Caterpillar 988H Wheel Loader Parts Manual (Vol. I & Vol. II, Version April 2007)


Caterpillar 988H Wheel Loader, Vol. I & Vol. II, Parts Manual
BXY1-Up (Machine)
RHX1-Up (Engine)
DRT1-Up (Transmission)
SMA1900-Up (Transmission)
6AT1-Up (Torque Converter)
TCR1-Up (Torque Converter)

Type of machine: Backhoe Loader
Print No: SEBP3906-19, April 2007
Language and Format: English/PDF
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This Parts Manual contains detailed illustrations and official part numbers for your Caterpillar 988H Wheel Loader, Vol. I & Vol. II. Present manual contain the reference number or code of each parts, contain all the parts of the machine.

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Table of contents:
GENERAL INFORMATION
REPAIR ALTERNATIVES
SUPPLEMENTAL COOLANT ADDITIVES
MAINTENANCE PARTS
INDEX

MACHINE ARRANGEMENT
CHASSIS AR
COMMON AR
STEEL MILL AR

ENGINE ARRANGEMENT
ENGINE AR
ENGINE AR-COMPLETE
ENGINE AR-CORE
INSTALLATION AR-ENGINE

BASIC ENGINE
ACTUATOR GP-VALVE
ADAPTER GP-PUMP DRIVE
BASE GP-VALVE COVER & INJ HARN
BELT TENSIONER GP
CAMSHAFT GP
COVER GP-CYLINDER BLOCK
COVER GP-FRONT HOUSING
COVER GP-SOUND SUPPRESSION
COVER GP-VALVE MECHANISM
CRANKSHAFT GP
CYLINDER BLOCK AS
CYLINDER BLOCK GP
CYLINDER HEAD AS
CYLINDER HEAD GP
DAMPER GP
DRAIN GP-ENGINE OIL
DRIVE GP-ACCESSORY
DRIVE GP-PUMP
ENGINE BRAKE GP
FASTENER GP-FRONT HOUSING
FASTENER GP-VALVE MECHANISM
FLYWHEEL GP
GEAR GP-CAMSHAFT
GEAR GP-FRONT
HOUSING GP-FLYWHEEL
HOUSING GP-FRONT
LIFTING GP-ENGINE
MECHANISM GP-FUEL PUMP & VALVE
MOUNTING GP-ALTERNATOR & COMPR
PAN GP-OIL
PANEL GP-SOUND SUPPRESSION
PISTON & ROD GP
PLUG GP-CYLINDER BLOCK
PLUG GP-CYLINDER HEAD
PULLEY GP-CRANKSHAFT
ROCKER ARM GP
SUPPORT GP-ENGINE

LUBRICATION SYSTEM
EXTENSION GP-FUMES DISPOSAL
FASTENER GP-OIL PUMP MOUNTING
FILLER GP-ENGINE OIL
FILTER GP-ENGINE OIL
FUMES DISPOSAL GP
GAUGE GP-OIL LEVEL (DIPSTICK)
LINES GP-ENGINE OIL
LINES GP-TURBOCHARGER OIL
OIL CHANGE GP-HIGH SPEED
PUMP GP-ENGINE OIL

COOLING SYSTEM
COOLING AR
COOLING AR-HIGH AMBIENT TEMP
FAN & BAFFLE GP
FAN GP-SUCTION
FASTENER GP-WATER PUMP
LINES GP-WATER
PUMP GP-WATER
RADIATOR GP
VALVE GP-RADIATOR DRAIN

AIR INLET AND EXHAUST SYSTEM
AFTERCOOLER GP-AIR
AIR CLEANER GP
COVER GP-TURBOCHARGER
DUST EJECTOR GP
EXTENSION GP-EXHAUST
LINES GP-AIR
MANIFOLD GP-EXHAUST
MOUNTING GP-MUFFLER
MUFFLER GP
SHIELD GP-MANIFOLD
TURBOCHARGER GP

FUEL SYSTEM
ADAPTER GP-FAST FILL FUEL
FILTER GP-FUEL
FILTER GP-WATER SEP & FUEL
FUEL AR-FAST FILL
LINES GP-FUEL
LINES GP-FUEL HEATER
PLUG GP-FUEL FILTER BASE
PUMP & MTG GP-FUEL TRANSFER
PUMP GP-FUEL INJECTION
TANK & MTG GP-FUEL
TANK GP-FUEL
VALVE GP-CHECK
VALVE GP-PURGE
WATER SEP & FUEL PRM PUMP GP

