Technical data

13773-001
32-10
Page 6 30 Nov 2000
(4) Adjustment/Test - Wheel Toe-In Check (See Figure 32-103)
Correct wheel alignment plays a critical role in maintaining tire wear and should be checked
whenever abnormal or excessive wear is noted. To correct wheel alignment the airplane is
placed on greased-slide plates which allow the main wheels to easily assume their true align-
ment position. Shims are inserted or removed to adjust camber and toe-in. Measurements are
taken on wheel flange.
(a) Acquire necessary tools, equipment, and supplies.
(b) Remove main landing gear fairings. (Refer to 32-10)
(c) Remove nose landing gear fairing. (Refer to 32-20)
(d) Place airplane on level surface.
(e) Ensure airplane is at maximum gross weight. (POH 1-7)
(f) Ensure tires are properly inflated. (Refer to 12-10)
(g) Place metal slide plates approximately 16 inches square in front of each main gear wheel.
Grease surface of bottom plate and place top plate of same dimension over bottom plate.
(h) Roll main gear wheels onto greased metal slide plates.
(i) Establish airplane centerline by dropping plumb bob line from forward center position
(located immediately aft of nose landing gear bridge) and from aft center position (located
at tail tie down). Draw chalk line between two plumb bob points.
(j) Establish perpendicular line to airplane centerline just forward of main wheels using inter-
secting arc method
(k) Using squares, wood blocks, and straightedge, position straightedge parallel to second
chalk line just below axle nut.
(l) Roll airplane forward until tires just touch straightedge.
(m) Place two marks on wheel flanges just below axle nut 6.5 inches apart, level.
(n) Place framing square against straightedge and level with wheel flange marks. Measure
distance between blade of framing square and front and rear flange marks and determine
distances X and Y. Toe-in = X-Y.
(o) If toe-in angle is not within specified tolerance, determine which shim combination will
establish specified tolerance and adjust.
(p) Install main landing gear fairings. (Refer to 32-10)
(q) Install nose landing gear fairing. (Refer to 32-20)
Description P/N or Spec. Supplier Purpose
Plumb bob - Any Source Establishing air-
plane centerline.
Straightedge - Any Source Aid in measuring
toe-in.
Framing squares - Any Source Aid in measuring
toe-in.
Wood blocks - Any Source Aid in measuring
toe-in.