The most important thing to remember is not to adjust any throttle linkage 'stops', the ones with the set screws and locking nuts. The proper way is to asjust the air bypass screw, the one with the spring. (I looked in my old MB ,anual, but it's position escapes me at the moment.) The injection pump is adjusted by the knurled knob on the end of the injection pump with the engine OFF! Do not engage with the engine running or the injection pump will be damaged.
Stay tuned for more, I have an old Chiltons manual I can use. Reply off list to me and I can scan some pages and e-mail them to you.