©
2003 Caterpillar
All Rights Reserved
Printed in U.S.A.
RENR7198
February 2003
365B Series II Front Shovel
Hydraulic System
PEG1-UP
PIN
Pi3
Pi2
Pi1
Pi6
Pi5
DR6
DR5
DR4
PAC
PSA3
PSA2
PSA1
PSA4
DR3
DR2
DR1
TOUT
PG
65
Main Control Valve
Pilot Oil Manifold
18
44
24
23
39
16
49
46
48
50
31
55
58
19
21
22
34
54
60
59
57
53
56
51
52
47
43
62
61
63
67
17
15
41
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
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
)(
)(
M
MA
QminQmax
B
A
PD
P1
P2
Dr
X
SA2
PF
PILOT LINE
DRAIN LINE
Hydraulic Schematic
MAIN CONNECTOR LINE
229-2883
1
2
2
3
4
5
6
7
8 8 9
10
10
11
12
13
22
21
20
19
18
17
16
15
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
72
73
74
75
76
77
78
79
80
81
82
Item
Component
STANDARD COMPONENTS
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
37
38
39
40
41
42
44
43
Item
Component
No.
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
Master Cylinder
Bottom Dump Cylinders
Right Travel Motor
Left Travel Motor
Swing Parking Brake Solenoid Valve
Bucket Cylinders
Stick Cylinder
Boom Cylinders
Travel Brake Valve (Right)
Travel Brake Valve (Left)
Swing Control Valve
Anti-Reaction Valves
Proportional Valve (Bottom Dump Spool)
Proportional Valve (Bucket Cylinder Rod End)
Proportional Valve (Boom Cylinder Rod End)
Main Control Valve
Proportional Valve (Stick Cylinder Rod End)
Swivel
Proportional Valve (Left Travel) (Forward)
Proportional Valve (Right Travel) (Forward)
Differential Pressure Relief Valve (Rear Pump)
Flow Compensator Valve (Bottom Dump)
Bottom Dump Control Valve
Flow Compensator Valve (Bucket)
Bucket Control Valve
Flow Compensator Valve (Boom)
Boom Control Valve
Signal Duplication 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 Pump)
Neutral Flow Control Valve
Line Relief Valve (Bottom Dump Head End)
Proportional Valve (Bottom Dump Spool)
Line Relief Valve (Bucket Cylinder Rod End)
Line Relief Valve (Bottom Dump Rod End)
Proportional Valve (Bucket Cylinder Head End)
Line Relief Valve (Bucket Cylinder Head End)
Proportional Valve (Boom Cylinder Rod End)
Boom Drift Reduction Valve
Solenoid Valve (Boom Drift Reduction Valve)
Line Relief Valve (Boom Cylinder Head End)
Signal Relief Valve (Low Pressure)
Signal Relief Valve (High Pressure)
Stick Drift Reduction Valve
Solenoid Valve (Stick Drift Reducing Valve)
Solenoid Valve (High/Low Relief)
Line Relief Valve (Stick Cylinder Rod End)
Proportional Valve (Stick Cylinder Head End)
Line Relief Valve (Stick Cylinder Head End)
Proportional Valve (Left Travel) (Reverse)
Proportional Valve (Right Travel) (Reverse)
Travel Speed Solenoid Valve
Proportional Reducing Valve (PS Pressure)
Pilot Relief Valve
Valve (Hydraulic Activation)
Accumulator
Pilot Oil Manifold
Pilot Filter
Radiator Fan Motor
Swing Pump Pressure Sensor
Drain Filter
Return Filter
Hydraulic Tank
Return Filter
Drain Filter
82
77
78
79
80
81
Front Pump
Charge Pump
Rear Pump
Pilot Pump
Cooling Pump
Swing Pump
Solenoid Valve (Neutral Bypass)
Line Relief Valve (Boom Cylinder Rod End)
Solenoid Valve (Hydraulic Activation)
14
124
113
1
9
8
10
2
20
Oil Cooler
69
Left Swing Motor
Right Swing Motor
7
5
77 78 79
74
76
5552513118
828180
70
g00955777
SERIES II
