Manual Completo d8r
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Transcript of Manual Completo d8r
DDDD8888RRRR TTTTRRRRAAAACCCCKKKK----TTTTYYYYPPPPEEEE TTTTRRRRAAAACCCCTTTTOOOORRRRSSSS
© 1998 Caterpillar Inc.
• Dual twist tiller with integratedspeed selector and parkingbrake
• Steering motor with internalflushing valve
• Crossover and makeup valvesreplace counterbalance valve
• Steering controlled by remotepilot valve
• Piston-type pump for steeringonly
D8N/D8R Two Pump
• Tiller control with separatespeed selector and parkingbrake
• Steering motor without internalflushing valve
• Counterbalance valve toprevent overspeeding
• Steering control valveintegrated with implementcontrol valve
• Piston-type pump for steeringand hydraulics
D8N One Pump
STEER SYSTEM COMPARISON
D8N One Pump D8N/D8R Two Pump
• Piston-type pump forsteering and implements
• Load sensing, pressurecompensated hydraulicswith steering priority
• Standard Caterpillarcylinders
• Individual quick-dropvalve for each lift cylinder
• Individual ripperfunction valves
• Piston-type pumpfor implements only
• Load sensing, pressurecompensated hydraulics
• Threaded gland liftand pin puller cylinders
• Single quick-drop valvesimilar to the D6R/D7R
• One control valve with pilot operated diverter for all ripper functions
HYDRAULIC SYSTEM COMPARISON
ADDITIONAL CHANGES
• Folded core radiator
• Two section transmissionpump
• 3406B DIT 212.5 kW (285 hp)
• Two low maintenance,high output batteries
• Fuel level dipstick
• Mechanical hourmeter
D8N One Pump D8N Two Pump D8R Two Pump
• Improved Multiple RowModule (IMRM) radiator
• Three section transmissionpump (added torqueconverter charging section)
• Improved operator's station
• 3406C DITA 212.5 kW (285 hp)
• Four heavy-duty,maintenance free batteries
• Fuel level gauge on dash• Electronic LCD hourmeter
• Advanced ModularCooling System (AMOCS)
• No Change
• No Change
• 3406C DITA 228 kW (305 hp)
• No Change
• No Change• No Change
• Seven ecology drains
• Torque rise @ 34% • Torque rise @ 25% • Torque rise @ 25% and emissions certified
• Four ecology drains
OPTIONAL EQUIPMENT
• Air Conditioning (R-134a)
• Fast fill fuel system
• Fast oil change systemfor engine and transmission
• Dual tilt cylinders on 8A angle dozerwith tilt blade
