Re: (ET) E10 motor problems

[David C Robie <mycroftxx1 juno com>]

Looks like you're on the right track electrically, Chip.  As to the tire,
be sure it aint a bad valve core (the spit bubble test after pumping it
up).   Quite often it's a rusty rim leaking at the bead.  A soap solution
brushed on with a paintbrush should find that. Try breaking the bead at
that point and cleaning it, and rust painting it.  There are some gunks
used by pro tire men that after wire brushing the bead they paint on.
   The stem itself could leak at the rim.  Again, soap solution to find
out.
If all else fails, no bubbles show anywhere on the tire rim or stem but
it still leaks down, dismount half of it, feel inside  for sharp points
that might be metal or some such in the tread.  If there ain't any, put a
tube in it.

Dave
Weymouth MA


    

On Sun, 5 Nov 2006 13:11:14 -0500 Chip Gribben <futurev radix net>
writes:
> Just an update on the E10 I'm working on for Albert Nunez,
> 
> This is the tractor that has the bad motor, the charger had been  
> bypassed with an Ez-Go golf cart charger, the batteries are flat and 
>  
> the rear tire keeps going flat. Several people on the list helped 
> out  
> with some ideas so I'd like to thank everyone for their help.
> 
> I did pull the motor, took it apart and sent it out to Jim Husted,  
> hoping he could rebuild it. Jim said the field winding was fried and 
>  
> it would cost about $250 to $300 to rewind the armature. So I opted  
> 
> to get a rebuilt motor from Harold.
> 
> While the new motor was on its way I pulled out the charger.  At 
> some  
> point during this tractor's life someone had done away with the  
> timer, installed a switch in it's place and rigged up an EZ-go golf  
> 
> cart electronic charger. The original diodes were disconnected and  
> replaced by a different type of diode from what it looks like.
> 
> Albert had mentioned the charger wasn't working so I decided to take 
>  
> the whole thing out while the motor was out. Apparently there was a  
> 
> small fire at the connector that goes to the primary transformer. 
> Two  
> of the wire were charred and the connector was melted.
> 
> But the old charger itself looked good. I checked the service manual 
>  
> wiring diagrams, traced and labeled all the wires and roughly 
> rewired  
> it back together again, skipping the timer portion and bypassing the 
>  
> burnt wiring harness with some scrap wiring. I plugged it in and the 
>  
> old charger was humming along great. I got a reading of 41 volts dc  
> 
> out which was good news. So I roughly rigged up the new batteries to 
>  
> the charger and plugged it in it was charging great getting a 
> reading  
> of about 43 volts.
> 
> So what I plan to do is clean up the charger, reconstruct the wiring 
>  
> harness with new connectors and wiring and get a new timer from  
> Harold and get it going to its original condition.
> 
> I still need to install the rebuilt motor. But since the charger and 
>  
> motor are out of the tractor I'm going to clean everything up before 
>  
> putting it back together.
> 
> I think there is still some hope left. Albert has been sending money 
>  
> as I need it to get it going again. So hopefully by next weekend I  
> can try it out. There is still the issue with the slow leak in the  
> rear tire.
> 
> My E-8 needs work as well. The brake rod broke so I'm going to make 
> a  
> new one. And I bought a fresh set of batteries for it when I bought  
> 
> the new ones for the E-10 so I'm going to to try to get that going  
> again this weekend.
> 
> Thanks for the help
> 
> Chip Gribben
> 
> 
> 
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