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PostPosted: Wed Dec 21, 2016 9:50 am 
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Around the block
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Joined: Sun Nov 18, 2012 7:18 am
Posts: 79
Country: Italia
Bikes owned: RG500 CR500 GS1000G
Suzsmokeyallan wrote:
Perform a test on the motors travel limits to see if the window stops current when its blocking the sensors.


'Bout the collection of electric/electronic devices, that's what I call raking up the market ... :shock:

In view of future possible failures, it's gotta be either your way (stashing-up), or my (stubborn as I am) way, of trying and reverse engineer the little buggers.

All that said, I am not an engineer, but I am stiff-necked, so I am willing to learn, and the reason of this "late" reply is, I am sort of training myself in the field.

Off course, this would look optimistic, without a fascination for electricity/electronics. (yes, I've been doing, in the past Maplin projects, AM-FM radio, led displays that sort of stuff...! :D )

To answer your suggestion, I think the two Hall sensors, failed; if you took a glance of the actuator's innards, you'll have seen that, the latters are placed in a way so that, the second gives the final pulley position, once the motor has rotated a quarter of a round clockways, giving the consent for the motor to spin the opposite way, stopping, once the little mag on the cog, aligns with the first sensors.

The marking on the sensor do not help much, being them more than 35 years old and seemingly discontinued, and on top of it, this marks often do not bear a relation to the actual product line:

Image

this is almost spot on, but this one...

Image

even though, is marked 177 725z is, in actual fact a Melexis US1881 spec;

I do not wish to delve into the wonders of Hall sensor, least I want to annoy the reader, so I limit myself to the first question that arises: even before tracking the right chap, it should be determined if the control unit, accepts an analogic or digital input, from the sensors, the other values being determinable by deduction (I.E. automotive part so, avg V around 9/12V, max tmp 150 deg. C ) with the other ever important variable, the output in mA, left to be guessed.

Unfortunately, is very difficult for me. at this stage, to give this answers, till I examine better, what is salvaged, from the removal of the matter embedding the inside of the control box.

For now, I seem to have pinned the component to the Panasonic line of products (markings sort of consistent with the mentioned company ones, being it a japanese Co, plus an amount of polite guess...).


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PostPosted: Tue Apr 11, 2017 6:31 pm 
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Joined: Sun Nov 18, 2012 7:18 am
Posts: 79
Country: Italia
Bikes owned: RG500 CR500 GS1000G
Well, at last, I got the actuator working, the way it's supposed to, having replaced the relevant, discrete components :up: :up:

https://youtu.be/czjV1eoHifk


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PostPosted: Tue Apr 11, 2017 6:56 pm 
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To the on ramp
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Location: Wichita, Kansas USA
Country: USA
Bikes owned: GT500 T500 GT750
Victory, nice work!


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PostPosted: Wed Apr 19, 2017 7:36 am 
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Joined: Fri Oct 24, 2008 9:11 am
Posts: 4133
Location: Mostly Barbados, sometimes Florida and western Canada
So what was wrong with the original armature, did it have an open circuit on one of the coils?

_________________
Two strokes, its just that simple.

The list:
69 Suz U70
69 Suz T500
72 Suz GT750 cafe
74 Suz GTXVR project
75 Suz RE5
75 Suz GT750
76 Suz TS400
76 Suz GT750
81 Suz GSX1100
86 Suz RG500x2
88 Hon CR500
93 Hon CBR900RR
98 Suz GSF1200x3
15 Kaw Ninja H2


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PostPosted: Sun May 07, 2017 9:42 am 
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Joined: Sun Nov 18, 2012 7:18 am
Posts: 79
Country: Italia
Bikes owned: RG500 CR500 GS1000G
The original motor suffered from the excessive prolonged thermal stress, the control circuitry was subjected to.
You will find this to happen, when you take practice laps; brake rotors/calipers and tires, seemed to suffer too.
Will you excuse the late reply?!


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PostPosted: Wed May 10, 2017 6:30 pm 
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Moto GP
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Joined: Fri Oct 24, 2008 9:11 am
Posts: 4133
Location: Mostly Barbados, sometimes Florida and western Canada
To add to this, I remade the cables for the power valve spools to the motor, Now each one is a custom length with stainless halfnuts and rubber boots to cover the brass adjusters. I also shortened the freeplay distance so the adjusters are not screwed out as much as the stock ones for a better finish.
Now they look way better when mounted than the stock affair the factory conjured up.


Image
Three sets of the shorter cables completed, one set with the boots on.

_________________
Two strokes, its just that simple.

The list:
69 Suz U70
69 Suz T500
72 Suz GT750 cafe
74 Suz GTXVR project
75 Suz RE5
75 Suz GT750
76 Suz TS400
76 Suz GT750
81 Suz GSX1100
86 Suz RG500x2
88 Hon CR500
93 Hon CBR900RR
98 Suz GSF1200x3
15 Kaw Ninja H2


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PostPosted: Thu May 11, 2017 2:45 pm 
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Joined: Sun Nov 18, 2012 7:18 am
Posts: 79
Country: Italia
Bikes owned: RG500 CR500 GS1000G
Very clever.
Boots from...?


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