RENR7147-00
30 Page, (Dimensions: 39 inches x 28 inches)
Hydraulic Symbols (Electrical)
Electrical Symbols Table
325-AG135 PK-14
Circuit Identification
Number
Wire Color
Wire Gauge
Harness identification code
This example indicates
wire 135 in harness "AG".
325-PK-14
Wire Gauge
Wire Color
Circuit Number
Identification
Wire Number Identification Codes
Current Standard
Previous Standard
Electrical Schematic Example
Hydraulic Schematic Example
325-PK
Wire Color
Circuit Number
Identification
B
A
Wire
Wire
(EXAMPLE VALVE)
Current Standard
Transducer
(Fluid)
Transducer
(Gas / Air)
G
Generator
Electrical Wire
Pressure Switch
M
Electric Motor
Pressure Switch
(Adjustable)
Temperature Switch
Pressure
Symbol
Temperature
Symbol
Level
Symbol
Flow
Symbol
Electrical Symbols (Electrical)
ONE POSITION
TWO POSITION
THREE POSITION
VENTED
PRESSURIZED
RETURN ABOVE FLUID LEVEL
RETURN BELOW FLUID LEVEL
LINES CROSSING
LINES JOINING
TWO-WAY
THREE-WAY
FOUR-WAY
SPRING
CONTROL VALVES
RESTRICTION
LINE RESTRICTION
(FIXED)
2-SECTION PUMP
MAIN
AUX.
SPRING
(ADJUSTABLE)
VARIABILITY
LINE RESTRICTION
(VARIABLE)
LINE RESTRICTION
VARIABLE and PRESSURE
COMPENSATED
PRESSURE
COMPENSATION
PUMP: VARIABLE and
PRESSURE COMPENSATED
ENERGY TRIANGLES
HYDRAULIC PNEUMATIC
MEASUREMENT
PRESSURE
TEMPERATURE
FLOW
ROTATING SHAFTS
UNIDIRECTIONAL BIDIRECTIONAL
PUSH-PULL LEVER PEDALGENERAL MANUAL PUSH BUTTON SPRING
MANUAL CONTROL SYMBOLS
HYDRAULIC MOTORS
FIXED
DISPLACEMENT
VARIABLE DISPLACEMENT
NON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
HYDRAULIC PUMPS
FLUID STORAGE RESERVOIRS
CROSSING AND JOINING LINES
VALVE ENVELOPES
VALVE PORTS
BASIC COMPONENT SYMBOLS
FLUID CONDITIONER
PUMP or MOTOR
FLUID POWER SYMBOLS
FIXED
DISPLACEMENT
VARIABLE DISPLACEMENT
NON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
VALVES
PILOT CONTROL SYMBOLS
RELEASED PRESSURE
EXTERNAL RETURN
INTERNAL RETURN
REMOTE SUPPLY PRESSURE
SIMPLIFIED
COMPLETE
INTERNAL
SUPPLY PRESSURE
ACCUMULATORS
SPRING LOADED
GAS CHARGED
SOLENOID
or MANUAL
SOLENOID
and PILOT
SOLENOID and
PILOT or MANUAL
COMBINATION CONTROLS
SOLENOID
SERVO
THERMAL
DETENT
HYDRAULIC AND PNEUMATIC CYLINDERS
DOUBLE ACTING
SINGLE ACTING
BASIC
SYMBOL
SPRING
LOADED
CHECK VALVES
TWO
POSITION
INFINITE
POSITIONING
FLOW IN ONE
DIRECTION
FLOW ALLOWED IN
EITHER DIRECTION
THREE
POSITION
CROSS
FLOW
PARALLEL
FLOW
INTERNAL PASSAGEWAYS
NORMAL POSITION
A B
P T
A B
P T
SHIFTED POSITION
INFINITE POSITION
CONTROL VALVES
ATTACHMENT
MANUAL SHUTOFF
SHUTTLE PILOT
CONTROLLED
T
Hydraulic Cab Riser
RENR7147
June 2007
330D Material Handler
Hydraulic System
PEL1-UP
©
2007 Caterpillar
All Rights Reserved
Printed in U.S.A.
