Generac Power Systems RG02224 Owner's Manual page 39

5. Install air cleaner cover (E) over threaded rod. In-
stall flat washer, lock washer and wing nut. Tighten
wing nut until snug.
Final Instructions
If only performing Schedule A maintenance procedures,
proceed as follows:
1. Install battery negative cable (black) onto battery
negative (-) terminal.
2. Install left and right side access panels. See
cess Panels.
3. See Return To Service.
Schedule B Maintenance
NOTE: Perform Schedule B maintenance every two
years or after 250 hours of service, whichever comes first.
Before proceeding below, first perform all tasks listed
under Schedule A Maintenance.
NOTE: The 2.4L (32 kW) unit is depicted in the artwork
used in this manual. For the general location of compo-
nents in all other models, see
Item Locations.
Draining and Flushing Coolant System
WARNING
Risk of burns. Allow engine to cool before
draining oil or coolant. Failure to do so could
result in death or serious injury.
Proceed as follows to drain and flush coolant system:
1. Disconnect and empty coolant overflow reservoir.
2. Install and connect coolant overflow reservoir.
3. Rotate and remove plastic cover at top of
enclosure.
4. Slowly unscrew radiator cap.
5. See Figure 5-14. Locate drain valve (A) at bottom
left side of radiator.
Figure 5-14.
A
Figure 5-14. Drain Valve
6. Remove coolant drain hose from holding clamp.
Spark-Ignited Stationary Generators Owner's Manual
Ac-
Schedule B Maintenance
(W000139)
RADIATOR
DRAIN
001493
7. Use wrench to hold hex on hose fitting (to prevent
rotation), and use second wrench to remove drain
plug.
8. Rotate hex fitting to open drain valve.
9. Drain coolant into a suitable container.
10. Install plug at end of drain hose.
11. Install drain hose in holding clamp.
12. Rotate hex fitting to close radiator drain valve.
13. See Figure 5-15. Insert funnel into filler neck of ra-
diator (B).
Figure 5-15.
B
Figure 5-15. Filling Radiator
14. Fill radiator with demineralized or distilled water
(and a chemical cooling system flushing agent as
needed subject to conditions). Tap or hard water
causes scale deposits, which reduces cooling effi-
ciency and raises internal temperatures, possibly
leading to engine damage.
System Coolant Capacity
22/27
Model
kW
Engine
2.4 L
2.0 gal
(7.6 L)
2.5 gal
●
(9.5 L)
15. Install radiator cap.
16. Press MANUAL on control panel to start engine. A
blue LED will illuminate to confirm system is in
MANUAL.
17. Allow engine to run until thermostat opens, as indi-
cated by heating of top radiator hose.
18. Inspect coolant hoses, cooling system, and engine
for leaks. Tighten clamps and address leaks, if
necessary.
19. Press OFF on control panel to shut engine down.
20. Wait for engine to cool.
Maintenance
001497
25/30 32/38 36/45
60 kW
kW kW kW
1.5 L 2.4 L 2.4 L 2.4 L
●
● ● ●
39