• 58 Winch
• Engine pre-lubrication system
D8R AIR INLET ANDEXHAUST SYSTEM
MUFFLER
TURBOCHARGER
AFTERCOOLER
PRECLEANER
CYLINDER
AIRCLEANER
COMPRESSOR WHEEL
TURBINE WHEEL
DUST EJECTOR LINE
EXHAUSTMANIFOLD
HEAD ANDVALVES
EXHAUSTSTACK
FILTER ELEMENT INDICATOR
BOOSTPORT
D8R FUEL SYSTEMINJECTOR
SECONDARYFILTER
PRIMINGPUMP
TRANSFERPUMP
PRIMARYFILTER
TANK
SUPPLY
RETURN
DRAINVALVESHUTOFF
VALVE
CONSTANTBLEED VALVE
FUELPUMP
D8R ADVANCED MODULAR COOLING SYSTEM
ENGINEOIL
COOLER
WATERPUMP
AIR VENT
BYPASS
SHUNTLINE
WATER PUMPOUTLET
EXPANSIONTANK
TEMPERATUREREGULATOR
AIRFLOW
AFTERCOOLER
D8R AMOCSRADIATOR
COOLANTMONITORING
D8R ENGINE LUBRICATION SYSTEM
FROMTURBOCHARGER
ENGINEOIL PAN
SUCTIONBELL
OIL PUMP
COOLERBYPASSVALVE
OIL COOLER
OIL FILTERBYPASS VALVEOIL
FILTER
TO TURBOCHARGER
CYLINDER BLOCKOIL MANIFOLD
RELIEF VALVE
TIMER/SOLENOID
FAST OILCHANGE FITTING
STARTERMOTOR
GEARPUMP
OIL FLOW TO FILTER
SUCTION LINE
FRONT OF MACHINE
PRE-LUBRICATION STARTING SYSTEMLEFT SIDE OF ENGINE
TIMER/SOLENOID
OIL PRESSURECUTOFF SWITCH
OIL FLOW TOFILTER
CHECK VALVE
FRONT OF MACHINE
PRE-LUBRICATION STARTING SYSTEMRIGHT SIDE OF ENGINE
BATTERIES
POS NEG POS NEG
FRAME ENGINE
ALTERNATORBREAKER
NEUTRAL-STARTSWITCH
STARTERRELAY
MAINRELAY
BUSBAR
307 OR
RD 00
RD 00
200 BK
BK 00RD 00
RD 00
101 RD
306 GN
308 YL
109 RD
109 RD
200 BK
200 BKSTARTERMOTOR/
PRELUBE
121 RD
POS NEG POS NEG
RD 00
DISCONNECTSWITCH
10 A
BACK-UPALARMSWITCH
321 BR
BACK-UPALARM
200 BK
304 WH
SIDE AND REAR FLOOD LAMPS/RADIO
10 A
ALT
+ R
FORWARD HORN FRONT DASH DOME
KEY START
KEY STARTSWITCH
R
CSB ST
OFFON
105 RD
10 A
10 A
112 PU
308 YL
109 RD
109 RD
101 RD105 RD
109 RD
307 OR
A447 PK
OIL PRESSURECUTOFF SWITCH
337 WH
101RD
GS
MOTOR
MTRBAT
15 A
10 A
10 A
15 A
15 A
OPERATOR MONITOR
GAUGES AND SERVICE METER
WIPER MOTORS
CIGAR LIGHTER
116 BR
116 BR
337 WH
200 BK
301 BU
PRE-LUBETIMER/
SOLENOID
D8R PRE-LUBRICATION SYSTEM
307 OR
BACK-UPALARM
ENGINE
TORQUECONVERTER
STEERINGPUMP
STEERINGMOTOR
FINAL DRIVE
D8N AND D8R TWO PUMP DIFFERENTIAL STEER SYSTEM
PILOTVALVE
D8N ONE PUMPDIFFERENTIAL STEER SYSTEM
IMPLEMENT ANDSTEERING PUMP
STEERINGVALVE
TRANSMISSIONPUMPS
IMPLEMENTPUMP
TRANSMISSIONPUMPS
IMPLEMENTCONTROLVALVES
TRANSMISSIONBRAKE AND DIFFERENTIAL
STEER MODULE
IMPLEMENTCONTROLVALVES
BRAKE AND PLANETARYDRIVE MODULE
