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INTERACTIVE SCHEMATIC
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Cover PageInformation
SchematicMachine Views
Component TableTap Table
Fluid Power Symbols
Electrical Symbols
Front Frame
Rear Frame
Tap Views
Features
Options
Bookmarks X
EC-C3EC-C2 E-C60
EC-C1
E-C61
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Hydraulic System
2005 Caterpillar, All Rights Reserved Printed in U.S.A.
RENR4197-03September 2005
16H Motor Grader
ATS1-UP
Page 1 of 2COMPONENT LOCATION
Description PartNumberMachineLocation
SchematicLocation
Cover 101-9346
Cylinder Gp 9T-8944 5Cylinder Gp 262-1905 6Cylinder Gp 9T-3206 7
Cylinder Gp 121-9244
12
Cylinder Gp 165-2507 8Cylinder Gp 165-2506
11109
Cylinder Gp 262-1904 4
3F-13, G-1,
J-2, J-4
Cylinder Gp 9T-3050
2
Manifold - Left 102-8385Manifold - Right 102-6238Motor Gp - Gear 224-7040 13Motor Gp - Gerotor 9T-5977 14Pump Gp - Metering
Pump Gp - Piston 184-7448
15
Pump Gp - Piston(Implement And Steering) 177-7517 17
16
Swivel Gp 260-6502 20Tank Gp And Filter 207-2410 21Valve Gp - Check 175-0447 22Valve Gp - Combination 9T-5957 23
2425262728293031
B-11
B-9
F-11Switch As - Pressure 230-5771 19 B-6Sensor Gp - Pressure 167-1709 18 B-5
C-13
C-7Valve Gp - Control 107-0560Valve Gp - Control 107-0554Valve Gp - Control 107-0562Valve Gp - Control 107-0555Valve Gp - Control 107-0558Valve Gp - Control 107-0565Valve Gp - Control 107-0556Valve Gp - Control 107-0563Valve Gp - Mounting
(Fan Speed Solenoid) 193-5765 32
D-1, D-14,H-14
G-11F-4
G-12
F-3
G-8G-7
F-5
D-8D-6B-5
G-10
B-5
E-6E-9E-4D-10
E-13, H-4E-2, H-3
E-12E-3
C-11
Valve Gp - Pump Control(Pressure And Flow Compensator)
(for Hydraulic Fan Pump)
104-3122 34 C-9(for Implement & Steering Pump)
168-2210 33 C-10
Valve Gp - Unit Test 4 (LH)(Implement Control Valve Manifold) 104-8658
Valve Gp - Unit Test 4 (RH)(Implement Control Valve Manifold) 104-8676
36 D-13
E-137
(Wheel Lean)(Side Shift)
(Right Blade Lift)(Left Blade Lift)
(Circle Drive)(Center Shift)
(Blade Tip)(Articulation)
(Fan Drive)
(Fan Drive)
(Hydraulic Fan)
(Steering)111-0491
1
E-7Note A222-3771Note B
(Circle Drive)(Hydraulic Fan)
(Wheel Lean)Steering (RH)Steering (LH)
(Side Shift)(Center Shift)
(Blade Tip)
(Blade Lift)
(Articulation)
Accumulator - Steering 248-6251 B-6
Valve Gp - Shuttle 131-0753 35 C-8
Valve Gp - Pump Control(Pressure And Flow Compensator)
Page 2 of 2COMPONENT LOCATION
Accumulator Gp 160-9413Cylinder Gp - Ripper 113-5264
3839
Pump Gp - Electric Drive(Secondary Steering) 123-8915 40
Valve Gp - Check 9T-6146 42Valve Gp - Control 107-0559 43
Valve Gp - Relief 9T-8071 4544
Valve Gp - Mounting (Blade Cushion Solenoid Valve) 253-1320
Valve Gp - Check 9T-1013 41
G-2, G-14J-13
A-6
C-7I-13
A-7F-2, F-13
A-7
Attachments
Description PartNumberMachineLocation
SchematicLocation
(Secondary Steering)
(Ripper)(Secondary Steering)(Secondary Steering)
(Blade Cushion)
239-9893239-9894
4647
I-6I-1
AccuGrade AttachmentsManifold Gp - Control (LH)Manifold Gp - Control (RH)
Note A: Used on 16H(1-215).Note B: Used on 16H(216-UP).Note C: Used on 16H(216-221).
