CAT 3116 - Page 8

67
Maintenance Section
Cooling System Coolant (ELC) - Change
6. Pour coolant into the coolant recovery tank until
the coolant reaches the “COLD FULL” mark. DO
NOT fill the coolant recovery tank above the
“COLD FULL” mark.
7. Clean the cap for the coolant recovery tank.
Install the cap for the coolant recovery tank.
8. Start the engine. Inspect the cooling system for
leaks and for proper operating temperature.
Engines that are Not Equipped with a
Coolant Recovery Tank
NOTICE
Fill the cooling system no faster than 19 L (5 US gal)
per minute to avoid air locks.
1. Fill the cooling system with coolant/antifreeze.
Refer to the Operation and Maintenance
Manual, “Cooling System Specifications” topic
(Maintenance Section) for more information on
cooling system specifications. Do not install the
cooling system filler cap.
2. Start the engine and run the engine at low idle.
Increase the engine rpm to 1500 rpm. Run the
engine at high idle for one minute in order to
purge the air from the cavities of the engine
block. Stop the engine.
3. Check the coolant level. Maintain the coolant
level within 13 mm (.5 inch) below the bottom
of the pipe for filling. Maintain the coolant level
within 13 mm (.5 inch) to the proper level on the
sight glass (if equipped).
4. Clean the cooling system filler cap. Inspect the
gasket that is on the cooling system filler cap. If
the gasket that is on the cooling system filler cap
is damaged, discard the old cooling system filler
cap and install a new cooling system filler cap.
If the gasket that is on the cooling system filler
cap is not damaged, perform a pressure test. A
9S-8140 Pressurizing Pump is used to perform
the pressure test. The correct pressure for the
cooling system filler cap is stamped on the face
of the cooling system filler cap. If the cooling
system filler cap does not retain the correct
pressure, install a new cooling system filler cap.
5. Start the engine. Inspect the cooling system for
leaks and for proper operating temperature.
i01083041
Cooling System Coolant (ELC)
- Change
SMCS Code: 1350-070; 1395-044
Clean the cooling system and flush the cooling
system before the recommended maintenance
interval if the following conditions exist:
•
The engine overheats frequently.
•
Foaming of the coolant
•
The oil has entered the cooling system and the
coolant is contaminated.
•
The fuel has entered the cooling system and the
coolant is contaminated.
Note: When the cooling system is cleaned, only
clean water is needed when the ELC is drained
and replaced.
Note: Inspect the water pump and the water
temperature regulator after the cooling system has
been drained. This is a good opportunity to replace
the water pump, the water temperature regulator
and the hoses, if necessary.
Drain
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 are cool. Loosen the cooling system
pressure cap slowly in order to relieve the pres-
sure.
1. Stop the engine and allow the engine to cool.
Loosen the cooling system filler cap slowly
in order to relieve any pressure. Remove the
cooling system filler cap.
2. Open the cooling system drain valve (if
equipped). If the cooling system is not equipped
with a drain valve, remove the cooling system
drain plugs.
Allow the coolant to drain.