
Reference
Only
Manitowoc
Published 12-05-17, Control # 035-23
7-13
18000 SERIVCE/MAINTENANCE MANUAL
POWER TRAIN
7
ENGINE COOLING SYSTEM
General
The cooling system consists of a vertically mounted radiator
in front of the engine with a hydraulically driven blower-type
fan.
Operation
Coolant Flow
The cooling system is of the de-aerated type, which
continually removes air from the system, as follows:
•
A small percentage of total coolant flow is circulated
through a vent line to the radiator.
•
Since coolant circulation is very slow in the radiator, air
separates from the coolant.
•
Air collects at the top of the radiator. When pressure
rises to 15 psi (1,03 bar), the relief in the fill cap opens to
exhaust air through overflow line.
•
De-aerated coolant returns to the system through a
make-up line.
FIGURE 7-10
Item Description
Item Description
1
Engine
6
Vent Line
2
Water Pump Housing
7
Fill Cap
3
Thermostat Housing
8
Cooler Assembly
4
Bypass Line
9
Fan
5
Make up Line
10
Motor
MAIN FLOW
MAKE-UP FLOW
DEAERATION FLOW
Closed Thermostat
Open Thermostat
cooler_flow_a
cooler_flow_b
1
2
3
4
5
6
7
8
9
10
3
5
7
8
2
1
6
3
4
9
10
Содержание 18000
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