740 ARTIICULATED TRUCK POWER TRAIN
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Transcript of 740 ARTIICULATED TRUCK POWER TRAIN
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740
777744440000 AAAARRRRTTTTIIIICCCCUUUULLLLAAAATTTTEEEEDDDD TTTTRRRRUUUUCCCCKKKKPPPPOOOOWWWWEEEERRRR TTTTRRRRAAAAIIIINNNN
2001 Caterpillar Inc.
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CDOWNSHIFTSOLENOID
UPSHIFTSOLENOID
FILTERROTARY
ACTUATOR
SELECTORVALVEGROUP
ROTARYSELECTOR
SPOOL
NEUTRALIZERVALVE
PRIORITYREDUCTION
VALVE
LUBERELIEF VALVE
RELIEFVALVE
A
B
D
E
F
G
H
PUMPPRESSURE
DOWNSHIFTPRESSURE
PILOT OILPRESSURE
LUBEPRESSURE
740 TRANSMISSIONHYDRAULIC SYSTEM
NEUTRALUPSHIFT
PRESSURE
ON
PRESSURE CONTROLGROUP
T/C LOCKUPSOLENOID
TORQUE CONVERTERSUMP
TRANSMISSIONPUMP
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CHARGEPUMP
MAGNETICSCREEN
SOLENOIDVALVE
PRIORITYVALVE
RELIEFVALVE
INTERAXLEDIFFERENTIAL
TRANSFERGEAR
AXLE AXLE AXLE
OUTPUT TRANSFER GEAR HYDRAULIC CIRCUITDIFFERENTIAL LOCKS RELEASED
SOLENOIDVALVE
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CHARGEPUMP
MAGNETICSCREEN
SOLENOIDVALVE
PRIORITYVALVE
RELIEFVALVE
INTERAXLEDIFFERENTIAL
TRANSFERGEAR
AXLE AXLE AXLE
OUTPUT TRANSFER GEAR HYDRAULIC CIRCUITINTERAXLE LOCK ENGAGED
SOLENOIDVALVE
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CHARGEPUMP
MAGNETICSCREEN
SOLENOIDVALVE
PRIORITYVALVE
RELIEFVALVE
INTERAXLEDIFFERENTIAL
TRANSFERGEAR
AXLE AXLE AXLE
OUTPUT TRANSFER GEAR HYDRAULIC CIRCUITINTERAXLE AND DIFFERENTIAL LOCKS ENGAGED
SOLENOIDVALVE
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CDOWNSHIFTSOLENOID
UPSHIFTSOLENOID
TORQUE CONVERTERSUMP
TRANSMISSIONPUMP
FILTERROTARY
ACTUATOR
SELECTORVALVEGROUP
ROTARYSELECTOR
SPOOL
NEUTRALIZERVALVE
PRIORITYREDUCTION
VALVE
LUBERELIEF VALVE
RELIEFVALVE
A
B
D
E
F
G
H
PUMPPRESSURE
DOWNSHIFTPRESSURE
PILOT OILPRESSURE
LUBEPRESSURE
740 TRANSMISSIONHYDRAULIC SYSTEM
NEUTRALUPSHIFT
PRESSURE
ON
PRESSURE CONTROLGROUP
T/C LOCKUPSOLENOID
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JI
H
GF
E
D
C
B
A
10 9 8 7 6 4 3 2 1
GND VERIFYGEAR 5GEAR 4+ BATT
GEAR 3GEAR 2GEAR 1
GROUND
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10
TRANSMISSIONGEAR POSITION
SWITCH
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CA
B
D
E
F
G
H
TRANSMISSION PRESSURECONTROL VALVE
NEUTRAL
FROM SELECTORAND PRESSURE
CONTROL VALVE
MODULATIONREDUCTION VALVE
(STATION DFOR T/C LOCKUP CLUTCH)
MODULATIONREDUCTION VALVES
(STATIONS A, B, C, E, F, G AND HFOR TRANS. PLANETARY)
FROM SELECTOR AND
PRESSURE CONTROLVALVE
LOAD PISTONBODY
FROM SELECTOR ANDPRESSURE
CONTROL VALVEPUMP
PASSAGEPRESSURE
CONTROL VALVE
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LOAD PISTONORIFICE
TOTANK
TO TANK
PISTONPASSAGE SELECTOR
PISTONLOAD
PISTONMODULATION
REDUCTION VALVE
FROM SELECTIONAND PRESSURE
CONTROL VALVE
TRANSMISSION PLANETARYVALVE STATION
CLUTCH FILLING
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TRANSMISSION PLANETARYVALVE STATION
CLUTCH ENGAGED
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TO TRANSMISSIONLUBE
TRANSMISSION PLANETARYVALVE STATION
CLUTCH DECAY
DECAYORIFICE
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FROMT/C LOCKUPSOLENOID
TO TANK
FROMSELECTOR AND
PRESSURECONTROL VALVE
LOAD PISTONORIFICE
BALLCHECKVALVE
MODULATIONREDUCTION
VALVE
SELECTORPISTON
LOADPISTON
TORQUE CONVERTER LOCKUP VALVE STATION
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ROTARYSELECTOR
SPOOLNEUTRALIZERVALVE
PRIORITYREDUCTION
VALVE
LUBERELIEF VALVE
RELIEF VALVE
LUBRICATIONPRESSURE TAP
PILOT OILPRESSURE TAP
SCREEN
TO TRANSMISSIONPRESSURE
CONTROL VALVE
TO TRANSMISSIONPRESSURE
CONTROL VALVE
FROMTRANSMISSION
PUMP
740 TRANSMISSIONSELECTOR VALVE GROUP
NEUTRAL
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ON
DOWNSHIFTSOLENOID
UPSHIFTSOLENOID
FROM TRANSMISSIONOIL FILTER
ROTOR
ROTARYVANE
STATIONARYVANE
UPSHIFTVALVE
BALL
BALL
TOTANK
DOWNSHIFTVALVE
12
3
45 6 7
RN
TRANSMISSION ROTARY ACTUATOR