Technical data

13773-001
27-30
Page 12 30 Nov 2000
(3) Adjustment/Test - Pitch Trim Cartridge
(a) Acquire necessary tools, equipment, and supplies.
(b) Remove access panels RE1 and RE2. (Refer to 6-00)
(c) Set elevators to neutral position using BL 12 and BL 60 templates.
1
Align elevator trailing edges to horizontal stabilizer chord line. To move elevator trail-
ing edge up, lengthen push/pull rod by loosening jam nut and turning rod counter-
clockwise. Shorten push/pull rod for opposite results.
(d) Fasten inclinometer to elevator and set at 0°.
(e) Run trim motor to full nose-down trim position until travel is stopped by lower limit switch.
(f) Adjust elevator push/pull rod so elevator deflection angle is -10.5° +/-1.0°:
1
To increase elevator trailing edge (TE) down movement, shorten push/pull rod by
loosening jam nut and turning rod clockwise
2
Lengthen cartridge for opposite results.
(g) Run trim motor to full nose-up trim position until travel is stopped by upper limit switch.
(h) Adjust elevator push/pull rod so minimum elevator deflection angle is +17°:
1
To increase elevator trailing edge (TE) up movement, lengthen push/pull rod by
loosening jam nut and turning rod counterclockwise.
2
Shorten cartridge for opposite results.
(i) Perform Pitch Trim Cartridge Inspection/Check. (Refer to 27-30)
(j) Verify trim cartridge minimum rod end thread engagement of 0.312 inch (0.79 cm).
Tighten jam nuts.
(k) Instal access panels RE1 and RE2. (Refer to 6-00)
(4) Inspection/Check - Pitch Trim Cartridge
(a) Acquire necessary tools, equipment, and supplies.
(b) Verify correct elevator system rigging. (Refer to 27-30)
(c) Fasten inclinometer to elevator and set at 0°.
(d) Run trim motor to full nose-down trim position until travel is stopped by lower limit switch.
(e) Verify elevator deflection angle is -10.5° +/-1.0°°. If pitch trim is out of adjustment, perform
Pitch Trim Cartridge Adjustment/Test. (Refer to 27-30)
(f) Run trim motor to full nose-up trim position until travel is stopped by upper limit switch.
(g) Verify minimum elevator deflection angle is +17°. If pitch trim is out of adjustment, perform
Pitch Trim Cartridge Adjustment/Test. (Refer to 27-30)
(h) Remove inclinometer.
(i) Verify positive clearance between trim cartridge and actuation pulley under full range of
trim motor positions.
Description P/N or Spec. Supplier Purpose
Inclinometer PRO360 Maclanburg Duncan Deflection Angle
Determination
Description P/N or Spec. Supplier Purpose
Inclinometer PRO360 Maclanburg Duncan Deflection Angle
Determination