Fresh Water Pump; Fresh Water Pump Construction; Specifications Of Fresh Water Pump - Yanmar 3YM30 Sevice Manual

9.3 Fresh water pump

9.3.1 Fresh water pump construction

The fresh water pump is of the centrifugal (volute) type, and circulates water from the fresh water tank to
the cylinder block and the cylinder head.
The fresh water pump consists of the pump body, impeller, pump shaft, bearing unit and mechanical
seal. The V-pulley on the end of the pump shaft is driven by a V-belt.
The bearing unit assembled in the pump shaft uses grease lubricated ball bearings and cannot be
disassembled.
Cylinder head

9.3.2 Specifications of fresh water pump

Pump shaft speed
Delivery capacity
Total head
Cylinder block
Gasket
O-ring
(To cylinder block)
-1
3860 ± 30 min
66.7 L/min or more
4 m Aq
162
9. Cooling water system
Thermostat
Cover
Gasket
Water temperature
switch
Fresh water pump
V-pulley