LEFTFINAL DRIVE
RIGHT BRAKE LUBE
LEFT BRAKE LUBE
RIGHTFINAL DRIVE
TRANSMISSION CONTROL VALVE
RATIO VALVE
TRANSFER ANDBEVEL GEAR
PARKING / SERVICEBRAKE VALVE
REGULATINGRELIEF VALVE
MAKEUP ANDPRIORITY VALVE
VENT
OIL COOLER
3406C ENGINE
FLYWHEEL HOUSING
TORQUE CONVERTERCONVERTER
OUTLETRELIEF
IMPLEMENT PUMP
2 1
1 - TRANSMISSION CHARGING2 - CONVERTER CHARGING3 - SCAVENGE
3
FILTER
FILTER BYPASS
D8R POWER TRAIN
P1
P2
P3
LUBE
DIFFERENTIALSTEER PUMP
DIFFERENTIALSTEER MOTOR
SUN GEAR
ROTATINGHOUSING
IMPELLER
TURBINE
OUTLETPASSAGE
OUTPUT SHAFT
STATOR
PLANET CARRIER
PLANET GEARS
ENGINE FLYWHEEL
INLETPASSAGE
RING GEAR
TORQUE DIVIDER
POWER SHIFT TRANSMISSION
INPUT SHAFT
OUTPUT SHAFT
OUTPUTSUN GEARS
RING GEARS
INPUT SUNGEARS
PLANETARYCARRIER
RINGGEARS
1 2 3 4 5
2 13
451 2 3
R N F
FILTER
PUMP
TRANSMISSION CONTROLVALVE
COOLER
TC OUTLETRELIEFVALVE
TORQUECONVERTER
PUMPDRIVE
D8R POWER TRAIN HYDRAULIC SYSTEM
P2
P3
P1RIGHT BRAKE LUBE
LEFT BRAKE LUBE
TRANSMISSION LUBE
SERVICE BRAKESWITH SHUTTLE VALVES
TRANSMISSIONMAINSUMP
TRANSMISSIONSUMP
BRAKEVALVE
MAKEUP ANDPRIORITY VALVE
MAINSUMP
R N F
2 13
451 2 3
D8R TRANSMISSION CONTROL VALVENEUTRAL
P3
P1
P2
BLOCKEDPASSAGE
A
B
C
DIRECTIONALSPOOL
SPEEDSELECTOR
SPOOL
MODULATIONRELIEFVALVE
RATIOVALVE
LOADPISTON
PRESSUREDIFFERENTIAL
VALVE
SCREENEDORIFICE
R N F
13
451 2 3
D8R TRANSMISSION CONTROL VALVEFIRST FORWARD
P3
P1
P22
A
B
C
DIRECTIONALSPOOL
SPEEDSELECTOR
SPOOL
MODULATIONRELIEFVALVE
RATIOVALVE
LOADPISTON
PRESSUREDIFFERENTIAL
VALVE
SCREENEDORIFICE
R N F
2 13
451 2 3
D8R TRANSMISSION CONTROL VALVESTART IN GEAR
P3
P1
P2
VENT PASSAGE
A
B
C
DIRECTIONALSPOOL
SPEEDSELECTOR
SPOOL
MODULATIONRELIEFVALVE
RATIOVALVE
LOADPISTON
PRESSUREDIFFERENTIAL
VALVE
SCREENEDORIFICE
RIGHTBRAKE LUBE
LEFTBRAKE LUBE SERVICE BRAKES
WITHSHUTTLE VALVES
MAIN SUMP
BRAKE VALVE
MAKEUP ANDPRIORITY VALVE
FROM CONVERTERCHARGING PUMP
REGULATING RELIEF VALVE
CHECK VALVE
TO TORQUE CONVERTER
TO TRANSMISSIONCONTROL VALVE
FROM TRANSMISSIONCHARGING PUMP
SERVICE BRAKE PLUNGER
SERVICE BRAKE SPOOL
PARKING BRAKE SPOOL
PRIORITY VALVE
BRAKE SUPPLYPASSAGE
PRIORITY VALVE PRESSURE
BRAKE CONTROL VALVE GROUP
STEERING PINION
SPROCKETSEGMENTS
INNERPLANETARY
GEARSOUTERPLANETARY
GEARS INNERSUN
GEAR
OUTERSUN GEAR
OUTERCARRIER
RINGGEAR
INNERCARRIER
HUB DUO-CONESEALS
OUTERAXLE SHAFT
