Yanmar 4LHA-HTP - Page 665

Chapter 9 Electrical System
6. Warning Devices
4LHA Serie
Lube oil pressure sender unit
82.4 (3.2440)
M5 x P0.8
PTI (8
mm (in.)
(0.5511
Damper
PT 1/8.
T=
:
» 8
1»
Type
Resistance switch
Rated voltage
IDC 12/DC 24
Max. operating pressure
0.78 (8) MPa (kgf/cm)
Part code No.
144626-91560
01 (0.0393)
6-4 Sender unit for the cooling water temperature
gauge
The water temperature sender unit has a mounting seat
for mounting on the fresh water pump unit. Water tem-
perature is measured when the cooling water flows into
the thermostat housing after leaving the cylinder head.
Cooling water
temperature
sender unit
Type
Thermistor switch
Rated voltage
12V/24V
Part code No.
144626-91570