Yanmar 3YM30 Sevice Manual page 7

8.2.3 Lube oil pump disassembly and reassembly ................................................................................ 153
8.2.4 Lube oil pump inspection .............................................................................................................. 154
8.2.5 Pressure control valve construction .............................................................................................. 154
8.3 Lube oil filter .........................................................................................................................155
8.3.1 Lube oil filter construction ............................................................................................................. 155
8.3.2 Lube oil filter replacement............................................................................................................. 155
8.4 Rotary waste oil pump (Optional) .........................................................................................156
9. Cooling water system ................................................................................................. 157
9.1 Cooling water system ...........................................................................................................157
9.2 Seawater pump ....................................................................................................................159
9.2.1 Specifications of seawater pump .................................................................................................. 159
9.2.2 Seawater pump disassembly ........................................................................................................ 159
9.2.3 Seawater pump Inspection ........................................................................................................... 160
9.2.4 Seawater pump reassembly ......................................................................................................... 161
9.3 Fresh water pump ...............................................................................................................162
9.3.1 Fresh water pump construction..................................................................................................... 162
9.3.2 Specifications of fresh water pump ............................................................................................... 162
9.3.3 Fresh water pump disassembly .................................................................................................... 163
9.3.4 Fresh water pump inspection........................................................................................................ 163
9.4 Heat exchanger ....................................................................................................................165
9.4.1 Heat exchanger construction ........................................................................................................ 165
9.4.2 Disassembly and reassembly of the heat exchanger ................................................................... 165
9.4.3 Heat exchanger inspection ........................................................................................................... 165
9.5 Pressure cap and coolant recovery tank ..............................................................................166
9.5.1 Pressure cap construction ............................................................................................................ 166
9.5.2 Pressure cap pressure control ...................................................................................................... 166
9.5.3 Pressure cap inspection................................................................................................................ 166
9.5.4 Replacing filler neck...................................................................................................................... 167
9.5.5 Function of the coolant recovery tank ........................................................................................... 168
9.5.6 Specifications of coolant recovery tank......................................................................................... 168
9.5.7 Mounting the coolant recovery tank .............................................................................................. 168
9.5.8 Precautions on usage of the coolant recovery tank ...................................................................... 168
9.6 Thermostat ...........................................................................................................................169
9.6.1 Functioning of thermostat ............................................................................................................. 169
9.6.2 Thermostat construction ............................................................................................................... 169
9.6.3 Characteristics of thermostat ........................................................................................................ 169
9.6.4 Thermostat inspection................................................................................................................... 169
9.6.5 Testing the thermostat .................................................................................................................. 169
9.7 Bilge pump and bilge strainer (Optional) ..............................................................................170