Tap Locations
Pressure, Sampling, and Sensor
Tap
Number
Description
Schematic
Location
AA Pilot Pump Delivery Pressure A-6
BB Right Pump Delivery Pressure B-5
CC Power Shift Pressure B-5
DD Left Pump Delivery Pressure B-5
EE Right Pump Load Signal C-5
FF Left Pump Load Signal C-5
GG Rotate Solenoid B1 Pressure E-1
HH Rotate Solenoid B2 Pressure E1
JJ HCR Up Solenoid Pressure D-1
KK HCR Down Solenoid Pressure D-1
MM Auxilliary Pump Delivery Pressure E-1
SOS Hydraulic Oil Sampling Port A-6
C
Description
Part
Number
Machine
Location
Schematic
Location
Accumulator As - Oilot Oil 164-6981 1 C-8
Block As 185-0488 2 D-5
Block As 201-9379 3 D-7
Connector As 257-2979 4 F-1
Control Gp - Joystick (LH) 259-7763 5 C-4
Control Gp - Joystick (RH) 259-7762 6 C-3
Cylinder Gp - Boom Note A 7 F-5
Cylinder Gp - Grapple Note A - - D-3
Cylinder Gp - Hydraulic Cab Riser 235-8287 8 F-2
Cylinder Gp - Stick Note A 9 F-3
Filter & Valve Gp - Pilot 158-8987 10 A-6
Filter Gp - Case Drain 126-2075 11 B-6
Filter Gp - Hydraulic Return 188-4140 12 B-7
Manifold Gp - Control (Pilot Oil) 215-5037 13 B-7
Motor Gp - Fan 242-6776 14 A-8
Motor Gp - Swing 266-7922 15 F-8
Motor Gp - Travel (LH) 271-6376 16 F-7
Motor Gp - Travel (RH) 271-6376 17 F-6
Pump Gp - Auxillary 207-8235 18 C-6
Pump Gp - Hydraulic Fan 259-0815 19 B-6
Pump Gp - Main 283-6116 20 C-6
Switch As - Action Input Pressure (Fore Boom) 167-3466 21 C-3
Switch As - Action Input Pressure (Joysticks) 167-3466 22 B-4
Switch As - Action Input Pressure (Travel Left) 167-3466 23 B-5
Switch As - Action Input Pressure (Travel Right) 167-3466 24 B-5
Switch As - Pressure (Boom Circuit Pilot) 167-3466 25 E-4
Switch As - Pressure (Boom Lower) 224-0744 26 E-4
Swivel Gp 234-4440 27 E-7
Valve As - Shutoff (Cab Manual Lowering) 232-7226 28 F-2
Valve As - Shutoff (Cab Manual Lowering) 226-9860 29 F-1
Valve Gp - Check (Head End Boom Cylinder) 297-0371 30 E-5
Valve Gp - Check (Rod End Boom Cylinder) 297-0370 31 E-5
Valve Gp - Control (HCR, Rotator, Medium Press) 285-1745 32 E-1
Valve Gp - Control (Reverse Flow) 234-4624 33 A-8
Valve Gp - Flow Control (Boom Cyl Decompression) 168-0712 34 D-3
Valve Gp - Flow Control (Boom Float, Pilot Oil) 201-9236 35 E-4
Valve Gp - Load Control (HCR Lowering) 185-1247 36 E-1
Valve Gp - Load Control Left (Boom Lower , Drift Red) 263-1962 37 F-5
Valve Gp - Load Control Left (Stick Lowering) 202-9264 38 F-4
Valve Gp - Load Control Right (Boom Lower , Drift Red) 263-1962 39 F-4
Valve Gp - Load Control Right (Stick Lowering) 202-9264 40 F-3
Valve Gp - Main Control 285-1542 41 D-5
Valve Gp - Manual (Boom Lowering) 270-5692 42 F-5
Valve Gp - Oil Cooler Bypass 190-7745 43 B-8
Valve Gp - Pilot (Travel) 270-5947 44 B-5
Valve Gp - Pressure Reducing (Boom Swing Priority) 232-4102 45 C-7
Valve Gp - Pressure Reducing (HCR / HSRV) 257-2892 46 D-1
Valve Gp - Relief (Line) 255-5661 47 D-6
Valve Gp - Shuttle 259-7732 48 C-8
Valve Gp - Shuttle (Joystick) 185-0462 49 B-4
Valve Gp - Solenoid (Boom Float) 185-0472 50 E-4
Valve Gp - Solenoid (Heavy Lift) 121-6303 51 C-7
Valve Gp - Solenoid (Negative Flow Control, PRV) 171-0188 52 C-5
Valve Gp - Solenoid (Reversing Fan) 242-6880 53 A-7
Valve Gp - Solenoid (Work Tool 4 Function) 259-7429 54 D-1
Valve Gp - Stop Valve, Stick In & Boom Up 255-7879 55 A-5
Valve Gp - Swing Cushion 158-9090 56 F-8
Valve Gp - Travel Counterbalance LH 204-2819 57 E-7
Valve Gp - Travel Counterbalance RH 204-2819 58 E-6
Note A: For Cylinder Part Numbers refer to the Parts Manual.
