Yanmar 3JH4E Service Manual page 14

8.2.3 Lube oil pump disassembly and reassembly ................................................................................ 142
8.2.4 Lube oil pump inspection .............................................................................................................. 143
8.2.5 Oil pressure control valve construction ......................................................................................... 143
8.3 Lube Oil Filter .......................................................................................................................144
8.3.1 Lube oil filter construction ............................................................ 144
8.3.2 Lube oil filter replacement............................................................................................................. 144
8.4 Lube oil Cooler .....................................................................................................................144
8.4.1 Lube oil cooler construction .......................................................................................................... 144
8.4.2 Inspecting the lube oil cooler ........................................................................................................ 144
8.5 Rotary Waste Oil Pump (Optional) .......................................................................................145
9. Cooling Water System ................................................................................................. 146
9.1 Cooling Water System .........................................................................................................146
9.2 Seawater Pump ....................................................................................................................148
9.2.1 Specifications of seawater pump .................................................................................................. 148
9.2.2 Seawater pump disassembly ........................................................................................................ 149
9.2.3 Seawater pump Inspection ........................................................... 149
9.2.4 Seawater pump reassembly ......................................................................................................... 149
9.3 Fresh Water Pump ..............................................................................................................150
9.3.1 Fresh water pump construction..................................................................................................... 150
9.3.2 Specifications of fresh water pump ............................................................................................... 151
9.3.3 Fresh water pump disassembly .................................................................................................... 151
9.3.4 Fresh water pump inspection........................................................................................................ 151
9.4 Heat Exchanger ...................................................................................................................153
9.4.1 Heat exchanger construction ......................................................... 153
9.4.2 Specifications of heat exchanger ...................................................... 153
9.4.3 Disassembly and reassembly of the heat exchanger ................................................................... 153
9.4.4 Heat exchanger inspection ........................................................................................................... 153
9.5 Pressure cap and coolant recovery tank ..............................................................................154
9.5.1 Pressure cap construction............................................................ 154
9.5.2 Pressure cap pressure control ...................................................................................................... 154
9.5.3 Pressure cap inspection................................................................................................................ 154
9.5.4 Replacing filler neck...................................................................................................................... 155
9.5.5 Function of the coolant recovery tank .................................................. 156
9.5.6 Specifications of coolant recovery tank......................................................................................... 156
9.5.7 Mounting the coolant recovery tank .............................................................................................. 156
9.5.8 Precautions on usage of the coolant recovery tank ...................................................................... 156
9.6 Thermostat ...........................................................................................................................157
9.6.1 Functioning of thermostat ............................................................................................................. 157
9.6.2 Thermostat construction ............................................................. 157