Chapter 9 Electrical System
2. Battery
, 4LHA Serit
2. Battery
2-1 Construction
Terminal
Battery case
Negative plate
-Separate plate
"~-Glass mat
Positive plate
The battery utilizes chemical action to convert chemical
energy to electrical energy. This engine uses a fead acid
battery which stores a fixed amount of power that can be
used when required. After use, the battery can be
recharged and used again.
As shown in the figure, a nonconductive container is filled
with dilute sulfuric acid electrolyte. Lead dioxide positive
plates and lead dioxide negative plates separated by glass
mats are stacked alternately in the electrolyte. The positive
and negative plates are connected to their respective
terminals.
Power is removed from the battery by connecting the load
across these two terminals.
When the battery is discharging, an electric current flows
from the positive plates to the negative plates. When the
battery is being charged, electric current is passed through
the battery in the opposite direction by an external power
source.
2-2 Battery capacity and battery cables
2-2.1 Battery capacity
Since the battery has a minimum capacity of 12V, 70AH, it
can be used for 100 ~ 150AH.
Battery capacity
minimum
12V — 100AH
Battery capacity
standard
12V — 120AH
Battery capacity
cold weather
12V — 150AH
Full charged specific gravity
1.26
2-2.2 Battery cable
Wiring must be performed with the specified electric wire.
Thick, short wiring should be used to connect the battery
to the starter, (soft automotive low-voltage wire [AV wire]).
Using wire other than that specified may cause the fol-
lowing troubles:
Wire thinner than specified
Single conductor wire
Wire longer than specified
r
High wiring resistance
r
Low current
Faulty starting
Open circuit caused
by vibrations
Faulty charging
Battery switch
The overall lengths of the wire between the battery (+)
terminal and the starter (B) terminal, and between the bat-
tery (-) terminal and the starter (E) terminal, should be
determined according to the following table.
Voltage
system
Allowable
wiring
voltage
drop
Conductor
cross-
section
area
a + b + c
allowable
length
12V
0.2Vorless/100A
20mm
!
(0.0311 in.')
Up to 2.5m
(98.43 in.)
12V
0.2Vorless/100A
40mm'
(0.062 in.')
Up to 5m
(196.87 in.)
Note: Excessive resistance in the key switch circuit
(between the battery and start [S] terminals) can
cause improper pinion engagement. To prevent this,
follow the wiring diagram carefully.
2-3 Inspection
The quality of the battery governs the starting performance
of the engine. Therefore the battery must be routinely in-
spected to ensure that it functions perfectly at all times.
2-3.1 Visual inspection
(1) Inspect the case for cracks, damage and electrolyte
leakage.
(2) Inspect the battery holder for tightness, corrosion, and
damage.
(3) Inspect the terminals for rusting and corrosion, and
check the cables for damage.
(4) Inspect the caps for cracking, electrolyte leakage and
clogged vent holes.
Correct any abnormal conditions found. Clean off rusted
terminals with a wire brush before reconnecting the bat-
tery cable.
9-3
Summary of Contents for 4LHA-HTP
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Page 89: ...Y0OR4782 OIL SEAL HOUSING REFER TO Fig 1...
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Page 117: ...Y00R4782 Fig 18 1 5 E W K M I X I N G E L B O W E X H A U S T B E N D 5...
Page 121: ...Y00R4782 Fig I W AIR COOLER 4 L H A H T E P 4 L H A H T Z E P REFER TO F i g 24...
Page 127: ...Y00R4782 F i g t C LUB OIL COOLER REFER TO F i g 1 9 FLYWHEEL SIDE...
Page 131: ...Y00R4782 Fig 24 LUB OIL SYSTEM REFER TO Fi g 2 4LHA STZE P 4LHA DTZE P REFER TO Fi g 6...
Page 135: ...Y00R4782 Fig C O LUB OIL PIPE TURBOCHARGER REFER TO F i g 1 5 1 6 1 7...
Page 137: ...Y00R4782 Fig 27 MMM V LUB OIL PIPE COOLER REFER TO F i g 22 a 7 f O U T L O STRAINER OUT...
