Post on 01-Mar-2018
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1761759 - EC220D-EC350D B to D Step 1
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1761762 - Overview - Machine serial number
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1761765 - Overview - Improvement and Changes
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1761768 - Overview - Machine (EC250D-EC300D)
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1761777 - Change - Cab
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1761780 - Overview - Cab (Conventional type)
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1761783 - Overview - Engine
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1761786 - Change - Extra water separator
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1761789 - Change - Cooler arrangement
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1761792 - Overview - IECU
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1761795 - Overview - ECO mode
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1761798 - Overview - Work mode refine
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1761801 - Overview - Electronic control system
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1761804 - Overview - Electric system
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1761807 - Negative vs. Positive - Flow control
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1761810 - Overview - EH pump control
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1761813 - Overview - Grading & Lifting control
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1761815 - Conflux in F-mode
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1761818 - Change - Fuel level sensor position
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1761821 - Change - Overload warning system
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1761824 - Boom float position with holding function
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1761827 - X1 & X3 slide switch - Proportional control
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1761830 - X1 electric pedal - Proportional control
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1761833 - Change - Electric pedals
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1761836 - Overview - Joystick & pedal
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1761838 - Overview - Aircon system
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1761841 - Change - Servo system
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1761844 - Negative vs. Positive - Main pump
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1761846 - Negative vs. Positive - MCV
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1761848 - Change - MCV for X1 pressure control
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1761854 - Overview - Cooling system
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1761857 - Other changes
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Ch ll th t t t t f ECO d
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1761860 - Choose all the correct statements for ECO mode.
ECO mode can be activated in F-mode.
ECO mode cannot be activated in H-mode to give powerfulperformance.
In ECO mode, the F-mode power boost is not available forbetter fuel efficiency.
ECO mode is selectable by switching on or off on the keypad.
ECO mode is used on EC220D-EC350D.
ECO mode can be activated in all modes.
Choose all the correct statements for ECO mode.
Choose all the correct statements for ECO mode.
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Which statement is true?
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1761862 - Which statement is true?
There are 2 flow sensing valves on the MCV.
There are 1 power shift valve on the main pump.
In G4mode, the travel 2nd speed is not available.
There are the proportional PWM valves for the boom upconflux and the straight travel control.
In F-mode, Boom up conflux is cut off.
Which statement is true?
Which statement is true?
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Which statement is true?
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1761864 - Which statement is true?
The hydraulic pedal can be used for X1 system.
The batteries are located in front of the radiator onEC350D
The cooler arrangement is CAC-Oil cooler-Radiator on D6E.
There are the conflux cut-off solenoid valves for theoperations, Arm In, Arm Out and Boom Up.
The fan clutch can be used on EC250D-EC350D.
Which statement is true?
Which statement is true?
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Select correct match of engine with machine?
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1761866 - Select correct match of engine with machine?
EC250D ( D6 )
EC350D ( D8 )
EC220D ( D4 )
EC300D ( D8 )
Select correct match of engine with machine?
Select correct match of engine with machine?
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1761868 - Engine system
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Engine Model
Type
Displacement
4 cycle diesel
Turbocharger with wastegateCooled External EGR6 cylinder, Vertical in line
SILENCER
1 11
1761871 - Engine (D8K)
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1761874 - Fan clutch (D8K)
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SILENCER
Engine Model
Type
Displacement
4 cycle diesel
Turbocharger with wastegateInternal EGR6 cylinder, Vertical in line
ENGINE ECU
EMS2.2
1 11
1761877 - Engine (D7E)
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SILENCER
Engine Model
Type
Displacement
4 cycle diesel
Turbocharger with wastegateInternal EGR
6 cylinder, Vertical in line
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1761880 - Engine (D6E)
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1761883 - Preheating control
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1761889 - Engine protection function (D8K)
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1761892 - Engine protection function (D4E/D6E/D7E)
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1761895 - Engine protection function (additional)
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Choose all the components which the D8K engine has.
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1761898 - Choose all the components which the D8K engine has.
E-EGR actuator (MO2505)
CAC temperature sensor (SE2512)
Fan clutch (PWM2602/SE2604)
I-EGR solenoid valve (MA2504)
Choose all the components which the D8K engine has.
