AM.II.E.S5

From the FAA library

• Aviation Maintenance Technician Handbook - Generalp. 6-14
  Chapter 6: Aircraft Weight & Balance › Weighing Points › Jacking the Aircraft

  Jacking the Aircraft Aircraft are often weighed by rolling them onto ramps in which load cells are embedded. This eliminates the problems associated with jacking the aircraft off the ground. However, many aircraft are weighed by jacking the aircraft ... then lowering them onto scales or load cells. Extra care must be used when raising an aircraft on jacks for weighing. If the aircraft has spring steel landing gear and it is jacked at the wheel, the landing gear will…

• Aircraft Weight and Balance Handbookp. 3-4
  Chapter 3: Weighing the Aircraft and Determining the Empty Weight Center of Gravity › Preparation for Weighing › Jacking the Aircraft

  control surfaces for weighing. When weighing a helicopter, the main rotor must be in its correct position. Jacking the Aircraft Aircraft are often weighed by rolling them onto ramps in which load cells are embedded. This eliminates the problems associated ... with jacking the aircraft off the ground. However, many aircraft are weighed by jacking the aircraft up and then lowering them onto scales or load cells. Extra care must be used when raising an aircraft on jacks for weighing…

• Aviation Maintenance Technician Handbook - Airframep. 13-14
  Chapter 13: Aircraft Landing Gear Systems › Landing Gear Types › Bleeding Shock Struts

  This can be caused by low hydraulic fluid quantity in the strut. Bleeding is normally done with the aircraft on jacks to facilitate repeated extension and compression of the strut to expel the entrapped air. An example procedure for bleeding ... valve port. Ensure a long enough hose to reach the ground while the aircraft is on jacks. 2. Jack the aircraft until the shock struts are fully extended. 3. Release any air pressure in the shock strut. 4. Remove…