Product Manual

3-1
3. Periodic Maintenance
Periodic maintenance is essential for top perfor-
mance and long genset life. Use Table 3-1 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 8-1).
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 au-
thorized Onan dealer.
TABLE 3-1. PERIODIC MAINTENANCE SCHEDULE
MAINTENANCE FREQUENCY
MAINTENANCE
PROCEDURE
Every
Day or
Every 8
Hours
After First
20 Hours
Every
Month
Every 50
Hours
Every
150
Hours
Every
250
Hours
Every
450
Hours
P
a
g
e
General Inspections X 3-2
Check Engine Oil Level X 3-3
Clean and Check Battery X
3
3-5
Clean Spark Arrestor X 3-6
Change Engine Oil X
1
X
2, 3, 4
3-4
Replace Air Filter Element X
2
3-5
Clean Engine Cooling Fins X
2
−
Replace Spark Plug X
5
3-6
Replace Fuel Filter X
5, 6
−
Adjust Valve Lash X
6
−
Clean/Replace Cylinder Head 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).
Redistribution or publication of this document
by any means, is strictly prohibited.