TM 1-1740-204-13&P
Section IV. Troubleshooting
SECTION CONTENTS
PARA
PAGE
GENERAL
3-10
3-4
TROUBLESHOOTING PROCEDURES:
3-11
3-4
NOT REQUIRING BOOSTER PUMP OPERATION
TROUBLESHOOTING PROCEDURE:
3-12
3-7
REQUIRING BOOSTER PUMP OPERATION
CART INSPECTION
3-13
3-8
ACCESSORY INSPECTION
3-14
3-9
3-10. GENERAL
WARNING
Remove or disconnect nitrogen tanks before maintenance. Never disconnect a pressurized line.
Possible failures of the High Pressure Nitrogen Servicing Cart as well as probable cause and corrective action are shown
in the following troubleshooting flow charts. Corrective actions, as shown in the following troubleshooting flow charts, are
described in the applicable removal/installation paragraphs in the text of this manual.
Troubleshooting flow charts are grouped into two categories. Paragraph 3-11 covers the case where booster pump
operation is not used and paragraph 3-12 covers troubleshooting for the case where the booster pump is required for
operation.
3-11. TROUBLESHOOTING PROCEDURES: NOT REQUIRING BOOSTER PUMP OPERATION
Paragraphs 3-11.1 "No Tire Inflation (Low) Pressures" and 3-11.2 "No Nitrogen Flow to High Pressure Output" show
troubleshooting flow charts for the cases where booster pump operation is not required.
Paragraph 3-11.1 is to be used for troubleshooting difficulties associated with low pressure operation such as tire
inflation. The nitrogen supply pressure is obtained from the Cart's C4 connector in this case.
Paragraph 3-11.2 is to be used for troubleshooting difficulties associated with no high pressure output appearing at the
High Pressure Output connector, C5, or at the high pressure fitting end of the high pressure charging hose.
See Figures 1-3 and 1-4 for the function and location of the designated components.
3-4