TAP LOCATION
TapNumber Description
SchematicLocation
BB C-9C-12
B-8
Implement And Steering Load Sensing Signal PressureCC Pump Supply Pressure (Implement / Steering)
AA Pump Output Pressure (Fan)
FLUID POWER SYMBOLS
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 RESTRICTIONVARIABLE and PRESSURE
COMPENSATED
PRESSURECOMPENSATION
PUMP: VARIABLE andPRESSURE COMPENSATED
ENERGY TRIANGLESHYDRAULIC PNEUMATIC
MEASUREMENT
PRESSURE TEMPERATURE FLOW
ROTATING SHAFTS
UNIDIRECTIONAL BIDIRECTIONAL
PUSH-PULL LEVER PEDALGENERAL MANUAL PUSH BUTTON SPRING
MANUAL CONTROL SYMBOLS
HYDRAULIC MOTORS
FIXEDDISPLACEMENT
VARIABLE DISPLACEMENTNON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
HYDRAULIC PUMPS
FLUID STORAGE RESERVOIRS
CROSSING AND JOINING LINES
VALVE ENVELOPES VALVE PORTS
BASIC COMPONENT SYMBOLS
FLUID CONDITIONERPUMP or MOTOR
FIXEDDISPLACEMENT
VARIABLE DISPLACEMENTNON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
VALVES
PILOT CONTROL SYMBOLSRELEASED PRESSURE
EXTERNAL RETURN INTERNAL RETURN
REMOTE SUPPLY PRESSURE
SIMPLIFIED COMPLETE INTERNALSUPPLY PRESSURE
ACCUMULATORS
SPRING LOADED GAS CHARGED
SOLENOIDor MANUAL
SOLENOIDand PILOT
SOLENOID and PILOT or MANUAL
COMBINATION CONTROLS
SOLENOID SERVO THERMAL DETENT
HYDRAULIC AND PNEUMATIC CYLINDERS
DOUBLE ACTINGSINGLE ACTING
BASICSYMBOL
SPRINGLOADED
CHECK VALVES
TWOPOSITION
INFINITEPOSITIONING
FLOW IN ONEDIRECTION
FLOW ALLOWED INEITHER DIRECTION
THREEPOSITION
CROSSFLOW
PARALLELFLOW
INTERNAL PASSAGEWAYS
NORMAL POSITION
A B
P T
A B
P TSHIFTED POSITION INFINITE POSITION
CONTROL VALVES
ATTACHMENT
MANUAL SHUTOFF
SHUTTLE PILOTCONTROLLED
ELECTRICAL SYMBOLSHydraulic Symbols (Electrical)
325-AG135 PK-14
Circuit IdentificationNumber
Wire Color Wire Gauge
Harness identification codeThis example indicateswire 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 ColorCircuit Number Identification
B A
Wire
Wire
(EXAMPLE VALVE)
Current Standard
Transducer(Fluid)
Transducer(Gas / Air)
G
Generator
Electrical WirePressure Switch
MElectric Motor
Pressure Switch (Adjustable)
Temperature Switch
PressureSymbol
TemperatureSymbol
LevelSymbol
FlowSymbol
Electrical Symbols (Electrical)
T
(1) ACCUMULATOR GPSTEERING248-6251
A
C
B
D
E
F
G
H
I
J
A
C
B
D
E
F
G
H
I
J
14 13 12 11 10 9 8 7 6 5 4 3 2 1
14 13 12 11 10 9 8 7 6 5 4 3 2 1
LINE PATTERNS
Drain / Return Lines
Component Group
Pilot / Load Sensing Pressure
Pressure Line
Attachment
Air Line
CALLOUTS
Taps (Pressure, Sampling, Sensor) by letterYY
HYDRAULIC CIRCUIT COLOR DESCRIPTIONSImplement & Steering Pump Output.Secondary Steering Pump Output.Steering Metering Pump Output and Cylinder Circuit.