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1761903 - Start circuit
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(EC220D)
1761906 - Start circuit components location
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1761909 - Key & main fuse
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1761915 - Distribution box
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1761918 - Distribution box circuit
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(EC220D)
1761924 - Electronic control system components
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1761927 - VECU
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1
1761930 - VECU input & output
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1761942 - Sensors (IECU)
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1761948 - Slide switch type joystick
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1761954 - Electric pedal (Double acting)
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1761960 - PWM valve (X1 flow control)
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1761969 - Electrical system - Functions
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1761972 - Engine speed & work mode control
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1761981 - EH pump control (Flow demand P1)
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1761984 - EH pump control (Flow demand P2)
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1761987 - EH pump control (Flow demand - Travel straight)
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1761990 - EH pump control (Neutral compensation)
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1761993 - EH pump control (Torque compensation)
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1761999 - EH pump control (Error case)
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04:54
1800
1762002 - ECO mode
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1762004 - ECO mode (Swing flow limit)
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1762013 - ECO mode (Flexible Pi-Q curve)
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1
1762016 - Limp Home Control
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1762019 - Manual mode
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1
1762022 - Safe start & stop
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1762025 - Starter lock
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1
1762031 - Automatic engine shut-down
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1
1762034 - Torque reduction at high altitude
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1
1762040 - Conflux cut-off
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1
1762047 - Cooling system (Fan clutch)
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1
1762050 - Cooling system (Direct fan & Hydraulic fan)
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1
1762053 - Cooling system (Tropical option)
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1
1762059 - Overload warning
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1
1762065 - X3 control (2-switch)
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1
1762077 - X1 control (Proportional switch & Electric pedal - Double acting)
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1762095 - ECU communication failure
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The hydraulic oil temperature is connected to the V-ECU.
The work mode switch is connected to the E-ECU.
V-ECU gives the control current to the fan clutch forthe fan speed control (EC350D)
Choose all the correct statements.
Choose all the correct statements.
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1762101 - Choose all the correct statements.
the fan speed control (EC350D).
The fuel level sensor is connected to the E-ECU.
The ECO mode is one of the sub system of the engine system.
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1100 rpm
900 rpm
How high is the rpm right after pushing down the control lockout lever?
How high is the rpm right after pushing down the control lockout lever?
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1762105 - How high is the rpm right after pushing down the control lock
1000 rpm
800 rpm
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The flow rate for Boom Up is reduced as Arm In pilot pressureincreases.
The Boom 2 spool can be used for Boom Up and X1 at thesame time.
Which statement is true?
Which statement is true?
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1762111 - Which statement is true?
Normally P2 pump supplies oil for X1 operation.
The Arm 2 spool can be used for X1 operation.
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1762116 - Overview - Swing drive unit
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1762118 - Swing drive unit (EC250D-EC300D)
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1762121 - Swing drive unit external view (EC250D-EC300D)
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1762124 - Swing motor sectional view (EC250D-EC300D)
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1762127 - Swing gear box sectional view (EC250D-EC300D)
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1762130 - Power transmission - Swing (EC350D)
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1762133 - Swing drive unit (EC350D)
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1762136 - Swing drive unit external view (EC350D)
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1762139 - Swing motor sectional view (EC350D)
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1762142 - Swing gear box sectional view (EC350D)
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1761195 - Power transmission - Swing (EC220D)
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1761185 - Swing drive unit external view (EC220D)
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1761188 - Swing motor sectional view (EC220D)
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1
1761225 - Relief valve operation
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1
1761222 - Rebound damping valve operation
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1761261 - Power transmission - Travel (EC250D SN: 270026 ~ )
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1761254 - Track drive unit (EC250D)
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1761251 - Track drive unit external view (EC250D)
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1761576 - Power transmission - Travel (EC250D SN:270011 ~ 270025)
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1761573 - Track drive unit external view
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1761570 - Track motor sectional view
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1761242 - Power transmission - Travel (EC300D)
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1761239 - Track drive unit (EC300D)
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1761229 - Track drive unit external view (EC300D)
