Husqvarna 420 GN - Manual (Page 12)

Charging a Battery
Your generator has the capability of recharging a discharged
12 Volt automotive or utility style storage battery. DO NOT
use the unit to charge any 6 Volt batteries. DO NOT use the
unit to crank an engine having a discharged battery.
To recharge 12 Volt batteries, proceed as follows:
1. If necessary, clean battery posts or terminals.
2. Check fluid level in all battery cells. If necessary, add
ONLY distilled water to cover separators in battery
cells. DO NOT use tap water.
3. If the battery is equipped with vent caps, make sure
they are installed and are tight.
4. Connect battery charge cable connector plug to the
12 Volt DC panel receptacle.
5. Connect battery charge cable clamp with red handle to
battery post or terminal indicated by Positive, POS or (+).
6. Connect battery charge cable clamp with black handle
to battery post or terminal indicated by Negative, NEG,
or (–).
7. Start generator as described in Starting The Engine. Let
the engine run while battery recharges.
8. When battery has charged, shut down engine as
described in Stopping The Engine.
NOTE: Use an automotive hydrometer to test battery state of
charge and condition. Follow the hydrometer manufacturer’s
instructions carefully. Generally, a battery is considered to be
at 100% state of charge when specific gravity of its fluid (as
measured by hydrometer) is 1.260 or higher.
Cold Weather Operation
Under certain weather conditions (temperatures below 40°F
[4°C] combined with high humidity), your generator may
experience icing of the carburetor and/or the crankcase
breather system. To reduce this problem, you need to
perform the following:
1. Make sure generator has clean, fresh fuel.
2. Open fuel valve (turn valve to open position).
3. Use SAE 5W-30 oil (synthetic preferred, see engine
operator’s manual).
4. Check oil level daily or after every eight (8) hours of
operation.
5. Maintain generator following maintenance schedule in
engine operator’s manual.
6. Shelter unit from elements.
12 www.usa.husqvarna.com
DANGER
Storage batteries give off explosive hydrogen gas
during recharging.
Hydrogen gas stays near battery for a long time
after battery has been charged.
Slightest spark will ignite hydrogen and cause
explosion.
You can be blinded or severely injured.
Battery electrolyte fluid contains acid and is
extremely caustic.
Contact with battery fluid will cause severe
chemical burns.
• DO NOT allow any open flame, spark, heat, or lit cigarette during
and for several minutes after charging a battery.
• Wear protective goggles, rubber apron, and rubber gloves.
Positive Negative