solo

I desperatley need help here.
Can any one with the TA 750 system please tell me when idle what micro switches are making contact and which are not.
I had trouble with mine and had to strip them down and now need to know how to position the micro switches.

maninblack

hi mate
if i read the question write idle shold be micro just clearing piston thread bar thats what mine are in idle (stop) position TOP MICRO thread bar just touching BOTTOM MICRO stop from tank just touching hope this helps
M.I.B

solo

Thank you for your prompt reply.
Top micro (on center threaded spindle) Touching I understand on the bottom stop from tank I have two micro switches should both be touching or one ,and if one, which one

maninblack

hi mate
top micro should be just touching spindle , bottom micro should be just CLEAR of stop from tank
hope this helps mate
M.I.B

Mankster

The micro switch in contact with the treaded rod is there to sense the 'tank empty' postion. Of the other two micro switches, 1 senses the 90% full, the other the 100% full. This is actived by the sping loaded plunger and not the threaded spindel. You'll see than the plunder has an inner and outer portion. When the tank empty or less than 90% full the inner part of the plunger is just touching but not activating the first microswitch furthest away from the tank. When the tank is 90 % full the face of the presses on the plunger and activates the first miro switch. As the tank fills past 90% the outer part of the plunger begins to protrude and activates the second microswitch at the 100% full position, which stops the filling process.

Screw Loose

Hi there Solo, I know the other lads have answered you question. But if this is any help heres a picture of mine when there "Empty".





Regards

Paul

solo

Many thanks to you all I now have enough information to reassemble my tanks. I am waiting the arrival of a new board as I think the old one was faulty. The spindle would not stop on the empty tank cycle and finally blew the board and distorted the tanks.
Your replies and especially the photograph have been a great help to me

solo

Paul
one more thing you could really help me with is the wiring of the tanks. Looking at your picture mine do not seem to be wired the same way.
With the board contacts 54321 and 54321 would it be possible for you to tell me which you have wired to each.
Sorry if this seems a lot to ask but I really do not want to blow another board
Regards
Ray

Screw Loose

Yea no problem Ray. I am heading over to there to do a bit more on mine this afternoon, I will have a look and see if I can take a picture of it and a wireing diagram.

Paul

Screw Loose

Ray, I appologise about not getting back sooner. Have had a bit af a hectic day. I have been looking through some old pics but cant find one that shows the wiring clearly.

I must admit between the computers hard drive dismantling itself, and my new cars oil cooler spilling the entire contents of the engine all over the road I havnt had a great deal of time to dismantle the wiring. Its been a good day

I have the wiring diagram handy, which is a line diagram and I can tell you which position I put mine to. I will dig it out now and see if I can get the sequence right.

Should have it by tommorrow afternoon. Again sorry for the delay Ray.

Paul