(d)
Set the STAB TRIM 3 switch on the control stand to CUTOUT.
(e)
Make sure the two stabilizer trim indicators show 11.35-11.85 units of trim.
(f)
Set the STAB TRIM 3 switch on the control stand to ON.
(g)
Hold the STAB TRIM switches on the captain's control wheel to NOSE DN until the stabilizer stops.
(h)
Set the STAB TRIM 3 switch on the control stand to CUTOUT.
(i)
Make sure the two stabilizer trim indicators show 1.55-2.05 units of trim.
(j)
Set the STAB TRIM 2 and 3 switches on the control stand to ON.
S 715-006
(4)
Do a test of the alternate electric limit switches on the left side with the landing gear retraction simulated:
(a)
Set the STAB TRIM 2 switch on the control stand to CUTOUT.
(b)
Use the STAB TRIM switches on the captain's control wheel to set the stabilizer at 7-8 units of trim.
(c)
Hold the STAB TRIM ALTN switch on the control stand to APL NOSE UP until the stabilizer stops.
(d)
Set the STAB TRIM 3 switch on the control stand to CUTOUT.
(e)
Make sure the two stabilizer trim indicators show 14.50-15.00 units of trim.
(f)
Set the STAB TRIM 3 switch on the control stand to ON.
(g)
Hold the STAB TRIM ALTN switches on the control stand to the APL NOSE DN until the stabilizer stops.
(h)
Set the STAB TRIM 3 switch on the control stand to CUTOUT.
(i)
Make sure the two stabilizer trim indicators show 0.00-0.50 units of trim.
(j)
Set the STAB TRIM 2 and 3 switches on the control stand to ON.
S 715-004
(5)
Do a test of the main electric limit switches on the right side with the landing gear retraction simulated:
(a)
Set the STAB TRIM 3 switch on the control stand to CUTOUT.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-41-08
ALL ú ú 01 Page 503 ú Feb 10/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
(b)
Use the STAB TRIM switches on the captain's control wheel to set the stabilizer at 7-8 units of trim.
(c)
Hold the STAB TRIM switches on the captain's control wheel to the NOSE UP until the stabilizer stops.
(d)
Set the STAB TRIM 2 switch on the control stand to CUTOUT.
(e)
Make sure the two stabilizer trim indicators show 11.35-11.85 units of trim.
(f)
Set the STAB TRIM 2 switch on the control stand to ON.
(g)
Hold the STAB TRIM switches on the captain's control wheel to NOSE DN until the stabilizer stops.
(h)
Set the STAB TRIM 2 switch on the control stand to CUTOUT.
(i)
Make sure the two stabilizer trim indicators show 1.55-2.05 units of trim.
S 715-007
(6)
Do a test of the alternate electric limit switches on the right side with the landing gear retraction simulated:
(a)
Set the STAB TRIM 2 switch on the control stand to ON.
(b)
Use the STAB TRIM switches on the captain's control wheel to set the stabilizer at 7-8 units of trim.
(c)
Hold the STAB TRIM ALTN switches on the control stand to the APL NOSE UP until the stabilizer stops.
(d)
Set the STAB TRIM 2 switch on the control stand to CUTOUT.
(e)
Make sure the two stabilizer trim indicators show 14.50-15.00 units of trim.
(f)
Set the STAB TRIM 2 switch on the control stand to ON.
(g)
Hold the STAB TRIM ALTN switch on the control stand to the APL NOSE DN until the stabilizer stops.
(h)
Set the STAB TRIM 2 switch on the control stand to CUTOUT.
(i)
Make sure the two stabilizer trim indicators show 0.00-0.50 units of trim.
(j)
Set the STAB TRIM 2 and 3 switches on the control stand to ON.
S 865-012
(7)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P7, Overhead Circuit Breaker Panel
1) 7F23, LANDING GEAR DSP & CONT ALTN
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú 中國航空網(wǎng) www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：747-400 AMM 飛機維護手冊 飛行操縱 FLIGHT CONTROLS 3(192)
