JET FUEL THERMAL OXIDATION TESTER (J.F.T.O.T)

ASTM D3241

BYAAMIR SHAHZAD BUTT

JET FUEL THERMAL OXIDATION TESTER DIFFIRENT MODELS

J.F.T.O.T I J.F.T.O.T IIIJ.F.T.O.T IIJ.F.T.O.T IV

Jet Fuel Thermal Oxidation Tester (J.F.T.O.T) III

J.F.T.O.T III Standard Accessories and lines

CLEANING

J.F.T.O.T IIIPRE-FILTER COMPONENTS FLUSHING

FLUSH THE PRE-FILTER COMPONENTS WITH SOLVENT AS SHOWN IN FIGURE A,B &C AND THOROUGHLY BLOW DRY LINE USING A SQUEEZE BULB AS SHOWN IN FIGURE D.

FUEL-INLET LINE AND TEST SECTION OUTLET LINE FLUSHING

FLUSH THE FUEL SAMPLE INLET LINE WITH SOLVENT AS SHOWN IN FIGURE A&B AND THOROUGHLY BLOW DRY USING A SQUEEZE BULB.FLUSH THE SAMPLE-IN THERMOCOUPLE, SAMPLE-IN LINE AND THE AERATION LINE WITH SOLVENT.

FUEL-IN CONTAINER FLUSHING

FLUSH ALL INSIDE SURFACES OF THE FUEL SAMPLE-IN CONTAINER AND SAMPLE-OUT CONTAINER WITH SOLVENT AS SHOWN IN FIGURE

HEATER TEST SECTION FLUSHING

USING THE STIFF NYLON BRUSH (SUPPLIED) SATURATED WITH TRISOLVENT, BRUSH THE INSIDE SURFACES OF THE TEST SECTION WHILE FLUSHING WITH TRISOLVENT AS SHOWN IN FIGURE. THIS IS THE ONLY COMPONENT THAT REQUIRES CLEANING WITH TRISOLVENT.VISUALLY INSPECT THE INNER SURFACES OF THE TEST SECTION CLEANLINESS AND REPEAT CLEANING WITH TRISOLVENT AS REQUIRED TO REMOVE ALL DEPOSITS.

SQUEEZE-BULB USE FOR DRYINGEXAMPLE

FLUSH THE TEST SECTION AND ITS BYPASS LINE WITH SOLVENT AND BLOW DRY WITH A SQUEEZE BULB AS SHOWN IN FIGURE.FLUSH THE INSULATOR BUSHINGS AND TEST SECTION NUTS WITH SOLVENT.INSPECT ALL O-RINGS FOR CUTS, ABRASIONS, AND EXCESSIVE SWELLING AND REPLACE AS NECESSARY. INSPECT THE INSULATORS AND REPLACE IF THEY ARE CRACKED, CHIPPED, OR OTHERWISE DAMAGED. INSPECT ALL STAINLESS STEEL COMPONENTS FOR DAMAGE AND REPLACE AS NECESSARY.

CLEANED COMPONENTS

THE CLEANED PARTS ARE NOW READY FOR ASSEMBLY

J.F.T.OT III ASSEMBLY PREPATATION

PRE-FILTER ASSEMBLY

PRE-FILTER ELEMENT INSTALLATION

PRE-FILTER HOUSING ASSEMBLY

Pre-Filter HousingScrews (X3)

JFTOT HEATER TUBE

HEATER TUBE INSTALLATIONHeater Tube Serial Number

A B

Onto each end of the heater tube, sequentially install a tapered insulator (wide end out), high temperature O-ring, shoulder insulator (large end first), and hex nut as shown in Figures A and B. Lightly finger tighten nut with the heater tube approximately centered in the housing.

HEATER TUBE POSITION & DP-FILTER INSTALLATION

While observing the correct heater tube shoulder alignment in the discharge hole, tighten both hex nuts firmly with fingers only. DO NOT USE A WRENCH.

