Trasmision Motoniveladora CAT 24H

ENGINE

COOLER

TRANSMISSION

ELECTRONICCONTROLMODULE

ENGINE SPEED SIGNAL TRANSMISSION OUTPUTSPEED SIGNAL

SIGNAL TO CONTROL VALVE

TRANSMISSIONCONTROL

VALVE

LOCKUPCLUTCHVALVE

TORQUECONVERTER

OUTLETRELIEF VALVE

PUMP PRIMEORIFICE

PUMP

FILTER

TC OUTPUTSPEEDSIGNAL

OUTPUTTRANSFER

GEARS

INPUTTRANSFER

GEARS

FLYWHEELHOUSING

LOCKUPCLUTCH

TORQUECONVERTER

Service TrainingMALAGA

24H MOTORGRADER

AdolfoAugust 1998

2. POWER TRAIN

1. Components Layout2. Operation3. Testing & Adjusting

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2-2P

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DIESEL ENGINE

TORQUECONVERTER

UPPERDRIVESHAFT

INPUTTRANSFER GEARS

TRANSMISSION

OUTPUTTRANSFER GEARS

LOWER DRIVESHAFT DIFFERENTIAL FINAL DRIVES

POWER TRAINCOMPONENT LOCATION

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FREEWHEELASSEMBLY

STATOR

IMPELLER

TURBINE

LOCKUP PISTON

TORQUE CONVERTERINLET OIL

TORQUE CONVERTERLOCKUP OIL PASSAGE

CONVERTER DRIVETORQUE CONVERTER

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TO TRANSFER GEARS

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FREEWHEELASSEMBLY

STATOR

IMPELLER

TURBINE

LOCKUPPISTON

TORQUECONVERTER

INLET OIL

TORQUECONVERTERLOCKUP OIL

PASSAGE

DIRECT DRIVETORQUE CONVERTER

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LYW

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TOTRANSFERGEARS

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LOCKUP CLUTCHSOLENOID VALVE

LOCKUP CLUTCHSOLENOID DE-ENERGIZED

TEST PORT

FROMPUMP

TO LOCKUPCLUTCH

BALLVALVESPOOL SPRINGORIFICE

LOCKUP CLUTCHSOLENOID ENERGIZED

SOLENOID PIN

TEST PORT

FROMPUMP

TO LOCKUPCLUTCH

BALLVALVESPOOL SPRINGORIFICE

SOLENOID PIN

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ENGINE

COOLER

TRANSMISSION

ELECTRONICCONTROLMODULE

ENGINE SPEED SIGNAL TRANSMISSION OUTPUTSPEED SIGNAL

SIGNAL TO CONTROL VALVE

TRANSMISSIONCONTROL

VALVE

LOCKUPCLUTCHVALVE

TORQUECONVERTER

OUTLETRELIEF VALVE

PUMP PRIMEORIFICE

PUMP

FILTER

TC OUTPUTSPEEDSIGNAL

OUTPUTTRANSFER

GEARS

INPUTTRANSFER

GEARS

FLYWHEELHOUSING

LOCKUPCLUTCH

TORQUECONVERTER

24H MOTOR GRADERPOWER TRAIN SCHEMATIC

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NO. 1CLUTCH

NO. 2CLUTCH

NO. 3CLUTCH

NO. 4CLUTCH

NO. 5CLUTCH

NO. 6CLUTCH

OUTPUTSHAFT

INPUTSHAFT

TransmissionSelection

Clutches Engagedin Transmission

Neutral 4

First Speed Forward 2 and 6

Second Speed Forward 3 and 6

Third Speed Forward 2 and 5

Fourth Speed Forward 3 and 5

Fifth Speed Forward 2 and 4

Sixth Speed Forward 3 and 4

First Speed Reverse 1 and 6

Second Speed Reverse 1 and 5

Third Speed Reverse 1 and 4

TRANSMISSIONCOMPONENTS

FIRST FORWARD

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TRANSMISSION HYDRAULIC CONTROLS

NO. 4CLUTCH

SOLENOID

NO. 2CLUTCH

SOLENOID

NO. 3CLUTCH

SOLENOID

NO. 1 CLUTCH SOLENOIDNO. 5 CLUTCH SOLENOID

NO. 6CLUTCH

SOLENOID

TRANSMISSION HYDRAULIC CONTROLS

LP PLUGP3 PRESSURE TAP

FROMPUMP

TO TORQUECONVERTER

TRANSMISSIONHYDRAULICCONTROLS

P1 PRESSURE TAP P2 PRESSURE TAP

MANIFOLDSELECTOR AND PRESSURE

CONTOL VALVE GROUP

HIGH FORWARDAND FIRST SEED

SELECTOR VALVEGROUP

PLATE

SPEED SELECTOR SPOOL

HIGH FORWARDDIRECTIONAL ANDSPEED SELECTORSPOOL (LOCATEDBEHIND COVERS)

SOLENOIDS

TRANSMISSION HYDRAULIC CONTROLS

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C 4

C 2C 3

C 6

C 1

C 5

PUMP

FILTER LOCKUP CLUTCHSOLENOID VALVE

LOCKUPCLUTCH

TC OUTLETRELIEF

COOLER

LUBRICATION

TORQUECONVERTER

C 3

C 6

C 1

C 4 C 5

C 2

P1

P2

P3

24H TRANSMISSION HYDRAULIC SYSTEMNEUTRAL

SPOOL FOR SPEEDS 3, 4, 5 AND 6

SPOOL FORSPEEDS 1 AND 2DIRECTION

SPEEDSPOOLS

LOCKUP CLUTCHANALOG SENSOR

CONVERTERINLET RATIO

VALVE

MODULATIONRELIEF VALVE

ORIFICE

PRESSUREDIFFERENTIAL

VALVE

LOADPISTON

FLOW CONTROLORIFICE

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24H TRANSMISSION HYDRAULIC SYSTEMFIRST SPEED FORWARD

C 4

C 2C 3

C 6

C 1

C 5

C 3

C 6

C 1

C 4 C 5

LOCKUP CLUTCHSOLENOID VALVE

LOCKUP CLUTCHANALOG SENSOR

C 2

CHAPTER : POWER TRAIN

24H MOTORGRADER

2-15Page:

DIFFERENTIAL

SIDE GEAR - A

PINIONS (4)

CROSS SHAFTFOR PINIONS CLUTCH PLATES

PISTON

CAVITITY

SIDE GEAR - B

DIFFERENTIAL LOCK OFFMACHINE TURNING

CHAPTER : POWER TRAIN

24H MOTORGRADER

2-16Page:

DIFFERENTIAL

SIDE GEAR - A

PINIONS (4)

CROSS SHAFTFOR PINIONS CLUTCH PLATES

PISTON

CAVITITY

SIDE GEAR - B

DIFFERENTIAL LOCK ON

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CHAPTER : POWER TRAIN

24H MOTORGRADER

2-18Page:

ELECTRIC SOLENOID VALVE

TO RESEVOIR TO CLUTCHSOLENOID

CONNECTOR

INLETPRESSURE TESTCHECK PORT

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FINAL AND TANDEM DRIVES

SHAFT

SUN GEAR

CARRIER DRIVE SPROCKETS

DRIVE CHAIN

DRIVE CHAIN

DRIVEN SPROCKET

DRIVEN SPROCKET

PLANETARY GEAR

RING GEARHOUSING

RING

HOUSING

THRUSTWASHERS

WHEEL SPINDLE

AXLE HOUSING

SEAL

SEAL

SHIMS