Yanmar 3JH3E - Chapter 6 COOLING WATER SYSTEM

Printed in Japan
HINSHl•H8009
CHAPTER 6
COOLING WATER SYSTEM
1. Cooling Water System ................................. 6-1
2. Sea Water Pump ....................................... 5_3
2-1 Specifications of sea water pump ............... 6-3
2-2 Sea water pump disassembly
.................. 6-3
2-3 Sea water pump Inspection
..................... 6-3
2-4 Sea water pump reassembly ..................... 6-4
2-5 Current characeristics· ...... · -· .. ·
................. 6-4
3. Fresh Water Pump .... ··· • · .. · ·
.................. · ... ·6-5
3-1 Fresh water pump construction
.................. 6-5
3-2 Specifications of fresh water pump ............ 6-6
3-3 Fresh water pump disassembly .................. 6-6
3-4 Fresh water pump inspection .................. 6-6
4. Heat Exchanrger ...... · .......... · ..................... 6-8
4-1 Heat exchanger construction ..................... 6-8
4-2 Specifications of heat exchanger
............... 6-9
4-3
Disassembly and reassembly of the heat exchanger · -· 6-9
4-4 Heat exchanger inspection
........................ 6-9
5. Pressure Cap and Sub Tank .... · .. · ......... · .. ·6-10
5-1 Pressure cap construction ..................... 6-10
5-2 Pressure cap pressure control
............... 6-10
5-3 Pressure cap inspection
........................ 6-10
5-4 Function of the sub tank
........................ 6-10
5-5 Specifications of sub tank
........ · ........ · .. ·6-11
5-6 Mounting the sub tank .... · .. · .... · ...... · ...... ·6-11
5- 7 Precautions on usage of the sub tank ...... 6-11
6. Themnostat .. · ...................... · .. · · .... · .... · .. · .. 6-12
6-1 Functioning of thermostat ........................ 6-12
6-2 Thermostat construction
........................ 6-12
6-3 Characteristics of thermostat
.................. 6-12
6-4 Thermostat inspection
........................ · .. 6-13
6-5 Testing the thermostat
........................... 6-13
7. Bilge Pump and Bilge Strainer (Optional) ...... 6-14
7-1 Introduction ....................................... 6-14
7-2 Description
.......................................... 6-14
7-3 Cautions ...... · .. ·
........................ · .. · ...... ·6-14