A B

Using clean tweezers, install the DP filter Figure A in the outlet chamber of the heater tube housing with the RED COLORED SIDE OUT. Place a new O-ring on top of the DP filter Figure B and press the O-ring in until it rests against the filter

TEST SECTION INSTALLATIONAfter the heater-tube test section assembly has been completed, it can be

installed into the bus bars in the JFTOT test area.If both screws are in the bus-bar caps, remove one screw and rotate the end caps to allow installation of the heater tube assembly.Install the new heater tube assembly into the top and bottom bus bars and then swing the caps into place over the tube and finger tighten the upper and lower bus-bar screws as shown in Figure A.

AEnsure the top of the heater tube is flush with the top of the upper bus bar Figure B and then use the Allen wrench provided to securely tighten the upper and lower bus-bar screws as shown in Figure C.

B C

OUTLET LINE AND BYPASS LINE INSTALLATION

FUEL INPUT TUBE INSTALLATION

Attach the test section bypass and outlet lines to the bulkhead fittings as shown in Figure. Make sure o-rings are on the ends of the both lines. Tighten fittings with fingers until snug.

Ensure an O-ring is in place at both fuel input line fittings and then connect thefuel input line to the pre-filter fitting and the other end to the fuel-in fitting onthe test section as shown in Figure. Tighten both fittings with fingers until snug.

THERMOCOUPLE INSTALLATION

Carefully, insert the thermocouple tip into the hole at the front of the upper end of the heater tube Figure A and lower until it stops.

Move the thermocouple retaining clip into place around the thermocouple as shown in Figure B.

TEST FUEL MEASUREMENT AND FILTER

JFTOT III COMPLETED INSTALLATION

SAMPLE-IN CONTAINER TUBES AND THERMOCOUPLE INSTALLATION

JFTOT III MARK 230MAIN SCREEN

CLICK RUNNING A DEFAULT TESTPress or click the RUN DEFAULT button on the main screen (right). The Test

Annotation screen (below left) appears.

Fill in the blanks and then click OK. An instruction box (below right) will appear prompting you to perform setup.After completing the setup steps, press or click the CONTINUE button.

CLICK RUNNING A DEFAULT TEST

The system will automatically begin the 6-minute preparation process and display the progress panel. The

progress panel requires no user input unless it is necessary to skip the preparation process or abort the test.

Standard Operating Conditions Fuel Quantity, 450-mL minimum for test + about 50 mL for system. Fuel Pre-Treatment—Filtration through a single layer of general

purpose, retentive, qualitative filter paper followed by a 6-min aeration at 1.5 L/min air flow rate for a maximum of 1000 mL sample using a coarse 12-mm borosilicate glass gas dispersion tube.

Fuel System Pressure, 3.45 MPa (500 psi) 610 % gauge. Thermocouple Position, at 39 mm. Fuel System Prefilter Element, filter paper of 0.45-μm pore size.

Fuel Flow Rate, 3.0 mL/min

Heater Tube Control Temperature, preset as specified in applicable specification.

Minimum Fuel Pumped During Test, 405 mLTest Duration, 150 min. Cooling Fluid Flow, approximately 39 L/h, or center of green range

on cooling fluid meter Power Setting, approximately 75 to 100 on non computer models;

internally set for computer models.

After the preparation process is complete, the test-in-progress screen appears and the green “Test Running”

indicator lamp is lit to confirm the test is running.

WHEN THE OPTION BOX (BELOW) APPEARS, PRESS OR CLICK YES TO SAVE THE FILE OR NO IF THE DATA IS TO

BE DELETED.

IF YES IS SELECTED, THE TRADITIONAL REPORT FORM WILL BE DISPLAYED.

FILL IN ANY MISSING INFORMATION ON THE TRADITIONAL FORM. TOUCH OR CLICK THE OK BUTTON FOR SAVE.