* '''Documentation '''
   * [./manual-filling-LN2 Instructions to fill with LN2 the CCD's dewar]
   * [./Pumping-quick-guide Pumping Procedure quick guide]
[[Image(70cmTeleskop-Pumping-procedure-1.png, left, width=350,margin-right=30, title="Pumping Procedure quick guide", longdesc="Pumping Procedure quick guide")]]