Oil pump test bench / Ölpumpenprüfstand Holder Sachs 600 Ivo Vögele

thingiverse

This is a test bench for the IVO Vögele oil pump which is fitted on the Sachs 600 Diesel Engine used in many small tractors like Holder A12, B12, E12. I use a stepper motor and the A4988 motor driver to turn the pump a defined number of times. To be able to customize the design to other oil pumps I add the source code for your convenience. For the Sachs 600 engine please note that the test bench must turn counterclockwise when looking straight on it (*before* mounting and testing the oil pump). If this is not the case you should twist the connector of the stepper motor by 180 degrees. In addition to the printouts you need: 4x M3x35mm countersunk head screws transparent tube with inner diameter 6mm (about 1 meter long) disposable syringes as reservoirs for the oil and for measuring the volume (I use three of those) arduino or ESP8266 or something alike power supply for the arduino or ESP8266 power supply for the A4988 (and thus in turn for the stepper motor) -- here I used an old laptop AC/DC adapter stepper motor NEMA 17 Please note: the code is currently parameterized for 200 steps per revolution. If your stepper motor has a different number of steps, please change this in the code. Otherwise you get the wrong number of turns.