Firman H08053 Owner's Manual page 27

4.Using oil funnel, slowly pour contents of
provided oil bottle into oil fill opening to the
"H" mark on dipstick. Be careful do not overfill.
Overfilling with oil could cause the engine to
not start or hard starting.
English
We consider the first 5 hours of run time to be the
break-in period for the unit. During the break in
period stay at or below 50% of the running watt
rating and vary the load occasionally to allow stator
windings to heat and cool. Adjusting the load will
also cause engine speed to vary and help seat
piston rings.
Low Oil Shutdown
The unit is equipped with a low oil shutdown.If the
oil level becomes lower than required,the sensor will
activate a warning device or stop the engine.
If generator shuts off and the oil level is within
specifications, check to see if generator is sitting at
an angle that forces oil to shift. Place on an even
surface to correct this. If engine fails to start, the oil
level may not be sufficient to deactivate low oil level
switch. Make sure the sump is completely full of oil.
Customer Service: 1-844-FIRMAN1Page 17