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CAT TH350B, TH355B, TH360B, TH460B, and TH560B Telehandler Hydraulic System

INTERACTIVE SCHEMATIC
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Tap Table
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EC-C3
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Hydraulic System
and TH560B Telehandler
TH350B, TH355B, TH460B,
TH350B:
SLD1-UP
TH355B:
JRK1-UP
TH360B:
SLE1-UP
TH460B:
SLF1-UP
TH560B:
SLG1-UP
©
2006 Caterpillar, All Rights Reserved
Printed in U.S.A.
RENR5191-03
January 2006
Page 1 of 2
COMPONENT LOCATION
Description
Part
Number
Machine
Location
Schematic
Location
Cylinder Gp - Coupler 216-2406 4 H-6
Cylinder Gp - Brake (Master) 217-6130 3 A-1
Filter Gp - Oil (Power Train) 191-1060 10 B-5
Strainer - (Tank Filter) 202-5350 14 A-8
Valve Gp - Check (Back Pressure) 225-1912 21 B-9
Valve Gp -
Load Control (Boom Raise Lock)
184-6471 29
G-4
Valve Gp - Control (Aux) 227-1207 23 D-6
Valve Gp - Control (Boom Raise, Lower) 227-1209 25 D-5
Valve Gp - Control (Quick Coupler Tilt) 227-1208 26 D-5
6 I-4
203-7756
208-1617
211-1322
5
F-5
233-6072
179-1893
237-4154
12
G-9
257-6254
262-5202
262-5203
13
B-9
15 A-8
Tank As - Hydraulic
(460/560)
248-4000
219-0538
Cylinder Gp - Telescoping
(360/460/560)
(360/460/560)
(355/360/460/560)
(360/460/560)
Pump Gp -
Piston (Main)
(460)
(560)
Pump Gp -
Metering
(Steering - HMU)
(460)
(560)
Cylinder Gp -
Stabilizer
(460/560)
Pump Gp -
Lower (Dead Engine Lower)
(Emergency Lower)
Valve Gp -
Check (Emergency Lower)
241-3159
241-3160
264-0616
270-4157
259-8723
263-9955
Cylinder Gp -
Tilt
(460)
(560)
Cylinder Gp -
Frame Leveling
(460/560)
9
11
8
G-4
Cylinder Gp -
Hydraulic (Compensating)
203-7847
207-5070
7
F-5
Cylinder Gp -
Boom (Raise)
(355/360)
(460)
(560)
253-3808
253-3933
253-4189
253-4258
2
G-7
H-10
20 H-9
H-2
204-7813
211-1327
Cooler & Mtg Gp -
Hydraulic Oil (Xmsn) (Option)
(20kW)
(12kW)
206-5502
194-0952
1
A-5
Valve Gp -
Control (Boom Extend, Retract)
227-1206 24
D-7
Valve Gp -
Check (Coupler Cylinder Check)
236-4441 22
H-6
Valve & Mtg Gp - Diverter (Dual Auxiliary) 222-4662 16 H-7
Valve As - (Tilt Cylinder Lock) (Cartridge) 188-3214 17 F-6
Valve Gp - Load Control (Frame Level) 265-0884 30 H-4
Valve Gp - Bank 4 (Implement) 242-7958 18 B-7
Valve Gp - Electronic Pilot 247-7829 28 B-4
Valve Gp -
Load Control
(Stabilizer Cylinder Lock)
204-6924 31
G-2
Valve Gp - Diverter (Single Auxiliary) 226-6494 27 H-7, I-5
Valve Gp - Check (Xmsn) 257-4830 19 B-6
(350/355/360)
(460/560)
(350/355/360)
(350/355/360)
(355/360)
(350/355)
(350/355/360)
(350/355/360)
(350/355/360)
(350)
Page 2 of 2
COMPONENT LOCATION
Valve Gp - Manifold (Inlet) 227-1203 33 D-8
Valve Gp - Manifold (Outlet) 227-1205 34 D-4
Valve Gp - Pilot (Anti Kick) 223-4153 35 G-5
(360/460/560)
(355/360/460/560)
Valve Gp -
Solenoid (Sequence)
(Emergency Lower)
270-3593 37 I-10
Valve Gp -
Stabilizer Control
265-0881 39
F-1
Valve Gp - Solendoid (Steer Mode Select) 210-7217 38 E-10
Valve Gp - Solenoid
(Frame Level Arctic) (Option)
262-1178 36
C-9
