Graco Therm-O-Flow 20 [46/108] Separate the air motor and pump

Graco Therm-O-Flow 20 [46/108] Separate the air motor and pump
Repair
Separate Separate
Separate
the the
the
Air Air
Air
Motor Motor
Motor
and and
and
Pump Pump
Pump
Thisproceduremustbedonewiththeunitstill
warm.Thematerialandequipmentwillbehot!
1.Ifthematerialdrumhasalreadybeenremoved
fromthesupplyunit,gotostep2.Ifyouneedto
removethematerialpail,performsteps1through
6ofChangePail,page35.Pumpmustbeinthe
fulldownposition(airmotorshaftfullyextended).
2.Makesuretheramplateisdownandtheram
directorvalve(CC)isintheneutralposition.
3.FollowPressureReliefProcedure,page33.
4.Bleedoffexcessmaterialandpressurein
thesystembyopeningthedispensegunand
catchingthematerialinawastecontainer.
5.OnADM,turnoffthesystemheat(D).
6.Turnthemainpowerswitchoff.
7.Disconnectallmaterialhoses.
8.Ifsystemincludespumpshield,removethe
pumpsheetmetalenclosure(A).SeeFig28.
a.Removethecoverscrews(B).
b.Removeheaterbands(HB)anddisconnect
thegroundwire(R).
9.Pumpmustbeinthefulldownposition(airmotor
shaftfullyextended).
10.Ifventhoodisinstalled,removeit.
11.Disconnectelectricalcablefromairmotor(X).
12.Removeairlinefromairmotorandairlinestothe
followerblow-offvalve.
13.Removenuts(F)frompump/airmotortierods
atthepumpend.
14.Removenutsandbolts(T)holdingcabletractto
airmotorsupportplate.Slideendofcabletrack
outboardofthemountingplate.
15.Removescrewsandwashersfrompumpinlet.
16.Fullyloosenpumprodcoupler(G)totheair
motorrod.
17.Slowlyraiseelevatortoachieveenough
separationofthepump(airmotor)tierodsto
removethepump.
18.Removethepump(P).
19.Reversethisproceduretoreinstallthenewor
rebuiltairmotor.
46334129D

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