Generac Power Systems 4G64-D-Z8, Service Manual, Page: 7 / 68

2.4 Liter Gas engine Service recommendations
Maintenance Tasks
Level 1 Level 2 Level 3 Level 4
Recommended
to be done
monthly/ 10 hrs.
Task
Comp.
(Date-
Initials)
Required to be
done 3 months/
Break-in /30 hrs.
Task
Comp.
(Date-
Initials)
Required to
be done Semi-
Annually/50 hrs.
Task
Comp.
(Date-
Initials)
Required to be
done Annually/
100 hrs.
Task
Comp.
(Date-
Initials)
14. Visually inspect the
unit looking for leaks,
wear or damage, loose
connections or compo-
nents, and corrosion.
Correct as necessary.
• • • •
15. Test the engine and
transfer switch safety
devices. Correct and/or
adjust as necessary.
•
16. Initiate an automatic
start and transfer of the
unit to site load and
exercise it for at least 1
hour looking for leaks,
loose connections
or components, and
abnormal operating
conditions. Correct as
necessary.
• •
17. Start and exercise the
unit at full rated load
(use a load bank if the
site load is not enough)
for at least 2 hours
looking for leaks, loose
connections or com-
ponents, and abnormal
operating conditions.
Correct as necessary.
•
18. Change the engine oil.
•
19. Replace the engine oil
filter(s).
• •
20. Replace the engine air
filter(s).
• •
21. Replace the engine
fuel filter(s) on diesel
engine driven units
and re-prime the fuel
system.
• •
22. Check the engine
spark plugs on gas
engine driven units.
Clean and re-gap orre-
place as necessary.
• •
23. Perform a 5 minute no-
load operational run of
the unit looking for any
post service problems.
• •
24. Return the unit to
standby setup for oper-
ation when required.
• • • •