(1) Remove roll pins from knobs of SYSTEM
PARK and TRAILER AIR SUPPLY valves.
(2) Remove SYSTEM PARK and TRAILER AIR
SUPPLY valve knobs.
(3) Unscrew nuts at base of valve stem on each
valve.
(4) Remove six screws and dash plate from
personnel heater.
(5) Pull out TRAILER AIR SUPPLY valve from
personnel heater.
(6) Loosen air hose 102 at TRAILER AIR SUPPLY
valve delivery port.
(7) Start engine (TM 9-2320-365-10).
(8) Push in SYSTEM PARK control
(TM 9-2320-365-10).
(9) Push in TRAILER AIR SUPPLY valve stem.
(10) Check for presence of air at TRAILER AIR
SUPPLY valve delivery port.
(11) If air is not present, go to step 8 of this fault.
(12) If air is present, replace air hose 102
(para 11-19).
(13) Shut down engine (TM 9-2320-365-10).
(14) Tighten air hose 102 at TRAILER AIR SUPPLY
valve delivery port.
Change 1 2-1742.9
TM 9-2320-365-20-2