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1761232 - Track motor sectional view (EC300D)
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1761235 - Track gear box sectional view (EC300D)
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1761383 - Track drive unit (EC350D)
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1761392 - Track gear box sectional view (EC350D)
164
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1761278 - Power transmission - Travel (EC220D)
165
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1761271 - Track drive unit (EC220D)
166
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1761288 - Power transmission - Travel (Valve Operation)
170
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1
1761297 - Reducing valve operation (EC300D-EC350D)
171
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1
1761294 - Speed change (EC300D-EC350D)
174
1
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1
1761282 - Speed change (EC220D-EC250D)
175
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1761378 - Turning joint
176
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1761311 - Frame & track unit
177
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1
1761317 - Upper frame
178
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1761305 - Track link
181
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1761083 - Aircon system
183
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1761089 - Aircon system overview
184
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1761086 - Aircon circuit animation
186
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1761104 - AC compressor
187
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1761098 - Evaporator & expansion valve
189
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1761092 - Actuators
190
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1761095 - Sensors
191
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1761110 - Diesel heater layout
192
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1761520 - Hydraulic system (EC250D-EC300D)
193
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1761535 - Hydraulic circuit OPT 1
196
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1761541 - Hydraulic circuit OPT 3
198
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1761544 - Hydraulic circuit OPT 4
199
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1761547 - Hydraulic circuit OPT 1
202
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1761550 - Hydraulic circuit OPT 2
203
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1761556 - Hydraulic circuit OPT 4
205
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1761461 - Hydraulic circuit OPT Full
206
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EC250D/EC300D
1761523 - Hydraulic circuit animation (EC250D-EC300D)
207
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1761449 - Hydraulic components location (EC250D-EC300D)
208
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1761532 - Hydraulic pump (EC220D-EC350D)
209
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210/279
1761529 - Overview - Main pump
210
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211/279
1761443 - Pump external view
211
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212/279
1761446 - Pump sectional view
212
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213/279
1761440 - Regulator sectional view
213
1
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1
1761437 - Regulator animation
214
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215/279
1761434 - Gear pump
215
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216/279
1761526 - Main control valve (EC250D-EC300D)
216
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217/279
1761419 - Overview - Main control valve
217
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218/279
1761483 - MCV external view (Basic machine)
218
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219/279
1761480 - MCV external view (Pressure preset)
219
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220/279
1761477 - MCV animation (EC250D-EC300D)
220
333 bar 1
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1
1761431 - Main relief valve operation
221
1
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1
1761428 - Main relief valve pressure adjustment
222
1
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1
1761425 - Port relief valve operation
223
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224/279
1761562 - 2 stage port relief valve sectioanl view
224
- Low pressure
1
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1
1761559 - 2 stage port relief valve operation
225
1
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1
1761422 - 2 stage port relief valve adjustment
226
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227/279
1761565 - Option port relief valve for pressure preset (BK28)
227
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1761486 - Hydraulic operation (EC250D-EC300D)
228
1
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1
1761492 - Boom up operation
229
1
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1
1761489 - Boom down operation
230
1
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1
1761495 - Arm in operation
231
1
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1
1761498 - Arm out operation
232
1
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1
1761501 - Arm & Boom operation
233
1
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1
1761504 - Arm & Swing operation
234
1
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235/279
1
1761507 - Bucket curl operation
235
1
7/25/2019 A4 Print_Pictures_EC220D-EC350D B to D Step1_GB
236/279
1
1761510 - Bucket dump operation
236
1
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1
1761516 - Straight travel
237
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238/279
1761513 - X1 circuit animation (EC220D-EC350D)
238
The main pump circuit
The track motor circuit
The swing motor circuit
The main control valve circuit
On the hydraulic circuit, what component circuit of is different between EC250D and EC300D?
On the hydraulic circuit, what component circuit of is different between EC250D and EC300D?
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1761475 - On the hydraulic circuit, what component circuit of is different between EC250D and EC300D?239
In the Bucket spool, there is a regeneration check valve.
In the Boom 1 spool, there is a regeneration check valve.
In the Arm 1 spool, there is a regeneration check valve.
The 'bucket in' function can use partial conflux flow.
Choose all the correct statements for the hydraulic system.
Choose all the correct statements for the hydraulic system.
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1761473 - Choose all the correct statements for the hydraulic system.240
The straight travel signal
One of the swing signals
One of the 'Arm in' signals
One of the 'Boom up' signals
There are the Swing priority valve and the Arm regeneration valve. Choose the 2 signals that can switch both valves?