Supply Line.Drain / Return Line.Ripper Cylinder Circuit.Signal LineBlade Tip Cylinder Circuit.
Hydraulic Fan Pump Output.
Steering (Circle Drive) Control Circuit.Side Shift Cylinder Circuit.Blade Lift Cylinder Circuits.Articulation Cylinder Circuit.Center Shift Cylinder Circuit.Wheel Lean Cylinder Circuit.
THIS SCHEMATIC IS FOR THE 16H Motor Grader
Components are shown installed on a fully operable machine with the key and engine off and transmission shifter in neutral.
Part #: 172-9362 CHG04
AA
CC
BB(21) TANK GP ANDFILTER 207-2410
(2) COVERLEFT
101-9346
(2) COVERLEFT
101-9346
(28) VALVE GPCONTROL (LEFT BLADE LIFT)
107-0558
(4) CYLINDER GP(BLADE LIFT)262-1904
(30) VALVE GPCONTROL
(SIDE SHIFT)107-0556
(20) SWIVEL GP
(7) CYLINDER GP(SIDE SHIFT)9T-3206
(5) CYLINDER GP(BLADE TIP)9T-8944
(25) VALVE GPCONTROL
(BLADE TIP)107-0554
(11) MANIFOLDLEFT
102-8385
METERING (STEERING)
(8) CYLINDER GPSTEERING (LH)165-2507
(39) CYLINDER GPRIPPER113-5264
(9) CYLINDER GPSTEERING (RH)165-2506
(12) MANIFOLDRIGHT
102-6238
(24) VALVE GPCONTROL
(ARTICULATION)107-0560
(26) VALVE GPCONTROL
(CENTER SHIFT)107-0562
(31) VALVE GPCONTROL
(WHEEL LEAN)107-0563
(29) VALVE GPCONTROL
(RIGHT BLADE LIFT)
107-0565
(6) CYLINDER GP(CENTER SHIFT)262-1905
(38) ACCUMULATOR GP(BLADE CUSHION)160-9413
(43) VALVE GPCONTROL(RIPPER)107-0559
(10) CYLINDER GP(WHEEL LEAN)
121-9244
(3) CYLINDER GPARTICULATION
9T-3050
(27) VALVE GPCONTROL (CIRCLE DRIVE)
107-0555(32) VALVE GP
MOUNTING(FAN SPEED SOLENOID)
193-5765
PUMP OUTPUTPRESSURE
(33) VALVE GPPUMP CONTROL168-2210
(34) VALVE GPPUMP CONTROL104-3122
(16) PUMP GPPISTON (HYDRAULIC FAN)
184-7448
(17) PUMP GPPISTON (IMPLEMENT AND STEERING)
177-7517
SIGNAL LINEPRESSURE
(42) VALVE GPCHECK(SECONDARYSTEERING)9T-6146
(23) VALVE GPCOMBINATION9T-5957
(41) VALVE GPCHECK (SECONDARY
STEERING)9T-1013
(40) PUMP GPELECTRIC DRIVE (SECONDARY STEERING)123-8915
(18) SENSOR GPPRESSURE(FAN DRIVE)