Component Locations
AAsos
19
BBCCDD
18 17 9
41
32411346 5452
46
52
34
54
GG
HH
JJ
KK
EE FF
16
57
17
58
17
58
16
57
18
33
19
18
20
19
27
2715
56
15
56
10
12
11
10
12
11
23
44
24
23
29
24
22
49
22
49
5
6
5
636
8
7
39
37
7
37
7
39
3
53
2
41
1
13
34
13
54
5421
34
46
46
52
34
36
8
29
44
28
28
4
414
33
14
20
9
38 40
9
9
38
40
3
53
2
41
1
13
342625
52
21
50
32
32
342625
50
30
31
30
31
43
43
42
42
45
45 47
48
48
47
51
51
55
55
A
B
MM
32
MACHINE COMPONENT LOCATIONS
MAIN CONTROL VAVLE
HCR & GRAPLE CONTROLS
PUMP & FILTER GP
STICK (2)
BOOM (1)
BUCKET
ATCH
TRAVEL (R)
STR TRAVEL
TRAVEL (L)
SWING
STICK (1)
BOOM (2)
VIEW A
VIEW B
VIEW C
TOP VIEW
SIDE VIEW
LOCK
SOLENOID
SWING
SOLENOID
TRAVEL
SPEED
SOLENOID
CONTROL MANIFOLD
RENRNNNN-NN VOL 1
NN Page, Color 2, (Dimensions: 00 inches x 00 inches)
RENR7147-00
30 Page, Color 2
THIS SCHEMATIC IS FOR THE 330D HYDRAULIC CAB RISER
MATERIAL HANDLER PART #: 294-9997 V00
LINE PATTERNS
Drain / Return Lines
Component Group
Pilot / Load Sensing Pressure
Pressure Line
Attachment
Air Line
CALLOUTS
Taps (Pressure, Sampling,Sensor) by letter
Components by number on Machine View
YY
52
Refer to the appropriate Service Manual for Troubleshooting,
Specifications and Systems Operations
DRAIN / RETURN LINE
HYDRAULIC CIRCUIT COLOR DESCRIPTIONS
IMPLEMENT & LEFT PUMP OUTPUT
IMPLEMENT (DRIVE) & RIGHT PUMP OUTPUT
POWER SHIFT CONTROL CIRCUIT
PILOT PUMP OUTPUT
GRAPPLE & HYDRAULIC CAB RISER PUMP OUTPUT
GRAPPLE CONTROL & GRAPPLE ROTATE CIRCUIT
HYDRAULIC CAB RISER CONTROL &
HYDRAULIC CAB RISER CYLINDER CIRCUIT
TRAVEL SPEED CONTROL CIRCUIT
SUPPLY LINE
HEAVY LIFT CONTROL CIRCUIT
BUCKET CONTROL & BUCKET CYLINDER CIRCUIT
RIGHT TRAVEL CONTROL & RIGHT TRAVEL MOTOR CIRCUIT
GENERATOR PUMP OUTPUT
STICK CONTROL & STICK CYLINDER CIRCUIT
SHUTTLE VALVE CONTROL CIRCUIT
BOOM CONTROL & BOOM CYLINDER CIRCUIT
FAN PUMP OUTPUT
LEFT TRAVEL CONTROL & LEFT TRAVEL MOTOR CIRCUIT
SWING CONTROL & SWING MOTOR CIRCUIT
NOTES:
Components referenced in SYSOP Manual
52
1
2
3
4
5
6
7
8
A
C
D
E
F
1
23
4
56
7
8
A
B
C
D
E
F
B
AA sos
GG
JJ
HH
KK
CC
DD
BB
FF
EE
MM
VALVE GP
CONTROL
(REVERSE FLOW)
234-4624
MOTOR GP
(FAN)
242-6776
VALVE GP
SOLENOID
(REVERSING
FAN)
242-6880
FILTER GP
OIL
(HYDRAULIC RETURN)
188-4140
VALVE GP
CHECK (OIL COOLER BYPASS)
(RCV)
190-7745
MANIFOLD GP
CONTROL
(PILOT OIL)(MF)
215-5037
ACCUMULATOR GP
HYDRAULIC
