©
2002 Caterpillar
All Rights Reserved
Printed in U.S.A.
RENR3110-02
April 2002
365B Excavator
Hydraulic System
365B L:
AGD1-235
9PZ1-474
9TZ1-530
4XZ1-339
14
15
16 54
55
21
41
42
22
18
19
20
61
35
37
39
40
57
63
62
6059
58
24
46
45
43
41
55
52
5048
49
32
30
28
27
25
26
Main Control Valve
17
f00914
Pilot Manifold
PIN
Pi3
Pi2
Pi1
PSA3
PSA2
PSA1
PSA
4
DR3
DR2 DR1
TOUT
PG
Pi6
Pi5
Pi4
DR6
DR5
DR4
PAC
f00915
70
71
75
76
72
P
P
R
T1
L'
L'
B' A'
BR
BR
MB
MA
M
MB
A'B'
LEFT
PR
PG
E
F
L2
D
L1
Qmax Qmin
T1
A'
D
F
E
P
T
M2
M1
B'
B
P1
P2
Dr
REV
FWD FWD
A
T2
T2
(PS)
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
R1
D1
D2
R2
AL4
BR1
R2
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
UP
DR4
LS1g
LS1
SA1
M1g
M1
P2
P1
)(
)(
M
MA
QminQmax
B
A
CLOSE
PD
P1
P2
Dr
X
DOWN
OPEN
SA2
OUT
IN
MAIN CONNNECTOR LINE
PILOT LINE
DRAIN LINE
Hydraulic Schematic
140-0690
1
2
3
4
5
6
7
9
8
13
14 15 16 17
18
19
21
22
23 24
25
26
27
28
29 30 31 32 33 34 35 36 37 38 39 40
42
43 44 45
46
47
48 49 50 51 52 53 54
55
56 57 58 59 60 61 62 63
64
65
66 67 68 69
70 71 72
73
74
75
76
41
20
10
77
78 79 80
81
82
83
84
85
86
87 88
2
3
1
7
11
54
858483
86
81
888786
82
80
13
Item
Component
STANDARD COMPONENTS
Component
No.
Item
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
Drain Filter
30
31
32
33
34
35
36
37
38
39
40
41
42
44
43
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
Bucket Cylinder
Stick Cylinder
Boom Cylinder
Travel Motor (Right)
Travel Brake Valve (Right)
Travel Motor (Left)
Swing Motor (Right)
Travel Brake Valve (Left)
Swing Control Valve
Swing Parking Brake Solenoid
Swing Motor (Left)
Cushion Crossover Relief Valve
Swivel
Attachment Spool Proportional Valve
Bucket Spool Proportional Valve (Close)
Boom Spool Proportional Valve (Close)
Main Control Valve
Stick Spool Proportional Valve (In)
Left Travel Spool Proportional Valve (Frwd)
Right Travel Spool Proportional Valve (Frwd)
Signal Duplication Valve (Boom Side)
Signal Bypass Valve
Signal Relief Valve (Travel)
Signal Duplication Valve (Stick Side)
Solenoid Valve (Neutral Bypass)
Neutral Flow Control Valve
Differential Pressure Relief Valve (Rear)
Flow Compensator Valve (Attachment)
Attachment Control Valve
Flow Compensator Valve (Bucket)
Bucket Control Valve
Flow Compensator Valve (Boom)
Boom Control Valve
Stick Control Valve
Flow Compensator Valve (Stick)
Left Travel Control Valve
Flow Compensator Valve (Left Travel)
Right Travel Control Valve
Flow Compensator Valve (Right Travel)
Differential Pressure Relief Valve (Front)
Signal Relief Valve (Boom Side)
Signal Relief Valve (Heavy Duty)
High/Low Relief Solenoid (Boom Side)
Signal Relief Valve (Travel)
Swing Pump
Cooling Pump
Pilot Pump
Rear Pump
Charged Pump
Front Pump
Drain Filter
Oil Cooler
Hydraulic Tank
Return Filter
Swing Pump Pressure Sensor
Accumulator
Hydraulic Activation Valve
Valve
Pilot Relief Valve
Pilot Oil Manifold
Proportional Reducing Valve
Travel Speed Solenoid Valve
Front Pump Pressure Sensor
Cooling Fan Motor
Back Pressure Valve
Return Filter
Bypass Check Valve
Pilot Filter
Right Travel Spool Proportional Valve (REV)
Left Travel Spool Proportional Valve (REV)
Line Relief Valve (Stick Cylinder Rod End)
Stick Spool Proportional Valve (Out)
Stick Drift Reduction Valve
Line Relief Valve (Stick Cylinder Head End)
Stick Drift Reduction Solenoid
Line Relief Valve (Boom Cylinder Head End)
Boom Drift Reduction Valve
Boom Drift Reduction Solenoid
Line Relief Valve (Boom Cylinder Rod End)
Boom Spool Proportional Valve (Down)
Line Relief Valve (Bucket Cylinder Rod End)
Bucket Cylinder Proportional Valve (Open)
Line Relief Valve (Bucket Cylinder Rod End)
Attachment Spool Proportional Valve
Load Signal Control Valve
Signal Relief Valve (Stick Side)
High/Low Relief Solenoid (Stick Side)
f05416
12
11
