Alternator wiring diagram and engine wiring diagram from the yanmar service manual are attached below. In front of me is a hunter wiring diagram from a boat with the hitachi 55amp alternator.
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Hitachi lr180 03c alternator wiring diagram. A wiring diagram usually gives suggestion virtually the relative approach and concord of devices and terminals upon the devices to support in building or. The alternator posts are e ground b battery l lamp and r. So i decided to go back to the oem installation and was looking to get the hitachi lr180 03 rebuilt. Thye also have a 97 amp version. Hitachi lr180 03c regulator the regulator has lost its marbles and is giving an output voltage of between 148 and 151 get free access to pdf ebook hitachi alternator lr180 03c service manual for free from pdf ebook center hitachi alternator lr180 03c service manual pdf compiled documents for wiring diagram for lr180 03c alternator. Top quality alternator hitachi iref inboard yanmar fits hitachi lr180 03 lr180 03a lr180 03b lr180 03c at an affordable price with top notch service.
Engine is a yanmar 3jh4e with hitachi lr180 03c alternator. My rebuild shop found a recent release of a jn alternator 400 44109 that was a hitachi replacement but is rated at 120 amps. Yanmar alternator wiring diagram wiring diagram is a simplified satisfactory pictorial representation of an electrical circuitit shows the components of the circuit as simplified shapes and the gift and signal links amid the devices. The r post is the one closest to the edge of the alternator the one we are calling the t connection. I bought a 55 a to replace my 35 a. The hitachi lr180 03 80a is an isolated ground alternator not case ground.
If its machine sensed then i simply need to connect the output b to my house bank. Reminder this was not the yanmar original alternator or setup. Does anyone know if this alternator is machine sensed vs battery sensed. New 80 amp alternator yanmar marine lr180 03abc 119573 77200 77201 129470 77200 12272n hitachi type replacement alternator repair 1 year. Do not pass your alternator current through the block. Ideally the b and b from the alt would be the same size.
Best to bump that wire up and then run the jumper over to your main engine negative lug clean it and physically stack it directly on top of it.
Gallery of Hitachi Lr180 03c Alternator Wiring Diagram