(PILOT OIL)
164-6981
MOTOR GP
SWING
266-7922
VALVE GP
SWING CUSHION
(FINE SWING)
158-9090
MOTOR GP
TRAVEL
271-6376
MOTOR GP
TRAVEL
271-6376
VALVE GP
CONTROL
(HYDRAULIC CAB
RISER, ROTATOR)
(MPV)
285-1745
VALVE GP
LOAD CONTROL
(BOOM LOWERING,
DRIFT REDUCTION,
RELIEF)
263-1962
VALVE GP
LOAD CONTROL
(BOOM LOWERING,
DRIFT REDUCTION,
RELIEF)
263-1962
VALVE GP
MANUAL
(BOOM LOWER)
270-5692
VALVE
SHUTOFF
(CAB MANUAL
LOWERING)
232-7226
VALVE GP
SHUTOFF
(CAB MANUAL
LOWERING)
226-9860
VALVE GP
LOAD CONTROL
(HCR LOWERING)(LCV)
185-1247
VALVE GP
LOAD CONTROL
(STICK LOWERING
CONTROL)
202-9264
VALVE GP
LOAD CONTROL
(STICK LOWERING
CONTROL)
202-9264
CONNECTOR
257-2979
VALVE GP
FLOW CONTROL
(BOOM CYLINDER
DECOMPRESSION)
(GFRV)
168-0712
VALVE GP
MAIN CONTROL
285-1542
VALVE GP
RELIEF (LINE)
255-5661
VALVE GP
SHUTTLE
259-7732
VALVE GP
PRESSURE
REDUCING
(BOOM,
SWING
PRIORITY)
232-4102
VALVE GP
SOLENOID
(HEAVY LIFT)
121-6303
PUMP GP
AUXILIARY
207-8235
PUMP GP
HYDRAULIC FAN
259-0815
VALVE GP
PILOT (TRAVEL)
270-5947
FILTER GP
OIL
(CASE DRAIN)
126-2075
VALVE GP
SHUTTLE
185-0462
FILTER & VALVE GP
PILOT (HYDRAULIC)
158-8987
CONTROL GP
JOYSTICK (LH)
259-7763
CONTROL GP
JOYSTICK (RH)
259-7762
VALVE GP
SOLENOID
(NEGATIVE FLOW
CONTROL, PROPORTIONAL
REDUCING VALVE)
171-0188
VALVE GP
(STOP VALVE, STICK IN
& BOOM UP) (ATT)
255-7879
SWITCH AS
PRESSURE
(ACTION INPUT)
167-3466
SWITCH AS
PRESSURE
(ACTION INPUT)
167-3466
SWITCH AS
PRESSURE (ACTION
INPUT, FORE BOOM)
167-3466
SWITCH AS
PRESSURE (ACTION
INPUT, FORE BOOM)
167-3466
VALVE GP
TRAVEL
COUNTERBALANCE
204-2819
VALVE GP
TRAVEL
COUNTERBALANCE
204-2819
SWIVEL GP
234-4440
VALVE GP
SOLENOID
(WORK TOOL,
4 FUNCTION)
(4MSV)
259-7429
VALVE GP
PRESSURE REDUCING
(CAB RISER, HSRV)
257-2892
BLOCK
201-9379
PUMP GP
MAIN
283-6116
BLOCK
185-0488
D
I
LEFT
PUMP
RIGHT
PUMP
PRESSURE
SENSOR
PRESSURE
SENSOR
TRAVEL(L)
TRAVEL(R)
T1
T5
BACK
FWD
BACK
FWD
T2
T4
T6
T3
JLP
JLT
STICK
SWING
OUT
JL1
IN
JL3
R
L
JL2
JL4
GRAPPLE
BOOM
OPEN
CLOSE DOWN UP
JR1
JR2
JR3
JR4
A1
A2
A3
A4
A5
A6
A7
A8
B1
B2
B3
B4
B5
B6 B7
B8
P2
Pi1
P1
DR1
DR2
DR3
DR4
DR5
DR6
P-IN
PSA1
PSA2
T-OUT1
T-OUT2
Pi2
HL Di2 Pi2 Pi3 Di3 DST PL PR Di1 HR
T
AL4
aL4
SP3
Di4 Pi4 Pi1
BP3
R3
aR5
AR5
BR5
AR3BR3aR3aL3
A
C
B
D
E
F
G
JRP
JRT
bR5
TT
TP
B1
A1
B2
A2
DR
P2
P1
P
A
T
A1
A2
B1
B2
P
T
IN
T
OUT
(T3) (T1) (T4) (T2) (JL2)(JL1)(JR3)(JR2)(JR4) (JR1) (JL3) (JL4)
