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GENERAL
Introduction
This manual contains the equipment operating procedures as well as additional information needed to
help the operator keep the marine equipment in proper working order. Study and follow the instructions
carefully. A planned maintenance program is included in this manual; adhering to the program will
result in better equipment performance and longer equipment life. Proper diagnosis of a problem is the
most important step to satisfactory repair; therefore, a troubleshooting table is included.
Understanding the Diesel Engine-Driven Generator
The diesel engine closely resembles the gasoline engine since the mechanism is essentially the same. The
cylinders are arranged above a closed crankcase; the crankshaft is of the same general type as that of a
gasoline engine; and the diesel engine has the same type of valves, camshaft, pistons, connecting rods,
and lubricating system.
Therefore, to a great extent, a diesel engine requires the same preventive maintenance as a gasoline
engine. The most important factors are proper ventilation and proper maintenance of the fuel, lubricating
and cooling systems. Replacement of fuel and lubricating filter elements at the time periods specified is a
must, and frequent checking for contamination (that is, water, sediment, or algae) in the fuel system is
also essential. Another important factor is the use of the same brand of high detergent diesel lubricating
oil designed specifically for diesel engines. Be careful not to put gasoline in the diesel fuel tank(s).
Gasoline does not have the same lubricating qualities as diesel fuel; consequently, gasoline in the fuel
lines will damage components in the fuel injection pump and fuel injectors.
The diesel engine does differ from the gasoline engine, however, in its handling and firing of fuel. The
carburetor and ignition systems are done away with and in their place are two components - the fuel
injection pump and the fuel injectors.
Ordering Parts
Whenever replacement parts are needed, always provide the generator model number designation (i.e. 7.6
KW BID ), engine serial number, and generator serial number as they appear on the data plates located
on the exhaust manifold and on the generator end. You must provide us with its information so we may
properly identify your generator set. In addition, include a complete part description and part number for
each part needed (see the separately furnished Parts List). Also, be sure to insist upon Westerbeke factory
packaged parts because "will fit" or generic parts are frequently not made to the same specifications as
original equipment.
Note that component locations in the manual are referenced from the front of the engine which is the
pulley/drive belt end. (The flywheel/generator end is the rear end.) Left and right sides are determined by
the engine; imagine straddling the engine and facing in the same direction as the front of the engine: the
left side is at your left, the right side at your right.
Westerbeke generator sets are thoronghly checked and given a final run under various load conditions
before leaving the factory. Test running the generator ensures dependable operation, long service life, and
a satisfied owner.
Care at the factory during assembly and thorough testing have resulted in a Westerbeke diesel engine-
driven generator capable of many thousands of hours of dependable service.
However, what the
manufacturer cannot control is the manner or location the generator is installed in the vessel or the
manner in which the unit is operated and serviced in the field. That part is up to the buyer/owner-
operator.
WESTERBEKE GENERATORS
8
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