Hydraulic valve block functions, Hydraulic valve block functions -57 – Kinze 3700 Front Folding Planter Rev. 7/14 User Manual
Page 153
TM
Model 3700
M0233-01
Rev. 10/11
5-57
Lubrication and Maintenance
h
ydra
UL
iC
v
a
Lve
bLOCK
fU
n
CT
iO
n
S
v
alve
a
ssemb
ly
n
ame
f
unction
A6710
V
alv
e b
loc
k on L.H.
wing
1500 psi relief v
alv
e.
Allo
ws lo
w
er from tr
anspor
t.
A6711
V
alv
e b
loc
k on to
w
er
Oil enters D3 and flo
ws past
V14 to rod end of sla
ve cylinders
when lo
w
er
ing planter
. Oil from rod side of sla
ve cylinders goes in
D6 and D7 when r
aising planter
. V14 is closed so oil goes out D5
to height stop plunger and comes bac
k in on D4 to tr
actor
.
Oil flo
ws directly to tr
actor when
V14 is energiz
ed and allo
ws
planter to r
aise to tr
anspor
t height.
A6712
V
alv
e b
loc
k on front hitch
Controls tongue lift cylinder and routes h
ydr
aulic hoses to left and
right side dr
ag links
.
A6713
Junction b
loc
k on hose tak
e-up
Planter lift circuit juction b
loc
k.
Routes h
ydr
aulic flo
w to all planter
lift related v
alv
es
.
A6782
Detent
Le
ver V
alv
e
Bloc
ks oil from e
xiting wing cylinders when lo
w
er
ing until center
of planter reaches a predeter
mined height (le
vel toolbars) and
then is mechanically opened.
A6842
V
alv
e b
loc
k on R.H.
wing
Controls mar
kers and mar
ker speed.
Routes h
ydr
aulic flo
w to
tongue and f
old cylinders
.
A8420
Pilot Oper
ated Chec
k
V
alv
e
Tr
aps oil in b
utt ends of wing cylinders until pilot pressure from
A8421 opens chec
k v
alv
es and allo
ws cylinders to retr
act.
A8421
V
alv
e b
loc
k on L.H.
wing
Opens pilot oper
ated chec
k v
alv
es in A8420 when lo
w
er
ing.
A12105
Strok
e
Limiter V
alv
e
Shuts off h
ydr
aulic flo
w to set field tur
n height.
A12113
V
alv
e b
loc
k on L.H.
and R.H.
wheel module
(36 ro
w 20 only)
Bloc
ks flo
w from por
t 2 to 1 until pressure e
xceeds v
alv
e set
pressure (1000 psi).
Allo
ws free re
verse flo
w from 1 to 2 if
pressure at 1 is at least 10 psi g
reater than pressure at 2.
A14036
Pilot Pressure Booster
V
alv
e Bloc
k
Located on inboard side of A8421 to create 1000 psi pressure on
pilot lines to ensure wing wheels lo
w
er together
.