TM 9-4120-405-13&P
CHAPTER 3
OPERATOR MAINTENANCE
Section I. OPERATOR LUBRICATION INSTRUCTIONS
3-1. GENERAL. Refer to technical manuals TM 5-4120-384-14 (air conditioner) and TM 9-2330-202-14&P (trailer) for
individual requirements. Refer to figure 3-1 for a reproduction of the Lubrication Order for the generator-set.
NOTE
Drain valve should be in off position.
a. Remove drain hose extension (item 10, appendix D) (1) from storage box.
b. Detach drain hose (2) from drain hose plug (3) on generator-set.
c. Install drain hose extension (1) to drain hose (2).
d. Position drain hose extension to allow oil to drain into a suitable container.
Section II. OPERATOR TROUBLESHOOTING PROCEDURES
3-3. USE OF TABLE. Table 3-1 contains troubleshooting instructions designed to be useful in diagnosing and correcting
unsatisfactory operation or failure of the trailer-mounted air conditioner with power.
a. The table lists the common malfunctions which you may find during the operation or maintenance of the trailer-
mounted air conditioner with power or its components. You should perform the tests/inspections and corrective actions in
the order listed.
b. This manual cannot list all malfunctions that may occur, nor all test or inspections and corrective actions. If a
malfunction is not listed or is not corrected by listed corrective actions, notify your supervisor.
c. Any trouble or corrective action beyond the scope of operator maintenance shall be reported to unit maintenance.
3-1
