©
2002 Caterpillar
All Rights Reserved
Printed in U.S.A.
RENR5334
April 2002
365B and 365B Series II Excavators
Hydraulic System
365B LU:
JMB1-UP
365B MH:
CTY403-UP
365B L:
9PZ475-UP
Pilot Manifold
PIN
Pi3
Pi2
Pi1
PSA3
PSA2
PSA1
P
S
A4
DR3
DR2 DR1
TOUT
PG
Pi6
Pi5
Pi4
DR6
DR5
DR4
PAC
f00915
48
49
52
53
72
12
13
14
16
17
18
31
33
35
36
47
46
45
39
38
37
21
20
23
.25
26
f05476
Main Control Valve
19
R
T1
L'
L'
B' A'
BR
BR
MB
MA
M
MB
A'B'
PR
PG
E
F
L2
D
L1
Qmax Qmin
T1
A'
D
F
E
P
T
M2
M1
B'
B
P1
P2
Dr
FWD FWD
A
T2
X
T2
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
bL1
P
R1
D1
D2
R2
AL4
BR1
R2
AR1
BL1
AL1
AR3
BR3
AL3
BL3
S1
PR
DR5
BL4
bL2
QmaxQmin
B
M2
M2g
A
LS2
LS2g
PS2g
PS2
M2g'
M1g'
PS1g
PS1
aL2
R1
DR4
LS1g
LS1
SA1
M1g
M1
P2
P1
P
)(
)(
M
MA
QminQmax
B
A
PD
P1
P2
Dr
X
SA2
IN
PF
1
2
3
3
4
7
5
6
8
9
10
11
12 13
14
15
16
17 18
19
20
21 22
23
24
25 26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
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
MAIN CONNNECTOR LINE
PILOT LINE
DRAIN LINE
Hydraulic Schematic
201-9308
206-3274
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
30
31
32
33
34
35
36
Bucket Cylinder
Stick Cylinder
Boom Cylinder
37
38
39
40
41
42
43
44
45
47
46
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
Travel Counterbalance Valve (Right)
Travel Motor (Right)
Travel Motor (Left)
Travel Counterbalance Valve (Left)
Swing Motor (Right)
Swing Control Valve
Swing Parking Brake Solenoid
Swing Motor (Left)
Attachment Proportional Valve
Bucket Proportional Valve (Close)
Boom Proportional Valve (Rod End)
Swivel
Stick Proportional Valve (In)
Left Travel Proportional Valve (Frwd)
Right Travel Proportional Valve (Frwd)
Main Control Valve
Solenoid Valve (Neutral Bypass)
Neutral Flow Control Valve
Differential Pressure Relief Valve (Rear)
Flow Compensator Valve (Boom)
Work Tool Control Valve
Flow Compensator Valve (Bucket)
Bucket Control Valve
Flow Compensator Valve (Boom)
Boom Control Valve
Signal Duplication Valve (Stick Side)
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)
Attachment Proportional Valve
Bucket Proportional Valve (Open)
Boom Proportional Valve (Head End)
Boom Drift Reduction Valve
Signal Relief Valve (Travel)
Signal Relief Valve (Stick Side)
High/Low Relief Valve Solenoid Valve
Stick Drift Reduction Valve
Stick Proportional Valve (Out)
Left Travel Proportional Valve (Rev)
Right Travel Proportional Valve (Rev)
Travel Speed Solenoid Valve
Proportional Reducing Valve
Pilot Relief Valve
Pilot Valve (Hydraulic Activation)
Solenoid Valve (Hydraulic Activation)
Accumulator
Pilot Oil Manifold
Pilot Filter
Bypass Check Valve
Back Pressure Valve
Oil Cooler
Cooling Fan Motor
Swing Pump Pressure Sensor
Drain Filter
Return Filter
Hydraulic Tank
Return Filter
Drain Filter
Front Pump
Charged Pump
Rear Pump
Pilot Pump
Cooling Pump
Swing Pump
58
717069 65
63
1
2
3
54
76
8
11
686766
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