GarryA
New Member
Brand new member, well, a few months member. but new to this posting lark, so If I do something wrong, please tell me
I recently posted a problem with a secondhand Siba Dynastarter in another thread. I was told that I might get a better response with a new thread. so here is the problem.
As I said, tell me if I am doing this wrong somehow.
Just obtained an old second-hand Siba DS3111 Dynastarter for my Petter PE2. (I think it is a DS3111. At least that is what I think it says on the Siba Plate riveted to the body. The plate is somewhat damaged - see image) It has four terminals on the endplate, but none on the body/casing at all. The four terminals are, two studs and nuts terminal about three eighths inch Dia. One of which is grounded direct the end plate and the other (which I assume is the starter side) is the same size stud, but this one is insulated Then there are the two small spade terminals, the standard size terminals you would expect to find on the back of 12V switches and instruments. Both terminals are the same size which I am assuming are the dynamo and field windings. As an aside, I would have expected the D+ terminal, if one of the terminals was the D+ that is, to be larger than the F terminal. Am I right in this assumption?
Before I strip the thing right down and start again, does anyone know the readings I should have on an AVO meter between each of the terminals and/or earth so I can determine which is which? i.e. which is DF and which is D+ for example.
At the moment, a 12V battery (- to earth and + to the gert* big terminal) produces a very weak spark but nothing else. No rotation of pulley). Spinning the pulley by hand, albeit very slow, produces nothing on an AVO meter from either of the small spade terminals, neither when connected to earth nor to each other.
My first impression was that the large terminal (with the white tag) should be the starter terminal but connecting this via a 12v battery + and the - wire to earth/chassis produces a small spark but no rotation
Spinning by hand gives a free rotation that continues after you stop spinning it. A slight sound of brushes against commutator but no rough bearing sound though. No sign of stopping the shaft from spinning if I do the "earth to field" test, not on any of the terminals.
The seller claimed that it had been rewired and then stored. Rewired by whom, when, or why, he did not say.
Only one more thing to say....... HELP! PLEASE!
(*Translation( Gert = Sussex language for Very big))
I recently posted a problem with a secondhand Siba Dynastarter in another thread. I was told that I might get a better response with a new thread. so here is the problem.
As I said, tell me if I am doing this wrong somehow.
Just obtained an old second-hand Siba DS3111 Dynastarter for my Petter PE2. (I think it is a DS3111. At least that is what I think it says on the Siba Plate riveted to the body. The plate is somewhat damaged - see image) It has four terminals on the endplate, but none on the body/casing at all. The four terminals are, two studs and nuts terminal about three eighths inch Dia. One of which is grounded direct the end plate and the other (which I assume is the starter side) is the same size stud, but this one is insulated Then there are the two small spade terminals, the standard size terminals you would expect to find on the back of 12V switches and instruments. Both terminals are the same size which I am assuming are the dynamo and field windings. As an aside, I would have expected the D+ terminal, if one of the terminals was the D+ that is, to be larger than the F terminal. Am I right in this assumption?
Before I strip the thing right down and start again, does anyone know the readings I should have on an AVO meter between each of the terminals and/or earth so I can determine which is which? i.e. which is DF and which is D+ for example.
At the moment, a 12V battery (- to earth and + to the gert* big terminal) produces a very weak spark but nothing else. No rotation of pulley). Spinning the pulley by hand, albeit very slow, produces nothing on an AVO meter from either of the small spade terminals, neither when connected to earth nor to each other.
My first impression was that the large terminal (with the white tag) should be the starter terminal but connecting this via a 12v battery + and the - wire to earth/chassis produces a small spark but no rotation
Spinning by hand gives a free rotation that continues after you stop spinning it. A slight sound of brushes against commutator but no rough bearing sound though. No sign of stopping the shaft from spinning if I do the "earth to field" test, not on any of the terminals.
The seller claimed that it had been rewired and then stored. Rewired by whom, when, or why, he did not say.
Only one more thing to say....... HELP! PLEASE!
(*Translation( Gert = Sussex language for Very big))
