I am very glad having a version 8 of this machine series. The nine machine was my first mechanical calculator. The one where the collection start with.

2013-08-27 The first check showed that the machine is not moving the keyboard scanning and the keys are not possible to activate.
The machine case and key board removed. The handle was now possible to pull. One decimal was moving others stayed in position.

2013-09-02 The central axis, where the key board scanning plates are turning, is possible to screw in order to create more space for the oil to penetrate. A few ours waiting and with a little manual help first, all plates are easily movable.
The machine completely cleaned internally to remove the hardened oil and dirt. Dry it and re oiled it again. Mount the key board and placed spare key tops.

2013-09-03 The printing mechanism small rollers, who presses the paper gains the main transport roll, are not round anymore. This is used by the long stay and pushing against the main paper roll. The are loose from their axis. Reconstruct these with a nylon bare and crimp rubber. This worked well. (The transport is now on the same distance each pulling of the handle.)

Assembled the whole to getter and perform successfully the calculation tests.