TX / TXH / TXB 180S - 400L (Rev. 4/23/07)
TX / TXH / TXB 180S - 400L (Rev. 4/23/07)
4-2
4-2
Section 5
Section 5
Cooling System
Cooling System
Introduction.
Introduction.
The engine
The engine
cooling sys
cooling sys
tem cools
tem cools
the
the
engine.
engine.
Refer
Refer
to
to
Section 9A
Section 9A
for transmission
for transmission
cooling system and
cooling system and
Section 15C
Section 15C
for the wet disc
for the wet disc
brakes cooling system to find more detailed cool-
brakes cooling system to find more detailed cool-
ing information on these particular systems.
ing information on these particular systems.
Major Components
Major Components
(Illustrations 5-3 and 5-4)
(Illustrations 5-3 and 5-4)
.
.
The engine cooling system consists of coolant,
The engine cooling system consists of coolant,
radiator / charge air cooler, recovery bottle, hoses
radiator / charge air cooler, recovery bottle, hoses
connecting the radiator to the engine and a water
connecting the radiator to the engine and a water
pump to circulate the coolant.
pump to circulate the coolant.
Operation
Operation
(Illustration 5-4)
(Illustration 5-4)
.
.
When the engine is
When the engine is
started, the water pump draws coolant from the
started, the water pump draws coolant from the
radiator into the
radiator into the
engine block.
engine block.
The coolant is
The coolant is
cir-
cir-
culated through the engine and the coolant filter
culated through the engine and the coolant filter
until it reaches a temperature of approximately
until it reaches a temperature of approximately
190
190
F (88
F (88
C), at which point the thermostat will
C), at which point the thermostat will
start to open.
start to open.
This will allow
This will allow
coolant flow back
coolant flow back
into
into
the top of the radiator core.
the top of the radiator core.
Coolant.
Coolant.
The cooling system of this equipment is
The cooling system of this equipment is
protected to -34
protected to -34
F (-36
F (-36
C) and 228
C) and 228
F (110
F (110
C).
C).
The solution is a 50 - 50 mixture of ethylene glycol
The solution is a 50 - 50 mixture of ethylene glycol
base antifreeze
base antifreeze
to water
to water
solution.
solution.
Use soft
Use soft
water
water
in the c
in the c
oolant mixture.
oolant mixture.
It is
It is
recommended that
recommended that
50% solution be maintained year round.
50% solution be maintained year round.
Radiator
Radiator
(Illustration 5-3)
(Illustration 5-3)
.
.
The radiator is force-
The radiator is force-
air-cooled.
air-cooled.
Access to
Access to
its core
its core
is provided
is provided
through
through
a 16 psi (110 kPa) radiator cap located on top of
a 16 psi (110 kPa) radiator cap located on top of
the radiator.
the radiator.
When changing the coolant, refer to
When changing the coolant, refer to
Draining / Flushing The Cooling System
Draining / Flushing The Cooling System
and
and
Filling The Cooling System
Filling The Cooling System
.
.
Illustration
Illustration
5-1.
5-1.
Coolant
Coolant
Level
Level
Servicing The Cooling System
Servicing The Cooling System
Severe injury may occur from
Severe injury may occur from
burns.
burns.
Radiator
Radiator
and
and
cap
cap
can
can
be
be
hot.
hot.
Heated
Heated
coolant can spray
coolant can spray
.
.
Always shut
Always shut
down engin
down engin
e
e
and allow to cool before
and allow to cool before
attempting to open
attempting to open
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Summary of Contents for TX180S
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