Westerbeke 12.5 BTDA Manual

The perfect solution
for all your power needs.
Cruise carefree with Westerbeke
powe r at your fingertips ,
The 12.5 BTDA'Westerbeke, aflawlessly smooth ,
quiet, compact diesel generato r. This state-of-the-art
generator easily provides
all your shipboard power
needs, including electric ranges, microwave ovens ,
air conditioners,refrigerators, TVs, hair dryers,
vacuum cleaners and other small appliances and
power tools .
Powerful,lightweight, economical to operate,
and above all, reliable. Specially engineered to
operate
in ahostile marine envi ronment, and built by
Westerbeke using experience gained in supplying
generators to the United States Navy and Coast
Guard as well as commercial vessels and pleasure
craft. Along with other features, these generators are
designed
to run at 1800 RPM for greater longevity.
They are equipped with simple control systems
rather
than troublesome relays or solid state
components and are fresh- water -c ooled to operate at
optimum temperature levels .
Easy to install, easy to service (one side service),
and easily field convertable to either 50 or 60 Hertz
AC output.
Westerbeke products are supported by a
worldwide network of master distributors and dealers
providing parts, service and technical support.
It is to yo ur advantage to select a generator
made by Westerbeke , world leaders , the people who
pi oneered the new truly " qu i et breed" of generators .
Over 50 years of marine experience go into these
products .
And you can be sure that Wes terbeke will
continue to bring innovation to its products inthe
future.
Many features are
standard equipment
• Fresh water cooling
• Instrument
panel
• Vibration mounts - fail safe rubber type
• 45' water injected elbow
• Coolant recovery tank
• 50 amp alternator
• Safety stop switch
• Drip tray
• Be lt gua rd
• Gear-driven sea water pump
• Lube oil drain hose
• Safety shut-downs - Hi-coolant temp .,low oil pres .,
Hi - exh . temp _
• Oil fill -top and side
• Sel f-bleeding fuel system
• Operator's manual and parts List
• ' CE "Mark
• A.C. Circuit Breaker installed (si ng le phase)
12 .5 BTOA
Diesel Generator
12 .5 BTDA
Diesel Generator
Dimensions
Length
Width
H
eig ht
Weight
35 . 6" (904.24 mm)
18.0" (457.2 mm)
23.8" (604.52 mm)
630 Ibs . (285.76 kilos)
See other side for m ae d imension in f or mat ion
~ WESTERBEKE
Engines & Generators

12.5BTDA ... r,;;;nWESTERBEKE
9.4BTDA .... ~
Gener.tor Design
DESIGN: Bru shless, four pok!, revolving fiekl, power takeoff .
VOLTAGE REGULATION:
Standard ±5 % no load to full load .
FReQUENCY REGULATION: 3
Hz (5%) no load to full load .
INSULATION:
Class " F ", as defined by NEMA MG1·1 . 65 .
--
EIec:trIc:aI Choractoriatlco
Valli Ampo --
12.5 BTDA-614' 120/240 104 152 60 1
9.4 BTDA
-514' 230
40 .9 50 1
TEMPERATURE RISE: Within NEMA MG1 ·22 . 40 def inition when
operating at full load.
COOUNG: Cast centrifugal blower. directconnected.
ELECTROMAGNETIC INTERFERENCE LEVEL: E xceeds requirements fo r
most marine radio-telephones and standard TVs. -
~
EngIne
WI,.
Pow ... Factor
KW RPM Start
4 1.0 12 .5 1600 Remote
4 1.0 9.4 1500 Remote
Three phase units 50 & 60 hertz are available in these ratings, contact
your nearest authorized Westerbeke distributor for information.
*Ad'ustable for 50 or 60 hertz
Speclflc.tlons
Number of cylinders
Type
Disp(acement
Bore and stroke
Comp<eSSion ratio
Rated rpm
HP@1800rpm
Maximum angle of operation
Exhaust atboW' conn .
Sea waterconn.
Dry weight
Combustion system
Aspiration
Lubrication system
Cooling system
Starting aid
Full load fuel consumption
Fuel injection pump
Governor
Injectors
Fuel Filter
Lube oil filter
Lubricant capacity
Fuel transfer pump
Fuel supply and return piping
Starting motor
Alternator
Cold cranking amps
Electrical sys te m
Dimensions
""" ... ( MltIlmttl8I'1Il
r --
'.,
.,.
4 Cylindervertical in·llne
4 Cycle
91 cu . in . 0 . 490 liter)
3. 07 " x 3. 07" (78mm x 78mm)
23 :1
6OHz-l800rpm
50Hz-1500rpm
18 HP
Notto exceed 25° in all directions
2" 00 (50.8mmJ
1" 0 0 (25.4mmJ
574 Ibs. (260.4 kilos)
Swirl type
Naturally aspirated
Forced lubrication by gear pump
7.0 quarts (6.6 liters)
12 volt sheathed type glow plug
1.1 (4.2 LPH)
Boschtype
Cen1rifugal type
Throttle type
Secondary, replaceable type
Full flow. spin-on element
5.5 Quarts (5.2 liters)
12 volt electric type
1 /." rD (.635mm) minimum
'" rO<'952mm) maximum
12 volt. solenoid. actuated shift
50 amps
238 amps
'2 volts OC. negative ground
J~~6--- - -
-- I
...
, ..
"
r •• 1, 01 •
Construction - Engine Components
Cast iron
Cast iron
Cylinderhead
Cylind er block
Crankshaft
Valves Forged crankshaft, five main bearings Overhead valves. rotating type
Self bleedingFuel system
Intakesystem
Cooling system
Exhaust manifold
Tuned intake si lencer for maximum noise reduction
Fresh water-cooled with heat exchanger
Cast aluminum, fresh water-cooled
Optional Equipment
Remote start-stop panel
15 ' panel ext. harness and cover plate
Dual station senders
Ship-shore switch
Power takeoff adapter
Fuel/water separator
Hydro-hush muffler and fittings
.'A
,. on -board s par e parts kit: " 8" extended cruising spare parts kit
Anti-siphon valve
for overboard cooling discharge water
Technica l Manual
Sound Guard sound
enclosure
Optional Sound Guard enclosure
provides optimum silencing for the
generator . Ruggedly constructed
with all panels removable for easy
servicing and maintenance.
Leng1h -45.3- (1 150.6 mm)
Wid1h - 26 .8- (680.7 mm)
Height - 28 .8- (7 31 .5 mm)
Weight -115 Ibs. (52.2 kilos)
Allthorized Dealer
WE STERBEKE CORP ., AVON INDUSTRIAL PARK , AVON , MA 02322 ,U. SA · TELEPHONE :( 508 ) 588-7700 ' FAX :( 508) 559-9323 ' Website : www . v.es101beke . com
Spedfic:a tions St.tJjecI to Charge wiIho.Jt NoOa! . DPS 3M 11 /97