©
2002 Caterpillar
All Rights Reserved
Printed in U.S.A.
This attachment schematic is to be used in conjunction with the Standard Schematic in this Service Manual.
RENR3704-01
September 2002
365B Excavator
Rear Attachment Control
AGD1-235
4XZ1-339
9PZ1-474
9TZ1-530
Hydraulic System - Attachment
PILOT LINE
DRAIN LINE
This Attachment Schematic is intended to
be used in conjunction with the Standard
Hydraulic Schematic in this Service Manual.
Hydraulic Schematic
MAIN CONNECTOR LINE
140-0721
Item
Component
STANDARD COMPONENTS
No.
1
2
3
4
5
6
7
Shuttle Valve
Shuttle Valve
Ball Valve
Check Valve
Counterweight Cylinder Control Valve
Solenoid Valve
Counterweight Cylinder
21
4
5
3
6
R
T1
RIGHT
L'
L'
B' A'
BR
BR
MB
MA
M
MB
A'B'
STICK CYLINDER
LEFT
BOOM CYLINDERBUCKET CYLINDER
PR
PG
E
F
SWING
L2
D
L1
Qmax Qmin
T1
LEFT
A'
D
F
E
P
T
M2
M1
B'
B
P1
P2
Dr
REV
FWD FWD
A
TRACK
T2
X
T2
REV
BL2
AL2
B
LL1S
PSA3
PSA2
PSA1
PG
PIN
TOUT
DR1
DR2
DR3
Pi5
PAC
Pi3
Pi2
Pi1
Pi4
Pi6
M1
T2T1
R
S
AS
PSA4
DR6
M
G
aR3
aL3
bR3
bL3
aL1
aR1
bL4
aL4
bR1
PF
PR
bL1
P
R1
D1
D2
R2
AL4
BR1
R2
ATT
AR1
BL1
AL1
AR3
BR3
AL3
BL3
RIGHT
S1
DR5
BL4
dR1
bL2
QmaxQmin
B
M2
M2g
A
LS2
LS2g
PS2g
PS2
M2g'
M1g'
PS1g
PS1
aL2
R1
STICK
BUCKET
UP
BOOM
TRAVEL TRAVEL
DR4
LS1g
LS1
SA1
M1g
M1
P2
P1
P
)(
)(
M
MA
QminQmax
B
A
CLOSE
PD
P1
P2
Dr
C
P
V
X
Dr
Pi
P
T
C
X
B1
DOWN
OPEN
A1
T
P
SA2
OUT
IN
1
2
7
5
6
4
3
7
f06549
