Hi there
We have a twin drive old Komatsu with the Sevcon SC2000 controller in the back.

The truck works when the line contactor energises along with a smaller contactor SW80 which sits between the 2 sets of direction contactors for left and right motor (something to do with lockout). However if this small contactor does not energise the truck does not drive. Sometimes it energizes sometimes it does not, other times if left switched on after a while might just energise.

The Sevcon controller does not throw any errors up and states OK.

Can anyone shed some light on this contactor or provide a manual with the factory settings so i can re calibrate the SC2000 controller with factory settings?

Regards