BRAKEHOUSING
HUB
BELVILLE SPRING
DISCSAND PLATES
CHAMBER
PISTON
SPOOL
RING GEAR
CARRIER
PLANET GEARS
SUN GEARS
BEVEL GEAR
RING GEAR
HOUSING
CARRIER
CENTER AXLE SHAFT
FINAL DRIVE, BRAKE GROUP, ANDSTEERING DIFFERENTIAL AND PLANETARY
TOSTEERING
PINION
BRAKE RELEASED
SHUTTLESPOOL
BRAKE ENGAGED
SHUTTLESPOOL
PISTON
BRAKE SHUTTLE SPOOL
TOSTEERING
PINION
TO RIGHTFINAL DRIVE
EQUALIZINGPLANETARY
DRIVEPLANETARY
STEERPLANETARY
TO LEFTFINAL DRIVE
HYDRAULICMOTOR INPUT
TRANSMISSIONINPUT
DIFFERENTIAL STEER COMPONENTS
TO RIGHTFINAL DRIVE
TO LEFTFINAL DRIVE
DIFFERENTIAL STEER COMPONENTSSTRAIGHT LINE OPERATION
EQUALIZINGPLANETARY
DRIVEPLANETARY
STEERPLANETARY
HYDRAULICMOTOR INPUT
TRANSMISSIONINPUT
TO RIGHTFINAL DRIVE
TO LEFTFINAL DRIVE
EQUALIZINGPLANETARY
DRIVEPLANETARY
STEERPLANETARY
HYDRAULICMOTOR INPUT TRANSMISSION
INPUT
DIFFERENTIAL STEER COMPONENTSLEFT TURN - FORWARD
STEERING COMPARISON - ONE PUMP vs TWO PUMPSFIRST SPEED FORWARD
ONE PUMP WITH IMPLEMENTS4.9 TO 6.0 M (16 TO 20 FT)*
ONE PUMP WITHOUT IMPLEMENTS1.8 TO 2.3 M (5.9 TO 7.5 FT)*
TWO PUMPS - WITH ORWITHOUT IMPLEMENTS
1.2 TO 1.8 M (3.9 TO 5.9 FT)*
* INSIDE TURNING DIAMETER
TANK
STEERING CHARGECIRCUIT FILTER
IMPLEMENTPUMP
LIFTCYLINDERSQUICK-DROP
VALVE
IMPLEMENT SYSTEM
STEERINGPUMP
STEERINGPILOTVALVE
STEERINGMOTOR
RIPPERCYLINDERS
STEERING SYSTEM
D8R STEERING AND IMPLEMENT HYDRAULIC SYSTEM
TILTCYLINDER/S
CHARGEPUMP
BYPASS ANDPRESSURECONTROL
GROUP
RIPPERDIVERTER
VALVE
INLET MANIFOLD
RIPPER
LIFT
TILT
END COVER
FROM IMPLEMENT PUMP SUPPLY
TO RIPPERDIVERTER VALVE
D8RSTEERING SYSTEM
FROM IMPLEMENTPUMP CASE
PILOT VALVE
STEERING PUMPSTEERING MOTOR
BYPASSAND
PRESSURECONTROL
GROUP
STEERING CHARGECIRCUIT FILTER
COOLER
TO CASE DRAINFILTER IN TANK
RIGHT STEERLOOP PRESSURE
LEFT STEERLOOP PRESSURE
FROM BYPASS AND PRESSURE
CONTROL GROUP
D8R STEERING PILOT VALVENO TURN
TO PUMPCONTROL
SPOOL
TO PUMPCONTROL
SPOOL
TO BYPASSAND PRESSURE
CONTROL VALVE
FROM BYPASSAND PRESSURE
CONTROL VALVE
TO STEERMOTOR(RIGHT)
TO STEERMOTOR(LEFT)
CHARGEPUMP
STEERINGPUMP
CHARGEPRESSURE
RELIEFPRESSURE
COMPENSATORVALVE
CROSSOVERRELIEF VALVE
PUMP CONTROLSPOOL
PUMPCONTROL
PISTON
D8R STEERING PUMPNO TURN PUMP CONTROL PISTON PRESSURE
RIGHT LOOPLEFT LOOPRIGHT STEER
LOOP
LEFT STEERLOOP
TO STEERINGPILOT VALVE
(LEFT)
TO STEERINGPILOT VALVE
