Appendix
All
S
P Rock Valve Model
s
Startup 250:Users:Danny:Desktop:Operation manuals:line
pumps:All SP Rock Valve models:Frame files:Appendix.fm
Operation Manual -
151
d
u
tie
s
,
as
ass
igned, in
a
reli
a
ble
m
a
nner.
Rock Jam
A
s
pecific type of block
a
ge c
aus
ed
when the cement
a
nd fine
s
of the con-
crete
a
re not pre
s
ent in
su
fficient
qua
ntity to f
u
lly co
a
t the l
a
rger
a
ggre-
g
a
te
s
a
nd the w
a
ll
s
of the delivery
s
y
s
-
tem. In the
s
e c
as
e
s
, the rock (l
a
rger
a
ggreg
a
te
s
of the mix) will form
a
wedge in
s
ide of the pipe. Re
s
i
s
t
a
nce
to movement then become
s
overpow-
ering
a
nd the concrete
s
top
s
. Incre
as
-
ing pre
ssu
re to try to remove the
wedge only re
su
lt
s
in forcing more of
the fine
s
t p
a
rticle
s
p
as
t the rock
s
,
compo
u
nding the problem. In
s
ome
c
as
e
s
the wedge c
a
n be broken
u
p by
a
ltern
a
tely p
u
mping in forw
a
rd
a
nd
then rever
s
e.
See also:
Block
a
ge
S
eparate Pipeline
A pipeline th
a
t i
s
l
a
id between the con-
crete p
u
mp
a
nd the point of di
s
ch
a
rge,
other th
a
n the pl
a
cing boom pipeline.
S
hut-Off Valve
In hydr
au
lic
s
:
a
v
a
lve with the
a
bility to
s
top the flow or pre
ssu
re of hydr
au
lic
oil. M
us
t be
a
ble to with
s
t
a
nd the m
a
x-
im
u
m pre
ssu
re of the hydr
au
lic circ
u
it
th
a
t it control
s
. In concrete: A m
a
n
ua
lly
or hydr
au
lic
a
lly oper
a
ted v
a
lve th
a
t will
prevent the flow of concrete in either
direction.
S
ome concrete
s
h
u
t-off
v
a
lve
s
a
l
s
o h
a
ve the
a
bility to divert
the flow of concrete to
a
different pipe-
line, for ex
a
mple, to
a
di
s
ch
a
rge point
for cle
a
n-o
u
t. The
s
h
u
t-off v
a
lve m
us
t
be
a
ble to with
s
t
a
nd the m
a
xim
u
m
pre
ssu
re on the concrete of which the
p
u
mp i
s
c
a
p
a
ble.
S
oil Pre
ss
ure
The force per
squa
re
a
re
a
th
a
t i
s
exerted on the gro
u
nd by the o
u
trigger
leg
s
. The
a
mo
u
nt of pre
ssu
re th
a
t the
s
oil will
su
pport v
a
rie
s
with the compo-
s
ition
a
nd comp
a
ction of the
s
oil. To
m
a
ke
a
determin
a
tion on the
s
t
a
bility
of the
s
oil,
s
ee the ch
a
rt in
S
ection 5 of
thi
s
m
a
n
ua
l.
S
ponge Ball
A medi
u
m to h
a
rd
s
ponge formed into
a
s
phere
a
nd
us
ed to cle
a
n the in
s
ide
of delivery pipeline
s
.
See Also:
Go Devil
S
potter
A
s
potter i
s
a
per
s
on th
a
t
s
t
a
nd
s
a
t
a
v
a
nt
a
ge point where he (
s
he) c
a
n
s
ee
both the point of di
s
ch
a
rge
a
nd the
oper
a
tor of the p
u
mp. The
s
potter
wo
u
ld then direct the oper
a
tor to oper-
a
te the
u
nit
as
re
qu
ired by the job cir-
c
u
m
s
t
a
nce
s
with 2 w
a
y r
a
dio
s
or h
a
nd
s
ign
a
l
s
. A
s
potter c
a
n be
a
nyone th
a
t
i
s
f
a
mili
a
r with the
sa
fety r
u
le
s
for the
p
u
mp
a
nd worker
s
,
a
nd i
s
e
qu
ipped
with
a
r
a
dio or know
s
the
a
ppropri
a
te
h
a
nd
s
ign
a
l
s
. A
s
potter i
s
needed
whenever the oper
a
tor c
a
nnot
sa
fely
s
ee the point of pl
a
cement or the di
s
-
t
a
nce between the
u
nit
a
nd
a
n
u
n
sa
fe
a
re
a
.
See Also:
G
u
ide
S
ucking Back
The
a
ct of p
u
tting the concrete p
u
mp
into the rever
s
e mode for
a
ny of
s
ev-
er
a
l re
as
on
s
.
S
ome ex
a
mple
s
of re
a
-
s
on
s
to
su
ck b
a
ck:
• To relieve pre
ssu
re in the delivery
s
y
s
tem before opening when
a
block
a
ge h
as
occ
u
rred.
• To cle
a
n the boom with
a
s
ponge
b
a
ll
u
pon completion of the po
u
r.
• To remove concrete from the
boom for the p
u
rpo
s
e of folding
the boom for moving.
Thru
s
t Block
Al
s
o known
as
a
“de
a
d m
a
n
”
. Thi
s
i
s
a
l
a
rge block of po
u
red concrete,
usua
lly
with one or more
s
weep elbow
s
c
as
t
in
s
ide, pl
a
ced
a
t the bottom of
a
verti-
c
a
l r
u
n for the p
u
rpo
s
e of
su
pporting
the weight of the vertic
a
l r
u
n,
a
nd l
a
t-
er
a
l
s
t
a
biliz
a
tion of the pipeline. It
s
t
a
-
bilize
s
a
nd
su
pport
s
the vertic
a
l r
u
n by
virt
u
e of it
s
enormo
us
m
ass
(norm
a
lly
one c
u
bic y
a
rd or l
a
rger).
Towing Vehicle
In thi
s
m
a
n
ua
l, “Towing Vehicle
”
a
pplie
s
only to tr
a
iler mo
u
nted con-
crete p
u
mp
s
. It i
s
the vehicle th
a
t yo
u
will
us
e to tow the tr
a
iler on the ro
a
d,
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Содержание 30100750
Страница 8: ...Table of Contents Operation Manual All SP Rock Valve models viii revDate Home TOC TOC Print Print ...
Страница 14: ...Introduction Operation Manual All SP Rock Valve Models 12 revDate NOTES Home TOC TOC Print Print ...
Страница 70: ...Overview Operation Manual All SP Rock Valve Models 68 revDate NOTES Home TOC TOC Print Print ...
Страница 100: ...Operation Operation Manual All SP Rock Valve Models 98 revDate NOTES Home TOC TOC Print Print ...
Страница 126: ...Maintenance Operation Manual All SP Rock Valve Models 124 revDate NOTES Home TOC TOC Print Print ...
Страница 159: ...Alphabetical Index Operation Manual Line pumps ALPHABETICAL INDEX swg99a001 eps Home TOC TOC Print Print ...
Страница 164: ...Alphabetical Index Operation Manual All SP Rock Valve Models 162 revDate Home TOC TOC Print Print ...
