Kohler EKOZD Series Service page 108

19. Check that the generator set is OFF.
20. Reconnect the generator set engine starting
battery, negative (- ) lead last.
21. Reconnect the power to the battery charger, if
equipped.
6.4 Check and Fill Coolant
Note: Do not add coolant to a hot engine. Adding
coolant to a hot engine can cause the cylinder
block or cylinder head to crack. Wait until the
engine has cooled.
Maintain the coolant level in the coolant recovery tank at
approximately 1/4 full. Before filling the cooling system,
close all petcocks and tighten all hose clamps. Use a
solution of 50% ethylene glycol and 50% clean,
softened water to inhibit rust/corrosion and prevent
freezing. Add coolant, as necessary, to the coolant
recovery tank. Periodically check the coolant level on
closed systems by removing the pressure cap. Do not
rely solely on the level in the coolant recovery tank. Add
fresh coolant until level is just below the overflow tube
opening.
Note: Coolant solution. A coolant solution of 50%
ethylene glycol provides freezing protection to
- 37_C (- 34_F)
129C (265F). A coolant solution with less than
50% ethylene glycol may not provide adequate
freezing and overheating protection. A coolant
solution with more than 50% ethylene glycol can
cause engine or component damage. Do not use
alcohol or methanol antifreeze or mix them with
the specified coolant.
manufacturer's operation manual for engine
coolant specifications.
Note: Pay special attention to the coolant level. After
the coolant drains, allow time when refilling the
coolant for a complete refill of the engine water
jacket. Check the coolant level as prescribed in
the Prestart Checklist.
NOTICE
Saltwater damage. Saltwater quickly deteriorates metals.
Wipe up saltwater on and around the generator set and
remove salt deposits from metal surfaces.
Bleed Procedure (14- 24EKOZD & 12- 20.5EFKOZD
Models)
1. Remove the coolant fill cap. See Figure 1-2 for
location.
108 Section 6 Cooling System
and overheating protection to
Consult the engine
Note: For 20/23EKOZD and 21/24EKOZD 60 Hz
models, proceed to Step 2. For all other models,
proceed to Step 6.
2. Slowly fill the coolant system until observing
coolant at the first bleed point (lowest port) with the
plug removed. See Figure 6-16.
3. After seeing coolant, use a funnel to fill the coolant
at this port until full. Cap this port.
4. Slowly fill the coolant system until observing
coolant at the second bleed point with the plug
removed. See Figure 6-16.
5. After seeing coolant, use a funnel to fill the coolant
at this port until full. Cap this port.
6. Slowly fill the coolant system until observing
coolant at the third bleed point (highest port) with
the plug removed. See Figure 6-16.
7. After seeing coolant, use a funnel to fill the coolant
at this port until full. Cap this port.
8. Fill the coolant system at the filler neck to just below
the overflow tube opening.
9. Lightly squeeze the end coolant hose to ensure that
any loose air pockets are bled from the system.
10. Replace the coolant fill cap.
Top View
3
st
1. 1 bleed point (only available on 20/23EKOZD and
21/24EKOZD 60 Hz models)
nd
2. 2 bleed point (only available on 20/23EKOZD and
21/24EKOZD 60 Hz models)
rd
3. 3 bleed point
Figure 6-16 Bleed Point Locations
Engine
1
2
TP-6953 7/19