CHAPTER 28
PAGE 16
PAGE DATE: 7. July 2010
MAINTENANCE MANUAL EXTRA 300LT
28-20-01 Fuel Selector Valve
N O T I C E Do not change fuel selector position while applying not
more than 15 PSI hydraulic or pneumatic pressure to
the fuel selector valve in case the valve shall be checked
when removed. This could damage the O-ring.
Integrity Test
1 Completely drain wing tanks.
2 Fuel selector position: WING TANKS
3 Completely fill center tank.
4 Leave aircraft stationary for a minimum of three hours.
5 If fuel is found in the wing tanks, the fuel selector valve
must be repaired or replaced.
Removal/Installation
(Refer to figure 8)
1 Drain the fuel system as per chapter 12-10-02.
2 Disconnect the fuel lines on the selector valve.
3 Remove the control rod attachment bolts (5).
4 Remove the attachment screw (4) if reasonable.
5 Remove the control bracket (3).
6 Remove the selector valve attachment bolts (2).
7 Remove the selector valve (1).
I M P O R T A N T Ensure LOCTITE 243 cannot get into the selector valve.
The selector valve could lock.
8 Install in reverse sequence of removal. Use LOCTITE 243
when installing the selector valve attachment bolts (2) and
the attachment screw (4).
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