Hyster C437 pallettruck - Maintenance & Troubleshooting discussion in Forkliftaction's forums

Discussion:
Hyster C437 pallettruck

Pallet truck
Have the problem sometimes
I push Horn pushbutton sinal there
But when I push the Belly switch its drive other direction thats oké But the horn signal is going to !!!
Sometime's all work perfect but most of the time when they hit the belly switch the horn signal is going off.

Is this A problem off the pcb in tillerhead ore the controller.

Regards

John.

Posted 19 Aug 2011 17:26
By johngen
joined 15 Apr'08 - 275 messages
NB, Netherlands

Email harlekein@hotmaildotcom and djdotdj@kpnmaildotnl

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Hi John
It does sound like what Ed said, possibly a suppression diode across the horn will resolve the problem.

The cathode end should go to the positive side of the horn and the anode to the negative connection. A basic In4004 style diode can be used.

Posted 20 Aug 2011 04:45
Modified 20 Aug 2011 04:46 by poster
By elektrodrive
joined 2 May'08 - 746 messages
West Midlands, United Kingdom

enquiries@elektrodrive.co.uk

http://www.facebook.com/pages/Elektrodrive/135894223166624

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Thanks Edward
when I put on Belly switch the horn sounds and he drive other direction.
I don't see in wiring this connection ! 4 wiring to controller

and seperate out to Horn

Regards
John.

Posted 19 Aug 2011 20:35
By johngen
joined 15 Apr'08 - 275 messages
NB, Netherlands

Email harlekein@hotmaildotcom and djdotdj@kpnmaildotnl

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sounds like a diode is needed in the horn circuit neg side.

Posted 19 Aug 2011 20:22
By edward_t
joined 5 Mar'08 - 2,334 messages
South Carolina, United States

"it's not rocket surgery"

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