Pi5
bR3
PAC
PG
PC
S
B1
B2
STOP VALVE
BOOM UP
STICK IN
S
Ps2
SP2
BP2
D1
Dr1
S1A4
B
L
L1
D0
Ps1
Pi1
a4
a1
M1
a3
M2
a2
Pi2
a5
DR
DR1
L3
L2
A
A
B
B
T
P
S
S
T
Pi
P2
P1
T
A2
A1
aR1 aL1 bR1 bL1
bL3 bL2 bL1
bR1
bR4
BL3 AL3
AL1AL2
BL1BL2
aL2
aR1
AR1 BR1
BR4AR4
aL1
aR4
bL4
(STICK IN)
(BOOM UP)
bR2
Pi1
bR4
aL2 bL2bL3
bL4
aR2
AR2BR2
bR2
4MSV-T
(LOC E-1)
MF-Pi2
(LOC F-8)
MF-Pi1
(LOC E-7)
RCV-C
(LOC F-8)
MPV-P
(LOC D-1)
RCV-D
(LOC C-4)
RCV-E
(LOC D-1)
LCV-DR
(LOC E-1)
SLCV-DR
(LOC E-3)
BLCV-DR
(LOC F-5)
4MSV-P
(LOC E-1)
NO.1
(TRAVEL)
NO.2
(SWING)
NO.3
(LOCK)
SLCV-Pp
(LOC E-4)
TANK LINE-1
(LOC E-8)
GFRV-DR
(LOC C-3)
HSRV-DR
(LOC D-1)
GFRV-IN
(LOC C-3)
MF-DR4
(LOC F-1)
RCV-B
(LOC D-5)
RCV-A
(LOC D-8)
RCV-A
(LOC B-8)
RCV-B
(LOC B-8)
STICK(2)
BOOM(1)
GRAPPLE
BUCKET
TRAVEL(R)
TRAVEL(L)
SWING
STICK(1)
BOOM(2)
(UP)
(OUT)
(IN)
(R)
(L)
(FWD)
(BACK)
(FWD)
(BACK) (CLOSE)
(OPEN) (UP)
(DOWN)
(OUT)
(IN)
R2
ST
SP1
BL3
R1
BT
BR4
BP1
MF-T-OUT2
(LOC F-2)
TRAVEL MOTOR (LEFT)
TRAVEL MOTOR (RIGHT)
(RIGHT)
(RIGHT)
(LEFT)
(LEFT)
T1
Pp3
Pp3
A
B
A
B
STICK
CYLINDER
BOOM
CYLINDER
SWING MOTOR
OUT
IN
DR
IN
OUT
DR
T
Pi
DR
CV
CYL
Pp
DR
T
A
A
T
DR
Pp
X
C
C
X
GRAPPLE
OPEN EPRV
HCR
CAB RAISER EPRV
GRAPPLE
MULTI
CYLINDER
HCR CYLINDER
T
P
A1
B1
A2
B2
A3
B3
A4
B4
DR
CYL
CV
Pi
T
X
X
X
X
(HCR UP)
(HCR DOWN)
T2
T1
T2
B
A
BG
AG
MU
DR
PG
AG
BG
BG
AG
AL3
AR4
BR4
AL2BL2
AR1BR1AL1BL1
A
B
PB1 PB2
PL2
PL3
PL1
DR
A1B1 PB1B2 PB2A2
M
GRAPPLE
ROTATE
CAB
LOWER
CAB
RISER
LS
T
PA1PA2 P
ROTATE
CCW
ROTATE
CW
aR2
BL3
RCV-C
(LOC B-8)
MPV-P
(LOC C-6)
RCV-E
(LOC A-8)
4MSV-T
(LOC B-7)
4MSV-P
(LOC C-5)
MF-Pi2
(LOC B-7)
MF-Pi1
(LOC B-8)
MPV-DR
(LOC F-8)
LCV-DR
(LOC B-8)
BLCV-Pi
(LOC C-5)
BLCV-DR
(LOC B-7)
SLCV-DR
(LOC B-7)
SLCV-Pp
(LOC C-7)
MF-DR4
(LOC B-7)
AR2 BR2
TANK LINE-1
(LOC A-6)
GFRV-IN
(LOC A-5)
GFRV-DR
(LOC A-5)
HSRV-DR
(LOC C-5)
MPV-DR
(LOC E-2)
DR
A1
B1
MF-T-OUT2
(LOC C-8)
RCV-C-A
(LOC E-5)
RCV-C-B
(LOC E-5)
RCV-C-A
(LOC F-8)
RCV-C-B
(LOC F-8)
12
40
39
2725
26
11
8
9
8
6
7
6
5
3
4
10
1
13
14
15
16
18
17
19 20
21
22
23
30
29
28
41
42
43
31
53
52
59
54
32
33
47
46
44
45
48
55
56
57
49
50
51
38
37
36
35
Callout
Numbers
Description
Schematic
Location
1 Swing Brake F-8
2 Swing Motor F-8
3 Left Travel Motor F-7
4 Right Travel Motor F-6
5 Grapple Cylinders D-3
6 Boom Lowering Control Valves F-4, F-5
7 Boom Cylinders F-5
8 Stick Lowering Control Valves F-3, F-4
