Re: Scooter problems



(not quite so) Fat Sam wrote:
Temprance wrote:
I don't wish to have to spend a lot of money which I have not enough
of so can anybody give me their thoughts on what is wrong with my
Mercury M48 Scooter. I've got a glitch where all of a sudden it slows
right down and then picks up again. A bit scary as I don't want to be
stuck somewhere. It did it today and about 40 seconds before the power
came back. According to my manual it should beep at me when something
is not working but so far it has remained silent.


temprance

Sounds to me like it could be a problem with the rheostat that forms the throttle mechanism.
It may be damaged, or it might need cleaning.
Is there any regularity to it?
Does it always happen when you hit the same speed?

Or does it happen when you go over rough surfaces? That might just suggest somethng as simple as a loose connection or a cracked solder joint.



Wow, I haven't seen a speed controller with a rheostat for, oh, more years than I can remember. IME, they all use pwm controllers, these days. YMMV.

If you mean "potentiometer", I dare say that the OP gave the throttle a good old waggle when it stopped. So any poor contact point would have been moved off, quite quickly.

As you say, the key thing is "how regular". If it always takes near enough the same length of time to recover, then it sounds like intent is at work rather than something random (like bad connections). That sort of time sounds like an overload/overtemperature trip resetting itself.

Or it could be something very simple and possibly not really a fault at all. I know one owner who found that the space by the controller got nice and warm, so thought it a good place to keep her anaorak hood. Unfortunately, it got even warmer, as a result...

Of course, every time it was tested, it was without the hood and all was fine.. Oh we laughed when the penny finally dropped:(
--
Sue



.



Relevant Pages

  • Re: how to vary the speed of a 110vac 28w muffin fan?
    ... I have a Comair Rotron Caravel 240VAC fan and it is fitted with a EBM Ziehl speed controller. ... I presume from the fact the fan induction motor can be spped controlled it may be shaded pole. ...
    (rec.crafts.metalworking)
  • Re: Safe router speed for larger bits??
    ... The3rd Earl Of Derby wrote: ... Could you not buy an external router speed controller? ... I was wondering if there was a controller that would work. ... With your speed controller not working, does you soft start still work? ...
    (rec.woodworking)
  • Re: OT Vent Axia fans
    ... >Anyone happen to know how the speed controller works on a Vent Axia ... >When turned on the fan will jerk in a direction set by the controller ... >I presume that the controller somehow gives a phase shift to one of ...
    (uk.rec.models.engineering)
  • OT Vent Axia fans
    ... Anyone happen to know how the speed controller works on a Vent Axia ... When turned on the fan will jerk in a direction set by the controller ... I presume that the controller somehow gives a phase shift to one of ...
    (uk.rec.models.engineering)
  • Re: OT Vent Axia fans
    ... >Anyone happen to know how the speed controller works on a Vent Axia ... >When turned on the fan will jerk in a direction set by the controller ... Peter A Forbes ...
    (uk.rec.models.engineering)