motor mover not engaging

[Caravanrevisited]

Hi, we have just ought a 2007 caravan, that is equipped with Powrtouch mover:

First, we tried to identify the model. Powrtouch issue an ID guide suggesting the serial number /model number should be etched on the end of the motor. it is not, and the format is not as suggested. Mine has a data plate with the serial number : 203/013053. Can any one say what the model is?

The actual problem is that the mover disengages when on the move. The previous owner insists it was okay, but they have not used for a 3 years or so. one side was 30mm, rather than the required 20mm, which we have now adjusted, but still the problem persists. the root cause, we think s that it is not engaging properly, but we cannot see exactly how this should happen.The manual says the nut should be rotated about 200degrees. but we can manage only about 170 degrees. The roller is definitely the small roller.

Until the rollers pop out, they do move the wheels.

Another question: When selecting sideways movement, is the 'van just supposed to spin on the axis, or move as one would with a car?

I hope someone can help, thanks very much for reading
Edited just now by Caravarevisited

 

[otherclive]

Is it the Powrtouch Classic where the rollers are hand cranked on to the tyres? I know it sounds obvious but using the supplied wrench the initial rotation of the nut brings the rollers to the tyres, but then considerable force is required to make the extra rotation that brings the rollers into hard contact, after which they are effectively locked to the tyre. I always used a telescopic wheel wrench to gain extra leverage required to get force required for positive contact. Could that be why you only get 170 degrees and not 200 degrees rotation.

 

[audiorob]

If you google ‘power touch classic fitting’ you will find an A4 printable fit and use guide if this hasn’t been given by the previous owner

 

[Dustydog]

Is it the Powrtouch Classic where the rollers are hand cranked on to the tyres? I know it sounds obvious but using the supplied wrench the initial rotation of the nut brings the rollers to the tyres, but then considerable force is required to make the extra rotation that brings the rollers into hard contact, after which they are effectively locked to the tyre. I always used a telescopic wheel wrench to gain extra leverage required to get force required for positive contact. Could that be why you only get 170 degrees and not 200 degrees rotation.

Mines the same Clive. If there‘s a curb the Powrtouch wrench gets fouled and doesn’t fully engage the rollers . Thanks to the cross actuation system using the O/S allows full engagement. And it is very very hard needing all my slim body weight🤪🤪

 

[Caravanrevisited]

Thank you all. The problem really was that Icould not envisage exactly what was happening with the mechanism. Dismantled it, set it back a bit further and all is well. I suspect that I will struggle on a slope, but it is actually straightforward to adjust, now I know what I am doing.Just adding the appropriate sized spanners, ratchet and fixed to the kit bag.

Thanks again

 

[trevormonty]

Can remove actuation bar joining two movers. Means engaging each individually but should need less effort. Then see which one disengages when in use.

Check tire pressures aren't low.

 

[Hutch]

Thank you all. The problem really was that Icould not envisage exactly what was happening with the mechanism. Dismantled it, set it back a bit further and all is well. I suspect that I will struggle on a slope, but it is actually straightforward to adjust, now I know what I am doing.Just adding the appropriate sized spanners, ratchet and fixed to the kit bag.

Thanks again

There are two 8mm Allen key screws on the retainer plate which after all the bolts are tight, then the Allen bolts need to be tightened. Also I found on one of my motor movers the 1/8th in roll pin in the cross linkage were bending , not allowing correct locking of the opposite side. I drill this out and fitted 3/16th " pins. But you sound as though you have it all in hand.

 

[trevormonty]

If you test on slope make sure it is restrained ie rope from drawbar to cars towbar or other anchor point.
While I have faith in mine still like to attach a rope until van is off my sloping driveway. If MM fail next stop is downhill across road and into neighbours fence or car.

 

[ProfJohnL]

If you test on slope make sure it is restrained ie rope from drawbar to cars towbar or other anchor point.
While I have faith in mine still like to attach a rope until van is off my sloping driveway. If MM fail next stop is downhill across road and into neighbours fence or car.

And make sure if you have to go close to the caravan when its on a slope stay up hill of the caravan.,

 

[Caravanrevisited]

There are two 8mm Allen key screws on the retainer plate which after all the bolts are tight, then the Allen bolts need to be tightened. Also I found on one of my motor movers the 1/8th in roll pin in the cross linkage were bending , not allowing correct locking of the opposite side. I drill this out and fitted 3/16th " pins. But you sound as though you have it all in hand.

I don't recall seeing Allen screws! When you say "retainer plate", do you mean the separate block?

 

[Hutch]

No, the main upper plate where the two "U Bolts" go up through, you might need a mirror to see them. The screws come down from the top nd then grip onto the Alko chassis.