Cooling System - Komatsu 114E-3 Series Shop Manual

10 Structure, function and maintenance standard

Cooling system

General Information
1. Coolant inlet from radiator
2. Water pump suction
3. Coolant flow through lubricating oil cooler
4. Block lower water manifold (to cylinders)
5. Coolant filter inlet (optional)
6. Coolant filter outlet (optional)
7. Coolant supply to cylinder head
8. Coolant return from cylinder head
9. Block upper water manifold
10. Thermostat bypass
11. Coolant return to radiator
Conventionally cooled engines with automatic
transmissions typically use oil-to-water transmis-
sion torque converter coolers plumbed between the
radiator and the engine water pump.
A torque converter cooling system with a remote
bypass allows the torque converter to receive cool-
ant flow when the thermostat is closed (engine
cold).
114E-3 Series
SEN00176-02
1
9