Kubota B1830, Workshop Manual, Page: 495 / 548

CABIN B1830,B2230,B2530,B3030, WSM
10-M18
(3) Heater Core
The heater utilizers the heater core to absorb heat
from the coolant, which has removed heat from the
engine. The inlet port of heater core is connected to the
delivery side of the engine water pump by a rubber hose.
The water valve is installed on the inlet port of the heater
core. Also, the outlet port of the heater core is connected
to the engine cylinder block.
The heater core is a heat exchanger, like the
evaporator or condenser. Heat is exchanged between
heated coolant passing through the core and air in the
cabin or fresh outdoor air. The cab air is heated through
this process.
9Y1210003CAM0023US0
(4) Water Valve
The water valve (3) is connected to the temperature
control lever (8) by a linkage.
The valve in the water valve (3) is opened or closed
by the temperature control lever (8).
9Y1210003CAM0024US0
(1) Evaporator (2) Heater Core
(1) Water Hose (to Engine)
(2) Water Hose (from Engine)
(3) Water Valve
(4) Water Hose
(to Heater Core)
(5) Water Pipe
(to Heater Core)
(6) Water Pipe
(from Heater Core)
(7) Heater Core
(8) Temperature Control Lever
A: Water Flow
KiSC issued 05, 2012 A