Instrument Panel; B-Type Instrument Panel (Optional) - Yanmar 3YM30 Sevice Manual

12. Electrical System

12.6 Instrument panel

The new type instrument panels are applied for 3YM30/3YM20 series engines. The features are
compactness, waterproof and independence from pulse by ring gear teeth number.
The engine speed, indicated with the instrument panel is activated by the pulse from flywheel ring gear.
The engine speed with new panel is activated by alternator B terminal pulse

12.6.1 B-type instrument panel (Optional)

Rubber seal,
B panel
Coolant high
temperature alarm
Panel with
cover foil
Lubricating oil low
pressure alarm
20 30
10 40
0 50
Key switch
Tachometer
Hour meter
196
Water in sail
drive seal alarm
Battery low
charge alarm
STOP
B OFF
ON
GLOW
START
Stop button
switch
Moisture cap
for key switch