(RIGHT)
TOBYPASS
ANDPRESSURECONTROL
GROUP
TO BYPASSAND PRESSURE
CONTROL GROUP
FROM BYPASSAND PRESSURE
CONTROL GROUP LEFT STEERLOOP PRESSURE
RIGHT STEERLOOP PRESSURE
FROMSTEERPUMP
D8R STEER MOTORNO TURN
FLUSHINGVALVE
FROMSTEERPUMP
STEERING MOTORFLUSHING VALVE
PIN
RIGHT STEERLOOP PRESSURE
LEFT STEERLOOP PRESSURE
FROM BYPASSAND PRESSURE
CONTROL GROUP
D8R STEERING PILOT VALVE
FROM PUMPCONTROL
SPOOL
LEFT TURN
TO PUMPCONTROL
SPOOL
FROM STEERINGPILOT VALVE
(LEFT)
TO BYPASSAND PRESSURECONTROL VALVE
FROM BYPASSAND PRESSURECONTROL VALVE
TO STEERMOTOR(RIGHT)
TO STEERMOTOR(LEFT)
TO STEERINGPILOT VALVE
(RIGHT)
CHARGEPUMP
STEERINGPUMP
CHARGEPRESSURE
RELIEFPRESSURE
COMPENSATORVALVE
CROSSOVERRELIEF VALVE
PUMP CONTROLSPOOL
PUMPCONTROL
PISTON
D8R STEERING PUMPLEFT TURN
PUMP CONTROL PISTON PRESSURE
RIGHT LOOPLEFT LOOP
TOBYPASS
ANDPRESSURECONTROL
GROUP
STEERING PUMPEND VIEW RIGHT CROSSOVER
RELIEF VALVE
LEFT CROSSOVERRELIEF VALVE
CHARGE PRESSURERELIEF VALVE
PRESSURECOMPENSATOR VALVE
TOP
ORIFICE PLUG
TO BYPASSAND PRESSURE
CONTROL GROUP
FROM BYPASSAND PRESSURE
CONTROL GROUP LEFT STEERLOOP PRESSURE
RIGHT STEERLOOP PRESSURE
TOSTEERPUMP
FROMSTEERPUMP
D8R STEER MOTORLEFT TURN
FLUSHINGVALVE
STEERING PUMP (TOP VIEW)
PUMP CONTROLPISTON
RETAINER
SPOOLCONTROL
ARMTO PILOT VALVE
PUMP CONTROLSPOOL
STOP
COMPRESSIONSPRING
FEEDBACKLEVER
ROD
SPRING COLLAR
LEFT SIDE
RIGHT SIDE
RIGHTLEVERARM
LEFTLEVERARM
PIVOT POINT
FROMPILOT VALVE
LEFT TURN
STEERING PUMPSIDE VIEW
PUMP CONTROL VALVEPUMPCONTROL
PISTON
RIGHT CROSSOVERRELIEF VALVE
LEFTCROSSOVER
RELIEF VALVE
CHARGEPUMP
FEEDBACK LEVER
SWASHPLATE PISTONS
FROM STEER MOTOR
CASE DRAIN
TO STEER MOTORCASE DRAIN
CHARGEPUMP
DISCHARGEPRESSURE
CHARGEPUMP RELIEF
PRESSURE
CASE RETURNPRESSURE
FROM IMPLEMENT PUMP SUPPLY
TOFILTER
FROMCHARGE PUMP
FROMCOOLER
TO CHARGEPRESSURE RELIEF
VALVE
FROMFILTER
FROMSTEER PUMPCASE DRAIN
FROMIMPLEMENT PUMP
CASE DRAIN
TO COOLER, PILOT, ANDRIPPER DIVERTER VALVE
COLD OILBYPASS
COOLERBYPASS
CHARGECIRCUITMAKEUPVALVE
BYPASS AND PRESSURE CONTROL GROUP
COOLING ORIFICE
TO CASE DRAINFILTER IN TANK
TANK
STEERING CHARGECIRCUIT FILTER
IMPLEMENTPUMP
LIFTCYLINDERSQUICK-DROP
VALVE
IMPLEMENT SYSTEM
STEERINGPUMP
STEERINGPILOTVALVE
STEERINGMOTOR
RIPPERCYLINDERS
STEERING SYSTEM
D8R STEERING AND IMPLEMENT HYDRAULIC SYSTEM
