Operation and maintenance manual

SEBU7833-03 59
Maintenance Section
Cooling System Coolant Extender (ELC) - Add
i02335364
Coo ling Sys tem Coolant
Extender (ELC
)-Add
The Perkins Extended Life Coolant (ELC) does not
need the frequent addition of Supplemental Coolant
Additives (SC
A) that are associated with conventional
coolants. The Extender only needs to be added once.
Check the coo
ling system only when the engine is
stopped and cool.
1. Loosen the co
oling system filler cap slowly in
order to relieve pressure. Remove the cooling
system filler cap.
2. It may be necessary to drain enough coolant from
the cooling system in order to add the Extender.
3. Add Extender according to the requirements for
your engine’s cooling system capacity. Refer to
this Operat
ion and Maintenance Manual, “Refill
Capacities” in the Maintenance Section for the
capacity of the cooling system for your engine.
Refer to thi
s Operation and Maintenance Manual,
“Fluid Recommendations” information for the
Perkins ELC Extender.
4. Clean the cooling system filler cap and inspect the
gasket. If the gasket is damaged, discard the old
filler cap a
nd install a new filler cap. If the gasket
is not damaged, use a suitable pressurizing pump
in order to pressure test the filler cap. The correct
pressure
is stamped on the face of the filler cap. If
the filler cap does not retain the correct pressure,
install a new filler cap.
i02335378
Cooling System Coolan t Level
- Check
Engines With a Coolant Recovery
Tank
Note: The cooling system may not have been
provid
ed by Perkins. The procedure that follows
is for typical cooling systems. Refer to the OEM
information for the correct procedures.
Check the coolant level when the engine is stopped
and cool.
1. Observe the coo
lant level in the coolant recovery
tank. Maintain the coolant level to “COLD FULL”
mark on the coolant recovery ta nk.
Pressurized
System: Hot coolant can cause seri-
ous burns. To open the cooling system filler cap,
stop the engine and wait until the cooling system
components a
re cool. Loosen the cooling system
pressure cap slowly in order to relieve the pres-
sure.
2. Loosen filler cap slowly in order to relieve any
pressure. Remove the filler cap.
3. Pour the correct coolant mixture into the tank.
Refer to the Operation and Maintenance Manual,
“Refill Capa
cities and Recommendations” for
information on the correct mixture and type of
coolant. Refer to the Operation and Maintenance
Manual, “R
efill Capacities and Recommendations”
for the cooling system capacity. Do not fill the
coolant recovery tank above “COLD FULL” mark.
g00103639
Illustration 31
4. Clean filler cap and the receptacle. Reinstall the
filler cap and inspect the cooling system for leaks.
Note: The coolant will expand as the coolant heats
up during normal engine operation. The additional
volume will be forced into the coolant recovery tank
during engine operation. When the engine is stopped
and cool, the coolant will return to the engine.
Engines Without a Coo lant
Recovery Tank
Check the coolant level when the engine is stopped
and cool.