MAHLE RTI NTF-515 (Rev A) - Manual (Page 8)

AUTOMATIC TIRE FILLING
PURGE/FILL AND TOP OFF CYCLES
1. Attach air supply (150 PSI max) to the unit. Verify pressure indicated on panel mounted Air
Pressure gauge is between 120 - 150 PSI.
2. Turn both valve knobs to FILL TIRE.
3. Allow unit to build pressure in Nitrogen storage tank as shown on N
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pressure gauge (120 PSI).
4. Turn on POWER switch on the top of control panel. PCB will display battery charge status (HI
or LO). Ensure that 12VDC battery is charged. See section on Battery charging for more
information.
5. Connect hoses to tires. NTF-515 unit is equipped with four service hoses, coiled on both sides.
12 FT long hoses should be connected to tires, nearest to the operator. 24 FT long hoses
should be connected to farthest tires on the vehicle. Ensure that air chucks are fully engaged
with valve stems for proper service.
6. Set the final target pressure by pressing + or – buttons.
7. To change Over Pressure and Nitrogen Purge Cycles settings see following sections.
8. Press and hold START button for two seconds (until long beep). This will start Purge/Fill cycle.
For Top Off cycle press START button momentarily and release it. Top Off cycle will start
immediately.
One complete Purge/Fill cycle will deflate all tires to 10% of target pressure
(approximately 3 PSI for 30 PSI target), inflate to target pressure, deflate to 50% of target
pressure then inflate to final target pressure. (If two or more Purge Cycles are programmed the
above process will be repeated).
9. Unit will beep at the end of service and word END will appear on LCD.
10. It’s recommended to wait 10-15 seconds after the end of service before disconnecting hoses.
11. Press any key to stop process.
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