12
OPM-138/B
ENGINE CARE
MAINTENANCE SCHEDULE
If major engine service or repair is required, contact an
authorized
engine service center. The manufacturer of these engines
has
established an excellent world-wide engine service
organization.
Engine service is very likely available from a nearby
authorized dealer
or distributor.
CHECKING THE OIL LEVEL
The oil level must always be checked before the engine is
started. Refer to page 6 of this manual for instructions on
checking the oil level. Take care to remove any dirt or debris
from around the oil plug before removing. Be sure the oil
level is maintained.
CHANGING THE OIL
Refer to the Maintenance Schedule Chart for required oil
change intervals.
A. Start the engine and warm it up, stop the engine and
remove the spark plug wire to prevent it from
accidentally being started.
B. This engine has an oil drain valve for your convenience.
Attach a neoprene hose and drain the oil into an
approved
container.
11
3110-00
60706-239
ENGINE CARE
If major engine service or repair is required, contact
an authorized engine service center. The manufac-
turer of these engines has established an excellent
world-wide engine service organization. Engine ser-
vice is very likely available from a nearby authorized
dealer or distributor. Check the yellow pages of your
local telephone directory under “Engines-Gasoline”
for the closest engine repair center or ask the dealer
from whom you purchased the power plant.
1.
Change the oil
after the
fi
rst 5 hours of operation
and yearly or 100 hours thereafter under normal op-
erating conditions. Change engine oil every 50 hours
of operation if the engine is operated under heavy
load, or in high ambient temperatures.
a. Start the engine and warm it up, stop the engine
and remove the spark plug wire to prevent it
from accidently being started.
b. Remove oil drain plug at base of the engine
(Ref “B”) and drain the oil into an approved
container.
c. Remove the oil
fi
lter (Ref “C”) and dispose of it
properly.
d. Before you install the new oil
fi
lter, lightly lubri-
cate the oil
fi
lter gasket with fresh clean oil.
e. Install the oil
fi
lter by hand until the gasket
contacts the oil
fi
lter adapter, then tighten the oil
fi
lter 1/2 to 3/4 turns.
f. Replace oil drain plug.
g. Remove oil
fi
ller plug and re
fi
ll with new oil.
Refer to the table on page 5 for the proper
grade of oil based on your operating
temperature.
NOTE: This engine requires 78 to 80 ounces of oil
if it is completely drained. Use caution when re
fi
lling
the engine as some residual oil may have remained
in the engine. Always use the dipstick when
fi
lling
the engine with oil to prevent over
fi
lling.
h. Replace
fi
ller plug.
I. Start the engine and warm it up.
J. After warming up the engine, recheck the oil
level and re
fi
ll as necessary to bring it to the
proper level. See page 5 for proper oil level.
2.
Checking the Oil Level
: The oil level must al-
ways be checked before the engine is started. Take
care to remove any dirt or debris from around the
oil
fi
ll plug before removing. Be sure the oil level is
maintained. Fill to the “
FULL
” mark on the dipstick.
3.
Dual Element Air Filter
: Clean and/or replace
foam pre-cleaner and air
fi
lter annually or every 100
hours. Service more often under dusty conditions.
WARNING: EQUIPMENT DAMAGE
Never start or run the engine with the air filter re-
moved
a. Loosen snaps (Ref “A”) and remove cover.
Ref “B”
Maintenance Chart
First 5 Hours
x
Change oil
Every 8 Hours or Daily
x
Check engine oil level
x
Clean area around muffler and controls
Every 100 Hours or Annually
x
Clean or change air filter *
x
Clean pre-cleaner (if equipped) *
x
Change engine oil and filter
x
Replace spark plug
x
Check muffler and spark arrester
Every 250 Hours or Annually
x
Check valve clearance. Adjust if necessary.
Every 400 Hours or Annually
x
Change air filter
x
Replace fuel filter
x
Clean air cooling system *
x
Clean oil cooler fins *
*
In dusty conditions or when airborne debris is present, clean more often.
A
B
F
E
D
G
C
B
Alarms -
The display will start blinking and toggle to the first
parameter that is out of specification. The panel will remain
flashing until the fault condition returns to within the
acceptable range, see following table.
Acceptable Range
Frequency
57-63 Hz
Voltage
110VAC-130VAC
VAC1-VAC2
220VAC-260VAC
Battery -
When the unit is off, the YourGen meter will display the
hours continuously using a coin cell back-up battery inside
the meter. Once the unit is running, the meter will get
power from the main unit battery.
Voltage
3.0V DC
Battery Type
CR2032
Lifetime
10
Years
The battery has a 10 year lifetime, in the event you need to
change the battery, follow these instructions:
The battery is located in the control box near potentially live
AC terminals. To prevent electrocution while changing the
battery disable the unit by disconnecting the main battery,
spark plug wire and then open the receptacle panel. Locate
the backside of the YourGen meter. Gently pry the back
plate off using the slot located on top.
Once open, the battery will be located at the top. Using a
needle nose plier, carefully pull out the battery.
Replace the battery having the POSITIVE (+) side down.
Ensure the battery is secured between the battery
connections.
Replace the back plate of the meter and close the receptacle
panel using the screws to secure it. Reconnect the unit’s
main battery.
Battery
Install Battery Between These Two Points
