Yanmar 4JH2E Service Manual page 351

Chapter 9 Electrical System
6.
Warning D.evices
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~4JH Serus
6·2 Cooling water temperature alarm
A water temperature lamp and water temperature gauge,
backed up by an alarm in the instrument panel. are used to
monitor the temperature of the engine cooling water. A
high thermal expansion material is set on the end of the
water temperature unit. When the cooling water tem-
perature reaches a specified high temperature, the con-
tacts are closed, and an alarm lamp and buzzer are ac-
tivated at the instrument panel.
Fresh water pump
Fuse Main switch
l
: Battery
(Waler temperature alarm circuit)
57.7mm (2.2716in.)
L---IGreen
PT
318
9-40
I
ON 93 ~ 97°C (199 ~ 206°F)
Operating temperature
I
OFF 88°C (190°F) or high
Electric capacity
DC 12V, 1A
Response time
with in 60 sec.
Indication color
Green
Part code No.
127610·91350
Tightening torque
2.40 ~ 3.20kg·m
(17.35 ~ 23.14ft·lb)
6·3 Sender unit for lube oil pressure gauge
The sender unit for the lube oil pressure gauge has a
mounting seat for mounting on the lube oil filter bracket.
Oil pressure is measured when the oil enters into the main
gallery after being fed from the lube oil cooler and passing
through the oil pressure control valve. Be sure to mount a
vibration damper when mounting the oil pressure sender
unit.
Lube oil filter
Printed in Japan
AOAI 029-9002