Kubota D1803-CR-E4 User Manual

7.10 Reserve tank
7.10.1 Outline of reserve tank
The reserve tank stores coolant discharged from the
radiator cap.
7.10.2 Structure of reserve tank
The reserve tank is made up of an overflow pipe and
the tank body.
(1) Reserve tank
(2) Overflow pipe
(A)
Upper limit line
(B) Lower limit line
7.10.3 Function of reserve tank
When radiator internal pressure is above specified
pressure
Coolant expanded
by high temperature is discharged to
and stored in the reserve tank.
When radiator internal pressure is below
atmospheric pressure
When the engine cools, the coolant in the reserve tank
returns to the radiator based on lower than atmospheric
pressure.
7.11 Fan belt
7.11.1 Outline of fan belt
The fan belt drives the cooling fan and alternator.
7.11.2 Structure of fan belt
The fan belt is made up of rubber and synthetic fibers.
(1) Top fabric
(2) Cord
(3)
Rib rubber
7.11.3 Function of fan belt
The fan belt transfers rotation of the fan drive pulley to
the cooling
fan and in conjunction with coupling
mechanisms for driving, drives the alternator and water
pump as well.
MECHANISM
7. Cooling system 4. ENGINE
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
4-65
KiSC issued 12, 2018 A

Kubota D1803-CR-E4 Specifications

General

Brand	Kubota
Model	D1803-CR-E4
Category	Engine
Language	English