TILTCYLINDER
CHARGEPUMP
BYPASS ANDPRESSURECONTROL
GROUP
RIPPERDIVERTER
VALVE
INLET MANIFOLD
RIPPER
LIFT
TILT
END COVER
PUMPDIVERTER
STEERINGCHARGE PRESSURE
BYPASS AND PRESSURECONTROL GROUP
QUICK-DROP
INLETMANIFOLD
RIPPER
LIFT
TILT
ENDCOVER
D8R IMPLEMENT HYDRAULIC SYSTEM
TO BYPASSAND PRESSURE
CONTROL VALVE
TO BYPASSAND PRESSURE
CONTROL VALVE
STEERINGCHARGE
PRESSURE
X
D8R IMPLEMENT HYDRAULIC SYSTEM
IMPLEMENT PUMP
QUICK-DROPVALVE
TANK
TILT
LIFT
RIPPER
INLETMANIFOLD
RIPPERDIVERTER
TO STEERINGCHARGE PUMP
TO TANK
TOACTUATOR PISTON
FROMOUTPUT PORT
PRESSURE COMPENSATOR(CUTOFF) SPRING
FLOW COMPENSATOR(MARGIN) SPRING
PRESSURE COMPENSATOR(CUTOFF) SPOOL
FLOW COMPENSATOR(MARGIN) SPOOL
ADJUSTMENT SCREWS
PRESSURE AND FLOW COMPENSATOR VALVE
PUMP OUTPUT
LARGE ACTUATOR
SMALL ACTUATORAND BIAS SPRING
SWASHPLATE
DRIVESHAFT
YOKE PAD
PRESSURECOMPENSATOR
(CUTOFF) SPOOL
FLOW COMPENSATOR( MARGIN) SPOOL
NO SIGNAL
PISTON ANDBARREL ASSEMBLY
PUMP AND COMPENSATOR OPERATIONENGINE OFF
PUMP OUTPUTNO SIGNAL
PUMP AND COMPENSATOR OPERATIONLOW PRESSURE STANDBY
PUMP OUTPUTSIGNAL
REDUCED PRESSURE
PUMP AND COMPENSATOR OPERATIONUPSTROKING
REDUCED PRESSURE
PUMP AND COMPENSATOR OPERATIONCONSTANT FLOW
PUMP OUTPUTSIGNAL
INCREASED PRESSURE
PUMP AND COMPENSATOR OPERATIONDESTROKING
PUMP OUTPUTSIGNAL
PUMP OUTPUTAT MAX.
PRESSURE
SIGNAL ATMAX. PRESSURE
PUMP AND COMPENSATOR OPERATIONHIGH PRESSURE STALL
D8R IMPLEMENT VALVESTO BYPASS AND
PRESSURE CONTROL GROUP
IMPLEMENT PUMPPRESSURE
IMPLEMENTPUMP SIGNAL
PRESSURE SIGNAL LINE TOIMPLEMENT PUMP
TOIMPLEMENT
PUMP SUPPLY
SYSTEMRELIEFVALVE
CHARGERELIEFVALVE
FLOWCONTROL
VALVE
FLOWCONTROL
VALVE
FLOWCONTROL
VALVE
TO RIPPERLIFT CYLINDERS
TO LIFTCYLINDERS
TO TILTCYLINDERS
.
RIPPER
LIFT
TILT
INLET MANIFOLD
ROD END HEAD END RETURNTO TANK
LOAD CHECKVALVE
PLUG
DOZER LIFT VALVEHOLD
TOCOMPENSATOR
VALVE
MAIN CONTROLSPOOL
RESOLVER
MAKEUPVALVE
FLOW CONTROL SPOOLFROM PUMP
FROMPREVIOUS
VALVE
ROD END HEAD ENDRETURNTO TANK
LOAD CHECKVALVE
PLUG
DOZER LIFT VALVERAISE
TOCOMPENSATOR
VALVE
MAIN CONTROLSPOOL
RESOLVER
MAKEUPVALVE
FLOW CONTROL SPOOLFROM PUMP
FROMPREVIOUS
VALVE
ROD END HEAD ENDRETURNTO TANK
LOAD CHECKVALVE
FLOW CONTROL SPOOL
PLUG
DOZER LIFT VALVELOWER
TOCOMPENSATOR
VALVE
MAIN CONTROLSPOOL
RESOLVER
MAKEUPVALVE
FROM PUMP
FROMPREVIOUS
VALVE
ROD END HEAD ENDRETURNTO TANK
