CHAPTER 8
WEIGHT AND BALANCE
8-10 Leveling
NOTE
Perform leveling and weighing in a zero-wind environment.
NOTE
Verify spirit level is calibrated by placing level on a designated
surface and noting bubble position. Rotate spirit level 180°;
verify bubble is in the same position.
8-11 Leveling for Weight and Balance
NOTE
Main rotor blade position does not affect weight and balance
calculations.
1. Jack helicopter per Section 7-10.
2. Refer to Figure 8-1. Place a spirit level laterally on F463-1 aft tunnel cover. Verify
cover is flat; if cover is not flat, remove cover and place spirit level across keel panel
flanges.
3. Adjust jacks at (landing gear) aft strut assembly jack lugs/tabs until helicopter is level
laterally.
4. Position spirit level longitudinally on aft tunnel cover, or atop left or right keel panel
if cover is removed. Adjust jack under ground handling ball until helicopter is level
longitudinally.
SEP 2012 R66 Maintenance Manual Chapter 8 Weight and Balance Page 8.1
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