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Ive tried for a few years to get my Shibaura 1803 lift working. Had a guy spend a couple hours with it this week with no success. Got another lined up to take a look in the near future, and that’s on top of the many hours I’ve spent on it myself.

My tractor has a “joystick” electronic lift switch and 3 knobs, all labeled in faded Japanese. I’ve never been able to understand or locate info on them.

If I get any satisfaction with the next mechanic, I’ll post the information here.

shibaura hydraulic three-point lift system
Shibaura
Replies 5 Post by bphogue4

I know this is a very old original post, but I'd love a copy of those translations, since other folks have asked in recent years. I've got an SD1803 that might have similar ones. Thanks! bphogue4 at gmail dot com.

Shibaura SD1840 Decal Translations
Shibaura
Replies 27 Post by bphogue4

I am needing assistance with my Shibaura SD1803, which has an electronic lift control.

Symptom is the lift won't come up, which came on gradually. I have been through the system, from cleaning the hydro pump filter, to checking that I am getting fluid at the lift housing, to fresh trans/hydraulic fluid, to new seal on the piston, to cleaning the solenoids (2) and control body, to checking continuity and and voltages.

I have got 12-14 VDC and 30 VAC at the control box, which is a water proof unit on the right of the seat that has a 3-position joystick, potentiometer, 3-position switch, and a knob that turns infinitely in either direction.

The solenoids seem to be the type that run on A/C current, as they each have only 1 color on the leads, indicating that they can be connected either way. I have no idea what voltage is appropriate, although I guess it may be near the 30 VAC I am measuring at input. I am measuring very low voltages to those leads with the tractor running. Joystick position doesn't seem to be affecting voltage.

The control box is quite intimidating. A black box inside says [b]Control Unit, Model PWM-02[/b] and the brand IHI Ishikawajima-Harima. The circuit board inside was covered with a white plastic liquid that hardened to protect the components, making tracing the 20 or so wires very difficult. I'm pretty sure my problem lies in that box, but even with a bit of electronic experience, I am at a loss to try and analyze what's going on.

I would love to be able to replace the control box and harness. Otherwise, I would just like to bypass all the draft and position controls and just get the basic lift working with a switch of some kind. But I need to know what the solenoids require so I do not fry a coil. Any ideas?

SHIBAURA STIGER SD2243 3PH Lift Problems
Shibaura
Replies 24 Post by bphogue4