I'm getting a strange rapid oscillation in the YPVS servo at the tail end of it's cycle when the ignition is turned on, If I twist the pulley home it ceases.
Does anyone know what is causing this?
20180512_125150 by Matthew Leahy, on Flickr
Strange behavior from my YPVS servo
Moderator: rztom
Strange behavior from my YPVS servo
I'm not a complete idiot...some parts are missing.
Re: Strange behavior from my YPVS servo
Sounds like your pv cables do not have enough slack.
Re: Strange behavior from my YPVS servo
Thanks Begbie, I'll double check them.
I'm not a complete idiot...some parts are missing.
Re: Strange behavior from my YPVS servo
Something got stuck and the jerking you see is the strategy to overcome it.
Check if the bowden cables pull out easily and if the valves rotate easily in their cylinder bores.
The latter one can be cured with using pliers to move them until it gets easier.
Check if the bowden cables pull out easily and if the valves rotate easily in their cylinder bores.
The latter one can be cured with using pliers to move them until it gets easier.
Bye
Martin
Martin
Re: Strange behavior from my YPVS servo
Does it occur with cables removed ?
Re: Strange behavior from my YPVS servo
Are the YPVS cables routed correctly between the rear pipes?
Colin
Re: Strange behavior from my YPVS servo
Thanks for the input folks, I'll check all this on the weekend.
I was initially thinking it might be a problem with the potentiometer in the servo or a problem with the controller but it makes more sense that it's a mechanical issue.
I was initially thinking it might be a problem with the potentiometer in the servo or a problem with the controller but it makes more sense that it's a mechanical issue.
I'm not a complete idiot...some parts are missing.
Re: Strange behavior from my YPVS servo
So, disconnected the cables at the servo, servo operates as it should, disconnected the cables at the bell crank, the cables are free and operate smoothly, rotated the power valves manually about a dozen times, sprayed some lube on the linkages re-assembled and re-adjusted the cables and now eveything works just fine.
Thanks for all the suggestions folks.
Thanks for all the suggestions folks.
I'm not a complete idiot...some parts are missing.