P2002 Sierra
SECTION B
MAINTEN ANC E MAN UAL
pag.
B-4
2
st
Edition, April 22
th
, 2008
INSPECTION & SERVICING
4 LEVELLING
Occasional levelling of aircraft may be necessary to insure proper wing in-
cidence and/or dihedral or for exact CG location.
F
IGURE
B-2
L
ONGITUDINAL
L
EVELLING
4.1 LONGITUDINAL LEVELLING
To check the longitudinal levelling act as follows:
• Slide off one of the two seat to get the access to the two seat track’s
supporting trusses.
• Place longitudinally a spirit or water level over the two supporting
trusses using, if necessary, a straight piece of wood as indicated
into figure B-2.
• Adjust the aircraft’s tilt through shims placed under wheels or by
regulating tire pressure.
4.2 TRANSVERSAL LEVELLING
With one seat removed place a level along the forward seat track’s supporting
truss. Level the aeroplane by deflating the main gear tyres.
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