Engine Maintenance; Checking Oil Level; Changing The Oil; Replacing The Spark Plug - Generac GP Serie Manuel Du Propriétaire

Maintenance

3.3.3 ENGINE MAINTENANCE


When working on the generator, always
disconnect negative cable from battery. Also
disconnect spark plug wire from spark plug
and keep wire away from spark plug.

3.3.4 CHECKING OIL LEVEL

See the "Before Starting the Generator" section for information on
checking the oil level. The oil level should be checked before each
use, or at least every eight hours of operation. Keep the oil level
maintained.

3.3.5 CHANGING THE OIL

Change the oil after the first 30 hours of operation. Change the
oil every 100 hours or every season thereafter. If running this
unit under dirty or dusty conditions, or in extremely hot weather,
change the oil more often.
Hot oil may cause burns. Allow engine to

cool before draining oil. Avoid prolonged
or repeated skin exposure with used oil.
Thoroughly wash exposed areas with soap.
Use the following instructions to change the oil while the engine
is still warm:
• Clean area around oil drain plug.
• Remove oil drain plug from engine and oil fill plug to drain oil
completely into a suitable container.
• When oil has completely drained, install oil drain plug and
tighten securely.
• Fill oil sump with recommended oil. (See "Before Starting the
Generator" for oil recommendations).
• Wipe up any spilled oil.
• Dispose of used oil at a proper collection center.

3.3.6 REPLACING THE SPARK PLUG

Use Champion RC14YC spark plug or equivalent. Replace the
plug once each year. This will help the engine start easier and
run better.
1. Stop the engine and pull the spark plug wire off of the spark
plug.
2. Clean the area around the spark plug and remove it from the
cylinder head.
3. Set the spark plug's gap to 0.70-0.80 mm (0.028-0.031 in.).
Install the correctly gapped spark plug into the cylinder head
(Figure 17).
12
Figure 17 - Spark Plug Gap
3.3.7 BATTERY REPLACEMENT
The battery shipped with the generator has been fully charged.
A battery may lose some of its charge when not in use for
prolonged periods of time. If the battery is unable to crank
the engine, plug in the 12V charger included in the accessory
box (see the Charging a Battery section). RUNNING THE
GENERATOR DOES NOT CHARGE THE BATTERY.
The NEGATIVE battery terminal should:

1. Always be DISCONNECTED FIRST.
2. Always be CONNECTED LAST.
Figure 18 - Battery Connections
NEGATIVE BATTERY
CABLE (BLACK)
SCREW
NOTE:
(BLACK)
NUT
LOCK WASHER
FLAT WASHER
CABLE BOOT
POSITIVE BATTERY
CABLE (RED)