167-1709
(22) VALVE GPCHECK (FAN DRIVE)175-0447
(13) MOTOR GPGEAR
(HYDRAULIC FAN)224-7040
(2) COVERRIGHT101-9346
(37) VALVE GPUNIT TEST 4(RIGHT IMPLEMENTCONTROL VALVEMANIFOLD)104-8676
(45) VALVE GPRELIEF (SECONDARY
STEERING)9T-8071
ADAPTER
PUMPSUPPLY
PRESSURE
(14) MOTOR GPGEROTOR(CIRCLE DRIVE)9T-5977
DCBA
E KJHGF
BLADE LIFT SIDE SHIFT CIRCLE DRIVE BLADE TIP ARTICULATION CENTER SHIFT WHEEL LEAN BLADE LIFT
BLADE CUSHIONATTACHEMENT
BLADE CUSHION ATTACHMENT
HYDRAULIC FAN PUMP IMPLEMENT / STEERING PUMPSTEERING
RELIEF VALVE
PRESSURE & FLOWCOMPENSATOR VALVE
PRESSURE & FLOWCOMPENSATOR VALVE
SIGNALRESOLVER VALVE
STEERINGPRIORITY VALVE
SIGNALPURGE VALVE
SIGNAL RELIEF VALVE
IMPLEMENTRELIEF VALVE
SECONDARY STEERINGHYDRAULIC PUMP
RIPPER
EDCBA
(4) CYLINDER GP(BLADE LIFT)262-1904
(38) ACCUMULATOR GP(BLADE CUSHION)
160-9413
NOTE A: Used on 16H(1-215).NOTE B: Used on 16H(216-UP).NOTE C: Used on 16H(216-221).
(19) SWITCH ASPRESSURE230-5771
T1
BA
TPLS
(29) VALVE GPCONTROL
(RIGHT BLADE LIFT)107-0565
(47) MANIFOLD GPCONTROL (RH)
239-9894
BLADE LIFT
(4) CYLINDER GP(BLADE LIFT)262-1904
(4) CYLINDER GP(BLADE LIFT)262-1904
(28) VALVE GPCONTROL(LEFT BLADE LIFT)107-0558
BLADE LIFT
BLADE LIFT
T1
BA
TPLS
(46) MANIFOLD GPCONTROL (LH)239-9893
ACCUGRADE ATTACHMENTS
(35) VALVE GPSHUTTLE
(44) VALVE GPMOUNTING
(BLADE CUSHIONSOLENOID VALVE)
253-1320
(44) VALVE GPMOUNTING (BLADE
CUSHION SOLENOID)253-1320
(36) VALVE GPUNIT TEST 4
(LEFT IMPLEMENT CONTROL VALVE MANIFOLD)
104-8658
Note C131-0753
(15) PUMP GP
NOTE B 222-3771NOTE A 111-0491
260-6502
MACHINE COMPONENT LOCATIONS
FWD
24 25 26 27 28
29 30 31 43
36 37side dependent on machine arrangement.
The Following Control Valves may be located
or (RH) machineon either (LH)
CC
BB
AA
47
46
45
44
42
41
40
39
38
37
36
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
4
3
2
2
1
COMBINATION VALVE
Alternate Locationfor some models.
