Carver (Truma) Twin Axle motor mover fault

[Kingsley_5096288]

Hi

My motor mover has stopped working on one side - sounds like the motor is running but no drive. Wonder if the chain has snapped but not sure.

I've had stacks of problems with this mover since we got it a year ago (I think it was new on the 04 van it was on).

Anyone else had similar or ideas as to a fix?

Merry xmas

Kingsley

 

[trevor11sqdn]

My Carver (single axle ) mover let me down so many times I lost all faith in it.Had Ciruit boards replaced etc but it was never totally reliable. In fact, it was at this exact time last year that we were trying to depart for the Xmas break in Devon and it took 4 hours to get the van off the drive due to the mover cutting out.

Now have a Powrtouch twin axle mover, superb !!!

 

[Val & Frank]

Hi Kingsley,

Don't know for sure but if you swivel the drive unit using the socket will it move then ?? I think this will show if the chain is ok or not.

Val & Frank

 

[vauxhall2]

could be a snapped chain or pin holding the roller,see

http://www.trumauk.com/schematics-and-part-numbers/movers-schematics/original-twin-axle/

 

[Surfer]

Had the same problem shortly after installation. Something to do with the roller not engaging due to a broken "pin". If we ever exchanged caravans I doubt very much of I will have another Truma fitted.

 

[Jo-AnneFairway5402010]

my in laws had a truma fitted on the new twin wheel abbey spectrum. it didnt work well at all and didnt do what it said on the tin. in the end they paid for a twin reich mover and have never looked back. it cost them the difference in price then about another

 

[Jo-AnneFairway5402010]

hi i forgot to say we have a reich on our single wheeler and its fantastic. you could do a 360 circle on a penny. well worth

 

[Kingsley_5096288]

Hi

Thanks to all the responses.

We went away to Edinburgh CC over new year and found the mover would run unengaged but right was slower than the left - so the drive is in place but once we engaged it the thing would not drive on the right.

Maybe the motor is clapped?

rgds

kingsley

 

[BeemerMal]

Hi, We had a similar problem with our 2005 T/axle Carver mover after less than One season. It was a snapped rod that prevented one side engaging. Our dealer replaced this under the Carver guarantee....but I think this is a very poor design because the rod itself is only about a 1/4 inch in diameter and it is drilled through the centre to take a split pin through it.

This means there is less than 1/8th inch of rod holding the mechanism together. Not, in my opinion man enough for the job?

 

[gary]

The 'drilled pin' is infact a 'Roll pin' made of very tough material and therefore under normal circumstances should do it's job. I don't know why the pin should snap but if they do then better for the pin to snap before more serious damage is caused by overloading the drive chain, under these circumstances the pin is now acting as a 'shear' pin.

A friend has fitted Carver movers for 11 years or more and never changed a roll pin!, he suggests first fitting new batteries to the remote cures many strange problems.

Other than that check all wiring and connections for damage or looseness and that no water has built up in the rubber boot covering the motor connections. If yours has an aerial wire that is hanging through the same floor hole as the motor wiring then that will cause all sorts of problems and needs re-routing.

 

[BeemerMal]

The 'drilled pin' is infact a 'Roll pin' made of very tough material and therefore under normal circumstances should do it's job. I don't know why the pin should snap but if they do then better for the pin to snap before more serious damage is caused by overloading the drive chain, under these circumstances the pin is now acting as a 'shear' pin.

A friend has fitted Carver movers for 11 years or more and never changed a roll pin!, he suggests first fitting new batteries to the remote cures many strange problems.

Other than that check all wiring and connections for damage or looseness and that no water has built up in the rubber boot covering the motor connections. If yours has an aerial wire that is hanging through the same floor hole as the motor wiring then that will cause all sorts of problems and needs re-routing.

Gary,

I accept what you say but my dealer has had to change a number of these rods and their engineer said that it is invariably the twin axle vans that have the cross actuation bar fitted that are the real problem.

Like another poster, my van is an Abbey Spectrum and although the mover works ok (very,very slow) it is not as good as the single axle version I had on my last van. My dealer says this is normal for T/axle vans?

 

[gary]

Gary,

I accept what you say but my dealer has had to change a number of these rods and their engineer said that it is invariably the twin axle vans that have the cross actuation bar fitted that are the real problem.

Like another poster, my van is an Abbey Spectrum and although the mover works ok (very,very slow) it is not as good as the single axle version I had on my last van. My dealer says this is normal for T/axle vans?

I understand they do work more slowly that's the nature of the design, but I forgot about this being only a T/A problem.

Movers are the only bit of ex-Carver kit that I have nothing to do with and hence I asked someone that does. His knowledge of twins is also lacking because of the relative small number he's fitted but still says "never changed any pins"

Thinking it through, the T/A turning exerts far greater force on the drive train than the single axle, I'm led to believe the motors are 'pulsed' while they are turning and as far as I know the control does not until very recently have 'soft start'

Pulsed?, not sure what that means but I imagine the motors are switched on and off in quick succesion to 'shuffle' the van around. Soft start is not there for your benefit but to reduce current loadings on the relays when switching on/off. Secondary to this, the motors receive a controlled current increase so turn slowly from rest up to full speed rather than 'all or nothing!. This slow start is nice for you but even better for the drive train that suffers far less shock.

Given all the above is correct those three combined to my mind are going to put a large 'shock' load on the drive train while all this switching is going on. So it still applies the 'drive/shear pin' being the weakest link will limit any damage to itself.

Whether or not the pin could be made slightly stronger is one possible solution but the problem does not appear to be universal? So it could be exactly how some people use the mover which is tipping the balance.

Vauge I know but I've just fitted a Carver S/A mover to mine and when I've sorted the juddering on that I'll know better!!

 

[damon_374301888]

DONT WASTE YOUR MONEY ON A TRUMA MOVER ! We had a 'top of the range !!' Truma mover with elec engagement fitted to our twin axle Bessacarr 625 and it has been nothing but a nightmare. It was fitted Dec 06 and so far has been back to the dealer 3 times for repairs ranging from remote failing to register (now sorted) but from day one it has slipped on one side when turning. When I complained again the other day the over helpfull technical response was "well weve done all we can so dont know why it wont work !". Its in for repair again this week and if it fails again then its coming off and I will let the county court decide how good Trumas products are.

 

[Val & Frank]

Damon,

Back to the Dealer " Three times in 3 months " ?? and this over the Winter Months ?? We have a TA with a Truma TE fitted, so far so good. Will test it out again tomorrow, and let you know how it gets on.

Val & frank

 

[artfulbodger]

I self fitted a Truma TE in October 06 and have had no problems at all with it and reguarly use it to put my van on a steep driveway. Damon, with regards to one side slipping is the tyre to roller distance set correctly?? The kit comes with a distance piece to check this

 

[Val & Frank]

Damon,

Used the Truma TE at the weekend. It moved the van across grass and gravel with no problem at all. So it does look as though you have a duff unit or the fitting has been done incorrect.

ps We also have a heavy van

Val & Frank

 

[damon_374301888]

All - thanks for your replies. The van is back and its working and the comment from the installing dealer is that Truma have revised the settings from 20 to 15mm to overcome this problem.