Fuel System - Thrush Aircraft S2RHG-T65 TURBO THRUSH Maintenance Manual

THRUSH AIRCRAFT, INC – MODEL S2RHG-T65 TURBO THRUSH
6. Start engine and run at idle speed for a minimum of two minutes.
7. Feather the propeller.
8. Shut down the engine.
9. Repeat Steps 1. through 3.
10. Remove the main oil filter. Clean or replace the filter and reinstall.
11. Remove the reduction gearbox oil strainer and clean. Reinstall the strainer.
12. Reinstall all engine drain plugs and the chip detector. Tighten, torque, and
lock wire.
13. Repeat Steps 5. through 8.
14. Check the oil levels and replenish, as necessary.
15. Install the filler cap and dipstick assembly in the filler tube. Ensure that the
cap is correctly installed and locked.
Different formulations of the various oil brands may have
varying detergent actions.
above may cause the release of carbon particles into the oil
system which would result in the clogging of the scavenge
screen. After a change of oil brand, the main oil filter should
be inspected for carbon particles at 10-hour intervals. There
should be 5 inspections for a total of 50 hours, and the filter
should be checked at the routine oil filter checks thereafter up
to 500 hours. If an excess of the amount of carbon is noted,
the following steps should be accomplished.
a. Remove the drain plug from the six o'clock position on the accessory
gearbox.
b. Using a mirror and light, inspect the scavenge screen through the
drain hole.
c. If there is evidence of carbon, try to dislodge it with a stiff paintbrush.
d. Flush out any removed carbon.
e. If the carbon cannot be removed by the above method, the
accessory gearbox should be removed and the screen cleaned.
Refer to the Accessory Gearbox Section in the Pratt and Whitney
Maintenance Manual for the removal procedure.
A. 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.
serviced after the last flight of the day to allow maximum time for the moisture to
reach the header tank. Service the aircraft with Jet A, Jet B, JP-4, or JP-5. If jet
fuel is not available, aviation gasoline MIL-G-5572 (all grades) may be used for a
Effective: 05/05/04
AIRCRAFT MAINTENANCE MANUAL
** CAUTION **
After an oil brand change, the

FUEL SYSTEM

The fuel tanks should be
2-11