Valve Gp - Load Control (Tele Cylinder) 252-5652 32 F-7
40 A-6
XMSN Gp -
(Option)
(4spPsh)
206-4387(4spPsy)
206-4388
Description
Part
Number
Machine
Location
Schematic
Location
TAP LOCATION
Tap
Number
Description
Schematic
Location
AA Main Pump Pressure C-9
BB Load Sensor Pressure C-9
CC Implement Pilot Pressure C-3
DD SOS Oil Sample Port B-5
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 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
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 ACTINGSINGLE 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
ELECTRICAL SYMBOLS
Hydraulic Symbols (Electrical)
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)
T
HYDRAULIC CIRCUIT COLOR DESCRIPTIONS
Main Pump Output
Pilot Circuit
Scavenge Pump Output
Supply Line
Drain / Return Line
Load Sense Circuit
Steering Control Circuit
Telecontrol Circuit
Transmission Charge Pump Output
Auxiliary Control Circuit
Boom Control Circuit
Emergency Lower System
Frame Level Control Circuit
Quick Coupler Tilt Control Circuit
Right Stabilizer Control Circuit
Master Brake Cylinder Circuit
Left Stabilizer Control Circuit
THIS SCHEMATIC IS FOR THE TH350B, TH360B , TH460B & TH560B TELEHANDLER
Part #: 207-2708 CHG: 11 (350)
Part #: 207-2709 CHG: 12 (360/460/560)
Components are shown installed on a fully operable machine with the key and engine
off and transmission shifter in neutral.
LINE PATTERNS
Drain / Return Lines
Component Group
Pilot / Load Sensing Pressure
Pressure Line
Attachment
Air Line
CALLOUTS
Taps (Pressure, Sampling,Sensor) by letter
YY
A
B
C
D
E
F
G
H
I
A
B
C
D
E
F
G
H
I
10 9 8 7 6 5 4 3 2 1
10 9 8 7 6 5 4 3 2 1
TORQUE
CONV'T
R/V
10 Bar
LUBE
CLUTCH
PACKS/
SYNC'S
DIFF
LOCK
ON/OFF
REG
16 Bar
ECM
JOYSTICK
HANDLE
FILL
VENT LINE
CHARGE PUMP
SPEEDS AS
IMPL. PUMP
SCAVENGE PUMP
L R
LS
T P
C1 C2
C3
C4
STEER
TELE
TILT
A B
A B
P GAUGE
LS GAUGE
A B
A B
HMU
P
BRAKES
T BRAKES
P
LS
T
T
PIL
P PIL
P1 TK1
LF1
TF1S1
P PIL GAUGE
FRONT
REAR
PILOT
SHUT-OFF
(13) PUMP GP
PISTON (MAIN)
257-6254 (350/355/360)
262-5202 (460)
262-5203 (560)
(36) VALVE GP
SOLENOID
(FRAME LEVEL
ARCTIC) (OPTION)
262-1178
(21) VALVE GP
CHECK (BACK PRESSURE)
225-1912
BOOM
VALVE TRAVEL
BOOSTED BRAKE ACTUATION
A B
A B
AUX 2
AUX 1
A2
B2
A1
B1
A1
B1
B
A B A
(360/460/560 OPTION)
(15) TANK AS
HYDRAULIC
248-4000 (350/355/360)
219-0538 (460/560)
(14) STRAINER
TANK FILTER
202-5350
(18) VALVE GP
BANK 4
(IMPLEMENT)
242-7958
(19) VALVE GP
CHECK (XMSN)
257-4830
(10) FILTER GP
OIL (POWER
TRAIN)
191-1060
(29) VALVE GP
LOAD CONTROL
(BOOM RAISE LOCK)
184-6471
(35) VALVE GP
PILOT
(ANTI KICK)
223-4153
SOS
CC
BB
AA
DD
LF1
EMERGENCY LOWER
(OPTION)
AUX 1, AUX QC, & AUX 2
(OPTION)
(355/360/460/560)
AUX 1 & AUX QC
STABILIZER
(8) CYLINDER GP
STABILIZER
259-8723 (355/360)
263-9955 (460/560)
(39) VALVE GP
STABILIZER CONTROL
265-0881
(31) VALVE GP
LOAD CONTROL
(STABILIZER CYLINDER
LOCK - LEFT)
204-6924
(16) VALVE & MTG GP
DIVERTER (DUAL AUX)
222-4662
(37) VALVE GP
SOLENOID
(SEQUENCE)
(EMERGENCY LOWER)
270-3593 (360/460/560)
(11) PUMP GP
LOWER
(DEAD ENGINE LOWER)
(EMERGENCY LOWER)
