TM9-2815-202-34 8-18.   AIR   BOX   PRESSUIRE   TEST This task  Covers:  Testing lNITIAL   SETUP MODELS EXPENDABLE/DURABLE  SUPPLIES AM Mercury  (App c, Item 28) TOOLS AND SPECIAL TOOL Manometer (App B, Item 64) Nonmetallic tubing (App B, Item 98) Turbocharger Inlet Shield (App B, Item 81) Testing WARNING a. b. c. d. e. f. Mercury  is  a  toxic  material.  Avoid  contact  with  skin.  Clean  up  any  spilled mercury. Small amounts of mercury may be disposed of by wiping with aluminum  foil. Remove  one  tube  connector  (1)  from  manometer  (2)  by  rotating  connector  in  a  counterclockwise direction. Turn  remaining  tube  connector  (3)  until  fully  engaged  and  then  back  out  one  full  turn. Add mercury (4) to manometer (2) until mercury level is opposite zero mark on manometer scale with  manometer  in  a  vertical  position. Install tube cnnector (1) until fully engaged and then back out one full turn. Connect  hose  (5)  to  air  box  drain  tube  (6) and connect opposite end of hose to manometer  tube  connector  (1).  Close manometer  tube  connector  (1)  attached  to hose. Mount  manometer  (2)  in  a  vertical  position and  adjust  scale  until  zero  mark  is  opposite of mercury level. 8-44 Change  1