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 Post subject: Servo - Now with PIC! - Bent arms and unexpected arm ID-ing
PostPosted: Mon Jul 23, 2018 9:50 pm 
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Joined: Tue Jul 08, 2014 2:15 pm
Posts: 19
Hello RZ500 Friends,

So were getting into some complicated bits on my buddies bike and I need help.

Examination of the servo system shows me that parts are marked 1 or 2.
The servo iteself is marked 1 & 2 on the housing.
The servo wheel is marked 1 & 2 and logically I think the each connects via the cable connection matching the housing.

The servo arms are marked 1 & 2 and things brake down here....
The arm IDs do not match the servo wheel. They are marked opposite.
Now this may be okay. The shop manual which IMHO leaves much to be desired seems to indicate this may be so.

Can some kindly explain the correct servo setup?

Next up...... Bent servo arms...
It looks like the servo arms may be bent. Maybe I'm expecting too much precision here. IT is just not perfectly straight.
The board says the attachment quota is met.... So I can't add a picture. Can anyone comment?


Thank you,
Tony H.


Last edited by tonyhes on Thu Aug 02, 2018 10:41 pm, edited 1 time in total.

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 Post subject: Re: Servo - Give me a clue - Bent arms and unexpected arm ID
PostPosted: Thu Aug 02, 2018 10:40 pm 
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Joined: Tue Jul 08, 2014 2:15 pm
Posts: 19
Okay maybe I'll get a reply now that there is a photo.


Attachments:
servo arm bent.jpg
servo arm bent.jpg [ 106.96 KiB | Viewed 248 times ]
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 Post subject: Re: Servo - Now with PIC! - Bent arms and unexpected arm ID-
PostPosted: Sun Aug 05, 2018 6:35 am 
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Joined: Wed Nov 28, 2007 7:12 am
Posts: 40
Location: Anderson, Indiana
The arms do have slight bend in them. At least mine did. If you straighten them, I think you'll find they will bind on the pivots.

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 Post subject: Re: Servo - Now with PIC! - Bent arms and unexpected arm ID-
PostPosted: Sun Aug 05, 2018 3:23 pm 
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Joined: Thu Jan 26, 2006 3:56 pm
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Location: la belgique
That s normal

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 Post subject: Re: Servo - Now with PIC! - Bent arms and unexpected arm ID-
PostPosted: Sun Aug 12, 2018 3:14 pm 
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Joined: Tue Jul 08, 2014 2:15 pm
Posts: 19
Thank you kind sirs!


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 Post subject: Re: Servo - Now with PIC! - Bent arms and unexpected arm ID-
PostPosted: Mon Aug 13, 2018 3:34 pm 
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Joined: Sat Nov 19, 2005 1:15 am
Posts: 953
Location: Lee's Summit, MO
Tony,

The arms do not have a bend in them from the factory. What has occured is that your powervalves and or linkage has suffered from being too tight to allow the servo motor to rotate the valves. The link are in turn is the weakest link and thus bends from continued stress. They need to be straightened. Then the cylinders pulled, the valves removed, cleaned, the port hole for the valves in the cylinder cleaned, the holder caps cleaned and then all reassembled with a liberal amount of molybdenum disulfide grease. The linkage needs to be cleaned and serviced also including the cam system that rotates with the cables.

The powervalves likely were carboned up and stuck causing the bent rod(s).

Hope that helps.

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Bill Wilson
Wilson Performance
Lee's Summit, MO
http://www.wilsonperformance.net
Member RZ500 Owners Group #573
816-377-3185
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