Upright LX31 - Page 89

Section 3 - Troubleshooting MOS90 Fault Finding Flow Charts
067448-023 LX31/LX41 Electric and Bi-Energy Work Platform | European Specifications Page 3-13
11 Flashes
- Tachometer signal out of
range
- Drive inhibited
- Flashes until fault cleared
Check tachometer wires for shorts to frame or a
voltage source
Rectify
Check output voltage from tachometer using
voltmeter
Replace
Replace MOS90 Controller
12 Flashes
- Severe tilt condition with
platform raised above
2 meters
- Vehicle goes into emergency
stop (forced neutral state) and
plug brakes to a stop
- Recycle nuetral to clear fault
Use calabrator test mode and check platform up
switch and severe tilt switch inputs and wiring
Rectify
Replace MOS90 Controller