Westerbeke WMD 7.7 User manual

(
WESTERBEKE
7.7KW
MARINE DIESEL
GENERATOR
SET
TOLLYC RAFf 48 ' CONV ERT ABLE
A small, reliable, smoo th running Ge nerator Se t for all your
shipboard need
s; 120 vo lt elect rica l power at the turn of a
switch for : El ec tr ic Cooking, Microwave Oven, Re fri geration,
Cabin Applianc es, Power Tool s, and Navigation/Communica-
tion Equipme
nt. Like all W es terbeke Generator Set s, it is fr esh
water cooled wi
th an Engine mount ed Heat Exchanger. The
Engine
and Generator are co nnected through special "Co m·
monized" Dri ve Dis cs , Fly wheel, and Flywheel Housing into a
compact, ca re full y a li gned Generator Set. Th e co mpl ete unit is
mount ed on li ghtweight rails through sof t fl exible Isolator
Mounts that prevent the
tr ansfer of vibratio n. A lightweight
removable Drip
Tra y is fill ed under the unit between the
mounting rails.
Th e Engine is fill ed with an El ectric Fu el
Pump and Self·Bleeding Fu el Sys tem that eliminates hand prim·
ing and blee din g. Cas t ir on cylinder head and block plus sw irl
t ype co mbu stion c ham ber plus tuned air in take silencer pro·
duce quiet running unm atched in the industry.
Th e Weste rb eke 7.7 is li ghtweight, safe, dependabl e, durable,
and econo
mi cal to operate. Designed to operate at a quiet 1800
RPM. the Westerbeke 7.7offers 3 cylinder 4cycle smoothness to
pro
vi de electrical co nveniences usua ll y found only on larger
boats.
FOR P
OWE R OR SAILBOAT ... A NEW SERIES OF
DIESEL GENERATOR SETS FROM WESTERBEKE.
~ FRESH WATER COOLED
I _ __ ._ __ ._ 2 PASS ALUMINUM MANIFOLD TUNED AIR
INTAKE SILENCER
CONTR
OL PANEL D.C. CIRCUIT
OIL PRESSU RE ~ REAKER ~ ' ~- -= """,,!.--'~
D.C. V OL T AG E ...
RUNNI NG TI ME -.; Y.
WATER Tf MP
PREH~AT ........ ~ .. iii
STA RT & S TOP
SWITC t1· ~
HEAT EXCHANCER W I
REMOVA lllF END CAPS
INHERENTLY
RECULATED
REMOVABLE DRIP TRAY
(NOT SHOWN) /
12 VOLT CEAREO'
STARTINC MOTOR
,
VIBRATION
ISOLATORS
MOUNTINC RAILS
ELECTRIC FUEL
PUMP
WITH FUEL STRAINER
~ ____ FUEL
FILTER
--- 12 VOLT
SO AMP
ALTERNATOR
HICH WATER TEMP
& L OW OIL PRESSURE
SH UTDOWN
SEA
WATER
PUMP
SPIN ON
OIL FILTER
GENERATORS: 3,4 , 7.7, 11 ,12.5,15, 20 , 25,32 , 45
Fl'flsh Wafe, Cool ed Diesel Genel'flfol'S from WesterlJeke.

DESIGN : Four pole revolving armature, inh er en tly regu-
lated , self limiting, rectifi er excited, A.c. slip rings, single
bearing design .
VOLTAGE REGULAnON: ±7% no load to full load.
FREQUENCY REGULATION: 3 He rtz (5 %) no load to full
load.
INSULATION: Class F as d ef ined by NEMA MGI-1.65
ELECTRICAL CHARACTERISTICS
Model Volts
Amps
Hertz Phase Wi
re
7.7-614- 1201240 33 60 1 4
7.7-634 1201240 23 60 3 4
5.8-514- 1201240 25 50 1 4
5.8-534 1201240 17.5 50 3 4
'Aeconnectable to 120 Volts @ twice the amperage.
- . ,.
... - 9.7S
control pane l
ENCINE
Engine Type . . . . . .. 3 c yl ,4 cycle, wat er coo led , na turally
aspirated, ve rtical ove rh ead valve, diesel engine
Bore & Stroke ......... 2 .8 7" x 3.07" (73mm. x 78 mm .)
Displa ce ment . . . . . . . . . . . . . . . .. 60 c ubic in ch (.979 litre)
Compression ratio .......... . .... . .. .. .. . .. . . 23 to I
Cooling wat er capacity. . . . . . . . . .. . . . . . . . . . . . .. 5 Qts .
