EOS SERVICE PROCEDURE 12-2810-R02 (10/3/10)
!"##$%&'(&$))*+%,,'((-..*/01*0/-0(2(+34 '((15.*167*1/./(2(,839)'((:;<=>?;@A?;BC>?D:BE?AF 13
7. Pressurize!the!re gula tor!again!and!listen!for!leaks!or!air!flo w;!n one! should!be!present.!If!a!leak!is !present,!rep eat!steps!
3!th rough!5. !
8. Hold!the!second!stage!with!the!+<ACR (HA= ;<(W_Y(facing!downwards;!gently!shake!up!and!down,!li stening!for!any!rattle!
sound!indicating!excessive!lever!slack.!If!a!rattle!sound!is!foun d,!readjust!the!$ <>S>?;(W_6Y(as!outlined!in!steps!4!a nd!5.!
9. 9CNBQBR>AC(,SSA<R(&;:R(V>RN(8BUC;N;Q>?(LBDU;(n(9#(LBDU;'(Attach!t he!correctly!adjusted !second!stage!to! a!
*Magne helic!Gauge!via!the!mouthpiece!adapter;!slowly!inhale !on!the!mouthpiece!while!wa tching!the!IP!Gauge.!The!
moment!the!needle!of!the!IP!Gauge!moves!left!from!140!p si!indicating!the!prec ise!mom ent!the!f irst!stage!has!
ope ned, !look!at!the!Magnehelic!Gaug e!and!record !the! Inhalation!Effort !in!Inche s!Water!Column!(IWC);!this!is!also!
refe rred!to!a s!Cracking!Ef fort. !Inhalation!Effort!is!not!to!exceed!5E_(9^H.!!
*(Magnehelic!is! a!registered!trademark!of !Dwyer!Instruments). !
!!!!!!! !!!!!!! !!! !!!!!!!!
! ! ! +>UE(/6( ( ( ( ((((((( (((
10. 9CNBQBR>AC(,SSA<R(&;:R(V>RN(+ QAVF;R;<'(A ttach!the!cor rectly!adjusted!second!stage!to!a!flow!meter!that!i s!connected!
to!a !Magnehelic!Gau ge!via!th e!mouth piece!adapter!W+>UE(/\Y.!Initiat e!air flow!through!the!flow!meter!with!the!needle!
valv e!while!watching!the!IP!Gauge.!The!moment!the!IP!Gauge!needle!moves!left!from!140!psi!indicating!the!precise!
moment!the!first!stage!has!opened,!look!at!the!Magnehelic!Gauge!and!record!t he!Inhalation!Eff ort!in!IWC.!Inhalation!
effort!is!not!to!e xcee d!5E_(9^ H.!!
G$&,'(9S(RN; (>CNBQBR>AC(;SSA<R (>:(U<;BR;<(A<(Q;::(RNBC(:T ;?>S> ?BR>ACf(<;S;< (RA(RN;(&<ADdQ;(:NAAR >CU(:;?R>AC(AC(TB U;(0(RA(
O;R;<F>C;(RN;(TA::>dQ;(?BD:;(BCO(<;:AQDR>ACE(
((((((( ((((((((((((((( ((((((((((((((( ((((((((((((((( ( (
( ( ( ( ( ( ( +>UE(/\(
11. Depres surize!and!remove!th e!second!stage!fr om!the!Magnehelic!Gaug e.!Attach!a!clean!8ADRNT>;?; (W-Y(to!the(
mouthp iece!tube(and!secure(with!a!& >;(^<BT! W\Y.!!
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