2012-05-03
The cord, indicating the input digit indicator, is missing. Try to find a good cord??
First test showed that the machine had two electrical problems:
+ first a leakage current to earth and
+ second after a while the motor starts to turn slowly in off position.
I noticed a massif carbon-powder pollution, from the carbon brushes. But after cleaning the situation leakage current remains the same. Leave problem to rest.
After a manual test with a crank, the machine blocked. The machine re oiled and after several try's the blocking was solved.

2012-05-07
The capacitors resistor module, shunting the two on/of switches getting a little warm after a minute test. The reason for the slowly start motor turning in off situation. The unit removed and replaced by an capacitor of .33uF and and two resistor of 4.7 Ohm in series. Problem solved.
The voltage on the frame, due to leakage current is between 16V - 22V above earth potential??? Leave the earth connection open for testing. The capacitor resistor and coil network on the motor seems ok for now. But there is perhaps a leakage?? Motor complete dismantled, no cause found.

2012-05-08
Calculations test past! But showed that the carriage is sometimes not locking well in the left end position (auto division and manual transport). The motor does not stop and tend to go in over-speed. Capacitors on speed regulation are not ok the opposite of the yesterday conclusion . When the speed is normal a light push to the carriage the locking is there and the motor stops. Stopping it at higher motor speeds only the mains connector can help. So carriage locking position has to be examine.

2012-08-12
I got new capacitors in the right size, from Paul Breedveld (exchange between collectors) for the motor printed circuit board and replaced them. These are now polypropylene types. This solved the over speed problem.

2012-10-17
The preliminary switch protecting network replaced by the axial type capacitor and a 5W resistor 10Ohm. Picture added.