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8/12/2019 323D Excavadora Cat
1/15
1
EF
TRAVELMOTOR(RIGHT)
T
Pp3
Pp3
A
B
(32)MOTORGP
TRAVELRIGHT
(53)VALVE
GP
TRAVELRT
COUNTER
BALANCE
39SWIVELGP
BR1
AR1
8/12/2019 323D Excavadora Cat
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CD
(39)SWIVELGP
BR1
AR1
(11)VALVEGP
LOADCONTROL
VABCYLINDER
225-4843
VABCYLIN
DER
T
CV
Pi
CYL
DR
FB2
8/12/2019 323D Excavadora Cat
3/15
HYDRAUL
IC
CIRCUITCOLOR
DE
SCRIPTIONS
PILOTPUMPOUTPUT
RIGHTMAINPUMPOUTPUT
HEAVYLIFTCONTROLCIRCU
IT
VABCYLINDERCONTROLCIR
CUIT
LEFTANDRIGHTMAINPUMP
POWERSHIFTCIRCUIT
SUPPLYLINE
STICKCYLINDERCONTROLC
IRCUIT
LEFTTRAVELMOTORCONTR
OLCIRCUIT
ATTACHMENTCONTROLCIRC
UIT
SWINGMOTORCONTROLCIR
CUIT
DRAIN/RETURNLINE
SWINGBRAKECONTROLCIRCUIT
LEFTMAINPUMPOUTPUT
TRAVELSPEEDCONTROLCIR
CUIT
BUCKETCYLINDERCONTROL
CIRCUIT
RIGHTTRAVELMOTORCONT
ROLCIRCUIT
BOOMCYLINDERCONTROLC
IRCUIT
LINEPATTERNS
Drain/Retu
rnLines
Component
Group
Pilot/Load
SensingPressure
PressureLine
CALLOUTS
Taps(Pressure,
Sampling,Sensor-byletter)
YY
(52)VALVEGP-CO
NTROL
138-1234
CalloutNum
ber
(MachineLocationfrom
ComponentLocationsT
able)
Component
Name
PartNumber
Attachment
Group
onentsareshownins
talledonafullyoperablemach
inewiththekeyandengineoff,transmissionshifter
tralandwithparkingbrakeset.
totheappropriateSe
rviceManualforTroubleshooting,SpecificationsandSystemsOperations.
SCHEMATIC
ISFOR
THE323D
EX
CAVATOR
HYDRAUL
IC
SYSTEM
ACHMENT:VARIABLEANGLEBOO
M
TNUMBER:342-1966,CHANGE:00,VERSION:HE
IANUMBER:K
ENR5529
1
AB
R.C.V.:
RETURNCHECKVALVE
8/12/2019 323D Excavadora Cat
4/15
2
3
17)VALVEGP
OLENOID
NEGFLOWC
ONT,
ROPNREDVALVE)
71-0188
EGP
IDOOL,4-FUNCTION)
A1
A2
B1
B2
H
R
HL
STICKCYLINDER
BUCKETCYLINDER
TRAVELMOTO
R(LEFT)
Pp3
T
A
B
(31
)MOTORGP
T
RAVELLEFT
(52)VALVEGP
TRAVELLT
COUN
TERBALANCE
BR3
AR3
BL3
AL3
BL1
AL1
8/12/2019 323D Excavadora Cat
5/15
STICK(2)
P2
R3
aR5
AR5
BR5
(OUT)
(46)VALVEG
P
MAINCONTROL
bR5
R.C.V-B
HR
(22)BLO
CK
185-0488
BL1
AL1
DR
FB2
ar pH M MU
8/12/2019 323D Excavadora Cat
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Componentsar
inneutraland
Refertotheap
THISSCH
ATTACHM
PARTNUM
MEDIANU
2
3
GPRAULIC
HJ
JK
K
L O L N 884- H
8/12/2019 323D Excavadora Cat
7/15
4
5
(17)VAL
SOLENO
(NEGFL
PROPN
171-0188
(18)VALVEGP
SOLENOID
(WORKTOOL,4-
259-7429
P T
A1
P
A1
A2
A3
A4
B4
B3
B2
B1
T
Pb1
Pa1
bR2
aR2
H
A
P
T
A B
LVEGP
OID
FLOAT,
OIL)2
(8)VALVEGP
FLOWC
ONTROL
(BOOMFLOAT,
PILOTOIL)
201-9236
A
B
Dr
Pi
T
X
(5)VALVE
GP
CHECK
(1-WAY/2-WAY,CHECK)
297-0370
(1
0)VALVEGP
LOADCONTROL
B
OOMCYLINDER
225-4785
TCHAS
URE
FLOAT)
69
AA
BB
CC
DD
8/12/2019 323D Excavadora Cat
8/15
BO
OM(1)
ATCH
BUCKET
TRAVEL(R)
TRAVEL(L)
SWING
DST
P
L
PR
Di1
Di4
Pi4
BP3
BP2
AR2
BR2
(R)
(L)
(FWD)
(REV)
(FWD)
(REV)
(OPEN)
(CLOSE)
(UP)
