40
MAINTENANCE
12 Volt BattErY
MaintEnanCE (iF EquiPPED)
The generator’s 12 Volt battery (if equipped) is
a sealed-for-life type that requires no regular
maintenance. It is automatically charged whenever the
generator is running.
The battery will self-discharge slowly when not in use
and after some time it may have insufficient charge
to start the generator; in such an event, the generator
can be started manually (see Manually Starting a
Generator on page 21).
!
DANGER
Wet cell batteries produce explosive
hydrogen gas while charging. If ignited,
the hydrogen gas mixture can explode
the battery and cause serious injury
or blindness. Only charge a battery in
a well-ventilated area away from any
sources of ignition such as sparks,
open flames, matches, cigarettes, Cb
radios and mobile phones.
The electrolyte fluid inside a battery
contains highly corrosive sulphuric
acid, which upon contact with the
skin or eyes can cause severe burns
or blindness. Always wear protective
glasses and clothing – including
gloves – when working on a battery.
Any electrolyte spill should be
thoroughly flushed clean with water.
Charging the battery
When the generator is not in use, its 12 Volt battery
can be charged using a mains-powered 12 Volt battery
charger
.
Tools required (not included) – 10 mm spanner and
mains-powered 12 Volt battery charger.
1. Ensure the generator is stopped and the engine
control switch is in the STOP position.
2. Allow the generator to cool down if it has been
running.
!
WARNING
NEVER touch both battery terminals
simultaneously.
NEVER place a tool or other metal
object across both battery terminals.
NEVER place a tool or other metal
object between either of the battery
terminals and any part of the
generator.
3. Disconnect the negative (-) battery cable (black
boot) from the negative (-) terminal on the battery.
4. Disconnect the positive (+) battery cable (red boot)
from the positive (+) terminal on the battery.
5. Unscrew the nuts from the battery clamp by
turning them anti-clockwise with the spanner and
then remove the clamp (see Figure 8).
6. Remove the battery from the generator taking
care not to touch the battery terminals against the
generator’s frame or any other metal surface. Keep
the battery upright at all times.
7. Move the battery to a well-ventilated work bench
or other suitable location adjacent to the battery
charger.
8. Charge the battery in accordance with the battery
charger’s instructions.
9. When the battery has finished charging,
disconnect it from the battery charger and then
re-install it on the generator.
10. Re-fit the battery clamp and then tighten the
nuts evenly by screwing them clockwise with the
spanner.
11. Connect the positive (+) battery cable (red boot) to
the positive (+) terminal on the battery.
12. Connect the negative (-) battery cable (black boot)
to the negative (-) terminal on the battery.
Replacing the battery
The procedure for replacing the generator’s 12 Volt
battery with a new one is essentially the same as
that described in the preceding section, except a new
battery should be re-installed at step 9 instead of the
old one.
Summary of Contents for WHXC3750
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