THRUSH AIRCRAFT INC – MODEL S2R R1340
AIRCRAFT MAINTENANCE MANUAL
5-16
Effective: 01/01/08
*NOTE*
Any time you have to replace
either the fuel flow indicator or
the transducer, you must be
sure to have the unit calibrated
to same K factor as set by the
manufacturer. It will cause bad
indications if mismatched K
factors are installed together.
ACTIVATING HOPPER (FERRY)
FUEL SYSTEM
(Ref. Fig. 5-6)
A. Remove spray pump and spray pump
discharge line to spray valve. Tie-rap
any wires or cables to upper portion
of pump mount.
B. Open hopper gate box dump gate.
C. Assure hopper has been cleaned
thoroughly and there is no presence
of water or chemicals. Assure side
loading plumbing has been cleaned
and there is no presence of water or
chemicals.
D. Install the 2" camloc female cap on
the spray valve return inlet fitting
located inside the hopper gate box
left hand side and lock wire.
E. Install cap on hopper outlet fitting and
lockwire.
F. Hook up fuel line from cap to fuel
selector valve. Make sure that the
fuel line is secured to aircraft
structure and will not foul any
movable controls.
G. Service hopper with approved fuel.
With the ferry fuel selector in hopper
position, drain all trapped air from
the hopper fuel line by operating the
fuel strainer drain (see Figure 5-1).
Unless this procedure is followed
after each refueling, the engine may
quit when hopper fuel is selected in
flight.
OPERATING INSTRUCTIONS FOR
THE P/N 60167 FERRY FUEL SYSTEM
Operation instructions must
be strictly followed to
operate aircraft using ferry
fuel system.
A. Securely attach these instructions in
the cockpit on the hopper, directly in
front of the pilot's face at the time of
installation of the ferry fuel system.
B. In the United States, an aircraft with
this ferry fuel system installed and
connected to the normal fuel system
must be operated on a special flight
authorization (ferry permit) regardless
of whether the ferry fuel system is
actually used on any particular flight.
C. Due to vapor lock considerations, use
of automotive gasoline as an
alternate fuel is prohibited in either
the wing tanks or the hopper.
D. Do not use hopper fuel for takeoff,
landing, or flight at low altitude.
E. Use hopper fuel only for level cruising
flight above 3000 feet above ground
level. Always operate the electric fuel
pump and the ignition switch while
changing the fuel selector in flight.
Always switch fuel at or below cruise
power settings.
F. Except in emergency, do not dump
hopper fuel in flight or on the ground
with the engine running.
G. Drain the hopper sump and all other
normal fuel system sumps prior to
flight.
H. Never use the hopper as a fuel tank
unless it is completely clean and dry.
I. Remove these instructions from the
cockpit only after removal of the ferry
fuel system from the aircraft
CAUTION
CAUTION
