Centurion 04791-0 - Page 15

Section 3 – Maintenance
CENTURION 3500 Home Standby Generator
3.1 CHECKING THE ENGINE OIL
LEVEL
For oil capacities and requirements, see “Engine Oil
Requirements,” Section 1.6.3. Check the engine
crankcase oil level weekly. To check the engine oil
level, proceed as follows (see Figure 3.1):
1. Remove the oil fill/dipstick cap and wipe the dip-
stick dry with a clean, lint-free cloth.
2. Install and tighten the oil fill/dipstick cap; then,
remove it again. The oil level should be at the dip-
stick “Full” mark.
3. If necessary, slowly add oil until it reaches the
dipstick “FULL” mark. DO NOT FILL ABOVE
THE “FULL” MARK.
Never operate the engine with the oil level
below the “Add” mark on the dipstick. Doing
this could damage the engine.
4. Install and tighten the oil fill/dipstick cap before
operating the engine.
3.2 CHANGING THE ENGINE OIL
AND/OR OIL FILTER
• Change the engine oil after the break-in period,
(see Section 2.10.1). Thereafter, change oil every
twelve months. Change the oil more frequently if
unit operates during extended power outages of
several days at a time, in dusty conditions or at
high ambient temperatures.
• Change the engine oil filter after the break-in peri-
od, and every twelve months thereafter.
To change the oil and/or oil filter, proceed as follows
(see Figure 3.1):
1. Run the engine until it is thoroughly warmed up
(at least five minutes) then shut OFF the engine.
2. Immediately after the engine shuts OFF, remove
the plug from the tube with a 5/16” allen wrench
and drain the oil into a suitable container.
Loosening the oil fill/dipstick cap will allow the
crankcase to drain faster.
3. After the oil has drained, replace the plug onto
the end of the oil drain tube.
4. With the oil drained, remove the old oil filter by
turning it counterclockwise. Place a towel under-
neath to catch excess oil.
5. Apply a light coating of clean engine oil to the gas-
ket of the new filter. Fill the filter until saturated
with clean oil.
6. Screw the new filter on by hand until its gasket
lightly contacts the oil filter adapter. Then, tight-
en the filter an additional 3/4 to one turn.
7. Remove the oil fill/dipstick cap and wipe the dip-
stick dry with a clean, lint-free cloth. This will be
used later to check the oil level.
8. Slowly add the proper type and amount of rec-
ommended oil (see Section 1.6.3). Periodically
use the dipstick to check the oil level and contin-
ue to fill the crankcase until the oil reaches the
dipstick “Full” mark. DO NOT FILL ABOVE THE
“FULL” MARK.
9. Install and tighten the oil fill/dipstick cap before
operating the engine.
10. Start the engine and check for leaks.
NOTE:
Check the oil level and fill to the “FULL” mark
after checking for leaks. The filter will retain some
oil.
!
Generac
®
Power Systems, Inc. 13
L
O
O
S
E
N
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PERFORM MORE OFTEN IN DUSTY CONDITIONS
INSPECT & CLEAN
PLUGS EVERY 500
0D4511
0D9723
070185
072347
IF NECESSARY
5W-30 OR 5W-20
SAE VISCOSITY
SAE 30 OR 10W-30
0.8L/0.84QT
HOURS. REPLACE PLUGS
REPLACEMENT INFORMATION
API SERVICE CLASSIFICATION SF, SG OR SH
WHEN SERVICE OR PARTS ARE NEEDED IN
THE USA OR CANADA, CONTACT THE GENERAC
SERVICE LOCATOR AT 1-800-333-1322.
TEMPERATURE
40˚F AND HIGHER
-20˚F TO 40˚F
SPARK PLUGS:
OIL FILTER P/N:
PREFILTER P/N:
AIR FILTER P/N:
SPARK PLUG P/N:
OIL CAPACITY WITH FILTER:
SERVICE ACCESS PA NEL
GENERATOR SHUTDOWN
INFORMATION SYSTEM
CHECK DAILY
CHANGE EVERY 100
EVERY 100 HOURS.
REPLACE ELEMENT
EVERY 250 HOURS.
HOURS. (OR ANNUALLY)
CLEAN PREFILTER
MAINTENANCE SCHEDULE
LOW OIL PRESSURE
6 FLASHES = UNDERSPEED
OIL & OIL FILTER:
LOCATED BEHIND PANEL
OIL LEVEL:
*
AIR FILTER:
FAULTSIGNAL
2 FLASHES =
3 FLASHES =
5 FLASHES =
4 FLASHES =
OVERCRANK
OVERSPEED
HIGH OIL TEMP
}
*
*
*
MANUAL
SEE OWNERS
FOR FURTHER
EXPLANATION
PULL TO DISCONNECT
GENERATOR POWER
CONTROL CENTER
AUTO
DETAILS
OFF
SEE CHART
BELOW FOR
DOWN
INDICATOR
SHUT
MAN.
GREEN BAR INDICATES TRIP
PUSH TO RESET
GENERATOR
POWER
FUSE
7.5A
Figure 3.1 – Oil Maintenance Features
Dipstick & Oil Fill
Oil Drain
(Underneath)
Oil Filter