There are the Swing priority valve and the Arm regeneration valve. Choose the 2 signals that can switch both valves?
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1761471 - There are the Swing priority valve and the Arm regeneration valve. Choose the 2 signals that can switch both valves?241
One of the signals reduces hydraulic flow to the Bucket spool.
One of the signals reduces the hydraulic flow to Arm 2 spool.
One of the signals switches the Boom 2 spool.
One of the signals switches the Centre bypass valve on the main control valve (P2 side).
One of the signals restricts the Bucket return line.
One of the signals reduces hydraulic flow to the Swing spool.
One of the signals cuts off the signal to the Arm 2 spool.
One of the signals switches the Boom 1 spool.
Choose all the correct statements for the signals of the Boom up function.
Choose all the correct statements for the signals of the Boom up function.
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1761469 - Choose all the correct statements for the signals of the Boom up function.242
One of the signals opens the Arm holding valve.
One of the signals releases the swing brake.
One of the signals switches the Arm 2 spool.
One of the signals cuts off the signal to the Boom 2 spool.
One of the signals switches the Center bypass valve on the main control valve (P1 side).
One of the signals switches the Arm 1 spool.
One of the signals reduces hydraulic flow to the Swing spool.
Choose all the correct statements for the signals of the Arm in function (not in F-mode).
Choose all the correct statements for the signals of the Arm in function (not in F-mode).
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1761467 - Choose all the correct statements for the signals of the Arm in function (not in F-mode).243
7/25/2019 A4 Print_Pictures_EC220D-EC350D B to D Step1_GB
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1761115 - Hydraulic system (EC350D)
244
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245/279
1761121 - Hydraulic system overview (EC350D)
245
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246/279
1761130 - Hydraulic circuit STD
246
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247/279
1761143 - Hydraulic circuit OPT 1
247
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248/279
1761146 - Hydraulic circuit OPT 2
248
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249/279
1761149 - Hydraulic circuit OPT 3
249
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250/279
1761133 - Hydraulic circuit OPT Full
250
7/25/2019 A4 Print_Pictures_EC220D-EC350D B to D Step1_GB
251/279
EC350D
1761118 - Hydraulic circuit animation (EC350D)
251
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252/279
1761136 - Hydraulic components location (EC350D)
252
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253/279
1761127 - Main control valve (EC350D)
253
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254/279
1761124 - MCV external view (Basic machine)
254
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255/279
1761139 - MCV animation (EC350D)
255
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256/279
1761322 - Hydraulic system (EC220D)
256
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257/279
1761334 - Hydraulic system overview (EC220D)257
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258/279
1761328 - Hydraulic circuit STD
258
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259/279
1761362 - Hydraulic circuit OPT 1
259
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260/279
1761365 - Hydraulic circuit OPT 2
260
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261/279
1761368 - Hydraulic circuit OPT 3
261
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262/279
1761371 - Hydraulic circuit OPT 4
262
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263/279
1761374 - Hydraulic circuit OPT 5
263
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264/279
1761331 - Hydraulic circuit OPT Full
264
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265/279
EC220D
1761325 - Hydraulic circuit animation (EC220D)
265
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266/279
1761359 - Hydraulic components location (EC220D)
266
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267/279
1761346 - Main conrol valve (EC220D)
267
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268/279
1761343 - MCV external view (Basic machine)
268
7/25/2019 A4 Print_Pictures_EC220D-EC350D B to D Step1_GB
269/279
1761340 - MCV external view (Pressure preset)
269
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270/279
1761337 - MCV animation (EC220D)
270
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271/279
1761153 - Hydraulic system (Common)
271
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272/279
1761156 - Cylinder
272
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273/279
1
1761159 - Cushion operation
273
1
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274/279
1
1761162 - Joystick
274
7/25/2019 A4 Print_Pictures_EC220D-EC350D B to D Step1_GB
275/279
1
1761165 - Travel pedal
275
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276/279
1
1761168 - Boom & Arm
276
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277/279
1
1761171 - Option pedal
277
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278/279
1761175 - X3 control valve - On/Off
278
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279/279
1761178 - X3 control valve - Proportional
279