THRUSH AIRCRAFT, INC – MODEL S2R-R1340
AIRCRAFT MAINTENANCE MANUAL
2-10
Effective 01/01/08
time for oil from the oil cooler to drain
also. Close drain valve.
* NOTE *
Drained oil should be
collected, strained and
examined for presence of
metal particles.
d. Remove, disassemble, inspect and
clean main pressure oil screen
assembly (see Section 4 for
disassembly and cleaning
procedures).
e. Remove and clean all sump drain
plugs and finger strainers.
f. After the lubricating oil system has
thoroughly drained, and all the filters
and screens have been cleaned and
reinstalled, verify that all points have
been safetied as required.
g. Service oil tank with approved type
and grade of engine oil.
h. Refer to Section 4 for appropriate pre-
oiling procedures.
i. After pre-oiling, start and run engine
until normal operating temperatures
are reached. During engine run-up
period, a careful check must be made
for any oil leaks.
ENGINE AIR INDUCTION AND
FILTER CLEANING
Normal filtered air is drawn from within the
engine compartment through a stacked
arrangement of paper air filters (see Figure
4-4). These filters prevent rapid wear of
engine mounting parts caused by entry of
fine grit and dust into the internal moving
parts of the engine. The filters are
chemically treated and should not be
cleaned with solvents or cleaned with
compressed air. The paper filters may be
cleaned by lightly tapping on a hard
surface. If this method does not remove
the excess dirt and dust, replace the filters
with new ones. The filters may be removed
as follows:
a. Remove access panel.
b. Loosen the top four tie rod nuts.
Remove one tie rod.
c. Remove the four paper filters.
d. Install new filters. Install the removed
tie rod and tighten nuts.
* NOTE *
Avoid over tightening of tie
rod nuts. Do not crush the
paper filters.
e. Install access panel.
FUEL SYSTEM
Reference Section 5
REFUELING:
(Ref. Fig. 2-2) Refuel the
aircraft with fueling facilities that contain
filters for removing the moisture content
from the fuel. If the fueling facilities with
filters are not available, filter the fuel
through a good grade of chamois. The
fuel tanks should be serviced after the last
flight of the day to allow maximum time for
the moisture to reach the sumps and
header tank. Service the aircraft with
80/87 octane or 100 octane low lead
aviation gasoline using the following
procedure.
Ground the aircraft to a proper
ground and the fuel servicing
equipment to the aircraft.
Smoking in or around the aircraft
during refueling operations is
prohibited. Fire protection
equipment must be immediately
available.
a. Turn all the switches off.
b. Remove the fuel filler cap. Fill the tank
until the fuel level rises to the filler
neck (or to desired quantity). Install
the fuel filler cap and service the
opposite fuel tank.
WARNING
