Table of Contents
Advertisement
CAUTION
DO NOT use a scoop-type through-hull fitting as a means of supplying sea water to the gen-
erator. Water pressure against this type fitting, while the vessel is under way, can push sea
water past the sea water pump's impeller into the generator's exhaust system, filling it and the
engine as well. Flush-type, clear, through-hull fittings are recommended and should be lo-
cated on the hull so as to be below the watertine during all angles of boat operation.
The use of common-type street elbows is not recommended for plumbing the sea water circuit. These
generally have very restrictive inside diameters. Machined fittings with true inside diameters are preferred.
Electrical System
The electrical system should be checked to make sure all wiring harnesses are property tied down with
clamps or plastic ties and that all wiring harnesses are spaced at intervals close enough to prevent chafing
from vibration. Check to make sure all engine harness connections are tight and that they are made to the
appropriate terminals.
DC Electrical Connections
A common ground for the negative (-) DC terminal connection is found at the bell housing of the generator,
next to the starter, in the form of a threaded grounding stud. The battery ground should be connected at
this stud.
Connect the battery's positive
(+)
connection to the starter solenoid tagged for this connection.
CAUTION
To avoid an overcharging condition, and a possible equipment failure, DO NOT disconnect
the DC battery source while the engine is running.
Grounding
The generator set must be grounded to comply with United States Coast Guard regulation 33 CFR-183 which
specifies that a common conductor be connected between the generator set and the vessel's main propul-
sion engine's grounded starter motor circuit. This conductor (the common ground) prevents accidental pas-
sage of cranking current through fuel systems and smaller electrical conductors common to the engines.
This conductor must be the same size as the largest battery cable.
Automatic Shutdown
High Exhaust Temperature Shutdown Switch (normally closed)
An exhaust temperature switch is located on the exhaust elbow. This switch will open and interrupt the DC
voltage to the ignition coil (which turns OFF the engine), should the switch's sensor indicate an excessive
exhaust temperature (an inadequate supply of sea water coolant causes high exhaust temperatures). This
switch opens at 260 - 270
0
F (127 -132
0
C) and resets at approximately 225
0
F (107
0
C).
Westerbeke Generators
28
Advertisement
Table of Contents
