Radiator; Radiator Cap - Kubota Z400-B Handbuch

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(x)76F1J14
[3] RADIATOR
The radiator core consists of water carrying tubes (1) and
fins (2) at a right angle to the tubes. The fin is a louverless,
corrugated type which is light in weight, high in heat ex­
change ratio and less apt to clog.
The water in the tubes is cooled by the air flowing through
the tube walls and fins.
(A) Cooling Air
(1) Tube
(2) Fin
(3) Louverless Corrugated Fin
(4) Louvered Corrugated Fin
[4] RADIATOR CAP
The pressure type radiator cap prevents differences in
pressure between the inside and the outside of the radiator
from deforming the radiator.
When the water temperature rises and the pressure in the
radiator increases above the specified pressure, the pressure
valve (1) opens to reduce the internal pressure. When the
water temperature falls and a vacuum forms in the radiator,
the vacuum valve (2) opens to introduce the air into the
radiator.
(1) Pressure Valve
(2) Vacuum Valve
M·23