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TB20 MAINTENANCE MANUAL 32 起落架 TB20飞机维护手册(38)

时间:2011-11-03 13:08来源:蓝天飞行翻译 作者:航空
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15) Remove the warning sign prohibiting main switch-breaker operation.
16) If connected, disconnect the ground power unit - refer to 24-40-00.
AAAA
Validity : S / N 1 - 9999 32-20-07 Page 203
(BA) JUN 02
 
Nose landing gear door - Removal / Installation
Figure 201
AAAA
 
Nose landing gear door - Adjustment / Test
Figure 202
 
PAGE INTENTIONALLY LEFT BLANK
WA
Validity : S / N 1 - 9999 32-20-07 Page 206
(BA) JUN 02
 
EXTENSION AND RETRACTION
DESCRIPTION AND OPERATION
1. GENERAL
The landing gear maneuver system includes the following elements :
- main landing gear actuating cylinder,
- nose landing gear actuating cylinder,
- main landing gear hinged strut,
- nose landing gear hinged strut,
- main landing gear compensating spring,
- nose landing gear compensating actuator,
- end of travel microswitch.
2. LOCATION
COMPONENT QTY AREA ACCESS DOOR REFERENCE
Main L / G actuating cylinder 2 730 - 740 / 32-30-01
Nose L / G actuating cylinder 1 100 131 32-30-02
Main L / G hinged strut 2 730 - 740 / 32-30-03
Nose L / G hinged strut 1 100 131 32-30-04
Main L / G compensating spring 2 730 - 740 / 32-30-00
Nose L / G compensating actuator 2 100 131 32-30-06
End of travel microswitch 8 100 - 730
- 740 131 32-30-07

3. DESCRIPTION (Figure 1)
A. Main and nose L / G actuating cylinders
Three double-acting actuators allow the landing gear retraction and extension thanks to the hydraulic pressure provided by an electrohydraulic generator. They are attached to the cell at body side, and to the hinged strut at slide rod.
Post-MOD. 141
In order to avoid the transient illumination / extinction of the green indicator lights, a flow regulator is installed on the "retracted" port of the nose landing gear actuating cylinder.
B. Main and nose L / G hinged struts
A hinged strut on which is attached actuating cylinder provides for each landing gear transmission of "up" and "down" maneuvers as well as "landing gear down" mechanical locking. Locking of landing gears in "up" position is ensured by hydraulic pressure which is maintained automatically by a valve on the electrohydraulic generator located under rear seat.
AAAA
Validity : Electrohydraulic generator
"PRESTOLITE" 32-30-00 (Am)Page 1
JUN 01
 
1 - Nose landing gear rubber stop
2 - Nose landing gear end of travel microswitch
3 - Main landing gear actuating cylinder
4 - Main landing gear rubber stop
5 - Main landing gear end of travel microswitch
 
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