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Old 12th Aug 2008, 17:37
  #100 (permalink)  
RVDT
 
Join Date: Nov 2006
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If you are doing them in a Bell 47, do them with the hydraulics OFF. All models except those with a 900 Series MGB (3B2's?) have the hydraulic pump driven by the engine.

In the old days it was Engine OFF, Hydraulics OFF, Rotor Tach covered, ears tuned and eyeballs like dinner plates.
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