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DISASSEMBLY
AND REASSEMBLY
"ti4
Removing plungers
U)
Draw
out each plunger spring, and
rem ove.
lhe
con
trol
sleeve
an
d upper spring
seat.
Remo'l
ing p lunger
springs and
upper
'Seats
(k)
Rai,e
the pump
body
in
to
vertical
p()Sltion.
Unscrew and
remove the delivery valve
holders.
InsUill
the
extractor
an
d
draw
out
each
deUvery
v:llvr:,
as
shown
:
Rem
oving delivery
val't'e
&(CAUTIONj
When irIstalling the extractor. be careful not to
run
down
the
threaded portion of
the
extractor
too
filI
onto
the
delivery valve
in
pJace.
(I)
Take
out
the cylinder
(barrel) from
top 'ide by
pushing
on
its
bo
llorn.
Removing
cyl
inder
(m)
Remove the rack
guide
screw
>
and
draw out
th~
control
rack.
Rem
olJlng control
rack
(3)
Inspection
Layout the removed parts in
the
trays
,
segregating
lbern in
groups,
each
group
for
e3ch
pumping
elemen! and
~I.ted
parts
,
as
identified for
th.e
re.spective
reference
numbers
, No.1,
No.2. No.3
and
No
.
4
.
Do
not
disturb lbe
original sui
ts.
Wash each
part
clean,
and dry
iI
with
compresse
d
Ilir
,
makJ.ng
sure
that orifices
,
screw
threu.ds and
pocket'
al.
all
clean.
(a)
Pump
housing
In
spect
each
bore,
from
which the
cy~n
der
(barrel)
has been drnwn out
,
to
see
if there is
any
damage.
Check
to
be
sure that
the
counter-
bore
(int
o
which
lb.. shoulder of
the
cylinder
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