(DOWN)
A1
A2
B1
B
2
(4
2)VALVEGP
HEAVYLIFT
A
T
P
Pi5
bL2
bL1
bR1
bR3
bR4
aL2
aR1
AR4
aL1
aR3
a
R4
Pi1
aR
2 bR2
P
T
,
OIL)2
AR3
BR3
AR1
BR1
AL1
BL1
(13)VALVE
GP
SHUTTLE
164-6980
(34)SENSOR
AS
PRESSURE
LEFTPUMP
LIC
8/12/2019 323D Excavadora Cat
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4
5
M2
G2
G1
M1
A3
A
1
S1
S
3
A
2
Pm
Pi
Pn1
Pn2
Ps2
Ps1
PsM1
G3
Dr1
Dr2G
2
PsM2
P1
P2
T
(33)PUMPGP
MAINHYDRAUL
(27)FILTERG
P
PILOTHYDRA
ULIC
(49)VALVE
GP
PRESSURE
REDUCING
BOOM/SWI
NG
IN
OUT
T
PG
PC
EE
HH
JJ
KK
FF
(34)SENSOR
AS
PRESSURE
LEFTPUMP
(35)SENSOR
AS
PRESSURE
RIGHTPUMP
SOS
GG
GP AT,AS A
T)
8/12/2019 323D Excavadora Cat
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6
7
PG
DR
MU
A
BSWINGMOTOR
(30)MOTORGP
SWING
(51)VALVEGP
SWINGCUSHION
DR
A1
B1
AL2
BL2
(16)VALVEG
SOLENOID
(BOOMFLOA
PILOTOIL)
185-0472
Dr
A
B
BOOMCYLINDER
CYL
CV
Pi
T
Dr
X
X
CYL
CV
DrX
AR4
(15)VALVEGP
SOLENOID
(BOOMFLOATUP)
297-0371
(9)VALVEGP
LOADCONTROL
BOOMCY
LINDER
225-4785
FINE
SWING
(4)SWITCHA
PRESSURE
(BOOMFLOA
309-5769
(3)SENSORAS
PRESSURE
OVERLOADWARNING
221-8859
S((LB
1b
L2, (1S1
8/12/2019 323D Excavadora Cat
11/15
Di2
STICK(1)
BOOM(2)
Pi2
Pi3
Di3
AL4 a
L4
SPi
SDr
SP3
(UP)
(OUT)
(IN)
B
aL3
(45)VALVEGP
LOADCONTR
OL
STICKCYLIND
ER
bL3
b
AL2
BL2
aL2
bL4
R.C.V
-A
Pa1
Pa2
FB
2
Pb1
Pb2
PILOTOIL)
185-0472
C.V-C
FA1
FB2
BL3
AL3
(7)VALV
EGP
CONTROL
VAB
308-4747
(6)VALVEGP
CONTROL
AUXILIARY
259-7378
(D
OWN)
(UP)
FA2
P1 (4P B
8/12/2019 323D Excavadora Cat
12/15
6
7
P2
Pi1
P1
DR1
DR2
DR3
DR4
DR5
DR6
P-IN
PSA1
PS
A2
T-OUT1
T-OUT2
Pi2
(26)FILTERGP
CASEDRAIN
(29)MANIFOLD
GP
CONTROL
(21)ACCUMULATO
RGP
P
TB1
(48)VALVEGP
PRESSURE
REDUCING
SOLENOID
NO.1(TRAVEL)
NO.2(SWING)
NO.3(LOCK)
(40)T
ANKGP
HYDRAU
LICOIL
7
8/12/2019 323D Excavadora Cat
13/15
8
EF
TRAVEL(L)
TRAVEL(R)
(47)VALVEGP
PILOTTRAVEL
T1
T5
BACK
FWD
BACK
FWD
T2
T4
T6
T3
TT
T
P
aL1
bL
1
bR1
aR1
P1
P2
R
G
P1
P2
R
G
SINGLE
SINGLE
DOUBLE
DOUBLE
(20)VALVEGP
SOLENOIDANDRELIEF
(1-WAY/2-WAYFLOW)
323-7942
36S
WITCHAS
38
SWITCHAS
(19)VALVEGP
SOLENOIDANDRELIEF
(1-WAY/2-WAYFLOW)
297-0265
C FA2
8/12/2019 323D Excavadora Cat
14/15
ENR5529(Dimensions:39inchesx28inches)
CD
A
C
B
D
E
FG
(41)VALVEGP
COOLERBYPASS
(28)FILTERGP
RETURN
OIL
HL
(12)VALVEGP
PILOT
206-3336
RP
RT
1
3
2 Pa2
Pb2
R.C.V-C
R.C.V-B
R.C.V-A
R.C.V-C F
(36)S
WITCHAS
P
RESSURE
L
HTRAVEL
(1)BLO
CK
(38)SWITCHAS
PRESSURE
RHTRAVEL
72
9)
CON
8/12/2019 323D Excavadora Cat
15/15
K30Page,(Di
AB
8
JLP
JLT
STICK
SWING
O
UT
J
L1
INJL3
R
L
JL2
JL4
BUCKET
BOOM
OPEN
CLOSE
DOWN
UPJR1
JR2
JR3
JR4
A1
A2
A3
A4
A5
A6
A7
A8
B1
B2
B3
B4
B5
B6
B7
B8
(50)VA
LVEGP
SH
UTTLE
(2C
JRP
JRT
(43)VALVEGP
JOYSTICK
LEFTHAND
(
44)VALVEGP
J
OYSTICK
R
IGHTHAND
aR3
aR4
bR3
bR4
bL3
bL2
bL4
aL2
P
i1
(14)VALVE
GP
SHUTTLE
164-6980
(37)SWIT
CHAS
PRESSUR
E
PILOT