engine, with
the port engine not operating. When the port
engine is not operating, the engine battery bank is not
being charged. Operational loads on this bank will
gradually reduce it’s capacity, and could do so to the
point where critical operational and safety items do
not operate as expected. The engines may also be
difficult to start, even with the battery parallel feature.
Use of the emergency cross connect switch will allow
the starboard engine to charge both battery banks.
Charging of the engine bank can also be accomplished
via the 120 V A.C. battery charger, if power is
Rev. A 05/02/99
CAUTION
12 V D.C. SYSTEM ELECTRICAL SYSTEMS
4-6 3400 Express Fisherman