North Wing S-LSA Maintenance Manual
Model: Scout 912
Version 3.2
Release date 04-16-2014
Page 58
Task Description:
Since the fuel filter should be replaced every 100 hours, this is a good time to check the fuel
lines also.
1.
Have a small container available to catch any fuel that may be in the lines both
upstream and downstream of the filter. Discard any fuel drained. Do not put back in
fuel tank.
2.
Remove the clamp or safety wire from both ends of the filter.
3.
Work the fuel line off one end of the filter in a twisting and pulling motion, and catch
any fuel that may drain from the line or the filter itself. If the lines are not easily
removed, they are probably hardened and need to be replaced. Cut them off with wire
dikes and a knife and replace them with new fuel line per Section 4.4.1 above.
4.
When installing the new filter, be sure the fuel flow will be in the correct direction as
indicated on the filter body.
5.
Use new clamps or safety wire on both ends of the filter. Do not tighten safety wire
excessively as it can cut through the fuel line.
4.4.3 Replace Fuel Tank
Skill Level:
LSR-M, A&P
Tools:
US sockets set, box wrenches, Philips screw driver
Material:
Replacement tank
Task Description:
The fuel tank is very durable and it would be rare that it needed to be replaced. If damaged
sufficiently to need replacement, the steps given below are necessary. In some cases the tank
might be repairable by a professional welder experienced with Plastic Welding. Of course the
tank would need to be flushed thoroughly to eliminate any possibility of explosion from the
fuel vapors, and it may still need to be removed. If so, it is recommended that the tank be
replaced rather than welded.
1.
Drain all fuel from the tank through the drain valve at the bottom of the tank.
2.
Remove the seats and backrest
3.
Remove the backrest mounting tube
4.
For the Apache model with fairing, remove the four screws on the aft panels so that the
top of the panels can be pulled apart a few inches to allow removal of the tank.
5.
Disconnect the wing spring assist list from the seat rail
6.
Remove the four (4)
¼
” bolts securing the seat rail. Two bolts attach to the backframe
and the other two attach to the root tube. Lift seat rail from the trike.
7.
Remove the one
¼
” bolt holding the angle plate to the root tube in front of the tank and
remove the plates.
8.
Remove the nylon webbing securing the tank.