Use and Care Manual
Maintenance
32 Owner’s Manual for Spark-Ignited Stationary Generators
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: T
he 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 Schedule B Maintenance
Item Locations.
Schedule B Maintenance Item Locations
NOTE: The viewing window side of the enclosure is
identified as the rear of the generator set. The right and
left sides are identified by standing at the rear and look-
ing towards the front of the unit.
Model 48 kW
Engine 4.5L
Coolant drain hose
R
Radiator fill cap
T
Coolant overflow reservoir
R
Spark plugs
L
R = Right Side L = Left Side T = Top
Draining and Flushing Coolant System
(000139)
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 the coolant system:
1. Disco
nnect and empty coolant overflow reservoir.
2. Install an
d connect coolant overflow reservoir.
3. Rotate
and remove plastic cover at top of enclo-
sure.
4. Slowly unscre
w radiator cap.
5. Locate drain
screw at bottom left side of radiator.
NOTE: If
unit is not equipped with drain hose, install suit-
able length of rubber hose to drain screw.
6. See Figure 5-13. Rotate hex fitting to open drain
screw (A).
RADIATOR
DRAIN
001493
A
Figure 5-13. Radiator Drain Location
NOTE: Drain hose removed for illustration purpos
es.
7. Remov
e coolant drain hose from holding clamp.
8. Use
wrench to hold hex on coolant hose fitting (to
prevent rotation), and use second wrench to
remove drain plug.
9. Dr
ain coolant into a suitable container.
10. Insta
ll drain plug at end of coolant drain hose.
11. Insta
ll coolant drain hose in holding clamp.
12. Rotate hex
fitting to close radiator drain screw.
13. Ob
tain recommended quantity and type of coolant.
See Coolant Water Treatment.
Model (kW) Engine
System Coolant
Ca
pacity
48 4.5L 10 qt (9.5 L)
14. See Figure 5-14. Insert funnel into filler neck of
radiator (B). See Draining and Flushing Coolant
System.
001497
B
Figure 5-14. Filling Coolant System
15. Slowly
pour coolant into filler neck until radiator is
full.
16. Insta
ll radiator cap.