LOAD CHECKVALVE
PLUG
DOZER TILT VALVETILT LEFT
MAIN CONTROLSPOOL
RESOLVER
PLUG
FLOW CONTROL SPOOLFROM PUMP
TOCOMPENSATOR
VALVE
ROD END HEAD ENDRETURNTO TANK
LOAD CHECKVALVE
PLUG
RIPPER CONTROL VALVEHOLD
TOCOMPENSATOR
VALVE
MAIN CONTROLSPOOL
RESOLVER
MAKEUPVALVE
FLOW CONTROL SPOOLFROM PUMP
FROMPREVIOUS
VALVE
D8R QUICK-DROP VALVE
QUICK-DROP VALVE
DOZER TILT
DOZER LIFT
TOIMPLEMENT
VALVE
TOIMPLEMENT
VALVE
TOIMPLEMENT
VALVE
D8R QUICK-DROP VALVE
TO ROD END
TO HEAD END
COVER
PLUNGER
PASSAGE TOSPOOL END
VALVE SPOOL
ORIFICE SLEEVE
TO RIGHT CYLINDERROD END
TO RIGHT CYLINDERHEAD END
TO LEFT CYLINDERROD END
TO LEFT CYLINDERHEAD END
TO/FROM LIFT CONTROL VALVE
PASSAGE TOPLUNGER END
QUICK-DROP VALVEHOLD
COVER
COVER
PLUNGER
PASSAGE TOSPOOL END
VALVE SPOOL
ORIFICE SLEEVE
TO RIGHT CYLINDERROD END
TO RIGHT CYLINDERHEAD END
TO LEFT CYLINDERROD END
TO LEFT CYLINDERHEAD END
TO/FROM LIFT CONTROL VALVE
QUICK-DROP VALVEDOZER RAISE
PASSAGE TOPLUNGER END
COVER
COVER
PLUNGER
PASSAGE TOSPOOL END
VALVE SPOOL
ORIFICE SLEEVE
FROM RIGHT CYLINDERROD END
TO RIGHT CYLINDERHEAD END
FROM LEFT CYLINDERROD END
TO LEFT CYLINDERHEAD END
TO/FROM LIFT CONTROL VALVE
QUICK-DROP VALVEDOZER LOWER
PASSAGE TOPLUNGER END
COVER
COVER
PLUNGER
PASSAGE TOSPOOL END
VALVE SPOOL
ORIFICE SLEEVE
FROM RIGHT CYLINDERROD END
TO RIGHT CYLINDERHEAD END
FROM LEFT CYLINDERROD END
TO LEFT CYLINDERHEAD END
TO/FROM LIFT CONTROL VALVE
QUICK-DROP VALVEQUICK-DROP
PASSAGE TOPLUNGER END
COVER
COVER
PLUNGER
PASSAGE TOSPOOL END
VALVE SPOOL
ORIFICE SLEEVE
FROM RIGHT CYLINDERROD END
TO RIGHT CYLINDERHEAD END
FROM LEFT CYLINDERROD END
TO LEFT CYLINDERHEAD END
TO/FROM LIFT CONTROL VALVE
QUICK-DROP VALVEDOZER LOWER
WITH DOWN PRESSURE
PASSAGE TOPLUNGER END
COVER
RIPPER TIP
RIPPER LIFT
FROM RIPPERCONTROL
VALVE
STEERINGCHARGE PRESSURE
D8R RIPPER DIVERTER VALVE
STEERINGCHARGE
PRESSUREPORT
RIPPER TIP IN( PORT E)
RIPPER TIP OUT(PORT F)
RIPPER LOWER(PORT C)
RIPPER RAISE(PORT D)
CHARGE PRESSURETEST PORT
C E D F
RIPPER SUPPLYLOWER/TIP IN
RIPPER SUPPLYRAISE/TIP OUT
RIPPER DIVERTER VALVE
BATTERIES
POS NEG POS NEG
FRAME ENGINEALTERNATOR
BREAKER
NEUTRAL-STARTSWITCH
STARTERRELAY
MAINRELAY BUS BAR
307 OR
RD 00
RD 00
200 BK
BK 00RD 00
RD 00
101 RD
306 GN
308 YL
109 RD
109 RD
200 BK
200 BK
STARTERMOTOR
121 RD
