D 9 R T R A C K - T Y P E T R A C TO R S
©2000 Caterpillar Inc.
D9R ENGINES
• 3408 Engine with Mechanical Controls
• 3408E Engine with HEUI
D9R COMPONENT LOCATIONS
AMOCS
RADIATOR
QUICK-DROP
VALVE
STEERING
TORQUE
PUMP IMPLEMENT
DIVIDER
PUMP
PTO PUMP IMPLEMENT PUMP
(3-SECTION) CONTROL
T/C SCAVANGE
PUMP VALVE
HYDRAULIC STACK
PTO PUMP
MOTOR (4-SECTION)
DIFFERENTIAL CONTROL VALVE
STEER STACK
PLANETARIES TRANSMISSION
FINAL DRIVES
SERVICE BRAKES CLUTCH AND BRAKE PACKS
DIFFERENTIAL STEER SYSTEM
CLUTCH AND BRAKE SYSTEM
TORQUE DIVIDER
ROLLERS
ENGINE FLYWHEEL HOUSING
INLET
PASSAGE
PLANET SPRINGS
GEARS
CAM
SUN GEAR FREEWHEEL
STATOR
OUTPUT
SHAFT
STATOR
PLANET
CARRIER CARRIER
RING OUTLET
GEAR PASSAGE
TURBINE IMPELLER
POWER SHIFT TRANSMISSION
RING RING GEARS
GEARS
INPUT SUN
GEARS INPUT SHAFT
OUTPUT SHAFT
PLANETARY OUTPUT
CARRIER SUN GEARS
1 2 3 4 5
POWER TRAIN HYDRAULIC SYSTEM
STEERING CLUTCH AND BRAKE TORQUE
TORQUE CONVERTER
CONVERTER
OUTLET RELIEF VALVE
BREATHER
TRANSMISSION
CONTROL VALVE 5 4 CHECK VALVE
TC CASE
SUMP
COOLER
P3
BYPASS
OIL
MANIFOLD COOLER
PRIORITY
VALVE 2 1 P2
3
P1
LUBE
STEERING CLUTCH AND BRAKE VALVE
1 2 3 4
TORQUE
TRANSMISSION CONVERTER
PUMP FILTER
TRANSMISSION
TRANSMISSION FILTER CASE SUMP
MAIN FRAME
CASE SUMP
STEERING CLUTCH AND BRAKE
TRANSMISSION CONTROL VALVE
NEUTRAL
MODULATING
RELIEF VALVE
5 4
SPEED
N 1 2 3
SELECTOR
SPOOL
LOAD PISTON
LOAD PISTON
ORIFICE
P3
DIFFERENTIAL
VALVE
DIRECTIONAL R F
SELECTOR P2
SPOOL P1
2 1
3
RATIO VALVE
STEERING CLUTCH AND BRAKE
TRANSMISSION CONTROL VALVE
FIRST FORWARD
5 4
N 1 2 3
P3
R F
P2
P1
2 1
3
STEERING AND BRAKE VALVE
CHECK VALVE RIGHT STEERING SHAFT
SERVICE BRAKE
PEDAL SHAFT
RIGHT STEERING TO RIGHT
CLUTCH RIGHT STEERING
CLUTCH SPOOL
CLUTCH PLUNGER
RIGHT BRAKE
SPOOL
RIGHT BRAKE
TO RIGHT PLUNGER
BRAKE
TO LEFT
BRAKE LEFT BRAKE
PLUNGER
LEFT BRAKE
SPOOL
FROM LEFT STEERING
TO LEFT
PUMP CLUTCH PLUNGER
CLUTCH
LEFT STEERING
CLUTCH SPOOL REACTION PUMP INLET OUTLET LEFT STEERING SHAFT
CHAMBER CHAMBER CHAMBER
STEERING AND BRAKE VALVE
NO LEVER MOVEMENT
TO RIGHT
TO RIGHT CLUTCH
BRAKE
TO LEFT
FROM
BRAKE
PUMP
TO LEFT
CLUTCH
STEERING AND BRAKE VALVE
GRADUAL RIGHT TURN
TO RIGHT
TO RIGHT CLUTCH
BRAKE
TO LEFT
FROM
BRAKE
PUMP
TO LEFT
CLUTCH
STEERING AND BRAKE VALVE
SHARP RIGHT TURN
TO RIGHT
TO RIGHT CLUTCH
BRAKE
TO LEFT
FROM
BRAKE
PUMP
TO LEFT
CLUTCH
STEERING AND BRAKE VALVE
BRAKES ENGAGED
TO RIGHT
TO RIGHT CLUTCH
BRAKE
TO LEFT
FROM
BRAKE
PUMP
TO LEFT
CLUTCH
POWER TRAIN HYDRAULIC SYSTEM
DIFFERENTIAL STEER
TORQUE
TORQUE CONVERTER
CONVERTER OUTLET RELIEF
TRANSMISSION VALVE
CONTROL VALVE 5 4
TORQUE
CONVERTER
CASE SUMP
COOLER
P3
BYPASS
OIL
COOLER
PRIORITY PARKING
VALVE BRAKE
2 1 P2
P1 3 SPOOL
SERVICE
BRAKE
LUBE
SPOOL
MANIFOLD
TRANSMISSION
PUMP
TORQUE
CONVERTER
SCAVENGE
PUMP
TRANSMISSION TORQUE
FILTER CONVERTER
FILTER
TRANSMISSION MAIN FRAME
CASE SUMP CASE SUMP
DIFFERENTIAL STEER
TRANSMISSION CONTROL VALVE
NEUTRAL
5 4
1 2 3
P3
R N F
2 1 P2
P1 3
SERVICE AND PARKING BRAKE CONTROL VALVE
FROM
TRANSMISSION
CHARGING PUMP PARKING
BRAKE
SPOOL
TO BRAKES
SERVICE BRAKE
SPOOL
PASSAGE A
SERVICE BRAKE
PLUNGER
D9R STEERING AND IMPLEMENT HYDRAULIC SYSTEM
STEERING
PUMP STEERING
STEERING
CHARGE PILOT
MOTOR
PUMP VALVE
STEERING SYSTEM
BYPASS AND
PRESSURE
CONTROL
GROUP
CHARGE COOLER
AND FILTER LOOP
TANK
RIPPER
CYLINDERS IMPLEMENT SYSTEM
IMPLEMENT
PUMP
INLET MANIFOLD
QUICK-DROP LIFT
BLADE LIFT
VALVE CYLINDERS
BLADE TILT
RIPPER LIFT
RIPPER TILT TILT
DUAL TILT
CYLINDERS
VALVE
END COVER
HYDRAULIC TRANSMISSION
MOTOR INPUT
INPUT TRANSFER
GEAR
DIFFERENTIAL
STEER
COMPONENTS
TO LEFT TO RIGHT
FINAL DRIVE FINAL DRIVE
DRIVE EQUALIZING
STEER PLANETARY PLANETARY
PLANETARY
THREE LEVELS OF WARNING
• CATEGORY 1
• CATEGORY 2
• CATEGORY 3
THREE WARNING CATEGORIES
• Category 1 - Alert Indicator Flashes
• Category 2 - Alert Indicator Flashes
- Action Lamp Flashes
• Category 3 - Alert Indicator Flashes
- Action Lamp Flashes
- Action Alarm Sounds
