COLD WEATHER PRECAUTIONSPrecautions against damage from freezing should be taken If the engine is to be left exposed to cold weather. Eitherdrain the cooling system or, where this is not convenient, a good quality anti-freeze that incorporates a suitable corrosioninhibitor may be used.If anti-freeze Is used to protect an engine from freeze damage, ascertain whether it is suitable for use in Perkins Enginesand also ensure that it will have no harmful effect on the cooling system in general. Most popular brands (e.g., Prestone)are acceptable.WARNING: HARMFUL OR FATAL IF SWALLOWED. If anti-freeze isswallowed, induce vomiting immediately. Call a physician. Do not store inopen or unlabeled containers. KEEP OUT OF REACH OF CHILDREN.To drain the cooling system, the taps on the cylinder block must be opened. There may be other drain taps on theexhaust manifold, oil cooler. etc., all of which must be opened.When the engine is drained, the fresh water pump will also drain but. In sub-freezing weather. rotation of the pump maybe prevented by:a.locking of the impeller by ice because the pump hole was blocked by sediment and the pump was notcompletely drained.b.locking of the seal because of frozen globules of moisture between the seal and the gland.When operating in sub-freezing weather:1.Before starting the engine turn the fresh water pump by hand; this will indicate if the pump is frozen. If frozen, thisshould free any ice formation.2.If it is impossible to turn the pump by hand, the engine should be filled with warm water3.To avoid this trouble, it is advisable, after the water has been drained, to run the engine for a few seconds at idlingspeed. This will disperse any moisture remaining In the pump After an anti-freeze solution has been used, thecooling system should be thoroughly flushed in accordance with the manufacturers instructions before refilling withnormal coolant.If the foregoing action is taken no harmful effects should be experienced but Perkins cannot be held responsible for anyfreeze damage or corrosion which may be Incurred.FUEL SYSTEMThe importance of cleanliness in all parts of the fuel system cannot be overstressed. Dirt and sludge can destroy anengine.FUEL OIL SPECIFICATIONSDiesel fuel oil refined according to the following specifications are acceptable for Perkins engines:ASTM Classification .................................................................................................................... D-975-66TGrades ................................................................................................................................ No. 1 or No. 2Federal Specification.....................................................................................................................VV-F-800Grades .............................................................................................................. DF-A (Arctic), DF-1 or DF-2Cetane No. (Ignition Quality).................................................................................................. 45 (Minimum)-45-
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