Yanmar 4LHA-STP User Manual

Chapter 9 Electrical System
4. Altemator
4LHA Series
(2) Overcharging
Tum on the key switch.
(Start the engine.)
* Measure BAT voltage of
generator.
Defective
Replace IC regulator or generator.
(3) Charge lamp failure
Check if the charge lamp lights
after turning on the key switch.
Defective
Check the wiring.
Replace charge lamp.
OK
V
After turning on the key switch
(after engine starting), check if
the charge lamp goes off.
Charge lamp is OK if it goes off.
Defective
o Replace fan belt,
o Adjust fan belt.
Check the fan belt.
OK
Defective
Measure BAT voltage of
generator.
*• Replace the charge lamp.
9-34

Yanmar 4LHA-STP Specifications

General

Number of Cylinders	4
Fuel System	Direct Injection
Engine Type	4-Stroke Vertical Water-Cooled Diesel Engine
Displacement	3.455 L
Bore x Stroke	100 mm x 110 mm
Aspiration	Turbocharged