Stuttering Motor Mover

[DaveA1]

I have a Towsure Master Mover. That keeps stopping on the near side.

Have cleaned it and fitted new brushes. it then worked fine for a while, then it stops, take brushes out, clean and refit, works OK then stops. Just the Near side.

Could it be battery power , ?

i e near side motor being more sensitive to a power drop ??

 

[Woodentop]

Have you checked the batteries in the remote. Short movements - a few feet or so - then stop even though the button is still held down is usually remote batteries.

 

[DaveA1]

Have you checked the batteries in the remote. Short movements - a few feet or so - then stop even though the button is still held down is usually remote batteries.

I have a brand new battery in my pocket I'll go and try that now. Doesn't matter if it's dark, I will hear it.

 

[DaveA1]

Nooo didn't work

 

[Dustydog]

Dave , have you checked the movers power connections? Spray them after cleaning with electrical contact spray.

 

[ProfJohnL]

I have a Towsure Master Mover. That keeps stopping on the near side.

Have cleaned it and fitted new brushes. it then worked fine for a while, then it stops, take brushes out, clean and refit, works OK then stops. Just the Near side.

Could it be battery power , ?

i e near side motor being more sensitive to a power drop ??

Do you have any means to measure the battery voltage? Could it need to be charged?

To verify whether it is the voltage sensitivity, do you have another battery you could try - even a car battery would do.

And also it would really be worth checking all teh systems connections

 

[DaveA1]

Brushes change, contacts cleaned but not with contact cleaner, will get some in the morning. Battery voltage 12.5. Going to giving it another clean in the morning, if no good have my eye on a replacement motor.

 

[Dustydog]

Also check all the cables back to the master control box. Bad earth?

 

[Buckman]

Brushes change, contacts cleaned but not with contact cleaner, will get some in the morning. Battery voltage 12.5. Going to giving it another clean in the morning, if no good have my eye on a replacement motor.

At 12.5v putting a load onto it will probably reduce it to under 10v resulting mover not working.

 

[Mel]

You have checked the batteries in the remote, so not them. Could it be a dodgy remote connection. Can you plug the remote into the mover ( I seem to think that is possible on some)?
Mel

 

[DaveA1]

At 12.5v putting a load onto it will probably reduce it to under 10v resulting mover not working.

Going to connect multimeter to contacts, check voltage drop at motor.

I believe that 12.5 volts is only about 80% charged, is that correct??

Always turn charger off when operating the mover, would it do any damage to leave it on??

 

[otherclive]

240 v supply should be disconnected when using the mover.

 

[bertieboy1]

I have a Towsure Master Mover. That keeps stopping on the near side.

Have cleaned it and fitted new brushes. it then worked fine for a while, then it stops, take brushes out, clean and refit, works OK then stops. Just the Near side.

Could it be battery power , ?

i e near side motor being more sensitive to a power drop ??

1.Have you checked the voltage at the motor
2.Is nearside motor further away
3.Did you clean the commutator

 

[Buckman]

Going to connect multimeter to contacts, check voltage drop at motor.

I believe that 12.5 volts is only about 80% charged, is that correct??

Always turn charger off when operating the mover, would it do any damage to leave it on??

At 12.5v normally indicates that battery may need replacing? Should be at least 12.8v.

 

[DaveA1]

1.Have you checked the voltage at the motor
2.Is nearside motor further away
3.Did you clean the commutator

Hi
1 Voltage at the motor maintains 12.2volts at 20a.

2 when I fitted the mover went to great lengths to ensure all cables were the same length.

3 Done that today. contact cleaner all over the place.

 

[Anseo]

At 12.5v normally indicates that battery may need replacing? Should be at least 12.8v.

12.5 volts = 90% charged.
On it’s own it is certainly not a reason to replace a battery.

 

[DaveA1]

12.5 volts = 90% charged.
On it’s own it is certainly not a reason to replace a battery.

This is why I'm Flaffing a bit Not sure.

 

[DaveA1]

Left battery on charge over night, switch off, it stood for over two hours whilst I cleaned the motor. Particular the brush guides, as they didn't seen to move freely. Fare bit of carbon like substance flushed the rotor. let it dry.

Then tested the battery , it showed a reading of 12.6 flashing up to 12. 65 volts.
Mover running fine (at the moment) Voltage dropped to 12.2v no load speed on mover.
Will check later today to see what the standing voltage is.

 

[JTQ]

Then tested the battery , it showed a reading of 12.6 flashing up to 12. 65 volts.
Mover running fine (at the moment) Voltage dropped to 12.2v no load speed on mover.

For "no load" that is looking a bit sick hinting that "on load" it might drop below the motor mover's minimum voltage cut out, assuming that is a feature of the motor mover.
If so then the battery has lost capacity and gained resistance so whilst it can be "fully charged" the amount of energy held is now small.

 

[Hutch]

At 12.5v normally indicates that battery may need replacing? Should be at least 12.8v.

Rubbish, my battery runs the motor mover even at 11 volts.

Edit.. Sorry finger trouble, I meant 12 volts. 🤐

 

[Dustydog]

The on board volt meters are so inaccurate. In truth if it says 12 / 13 volts and everything moves and works, no worries. Yes your own multi meter will be more accurate.

 

[JTQ]

Rubbish, my battery runs the motor mover even at 11 volts.

But is your mover the same make and model as Dave's, a "Towsure Master Mover" ?

I suspect across the brands the electronic designs are not identical.

 

[Hutch]

But is your mover the same make and model as Dave's, a "Towsure Master Mover" ?

I suspect across the brands the electronic designs are not identical.

I was meaning more towards, the battery needing replacing, if your off grid, batteries get run down to 12 volts. And then recharged.

 

[Buckman]

I was meaning more towards, the battery needing replacing, if your off grid, batteries get run down to 11 volts. And then recharged.

If a battery is low and you use a motor mover you may have issues with it cutting out. I was repeating what i was told by the Powertouch technician when he fitted our AWD motor mover. When you apply load it will drop down considerably so probably not rubbish as you put it so eloquently!

 

[otherclive]

The two Powrtouch (Manual and auto) I have owned both stated that intermittent operation could be caused by battery voltage below 12 volts. I know the OP doesn’t have Powrtouch but I feel it’s minimum voltage could be virtually the same..11 volts for stable operation seems low to me. The table below is from Powrtouch.