Fayat DYNAPAC F1000T T4f, Operation & Maintenance Manual

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F 28
Do not remove the radiator cap from a hot engine. Wait until the temperature is below 120° F (50° C)
before removing the pressure cap. Failure to do so can result in personal injury from heated coolant
spray or steam. Remove the filler cap slowly to relieve coolant system pressure.
Do not add cold coolant to a hot engine. Engine castings can be damaged. Allow the engine to cool
to 120° F (50° C) before adding coolant.
Changing the coolant
To change the coolant:
- Remove the radiator cap.
- Open the drain valve at the bottom of the radiator and drain the cooler into an environmentally
approved drain pan with a capacity of about 5 gallons (19 liters)
- Inspect the hoses to and from the radiator and replace them if they look worn or cracked.
Engine Coolant system (5):
Fully formulated antifreeze must be mixed with
quality water at a 50/50 ratio. A 50/50 mixture of
water and ethylene glycol or propylene glycol
antifreeze to fill the cooling system. The 50/50 mix
gives protection to the cooling system at a range
of --34_F (--36_C) freezing point and a 228_F.
(110_C) boiling point, which is adequate for
locations in North America. The actual lowest
freezing point of ethylene glycol antifreeze is 68
percent. Using higher concentrations of antifreeze
will raise the freezing point of the solution and
increase the possibility of a silica gel problem.
Checking / filling coolant level
The coolant level is checked when the engine is
cold. Check the coolant level daily (10 hours or as
needed). Use a Refractometer to ensure the anti-
freeze and anti-corrosive liquid is sufficient (-25°
F / -31.6° C)
- Add sufficient amount of coolant through the
fill cap (A) on the coolant tank. Check the
coolant level at the site-glass (B) inside the
fuel fill door. Do not mix coolants. Only use
Dynapac approved coolants.