Operation and maintenance manual

SEBU8601-01 97
Maintenance Section
Cooling System Coolant Level - Check
5. Clean the cooli
ng system filler cap and inspect the
gasket. If the gasket is damaged, discard the old
filler cap and install a new filler cap. If the gasket
is not damaged
,useasuitablepressurizingpump
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.
6. Start the en
gine. Inspect the cooling system for
leaks and for correct operating temperature.
i03576064
Cooling System Coolan t Level
- Check
Engines With a Coolant Recovery
Tank
Note: The cooling system may not have been
provided 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.
NOTICE
When any servicing or repair of the engine cooling
system is performed the procedure must be performed
with the engine on level ground. This will allow you to
accurately check the coolant level. This will also help
in avoiding the risk of introducing an air lock into the
coolant system.
1. Observe the coolant level in the coolant recovery
tank. Maintain the coolant level to “COLD FULL”
mark on the coolant recovery tank.
Pressurized System: Hot coolant can cause seri-
ous burns. To open the cooling system fille r cap,
stop the engine and wait until the cooling system
components are 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 correc
t coolant mixture into the tank.
Refer to the Operation and Maintenance Manual,
“Refill Capacities and Recommendations” for
information o
nthecorrectmixtureandtypeof
coolant. Refer to the Operation and Maintenance
Manual, “Refill Capacities and Recommendations”
for the cooli
ng system capacity. Do not fill the
coolant recovery tank above “COLD FULL” mark.
g00103639
Illustration 56
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 W ithout a Coolant
Recovery Tank
Check the coolant level when the engine is stopped
and cool.
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0285520
Illustration 57
Cooling system filler cap