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2.7
BATTERY INSTALLATION
2.7.1
RECOMMENDED BATTERY
Install a battery that meets the following requirements:
• The battery must be a 12-volt, automotive-type storage battery.
• Use a battery with minimum ratings of 70 amp-hours and 600
cold-cranking amps.
If the battery is to be used to power other vehicle accessories,
as well as to start the generator, a battery with a larger capacity
may be necessary.
2.7.2
BATTERY CABLES
Using battery cables that are too long or too small in diameter
may cause a drop in voltage, which causes starting problems. For
the best cold weather starting, the voltage drop between battery
terminals and the generator connection point should not exceed
0.12 volts per 100 amps of cranking current.
The generator is rated at about 160 DC amps of cranking current
to operate the starter and glow plugs.
Select battery cables based on (a) cable length and (b) prevail-
ing ambient temperatures. Generally, the longer the cable and the
colder the weather, the larger the cable size must be, as shown in
the chart.
CABLE LENGTH in Feet (meters)
0 to 10 (0 to 3)
11 to 15 (3.4 to 4.5)
16 to 20 (4.5 to 6)
*For warm weather, use No. 2 cable up to 20 feet.
Figure 2.18 – Installation With Isolation Receptacle
NOTE:
CABLE SIZE
2*
0
000
2.7.3
BATTERY CABLE CONNECTIONS
1.
Connect the battery cable from the battery post or terminal,
indicated by a POSITIVE, POS, or (+), to the insulated lug on
the unit frame (Figure 2.19).
Check to be sure the cable boot for the positive cable has been
installed.
2.
Connect the battery cable from the battery post, indicated by
a NEGATIVE, NEG, or (-), to the vehicle frame ground connec-
tion (Figure 2.19).
3.
Connect a cable from the vehicle frame ground to the negative
post on the generator frame.
4.
Connect cables so the connectors are clean and tight.
Figure 2.19 – Connecting Battery Cables
Installation
NOTE:
33
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