Manitou MSI30D:
Jerky drive

Hello, I've got a 2002 Manitou MSI30D in quite good condition, less than 4000 hours, however it drives terribly - it lurches until up about 50% speed. Over 50% of max speed it runs smoothly - and very fast. If lifted off the ground, the wheels speed up and slow down smoothly - but under load, it's a different matter.

It's like a feedback problem in a governor that's overcompensating/hunting. Anyone else experienced this issue, or know what it is/how to fix it? It arrived like this - and having purchased at auction, we have no idea of it's history.
  • Posted 12 Jan 2021 17:52
  • Discussion started by CharlesM
  • Victoria, Australia
Any help appreciated!

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