TM 9-2320-366-10-1
(27) Push in TRAILER AIR SUPPLY control (34).
(28) Press R (Reverse) button (11) on WTEC II TEPSS (12) or WTEC III TPSS (12).
(29) Push in SYSTEM PARK control (15).
(30) Back M1088 Tractor slowly until jaws (35) of fifth wheel (3) lock around trailer kingpin
(13).
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