LINES GP-DIESEL EXHAUST FLUID 5168638 - Caterpillar

Engine Jacket Water
Checking Coolant Level
With the engine stopped:1. Slowly turn the filler cap to the first stop and release pressure.
Be careful. If the engine is warm-steam may spray outward under high pressure.
2. Push the cap down; turn until the cap is released.3. Maintain level to base of fill pipe. The coolant requires expansion space as it is heated.
PROPER COOLANT LEVEL4. Make-up coolant should be one of the following, in the order of preference: a. Permanent anti-freeze and water solution.b. Drinkable water and rust inhibitor solution.c. Drinkable water.d. Any available water.(a) Must be used if engine is to be shut down in below freezing weather without draining the coolant. (b) Can only be used when the coolant temperature is above freezing, or if the coolant will be immediately drained after shut down during below freezing temperatures.(c) or (d) Should only be used as a "temporary fix". As soon as possible, return the system to either (a) or (b).Checking Water Temperature Gauge Reading
The water temperature gauge should normally register in the NORMAL range when operating. However, with some systems, as long as the coolant does not boil the cooling system is functioning properly. 1. If the water temperature gauge continually registers near-or in the "HOT" range-without boiling, have the system checked to determine if the cooling system is functioning properly.2. Frequently check the water temperature gauge while operating. Be sure to note any deviation from the normal reading.3. Whenever the reading changes, investigate the cause and have necessary repairs made.Draining Radiator Or Expansion Tank
Whenever it is necessary to drain the cooling system for repairs:1. Shut the engine off.2. Slowly turn the pressure cap to the first stop and release pressure.
Be careful. If the engine is warm-steam may spray outward under high pressure.
3. Push the cap down and turn until the cap is released.4. Open the drain valve on the radiator, if so equipped.
COOLANT DRAINDraining Complete Cooling System
1. Remove the engine block drain cover; rear left side.2. Remove the water pump drain plug.
COOLANT DRAINS3. Remove the oil cooler bonnet drain plug.
COOLANT DRAIN4. Remove the water shield drain plugs if equipped with a water cooled manifold.5. Remove aftercooler drain plugs if so equipped.6. Allow the coolant to drain.7. Install all drain covers and plugs.8. Close the radiator drain valve.Flushing Cooling System
To clean the cooling system, any good commercial radiator cleaning solution can be used. Follow the instructions included with the cleaner.The cooling system can be cleaned using oxalic acid and sodium carbonate as follows: 1. Fill the cooling system with a solution consisting of two pounds of oxalic acid or sodium bisulphate (NaHSO4) with every