Product Manual

15
Periodic Maintenance
Periodic maintenance is essential for top perfor-
mance and long genset life. Use Table 4 as a guide
for normal periodic maintenance. In hot and dusty
environments some maintenance procedures
should be performed more frequently, as indicated
by the footnotes in the table. Keeping a log of main-
tenance performed and hours run will help you keep
genset maintenance regular and provide a basis for
supporting warranty claims (Page 33).
Maintenance, replacement or repair of emission
control devices and systems may be performed by
any engine repair establishment or individual. How-
ever, warranty work must be completed by an
authorized Onan dealer.
TABLE 4. PERIODIC MAINTENANCE SCHEDULE
MAINTENANCE
PROCEDURE
MAINTENANCE FREQUENCY
Every Day
or Every 8
Hours
After First
20 Hours
Every
Month
Every 50
Hours
Every 150
Hours
Every 450
Hours
P
a
g
e
General Inspections X 16
Check Engine Oil Level X 17
Clean and Check Battery X
3
19
Clean Spark Arrestor X 21
Change Engine Oil & Oil Filter X
1
X
2, 3, 4
18
Replace Air Filter Element X
2
19
Replace Spark Plugs X
5
20
Clean Engine Cooling Fins X
2
−
Replace Fuel Filter X
5, 6
−
Adjust Valve Lash X
6
−
Clean or Replace Cylinder Heads X
6
−
1 − As a part of engine break-in, change the engine oil after the first 20 hours of operation.
2 − Perform more often when operating in dusty environments.
3 − Perform more often when operating in hot weather.
4 − Perform at least once a year.
5 − Perform sooner if engine performance deteriorates.
6 − Must be performed by a qualified mechanic (authorized Onan dealer).