ALT
CC
CC
BB
BB
AA
42
34
34
23
23
1
COMBINATION VALVE - PORT AND FEATUREIDENTIFICATION
HYDRAULIC AND STEERING SYSTEM
ImplementDrain Lines
ImplementSupply Lines
ImplementSignal Lines
Steering PumpSupply
BB
35
23
HYDRAULIC FAN DRIVE
Signal LineLine for Pump to theFan Speed Solenoid
Vent Line to theCombination Valve
Line to the FanDrive Motor fromthe Makeup Valve
Line to the Makeup Valve from the Fan Drive Motor
Line to theMakeup valvefrom the Pump
Line to theHydraulic Tankfrom theMakeup Valve
Tank Return Line
3332
22
18
16
13
AA
FeaturesCover PageInformationComponent LocationPage 1 of 2Page 2 of 2
Tap LocationFluid Power SymbolsElectrical Symbols
SchematicMachine viewsMachine Component LocationsCombination ValveCombination Valve - Port And Feature IdentificationHydraulic And Steering SystemHydraulic Fan Drive
b_05_grid:
b_06_grid:
c_07_grid:
a_07_grid:
c_09_grid:
039_callout:
002_callout:
046_callout:
004_callout:
028_callout:
029_callout:
047_callout:
038_callout:
044_callout:
006_callout:
010_callout:
037_callout:
031_callout:
003_callout:
026_callout:
024_callout:
012_callout:
015_callout:
020_callout:
025_callout:
007_callout:
005_callout:
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030_callout:
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042_callout:
001_callout:
019_callout:
022_callout:
018_callout:
035_callout:
016_callout:
036_callout:
021_callout:
032_callout:
027_callout:
034_callout:
011_callout:
008_callout:
009_callout:
017_callout:
045_callout:
041_callout:
040_callout:
033_callout:
023_callout:
f_13_grid:
b_09_grid: f_05_grid: g_11_grid: f_04_grid: g_12_grid: g_08_grid: g_07_grid: f_03_grid: d_08_grid: d_06_grid: g_10_grid: e_07_grid: b_11_grid: d_01_grid: d_14_grid: h_14_grid: g_01_grid: j_02_grid: j_04_grid: 002_d_01_grid_v01:
003_f_05_grid_v01: 005_g_11_grid_v01: 006_f_04_grid_v01: 007_g_12_grid_v01: 008_g_08_grid_v01: 009_g_07_grid_v01: 010_f_03_grid_v01: 011_d_08_grid_v01: 012_d_06_grid_v01: 004_f_13_grid_v01:
014_g_10_grid_v01: 015_e_07_grid_v01: 017_b_09_grid_v01: e_01_grid: f_11_grid: c_13_grid: e_06_grid: e_09_grid: e_04_grid: d_10_grid: e_13_grid: e_02_grid: e_12_grid: e_03_grid: c_11_grid: c_10_grid: d_13_grid: h_04_grid: h_03_grid: 019_b_06_grid_v01: 020_f_11_grid_v01: 021_c_13_grid_v01: 024_e_06_grid_v01: 025_e_09_grid_v01: 026_e_04_grid_v01: 027_d_10_grid_v01: 028_e_13_grid_v01: 029_e_02_grid_v01: 030_e_12_grid_v01: 031_e_03_grid_v01: 036_d_13_grid_v01: 037_e_01_grid_v01: g_02_grid: g_14_grid: j_13_grid: a_06_grid: i_13_grid: f_02_grid: 038_g_02_grid_v01: 039_j_13_grid_v01: 040_a_06_grid_v01: 041_a_07_grid_v01: 044_f_02_grid_v01: 045_a_07_grid_v01: i_01_grid: i_06_grid: 046_i_06_grid_v01: 047_i_01_grid_v01: c_12_grid: b_08_grid: 049_c_09_grid_v01: 049_c_09_grid_v02:
048_c_12_grid_v01: 050_b_08_grid_v01: 050_b_08_grid_v02:
001_b_06_grid_v01: 001_b_06_grid_v02: 023_c_07_grid_v01: 023_c_07_grid_v02:
034_c_09_grid_v01: 034_c_09_grid_v02:
042_c_07_grid_v01: 042_c_07_grid_v02: 048_c_12_grid_v02: 032_c_11_grid_v01: 049_callout:
050_callout:
048_callout:
023_c_07_grid_v04: c_08_grid: 035_c_08_grid_v04: 049_c_09_grid_v04: 013_b_05_grid_v01: 022_b_05_grid_v01: 016_b_11_grid_v01: 033_c_10_grid_v01: 018_b_05_grid_v01: 018_b_05_grid_v05: 022_b_05_grid_v05: 013_b_05_grid_v05: 016_b_11_grid_v05: 033_c_10_grid_v05: 048_c_12_grid_v05: 032_c_11_grid_v05: restore_callouts:
0001_grid_spacer:
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