ELECTRICAL AND STARTING SYSTEM
ALARM GP
ALTERNATOR GP-CHARGING
BATTERY &WIRING GP
CAMERA AR
CONNECTION GP-ELECTRICAL
CONTROL & MTG
GP-COMMUNICATION
CONTROL & MTG GP-ENGINE ELEK
CONTROL GP-LIFT & TILT POS
CONTROL GP-UNPROGRAMMED
ELECTRICAL AR
ELECTRONICS GP-COMMUNICATION
ELECTRONICS GP-IMPLEMENT
ELECTRONICS GP-MONITOR
ELECTRONICS GP-POWER TRAIN
FASTENER GP-ELECTRONICS
HEATER AR-FUEL
HEATER GP-FUEL
HEATER GP-JACKETWATER
INSTALLATION AR-COMMUNICATION
LAMP GP-DOME
LAMP GP-FLOOD
LAMP GP-HEAD
LAMP GP-SIGNAL
LAMP GP-WARNING BEACON
LIGHTING AR-FLOOD & SIGNAL
LIGHTING AR-SIGNAL
LIGHTING AR-STOP & FLOOD
LIGHTING GP-FLOOD
LIGHTING GP-FLOOD & SIGNAL
LIGHTING GP-STOP
LIGHTING GP-STOP & TAIL
LIGHTING GP-WARNING BEACON
MOUNTING GP-SENSOR
SENSOR & MTG GP-LIFT POSITION
SENSOR &MTG GP-TILT POSITION
SENSOR GP-ENGINE
SENSOR GP-POSITION
SENSOR GP-PRESSURE
SENSOR GP-SPEED
SENSOR GP-TEMPERATURE
STARTING AID GP-ETHER
STARTING MOTOR GP-ELECTRIC
SWITCH GP-BYPASS
SWITCH GP-DISCONNECT
SWITCH GP-ENGINE BRAKE
SWITCH GP-MAGNETIC
SWITCH GP-PAYLOAD STORE
SWITCH GP-PRESSURE
SWITCH GP-RIDE CONTROL
SWITCH GP-ROCKER
SWITCH GP-SIGNAL
SWITCH GP-TOGGLE
SWITCH GP-WIPER
VALVE GP-ETHER STARTING
WARNING GP-BACKUP
WIRING GP-AUTOLUBE CONTROL
WIRING GP-BUMPER
WIRING GP-CAB
WIRING GP-CAMERA
WIRING GP-COMMUNICATION
WIRING GP-ELECTRONICS BAY
WIRING GP-ENGINE
WIRING GP-ENGINE ELECTRONIC
WIRING GP-FRONT
WIRING GP-HEATER
WIRING GP-MACHINE
WIRING GP-POWER TRAIN
WIRING GP-REAR
WIRING GP-SENSOR
WIRING GP-SHUTOFF
WIRING GP-TRANSMISSION
WIRING GP-UNIT INJECTOR

POWER TRAIN
AXLE AR-FIXED
AXLE AR-OSCILLATING
AXLE GP-FIXED
AXLE GP-OSCILLATING
CASE & PARTS GP-PLANETARY
CONTROL GP-TRANSMISSION HYD
COOLER & FAN GP-AXLE OIL
COOLER AR-AXLE OIL
COOLER GP-AXLE OIL
COVER GP-TRANSMISSION
DIFFERENTIAL & BEVEL GEAR GP
DIFFERENTIAL GP
DIFFERENTIAL GP-NOSPIN
FASTENER GP-AXLE MOUNTING
FILTER & MTG GP-POWER TRAIN
FILTER GP-OIL
GAUGE GP-OIL LEVEL (DIPSTICK)
GAUGE GP-SIGHT
GEAR GP-INPUT TRANSFER
GEAR GP-OUTPUT TRANSFER
LINES GP-AXLE OIL COOLER
LINES GP-AXLE OIL COOLER FAN
LINES GP-AXLE VENT
LINES GP-POWER TRAIN OIL
MOUNTING GP-RIM
MOUNTING GP-TORQUE CONVERTER
PLANETARY GP-TRANSMISSION
POWER TRAIN AR
PUMP GP-GEAR
PUMP GP-TRANSMISSION
RIM AR
RIM GP-DEMOUNTABLE
SHAFT GP-DRIVE
SHAFT GP-INPUT DRIVE
SLIP JOINT GP
SUPPORT GP-TRANSMISSION
TIRE & RIM AR
TORQUE CONVERTER & HOUSING GP
TORQUE CONVERTER AR
TORQUE CONVERTER AR-LOCKUP
TORQUE CONVERTER GP
TRANSMISSION AR
UNIVERSAL JOINT GP
VALVE & MTG GP-LOCKUP CLUTCH
VALVE GP-CHECK
VALVE GP-MODULATING
VALVE GP-RELIEF
VALVE GP-SOLENOID
WHEEL & FINAL DRIVE GP

