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ManualsBrandsSharp ManualsDomestic AppliancesR-22AMM
81828384858687888990
13773-001
8-10
Page 1
LEVELING
1. DESCRIPTION
This chapter provides information necessary to properly level the airplane for any of the various mainte-
nance, overhaul, or major repairs which might become necessary. The cabin door sill edge is parallel
within 0.10° relative waterline 100. The door sill is used in conjunction with a spirit level to determine air-
plane ground attitude. Two forward leveling points are located on either side of the cowl at fuselage station
99.00. One aft point is located on the tailcone access flange under the horizontal stabilizer on the right
side, at fuselage station 299.00. The leveling points are used in conjunction with a transit to determine
ground attitude.
2. MAINTENANCE PRACTICES
A. Leveling the Airplane
(1) Longitudinal Leveling - Spirit Level Using Pilot’s Door Sill (See Figure 8-101)
(a) Acquire necessary tools, equipment, and supplies.
(b) Open pilot side door.
(c) Place spirit level on top and parallel to door sill, centered.
(d) To level airplane longitudinally, deflate nose gear tire to center bubble in level.
(2) Longitudinal Leveling - Optical Level Using Fuselage Leveling Points (See Figure 8-101)
(a) Acquire necessary tools, equipment, and supplies.
(b) Remove screws at longitudinal leveling points located on side of fuselage at FS 99, FS-
299, and WL 95.9.
(c) Position and sight optical level on leveling points and observe optical level light beam.
(d) To level airplane longitudinally, deflate nose gear tire to center optical level light beam on
leveling points.
(3) Lateral Leveling (See Figure 8-101)
(a) Acquire necessary tools, equipment, and supplies.
(b) Open both doors on airplane.
(c) Place a straight edge on top and perpendicular to door sills, centered.
(d) Place level on top and parallel to straight edge, centered.
(e) To level airplane laterally, deflate main gear tire to center bubble in level.
Description P/N or Spec. Supplier Purpose
Spirit Level - Any Source Level the airplane.
Description P/N or Spec. Supplier Purpose
Optical Level - Any Source Level the airplane.
Description P/N or Spec. Supplier Purpose
Spirit Level - Any Source Level the airplane.
Straight Edge - Any Source Level platform.
30 Nov 2000