DC
ELECTRICAL
SYSTEM
BAmRY
MAINTENANCE
Review
the
manufacturer's recommendations and then estab-
lish a systematic maintenance schedule for your engine's
starting batteries and house batteries.
o Monitor your voltmeter for proper charging during
engine operation.
o Check
the
electrolyte level and specific gravity with a
hydrometer.
o Use only distilled water to bring electrolytes to a proper
level.
o Make certain that battery cable connections are clean
and tight
to
the battery posts (and
to
your engine).
o Keep your batteries clean and free
of
corrosion.
A
WARNING:
Sulfuric
acid
in
lead
batteries
can
cause
severe
bums
on
skin
and
damage
clothing.
Wear
protective
gear.
GLOW
PLUGS
The glow plug
is
a small heater installed
in
each pre-com-
bustion chamber. They run off the engine starting battery
and
become
red
hot
when activated.
The
glow plugs are wired through the preheat solenoid.
When
PREHEAT is pressed at the control panel this solenoid
should
"click"
on
and the glow plug should begin to get hot.
Glow plugs can
be
checked by unscrewing and holding
them
against a good ground (engine block) and turning them on.
The tip should glow red hot.
You
can also use an ammeter to
test the power drain (8 to 9 amps per plug)
or
an
ohmmeter
to test resistance
(1.1
to 1.2 ohms).
A
WARNING:
These
glow
plugs
will
become
very
hot
to
the
touch.
Be
careful
not
to
bum
your
fingers
when
testing
plugs.
.
Reinstall the plugs
in
the engine and test them again. The
plugs should get very hot (at the terminal end) within
20
to
25 seconds. If the plugs
don't
heat up quickly, check for a
short circuit.
When
installing the glow plugs, use anti-seize compound
on
the threads.
A
CAUTION:
Do
not
keep
glow
plugs
on
for
more
than
30
seconds.
PREHEAT
GLOW
PLUGS
TYPICAL
GLOW
PWG
Engines
& Generators
59
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