MAINTENANCE
D-6 D-6
RANGER 305D
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Never use gasoline or low flash point solvents for
cleaning the air cleaner element. A fire or explosion
could result.
Never run the engine without the air cleaner. Rapid
enginewear will result from contaminants, such as dust
and dirt being drawn from the engine.
AIRCLEANER
The diesel engine is equipped with a dry type air filter.
Never apply oil to it. Service the air cleaner as follows:
COOLING SYSTEM
HOTCOOLANTcanburn skin.
• Donotremove capif radiatoris
hot.
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Check the coolant level by observing the level in the
radiator and recovery bottle. Add 50/50 antifreeze /
water solution if the level is close to or below the
"LOW" mark. Do not fill above the "FULL" mark.
Remove radiator cap and add coolant to radiator. Fill
up to the top of the tube in the radiator filler neck which
includes a connecting hose coming from the thermo-
stat housing.
Todrain the coolant, open the petcock at the bottom of
the radiator. Open the radiator cap to allow complete
drainage. (Tighten the petcock and refill with a 50/50
antifreeze/water solution.) Use an automotive grade
(low silicate) ethylene glycol antifreeze. The cooling
system capacity is 3.85 quarts (3.6L.). Squeeze upper
and lower radiator hoses while filling to bleed air from
system coolant. Replace and tighten the radiator cap.
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% antifreeze can result
in engine overheating and damage to the engine.
Coolant solution must be premixed before adding to
radiator.
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Periodically remove the dirt from the radiator fins.
Periodically check the fan belt and radiator hoses.
Replace if signs of deterioration are found.
TIGHTENING THE FAN BELT
If the fan belt is loose, the engine can overheat and the
battery lose its charge. Check tightness by pressing on
the belt midway between the pulleys. It should deflect
about 0.28 to 0.35 in. under a load of 22 lbs. (7 to 9
mm/10Kg).
WARNING
WARNING
CAUTION
CAUTION