通航信息_通航_通用航空_General Aviation

 
Tank filter - Removal / Installation
Figure 401A - S / N 1038 - 9999
 
FUEL SELECTOR CONTROL
REMOVAL / INSTALLATION
WARNING : OBEY THE SAFETY PRECAUTIONS DESCRIBED IN 28-00-00.
1. REMOVAL OF THE FUEL SELECTOR CONTROL (Figure 401)
A. Tools and consumable materials
- Blanking caps
B. Procedure
WARNING : APPLY THE MAINTENANCE PROCEDURE OF THE FUEL SYSTEM — REFER TO 28-00-00.
1) Drain the fuel tanks and system in the fuselage - refer to 12-11-02.
2) Remove engine cowling 121 - refer to 71-10-01.
3) Remove the inspection door 212L - refer to 06-30-00.
4) Disconnect fuel tube (5) from electric pump. Blank off.
5) Unlock instrument panel and tilt it backward - refer to 31-10-01.
6) Remove and discard nut (11), remove washer (10) and bolt (7) and disconnect control tube (8).
7) Disconnect tubes (1) and (6). Blank off.
8) Remove nut (4) and washer (3) attaching three-way cock (2) to firewall.
9) Disengage three-way cock (2).
2. INSTALLATION OF THE FUEL SELECTOR CONTROL (Figure 401)
A. Tools and consumable materials
- Red paint
- Grease (TB 04-004A)
B. Procedure
WARNING : APPLY THE MAINTENANCE PROCEDURE OF THE FUEL SYSTEM — REFER TO 28-00-00.
1) Lubricate control shaft (12) of three-way cock (2) with grease (TB 04-004A).
2) Install three-way cock (2) on the firewall and secure it with nut (4) and washer (3). Do not tighten.
3) Remove the blanking caps and connect tubes (1) and (6) - refer to 20-00-02. Do not tighten.
4) Tighten three-way cock (2) on the firewall.
5) Tighten tubes (1) and (6) - refer to 20-00-02.
6) Remove the blanking caps and connect fuel tube (5) of electric pump.
7) Install control tube (8), set control knob (9) to "RIGHT" position, engage bolt (7) moving it from left to right and install washer (3) and a new nut (11).
WA
Validity : S / N 1 - 730 28-20 Page 401
04 (BA) SEP 02
 
8) Set the fuel selector to "CLOSED" position.
9) Fill up the tanks - refer to 12-11-01.
10) Set the fuel selector to "LEFT" or "RIGHT" position.
11) Bleed the fuel system - refer to 12-11-02.
12) Close main switch-breaker.
13) Check the fuel selector indicator light on the advisory panel for operation :
- when the fuel selector is set to "OFF", the indicator light must be ON.
- when the fuel selector is set to "LEFT" or "RIGHT", the indicator light must be OFF. CAUTION : MAKE SURE THAT THE SELECTED TANK CONTAINS FUEL BEFORE ACTUATING
THE ELECTRIC PUMP.
　
中国通航网 www.ga.cn
通航翻译 www.aviation.cn
本文链接地址：TB20 MAINTENANCE MANUAL 28 FUEL TB20飞机维护手册 燃油(31)