Valmet 309 - D. DISMOUNTING THE FEED PUMP AND CHECKING THE VALVES

t.
DI9rcUXTI]{G
TIIE
FEED PTIP
AID C}CCK It{G
IlE
v
LtEs
cleän fho lnJecilon
pu[p
and
lts surroundlngs
car€fu
|
|
Y.
2. D
lscoon€cf
the
fusl
plpos
leadlng
to the feed
puop.
Op€n ttre
te€d
puip
retalnlng nu+s and dlsnpunt
the f€d
purnp.
Flx the te€d
punp
flonge to
a
screr
clalp
equlpped
rlih
protecflng
Jars.
Rg|tpve
l'he
hcnd
purp
frdr
tho
lnJoctlon
puip
as xell as the
plug
or conneqtor noar lt
(509,
lll).
6.
Rd|pvg
the vclvg
sprlngs and valves frqn
th€
f6€d
pump
body.
Check the
condlilon of ihe
valve
gasket
surfoce cnd replace rorn
parts.
Place
the
yålves
cnd
sprlngs ln +helr
poslilons.
The Inlet and exhaust-valves
are ot
lhe
sor|9 lype.
Flx
+he
hond
punp
and
ihe
p
lug./conn€ctor
by
uslng
n€s
seollng ilngs.
Clean ihe
gcskei
surleces betreen fhg
leed
pump
and
the lnJectlon
pump.
Remount lhe teed
punp
by
uslng a n€r gosket.
9-12