75-31-00
ALL ú ú C01 Page 1 ú Nov 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
RIGHT VSV
ACTUATOR
SEE C
SEE A
LEFT VSV
ACTUATOR
SEE B CONTROL
MAIN ENGINE
VSV FEEDBACK CABLE
G-M56-MM-0140(1)-01-B
A
ADJUSTABLELINK STAGE 2
STAGE 1 ADJUSTABLEBELLCRANKBELLCRANK LINK
ROD END ADJUSTABLE
HEAD END
LINK STAGE 3
BELLCRANK
VSV DRAIN VSV
IGV ACTUATOR
BELLCRANK CLEVIS LINK
IGV
CLEVIS LINK BELLCRANK
VSV MASTER STAGE 3
ACTUATOR ROD BELLCRANK
HEAD END ADJUSTABLE
ADJUSTABLE LINK
LINK
ROD END STAGE 1
FEEDBACK CABLE STAGE 2 BELLCRANK
FWD VSV DRAIN BELLCRANK MASTER ADJUSTABLE FWD
ROD LINK
LEFT VSV ACTUATOR RIGHT VSV ACTUATOR
B C
Variable Stator Vane (VSV) Actuation System Component Location
Figure 1
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
75-31-00
ALL ú ú C01 Page 2 ú Oct 25/84
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
C. ON ENGINES WITH CFMI SB 75-023; a new VSV Actuator is introduced with a thinner piston rod diameter and a new end cap for the CFM56-3C-1 engine.
(1)
The introduction of the new VSV Actuator is completely
interchangeable with the old VSV Actuator.
(2)
The new VSV Actuators must be replaced on the engine in pairs to maintain the balanced forces in the VSV system.
(3)
Do not install an old VSV actuator with a new VSV actuator.
3. Variable Stator Vane Bellcrank Assembly (Fig. 1 and 3)_______________________________________
A. Each VSV bellcrank assembly consists of four bellcranks (IGV, stage 1, stage 2 and stage 3) which are mechanically driven by the VSV actuator through connections to the master rod. Adjustable links, consisting of a tie rod and bearing, connect each bellcrank to the actuation rings.
PISTON
LEFT VSV ACTUATOR) G-M56-MM-0056(1)-03-B
Variable Stator Vane (VSV) Actuator Cross Section Figure 2
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
75-31-00
ALL ú ú C01 Page 3 ú Nov 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址:737-300 400 500 AMM 飞机维护手册 空气 AIR(21)