Graco EcoQuip - Pressure Relief Procedure and Grounding; Pressure Relief Procedure; Grounding (ATEX Systems only)

PressureReliefProcedure
Pressure Pressure
Pressure
Relief Relief
Relief
Procedure Procedure
Procedure
FollowthePressureReliefProcedure
wheneveryouseethissymbol.
Thisequipmentstayspressurizeduntilpressure
ismanuallyrelieved.Tohelppreventserious
injuryfrompressurized󰘱uid,suchassplashing
󰘱uid,followthePressureReliefProcedurewhen
instructed.
1.Turnthepotpressureregulator(PR)off.
2.Closetheabrasiveballvalve.
3.Turnthecompressoroff.Closethecompressor
supplyairvalve.
4.Engagetheblastcontrolswitchtorelieve
pressureinthesystem.
5.Verifythatthesupplyairpressuregaugereads
0psi,thendisconnecttheairinlethosefromthe
system.
6.Turntheselectorvalve(SL)toFILL.
7.Openthedumpvalve.
8.Verifythatthepotpressuregauge(PG)displays
zeropressure.
Grounding Grounding
Grounding
(ATEX (ATEX
(ATEX
Systems Systems
Systems
only) only)
only)
Theequipmentmustbegroundedtoreducethe
riskofstaticsparking.Staticsparkingcancause
fumestoigniteorexplode.Groundingprovidesan
escapewirefortheelectriccurrent.
Systems: Systems:
Systems:
Usesuppliedgroundwireandclamp
(237686).
Air Air
Air
and and
and
󰘱uid 󰘱uid
󰘱uid
hoses: hoses:
hoses:
UseonlygenuineGracoATEX
rated,conductivehoseswithamaximumof150ft
(45m)combinedhoselengthtoensuregrounding
continuity.Checktheelectricalresistanceofthe
hoses.Ifthetotalresistancetogroundexceeds29
megaohms,replacethehoseimmediately.
Air Air
Air
compressor: compressor:
compressor:
followmanufacturer’s
recommendations.
10334142F