Fuel Injection Pump ................. Bosch Type with
Individual plung er for each cy linde r
Inj ec to rs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pintle type
Combustion Chamber ............... Swirl type foreasy
starting
and quiet ope ration
To tal weight ......... . . .... ... ............. 520 Ibs .
Governor . . . . . . . . . . . . . . . .. Mechanical centrifugal type
Fuel filt er . . . . . . . . .. . . . . . . . . . . . . .. Paper eleme nt type
Lub . oil filt er ....... Full fl ow, spin on,paper ele me nt type
Lub . oil ca pacity with filt er . ................... 3.3 Qts.
Starting motor ........... Geared electric motor, 12Volt.
Starting aid . . . . . . . . . . .. 12 Volt sheathed type g low plug
Fu el pump . . . . . . . . . . . . . . . . . . . . . . Electric plun ge r type
Rated RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1800
Max . HP: at rated RPM . . . . . . . . . . . . . . . . . . . . . . .. 14 HP
Full load fu elcons umpti on app r ox ........•..... 0.9 GPH
TEMPERATURE RISE : Within NEMA MGI-22.40 definition
wh en operating @ full load .
CODUNG : Centrifugal blower, direct co nnected.
RADIO INTERFERENCE LEVEL: Capacitors minimize in -
terference
within the limits of most marine applications.
ARMATURE: Balanced laminated steel, double dipped and
baked.
RATINGS DERATINGS ENGINE
Power
F ac tor KW RPM Start
1.0
.8
1.0
.8
7.7 3.5% each 1000 feet 1800 Remote
7.7 above sea level. 1800 Remote
1% for each 10 ° Fahrenheit
5.8 above 85° Fahrenheit ambient. 1500 Remote
5.8
10 % for continuous duty. 1500 Remote
STANDARD EQUIPMENT
12 Volt 50 Ampere Alternator . Coolant recovery tank
Fresh water cooling system · Operators Manual
A
ir Intake S il encer · 12 Volt Starting Motor
Vib ration Isolaters • Control Panel
Water Inj ec ted Exhaust Elb ow
Drip Tray
STANDARD MOUNTED PANEL
OPTIONAL
"SOUND/GUARD"
SOUND ENCLOSURE
APPROX. DIMENSIONS: 2S"W x 49 "L " 28"H.
APPRO X. WEIGHT: 130 Iba..
OPTIONAL EQUIPMENT
Hydro Hush S il encer . "So und/Guard"
Rem ote Instrume nt Pane l. 1 5' Cable for remote Panel
Ship to Shore Transfer Switch
CALL YOUR WESTERBEKE REPRESENTATIVE
OR CONTACT THE ...
J. H. WESTERBEKE CORP.
Pnnted ln U SA
Avon Indust rial Park, Avon, MA 02322,
Cable: Westcorp, Avon, Te lex: 92-4444
(

WESTERBEKE
7.7KW
MARINE ~ IESEL
) GENE,ATOR
/ / SET
J
) r
= = =
.. ..
A small, reliable, smooth running Generator Set for all your
shipboard nee
ds ; 120 vo lt electricol power at the turn of a
sw it ch for: Electric Cooking, Mi crowave Oven, R ef rigeration,
Cab in Appliances, Power Tool s, and Navigation /Co mmuni ca·
tion Equipment. Like all Westerbeke Ge nerator Se ts , it is fr esh
water cooled with an Engine mount
ed H ea t Ex changer. Th e
Engine
and Ge nerator are co nnected through special "Com·
monized" Drive Discs , Fl yw heel, and Fl yw heel Housing into a
co mpact, core full y aligned Generator Set. Th e co mpl ete unit is
mounted on lightweight rails through so ft fl ex ible Isolator
Mounts that prevent the transfer of vibra
ti o n. A lightweight
re movable Drip Tra y is fitt ed under the unit between the
mounting rails. The Engine is
fitt ed with an El ectric Fu el
Pump and Se lf·Priming Fu el System th at eliminat es hand prim·
ing and bleeding. Cas t iron cylinder head and block plus sw irl
type
co mbu s ti on c hamb er plus tuned air intake silencer pro·
duce quiet running unmatched in the industry.
