INSPECTION
AND
CLEANING
When inspecting the rotating rectifier assembly,
make sure diodes are free of dust, dirt and grease.
Excessive foreign matter on these diodes and heat
sinks will cause the diodes to overheat and will result
in their failure. Blow out the assembly periodically,
with filtered, low pressure air. Also check to see that
diodes and leadwires are properly torqued. The
diodes should be torqued to 30 in. Ib. (3.4 N*m) or
finger tight plus a-quarter
turn.
Blow dust out of
control panel.
BATTERIES
Check the condition of the starting batteries at least
every two weeks. See that connections are clean and
tight. A light coating of non-conductive grease will
retard corrosion at terminals. Keep the electrolyte at
the proper level above the plates by adding distilled
water. Check specif ic gravity, recharge if below
1.280.
CONNECTIONS
(Fuel,
Exhaust,
etc.)
Operator should periodically make a complete visual
inspection of the set while running at rated
load.
Some of the things to check for are as follows:
1.
Check all fuel and oil lines for possible leakage.
2.
Inspect exhaust lines and mufflers for possible
leakage and cracks.
3. Periodicallyordaily, drain moisture from conden-
sation traps.
4.
Inspect water lines and connections for leaks and
security.
5. Inspect electrical wires and connections for
security and fray damage.
If generator requires major repair or servicing, contact an authoriz-
ed Onan dealer or distributor.
TABLE
5.
OPERATOR
MAINTENANCE
SCHEDULE
MAINTENANCE ITEMS
OPERATIONAL HOURS
MAINTENANCE ITEMS 10 50
200 400
Inspect Complete Set
X
Check Engine Oil Level
X
Check Radiator Coolant Level
X
Check Fuel
xl
Check Governor Oil Level
X
Check Air Cleaner (Clean if
Required)
x2
Check Electrolyte Level of
Battery
x
Stop-Solenoid Linkage
x2
Adjust Fan Belt Tension x3
Change Governor Oil
X
Change Engine Oil & Filter
x2
Clean Fuel Lift Pump
X
Clean Sediment Bowl & Filter
X
Check Starter
x5
Clean & Inspect Battery
Charging (DC) Alternator
X
Check AC Generator
x6
Replace Fuel Filter Element x2
Replace Air Cleaner Element x2
Remove & Service Injectors
x4
Adjust Valve Clearances
X
Examine Water Filter Element X
ft
•4
xl - After every run.
x2 - Perform more often in extremely dusty conditions.
x3 - Adjust to
1/2-inch
(12.5 mm) depression between pulleys.
Refer to Ford engine manual.
x4 - Check for proper spray pattern, etc. Refer to the Ford manual.
x5 - Oil front bearing sparingly; check brushes.
x6 - Check brushes (if installed), replace if worn to 5/8-inch
(15.9 mm) or if damaged. DO NOT LUBRICATE.
31
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