POS NEG POS NEG
RD 00
DISCONNECTSWITCH
10 A
BACK-UPALARM
BACK-UP ALARMSWITCH
321 BR
BACK-UP ALARM
200 BK
304 WH
15 A
10 A
10 A
15 A
15 A
SIDE AND REAR FLOOD LAMPS/RADIO
OPERATOR MONITOR
GAUGES AND SERVICE METER
WIPER MOTORS
CIGAR LIGHTER
10 A
ALT
+ R
FORWARD HORN FRONT DASH DOME
KEY START
KEY STARTSWITCH
R
CSB ST
OFFON
105 RD
10 A
10 A
GS
MOTOR
MTRBAT
112 PU
308 YL
109 RD
109 RD
101 RD105 RD
109 RD
D8R STARTING AND CHARGING SYSTEM
COOLANTTEMPERATURE
COOLANTFLOW
ENGINEOIL PRESSURE
HYDRAULICOIL TEMPERATURE
POWER TRAINOIL TEMPERATURE
POWER TRAINOIL FILTER
ALTERNATOR
HYDRAULICOIL FILTER
D8R EMS PANEL
CONDENSERCOIL
COMPRESSOR
EVAPORATORCOIL
ORIFICE TUBE/DRYER
ACCUMULATOR
EVAPORATOR BLOWER FAN
D8R ORIFICE TUBE SYSTEM
CONDENSER FAN
ORIFICE TUBE
SCREEN SCREENBODY
TUBE O-RINGS TABS
DRIVE PLATE
HUB
PULLEY ASSEMBLY
BEARINGCOIL ASSEMBLY
SHAFT
COMPRESSORCLUTCH
OIL BLEED LINE
VAPOR LINE
OUTLET
DIVERTER CAPINLET
ACCUMULATOR
BATTERY
CLUTCH
POINTOPENING
CAPILLARY TUBE
CAPILLARY BELLOWSASSEMBLYPIVOTING FRAME
TEMPERATUREADJUSTING SCREW
R-134a
THERMOSTATICSWITCH
COMPRESSORELECTRICAL CIRCUIT
BATTERIES
POS NEG POS NEG
FRAME ENGINEALTERNATOR
BREAKER
NEUTRAL-STARTSWITCH
STARTERRELAY
MAINRELAY
BUS BAR
307 OR
RD 00
RD 00
200 BK
BK 00RD 00
RD 00
101 RD
306 GN
308 YL
109 RD
200 BK
200 BK
STARTERMOTOR
D8R OPERATOR'S STATION AIR CONDITIONING SYSTEM
POS NEG POS NEG
RD 00
DISCONNECTSWITCH
304 WH
ALT
+ R
KEY START
KEY START SWITCH
R
CSB ST
OFFON
10 AGS
MOTOR
MTRBAT
112 PU
308 YL
109 RD
101 RD105 RD
109 RD
124 GNBLOWERMOTOR
BREAKER
BLOWER MOTORSWITCH
BLOWERMOTOR
BLOWERMOTOR
1 2 5 4 3
RESISTOR
517 BU
516 GN
515 GY515 GY
20 AT°
THERMOSTATSWITCHARC SUPPRESSOR
AIR CONDITIONER CLUTCH
REFRIGERANT SWITCH(NORMALLY OPEN BEFORE
REFRIGERANT CHARGE)
521 YL
513 OR 522 WH
BATTERIES
POS NEG POS NEG
FRAME ENGINEALTERNATOR
BREAKER
NEUTRAL-STARTSWITCH
STARTERRELAY
MAINRELAY
BUS BAR
307 OR
RD 00
RD 00
200 BK
BK 00RD 00
RD 00
101 RD
306 GN
308 YL
109 RD
200 BK
200 BK
STARTERMOTOR
D8R OPERATOR'S STATION HEATING SYSTEM
POS NEG POS NEG
RD 00
DISCONNECTSWITCH
304 WH
ALT
+ R
KEY START
KEY STARTSWITCH
R
CSB ST
OFFON
10 AGS
MOTOR
MTRBAT
112 PU
308 YL
109 RD
101 RD105 RD
109 RD
124 GN
BLOWERMOTOR
BREAKER
BLOWER MOTORSWITCH
BLOWERMOTOR
BLOWERMOTOR
1 2 5 4 3
RESISTOR
517 BU
516 GN
515 GY515 GY
20 A