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Page 143: ...Y00R4782 Fig COOLING FRESH W A T E R P U M P REFER TO F i g 62...
Page 145: ...Y00R4782 Fig 31 mo z 4LHA ST DT Z E P C F W COOLER 4LHA ST DT Z E P 5 f fc f ui FLYWHEEL SIDE...
Page 149: ...Y00R4782 Q Q mMW 4LHA STE DTE P Fi g O O C S W PIPE 4LHA STE DTE P REFER TO F i g 3 1...
Page 155: ...Y00R4782 g g nm uy m 4LHA HT Z E P C S W PIPE 4LHA HT Z E P REFER TO F i g 32 11 12 SIED PART...
Page 157: ...Y00R4782 Fig o e nmiuy 4LHA ST DT Z E P O D C F W PI PE 4LHA ST DT Z E P...
Page 159: ...Y00R4782 Fig Q 7 JMP W7 I 4LHA HT Z E P O f C F W PIPE 4LHA HT Z E P REFER TO F i g 2 3...
Page 161: ...Y00R4782 Fi g Q O C S W STRAINER OPTIONAL c s w PUMP KINGSTON C O C K...
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Page 189: ...Y00R4782 Fig A Q miUy 4LHA ST DT Z E P f O FUEL PI PE 4LHA ST DT Z E P...
Page 193: ...Y00R4782 Fig C n B7 f 4LHA ST DT Z E P U U FUEL STRAINER 4LHA ST DT Z E P...
Page 195: ...Y00R4782 Fig K 1 TO7 i 4LHA HT Z E P w I FUEL STRAINER 4LHA HT Z E P REFER TO F i g 12...
Page 197: ...Y00R4782 Fig 52 OIL WATER SEPARATER OPTIONAL 19 mv t 9 14 F R O M FUEL TANK...
Page 203: ...Y00R4782 F i g O O P O W E R STEERING P U M P C F W P U M P...
Page 205: ...Y00R4782 Fig UU P O W E R S T E E R I N G C O O L E R T A N K 1 6...
Page 207: ...Y00R4782 57 ATFA f Fig O I ATF PIPE REFER TO F i g 5 6 FER TO F i g 5 5...
Page 211: ...Y00R4782 Fifl W O STARTING MOTOR REFER TO F i g 3...
Page 213: ...Y00R4782 GENERATOR REFER TO Fig 2...
Page 215: ...Y00R4782 Fig D I GENERATOR OPTIONAL REFER TO F i g 30 REFER TO F i g 60...
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Page 237: ...Y00R4782 Fig D GASKET SET OPTIONAL 1 A...
Page 302: ...Example of setup with HSW630A1 Hurth marine gear WATER INLET IS M l o 3 0 WATER INLET 2 3...
Page 303: ...Chapter 1 General 5 Dimensions i4LHA Series 4LHA STZE STZP 9 96 XVW 9 06 um 1 18...
Page 305: ...Chapter 1 General 5 Dimensions 4LHA Series 4LHA DTZE DTZP 9 96 XVW g oe nm 1 20...
Page 307: ...Chapter 1 General 5 Dimensions i4LHA Series 4LHA HTZE HTZP g 96 xvw S06NIW 1 22...
Page 317: ...Chapter 1 General 7 Electrical Diagrams m4LHA Series 4LHA STZE 1 30...
Page 318: ...Chapter 1 General 7 Electrical Diagrams 4LHA Series 4LHA DTZE 1 32...
Page 319: ...Chapter 1 General 7 Electrical Diagrams 4LHA Series 4LHA HTE HTZE Eng stop solenoid 1 33...
Page 473: ...Chapter 3 Fuel Injection Equipment 9 Tools 4LHA Serie t 3 2 51...
Page 507: ...Chapter 5 Lubrication System 1 Lubrication System 4LHA Serie 1 1 Construction...
Page 519: ...Chapter 6 Cooling Water System 1 Cooling Water System 4LHA Series Cylinder block...