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Hybrid motor mover

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Posted

I have a powertouch  mover fitted , and a known issue is being very sensitive to battery voltage, 

The slightest dip, and it cuts out ,the direction button had to be pressed again , irritating

I have seen on eBay a couple of control boxes one stand alone , one complete with motors of which one has  stripped gears .

Thinking is to replace controller with one from different brand.

Being a retired electrician, i have obviously carried out a number of tests and concluded it is a controller issue, complete new mover is a bit ott ,so looking at hybridisation

So, has anyone done such a conversion.

 

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Posted

I have a complete Evo auto engage motor mover in our garage that is 5 years old.  We had an AWD fitted so this one is redundant waiting to be sold. Open to any tests.   If interested give us a shout.

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Posted

I with keep that in mind , I would only need controller,if i do replace.

I have since  found the circuit diagram plus other information, so some adjustments and tests to do .I now know the unit should  cut out at a battery voltage less than 10v ,but from previous tests, the voltage is always better than that. So battery  can be eliminated as a problem.

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Posted (edited)

I take it the cables from the battery to controller and to the mover are of a decent size, quality and not to long, if not your voltage drop could be there.

Edited by sdrew56

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Posted

The mover is OEM , cables "should" be ok , the battery is directly adjct to control unit , so little or no losses there , peak reading volt meter shows low volt drop at battery and control unit , so control unit suspect

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Posted

I think I have got to the bottom of the motor mover  issues .

Whilst thinking about a change of controller , I thought I would replace the drive rollers , the rough surface on each one was getting polished and less effective .

So with a new pair of rollers I set about replacing the old ones , Not quite a simple as Powrtouch (Truma) would have you believe , their instructions with pictures showed the work on a brand new drive roller set .

In real life corrosion due to dissimilar metals (aluminium and steel ) meant the old bearings were well and truly stuck in , some gentle persuasion with a Manchester screwdriver , and the old rollers and bearings were removed .

Then I found the problem , one roller was stiff with well worn bearings , the other was all but seized .

New rollers , re greasing cogs , adjusting clearance , and at last a caravan that moves smoothly on command .

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