Leveling is accomplished by jacking the helicopter to level the main
rotor hub both laterally and longitudinally, using either of the
methods described below.
Spirit Level Method
Place spirit (bubble) level on top of main rotor hub
(Fig. 7-3) so that bubble glass is parallel to helicopter
centerline.
Using jacks, raise or lower aft fuselage as required to
level helicopter along longitudinal axis.
Reposition bubble level so that bubble glass is in lateral
plane (perpendicular to helicopter centerline). Adjust jacks as
required to level helicopter on lateral axis.
Check level in both planes and readjust jacks as necessary.
Plumb Bob Method
Flip up center seat cushion as required to expose target on
center seat pan. From inside surface, insert plumb bob
cord thru hole provided in R.H. canopy frame. Adjust cord
length to position plumb bob approximately 1/8 inch above
target.
Using jacks, adjust height of helicopter along the
longitudinal and/or lateral axis until the plumb bob is
aligned with the center of target.
7-12. COLLECTIVE STICK INSTALLATION AND REMOVAL
To install collective stick set the N
1
control lever (mounted on the
engine) to 30°. Align the yellow mark (the smaller of the two
notches) on the collective grip with the white line on the collective
stick. Insert the collective stick into the housing assembly and
secure. Check each throttle and collective stick for proper travel and
freedom from interference. If throttle is not within limits refer to the
Handling, Servicing & Maint.
Schweizer RSG, LLC.
Model 269D Helicopter
7-11. LEVELING
Pilot's Flight Manual
7-19
R
eissued: 16 Jan 2019
Book 3.indd 181 8/4/19 1:25 PM
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