Westinghouse WGen12000DF, Service Manual

26 | Westinghouse Outdoor Power Equipment, LLC

MAINTENANCE

BATTERY MAINTENANCE

The battery gives off explosive hydrogen gas during 

normal operation. A spark or flame can cause the battery 

to explode with enough force to kill or seriously hurt you. 

Wear protective clothing and a face shield, or have a 

skilled technician perform battery maintenance. 

Burn hazard. The battery contains sulfuric acid 

(electrolyte) which is highly corrosive and poisonous. 

Wear protective clothing and eye protection when 

working near the battery. Keep children away from the 

battery. 

NEVER smoke or work near sparks or other sources 

of ignition. NEVER touch both battery terminals at the 

same time with your hand or any non-insulated tools. If 

battery acid contacts skin or clothing, flush immediately 

with water and neutralize with baking soda. 

The battery shipped with the generator has been fully 

charged. A battery may lose some charge when not in use 

for prolonged periods of time.  

Note: 

Once started, the generator will charge the battery 

after 30–60 minutes of use.  

When the generator is not running, the included trickle 

charger can remain connected and will maintain the battery 

for an indefinite period of time. A red light on the charger 

indicates charging in progress. A green light indicates 

charging complete. Charge in a dry location. 

1. 

Plug the charger into the battery charging port on the 

control panel. 

2. 

Plug the wall receptacle end of the battery charger into 

a 120 Volt AC wall outlet.

BATTERY REPLACEMENT

Battery posts, terminals contain lead and lead 

compounds. Wash hands after handling. 

1. 

Remove the two battery plate bolts and battery plate. 

Tilt the battery forward and remove. 

2. 

Disconnect the negative (-) cable (black boot) from the 

negative (-) battery post.  

3. 

Disconnect the positive (+) battery cable (red boot) from 

the positive (+) battery post.  

NOTICE

Always connect the cables in the following sequence to 

avoid possible shock.

4. 

On the replacement battery, connect the positive 

(+) battery cable (red boot) to the battery positive (+) 

terminal. Secure the boot over the battery post. 

5. 

Connect the negative (-) battery cable (black boot) to 

the negative (-) positive terminal. Secure the boot over 

the battery post.

6. 

Install the battery in the battery tray. Install the battery 

plate and bolts. Tighten the bolts securely. 

NOTICE

Dispose of the used battery properly according to the 

guidelines established by your local or state government.

STORAGE

Proper storage preparation is required for trouble-free 

operation and generator longevity.  

NOTICE

Gasoline stored for as little as 30 days can deteriorate, 

causing gum, varnish, and corrosive buildup in fuel lines, 

fuel passages, and the engine. This corrosive buildup 

restricts the flow of fuel, which can prevent the engine 

from starting after a prolonged storage period. The use 

of fuel stabilizer significantly increases the storage life of 

gasoline. Full-time use of fuel stabilizer is recommended. 

Follow the manufacturer’s instructions for use. 

STORAGE TIME

RECOMMENDED PROCEDURE

Less than 1 month

No service required.

2 to 6 months

Fill with fresh gasoline and add 

gasoline stabilizer. Drain the 

carburetor float bowl.

6 months or longer

Drain the fuel tank and carburetor 

float bowl.