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6
Maintenance Level 1 Level 2 Level 3 Level 4
Tasks
Recom- Task Required Task Required Task Task
mended Comp. to be done Comp. to be done Comp. Required Comp.
to be done (Date- 3 months/ (Date- Semi- (Date- to be done (Date-
monthly/ Initials) Break-in Initials) annually/ Initials) Annually/ Initials)
10 hrs. 30 hrs. 50 hrs. 100 hrs.
1. Disable the unit from
operating per the first page
warning.
2. Check the engine oil level.
Adjust as necessary.
3. Check the engine coolant
level. Adjust as necessary.
4. Check the engine coolant
thermal protection level.
Correct as necessary.
5. Check the natural gas
delivery system. Tighten
connections as necessary.
6. Check the air inlets and
outlets for debris. Clean
as necessary.
7. Check the battery
electrolyte level if
accessible. Adjust as
necessary.
8. Check the battery posts,
cables, and charger for
loose connections,
corrosion, and proper
operation. Correct as
necessary.
9. Check the unit wiring for
loose connections,
corrosion, and damage.
Correct as necessary.
10. Check the engine
accessory drive belts for
wear, weather cracking
and damage. Replace as
necessary.
11. Visually inspect the unit
looking for leaks, wear or
damage, loose connections
or components, and
corrosion. Correct as
necessary.
12. Test the engine and transfer
switch safety devices.
Correct and/or adjust as
necessary.
6.8L GAS SERVICE RECOMMENDATIONS