Lincoln Electric 12716, Operator'S Manual, Page: 48 / 64

D-4
MAINTENANCE
FUEL FILTERS
When working on the fuel system
• Keep naked lights away, do not smoke!
• Do not spill fuel!
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The Frontier 400X
®
/ water separator and drain out any water daily. Close drain when
diesel fuel starts to come out. If excessive water is in the fuel, the
follows.
1. Close the fuel shutoff valve.
ring.
with clean lubricating oil.
COOLING SYSTEM
The cooling system of the engine needs to be checked and
cleaned periodically. (Consult the Engine Owner's Manual for the
proper procedures and frequency).
will not start if coolant level is too low.
The coolant system is equipped with an internal expansion tank
located inside the top radiator tank. This allows for normal thermal
expansion and contraction of the engine coolant.
CHECKING AND REPLACING COOLANT
HOT COOLANT can burn skin. Do not remove
cap if radiator is hot.
Check the coolant level by observing the level in the radiator. Add
50/50 antifreeze / water solution if the level is low by removing
the radiator cap and adding coolant into the radiator. Fill up to the
To drain the coolant, open the valve at the bottom of the radiator.
Open the radiator cap to allow complete drainage. (Tighten the
automotive grade (low silicate) ethylene glycol antifreeze. The
cooling system capacity is 7.2 qts. (6.8L). Squeeze upper and
Replace and tighten the radiator cap.
Periodically check the fan belt and radiator hoses. Replace if
signs of deterioration are found.
Always premix the antifreeze and clean tap water before
adding to the radiator. It is very important that a precise
50/50 solution be used with this engine year round. This
gives proper cooling during hot weather and freezing
protection to -34° F (-37° C).
Cooling solution exceeding 50% ethylene glycol can result
in engine overheating and damage to the engine. Coolant
solution must be premixed before adding to radiator.
WARNING
WARNING
WARNING
CAUTION
FRONTIER ® 400X