Th e W es te rb eke 7. 7 is li ghtweig ht. s af e, dependable, durable,
and econo
mi co l to operat e. Designed to operate at a quiet 1800
RPM. the Westerbeke 7.7 offe rs 3 cylinder 4cycle smoothness to
provide electri
co l co nveniences usually found only on larger
boats.
FOR POWE R OR SAILB OAT ... A NEW SERIES OF
DI ESEL GENER ATO R SETS F RO M WESTERBE KE.
..
GENERATORS: 4.4 , 7.7, 10, 11.1, 12.5, 15, 20,30,45
Fresh Water Coolad DiBSBI Generators from WesterbBke.

RATING: 7 .7 kw . 1. 0 power factor.
VOLTAGE: Modef 6 14 -four lead reconnectable 120
vo lt . 2 wire. 66 am ps : 1201240 volt. 3 wire. 33 amps.
FREQUENCY: 60 Hertz (50 Hertz available at reduced
out-put.
Co nsult fa ctory.)
DESIGN: Four pole r evo lving armature with no D .C .
brushes or commutator. Inherently re Rulat ed with sol id
state r ec tifier type self-excitation. A .C. s lip rings. drip
proof construc
ti on. single b ea ring design. Co nnec ti on to
th e engine is by a sem i-fl exible drive di sc for pos iti ve
alignment.
VOLTAGE REGULATION: ±7% no l oa d to full load.
FREQUENCY REGULATION: 3 Hertz (5 %) no load to
full load.
cant""
ENGINE
Engine Type ........... 4 cycle, water cooled, naturally
aspirated. vertical overhead valve,
di esel engine
Cylinder arrangement .............. 4 cylinders in line
Bore & Stroke .
.. . . ... . .2.87 "x3.07" (73mm. x78mm .)
Displacement ................ 60 cubic inch (.979 litre)
Compression ratio
.......................... 23 to I
Cooling water capacity ....................... 5 Qts.
Rotation
... . ...... SAE Std.(clockwise facing front end)
Fuel Injection Pump
........... Bosch Distributor Type
Individual plunger for each cylinder, ca m driven
in a precision housing machined in block for
rigidity and accuracy.
Injectors .............................. Pintle type
Combustion Chamber
............. Swirl type for easy
starting
and quiet operation
Total weight
............................. 5201bs.
Governor ................ Mechanical centrifugal type
Fuel filter
...................... Paper element type
Lubricating device
.. Forced lubrication by trocho id pump
Lub.
oil filter . ..... Full flow,spin on, paper element type
Lub.
oil capacity ............................ 3 Qts.
Starting motor
..... . .... Geared electric motor, 12 Volt.
Starting aid
........... 12 Volt sheathed type glow plug
Fuel pump
.................... Electric plunger type
Rated
RPM ................................. 1800
Max. Hp . at rated RPM . . . . . . . . . . . . . . . . . . . . .. 14 HP
LWMD7.7
INSULATION: Class "F" as defined by EMA MGI-1.65.
TEMPERATURE RISE: Within NEMA MGI-22.40 defi-
nition when operating at full load.
COOLING: Centrifugal type blower. direct co nn ec ted.
RADIO INTERFERENCE LEVEL: Capacitors minimize
inte
rf eren ce within the limits of most comme rcial and
ci vilian ap pli cations.
ARMATURE: Bal anced laminated steel. double dipped
and baked.
FIELD RING: Thick hot ro ll ed steel with welded b ea ring
support bra
cke t. Ma chined as an assembly for pr ec ise
b
ea ring a li gnment.
BEARING: Pre-lubricated ball b ea ring. double sealed
with anti-rotation lock.
STANDARD EOUIPMENT
12 Volt 50 Ampere Alt ernator . Coolant recovery tank
Fresh water cooling system · Operators Manual
Air Intake
Sil en ce r · 12 Vo lt Starting Motor
Vibration Isolaters • Control Panel
Water Inj ected Exhaust Elb ow
STANDAR D MOUN TE D PANEL
OPTIONAL EQUIPMENT
Hydro Hu sh Silencer · "Sound/Guard"
Remote Instrument Panel · 1
0' Cable for r emote Panel
Ship to Shore Tran sfer Switch
OR CONTACT THE . . .
J. H. WESTERBEKE CORP.
Mar int' lP -9 /81/ SM Pri n l ~ in USA
C> \O, ' ('s lt rb t'kt' CU r pOr3IKm
Avon Industrial Park , Avon, MA02322 , [phone]
Cable:
Wes t corp, Avon, Telex :92-4444