264-0616 (360/460/560)
(20) VALVE GP
CHECK
(EMERGENCY LOWER)
270-4157 (360/460/560)
(22) VALVE GP
CHECK (COUPLER
CYLINDER CHECK)
236-4441
(30) VALVE GP
LOAD CONTROL
(FRAME LEVEL)
265-0884
(6) CYLINDER GP
FRAME LEVELING
204-7813 (350/355/360)
211-1327 (460/560)
(3) CYLINDER GP
BRAKE (MASTER)
217-6130
(12) PUMP GP
METERING
(STEERING - HMU)
233-6072 (350/355/360)
179-1893 (460)
237-4154 (560)
(38) VALVE GP
SOLENOID
(STEER MODE SELECT)
210-7217
(33) VALVE GP
MANIFOLD (INLET)
227-1203
(23) VALVE GP
CONTROL (AUX)
227-1207
(24) VALVE GP
CONTROL
(BOOM EXTEND, RETRACT)
227-1206
(25) VALVE GP
CONTROL
(BOOM RAISE,
LOWER)
227-1209
(26) VALVE GP
CONTROL
(QUICK COUPLER
TILT)
227-1208
(34) VALVE GP
MANIFOLD
(OUTLET)
227-1205
(28) VALVE GP
ELECTRONIC PILOT
247-7829
(1) COOLER & MTG GP
HYDRAULIC OIL
(XMSN) (OPTION)
206-5502 (12kW)
194-0952 (20kW)
(40) XMSN GP
(OPTION)
206-4387 (4spPsy)
206-4388 (4spPsh)
(9) CYLINDER GP
TELESCOPING
241-3159 (350/355)
241-3160 (360/460/560)
(32) VALVE GP
LOAD CONTROL
(TELE CYLINDER)
252-5652
(5) CYLINDER GP
TILT
203-7756 (350/355/360)
208-1617 (460)
211-1322 (560)
(17) VALVE AS
(TILT CYLINDER LOCK)
(CATRIDGE)
188-3214
(2) CYLINDER GP
BOOM (RAISE)
253-3808 (350)
253-3933 (355/360)
253-4189 (460)
253-4258 (560)
(7) CYLINDER GP
HYDRAULIC
(COMPENSATING)
203-7847 (350/355/360)
207-5070 (460/560)
FRAME LEVEL
LEFT RIGHT
SEE LOC
H-9
LA1
SEE LOC
I-10
B
SEE LOC
I-8 or I-6
A
SEE LOC
I-8 or I-6
LF1
SEE LOC
E-3
LA1
SEE LOC
E-3
S1
SEE LOC
I-10
TF1
SEE LOC
I-9
S1
SEE LOC
E-7
TF1
SEE LOC
E-7
B
SEE LOC
E-6
A
SEE LOC
E-6
B
SEE LOC
E-6
A
SEE LOC
E-6
LS
P
T
STEER
P
LS
STEER
(4) CYLINDER GP
COUPLER
216-2406
(27) VALVE GP
DIVERTER (SINGLE AUX)
226-6494
(27) VALVE GP
DIVERTER
(SINGLE AUX)
226-6494
STABILIZER CYLINDERS
The stabilizer cylinders are located on the stabilizers
at the fron t
of the machine. The head end of the
cylinder is attached to the stabilizer frame and the
rod end i s attached to the stabilizer leg.
The cylinders extend in order to lower the s tabilizers
and the cylinders retract in order to raise t he
stabilize
rs.
VALVE GP - BANK 4 (IMPLEMENT)
Valve Gp - Implement Asy 4-Bank (15),
Main Pump Pressure Port (AA),
Load Sensor Pressure Port (BB,
Implement Pilot Pressure Port (CC)
Inlet
Manifold
Outlet
Manifold
Inlet
Manifold
Outlet
Manifold
Boom
Tele
Auxiliary
Tilt
Location of
Implement Disable Sol.
BB
BB
AA
CC
28
18
VIEW ALL CALLOUTS
VALVE GP - STABILIZER CONTROL
(1) Flow control valve ( stabilizer)
(2) Control valve (left stabilizer)
(3) Control valve (right stabilizer)
The valve group (stabilizer) is installed in the center
of the stabilizer frame at the front of the machine.
The valve group (stabilizer) consists of the flow
control valve (stabilizer) (1), the control valve (left
stabilizer) (2) and the control valve (right stabiliz er)
(3).
The flow control valve (1) controls the flow of oil
into the stabilizer cyli nders and o ut of the stabilizer
cylinders.
Stabilizers are used in order to improve the stability
of the machine.

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