9 Stick Cylinders F-3
10 Swivel E-6
11 Cab Riser Cylinder F-1
12 Anti-drift Valve F-1
13 Boom II Control Valve D-8
14 Stick I Control Valve D-7
15 Swing Control Valve D-7
16 Left Travel Control Valve D-7
17 Straight Travel Control Valve D-7
18 Main Relief Valve D-8
19 Right Travel Control Valve D-6
20 Grapple Control Valve D-6
21 Main Control Valve D-5
22 Boom I Control Valve D-5
23 Stick II Control Valve D-5
24 Reduction Valve, Grapple Open D-3
25 Cab Riser Control Valve C-4
26 Grapple Rotate Motor E-2
27 Grapple Rotate Control Valve E-2
28 Hydraulic Activation Valve E-2
29 Solenoid Valve (Hydraulic Activation) C-8
30 Accumulator C-8
31
Pressure Reducing Valve
(Boom Priority Mode and Swing Priority Mode)
C-7
32 Heavy Lift Solenoid C-7
33 Auxiliary Pump (Grapple) C-6
34 Case Drain Filter B-7
35 Travel Pilot Control Valve B-5
36 Proportional Reducing Valve (Negative Flow Control) C-5
37 Pilot Control Valve (Stick and Swing) C-4
38 Pilot Control Valve (Grapple and Boom) C-3
39 Reducing Valve D-1
40 Solenoid Valve Group (Cab Riser and Grapple Rotate) D-1
41 Swing Brake Solenoid Valve B-8
42 Travel Speed Solenoid Valve B-8
43 Pilot Oil Manifold B-7
44 Left Pump B-6
45 Right Pump B-6
46 Pilot Pump B-6
47 Fan Pump B-6
48 Proportional Reducing Valve (Power Shift Pressure) B-6
49 Travel Pressure Switch (Left) B-5
50 Travel Pressure Switch (Right) B-5
51 Pressure Switch (Implement and Swing) B-4
52 Oil Cooler B-8
53 Return Filter B-7
54 Hydraulic Tank A-7
55 Pilot Relief Valve A-6
56 Pilot Filter A-6
57 Stop Valves (Stick In and Boom Up) A-5
59 Fan Motor (Hydraulic Oil Cooler) A-8
58 Reducing Valve (Grapple Open) D-3
Referenced by Systems Operations Manual - KENR7868.
MAIN
RELIEF
VALVE
GRAPPLE
TRAVEL / SWING
BOOM / STICK
HCR / GRAPPLE ROTATE
BLCV-Pi
(LOC E-4)
B A
DR
P
A
T
B A
DR
aR4
B
A
2
VALVE GP
CHECK
(HEAD END
BOOM CYL)
297-0371
VALVE GP
CHECK
(ROD END
BOOM CYL)
297-0370
VALVE GP
SOLENOID
(BOOM FLOAT)
185-0472
SWITCH AS
PRESSURE
(BOOM LOWER)
224-0744
VALVE GP
FLOW CONT.
(BOOM FLOAT,
PILOT OIL)
201-9236
SWITCH AS
PRESSURE
(BOOM PILOT)
167-3466
Pi1
34
24
Component Locations
4MSV: 4 MULTI SOLENOID VALVE
MF: PILOT MANIFOLD
HSRV: HCR SPEED REDUCTION VALVE
GFRV: GRAPPLE FLOW REDUCTION VALVE
LCV: LOWERING CHECK VALVE
MPV: MEDIUM PRESSURE VALVE
RCV: RETURN CHECK VALVE
REV FAN: REVERSIBLE FAN
ATT: ATTACHMENT