FRAME AND BODY
BUMPER GP-REAR
COVER GP-BUMPER
COVER GP-ELECTRONICS BAY
DEFLECTOR GP-HOOD
DOOR GP-ACCESS
DRAWBAR GP
FENDER GP-FRONT
FENDER GP-REAR
FIREWALL GP
FRAME AS-LOADER
FRAME AS-REAR
GUARD GP-BOTTOM
GUARD GP-CRANKCASE
GUARD GP-FRONT
GUARD GP-HYDRAULIC TANK
GUARD GP-LINES
GUARD GP-POWER TRAIN
GUARD GP-RADIATOR
GUARD GP-REAR
GUARD GP-SENSOR
HARDWARE GP-LOADER FRAME
HARDWARE GP-REAR FRAME
HITCH GP-ARTICULATING
HOOD & GUARD GP
LADDER & FENDER AR
LADDER GP
LINES GP-AUTOMATIC LUBRICATION
LINES GP-GREASE
LINES GP-LUBRICATION
LINK GP-STEERING FRAME LOCK
LUBRICATION AR-AUTOMATIC
PANEL GP-SIDE
PUMP GP-LUBRICATION
SHIELD GP-ENGINE COMPARTMENT
STEP GP
SUPPRESSION AR-SOUND
SUPPRESSION GP-SOUND
TANK & PUMP GP-LUBRICATION
VALVE & LINES GP-LUBRICATION
VALVE GP-LUBE DISTRIBUTION

BRAKING SYSTEM
ACCUMULATOR GP-BRAKE
BASE GP-FOOT BRAKE
BRAKE GP-PARKING
BRAKE GP-SERVICE
CONTROL GP-FOOT BRAKE
CONTROL GP-PARKING BRAKE
CONTROL GP-SERVICE BRAKE
LINES GP-SERVICE BRAKE
PUMP GP-GEAR
VALVE & MTG GP-BRAKE CONTROL
VALVE GP-BRAKE CONTROL
VALVE GP-RELIEF
VALVE GP-SHUTTLE

STEERING SYSTEM
CYLINDER & MTG GP-STEERING
CYLINDER GP-STEERING
GUARD GP-STEERING CYLINDER
LINES GP-SECONDARY STEERING
LINES GP-STEERING
LINES GP-STEERING NEUTRALIZER
PLUG GP-CONTROL VALVE
PUMP GP-GEAR
PUMP GP-PISTON
ROTATING GP-PUMP
STEERING AR
VALVE GP-CHECK
VALVE GP-PILOT
VALVE GP-PILOT CARTRIDGE
VALVE GP-PUMP CONTROL
VALVE GP-RELIEF
VALVE GP-SELECTOR & PRESS CONT
VALVE GP-SHUTTLE
VALVE GP-STEERING
VALVE GP-STEERING NEUTRALIZER

HYDRAULIC SYSTEM
ACCUMULATOR GP-RIDE CONTROL
ACTUATOR GP-PILOT CONTROL
CONTROL & LINES GP-RIDE
CONTROL AR-RIDE
COOLER GP-HYDRAULIC OIL
COVER GP-HYDRAULIC TANK CAP
CYLINDER & SENSOR GP
CYLINDER & SENSOR GP-LIFT
CYLINDER & SENSOR GP-TILT
CYLINDER GP-LIFT
CYLINDER GP-TILT
FILTER & LINES GP-CASE DRAIN
FILTER GP-OIL
HYDRAULIC AR
LINES GP-FRONT
LINES GP-HYDRAULIC
LINES GP-HYDRAULIC FAN
LINES GP-LIFT CYLINDER
LINES GP-TILT CYLINDER
MOTOR & MTG GP-HYDRAULIC FAN
MOTOR GP-PISTON
PUMP & MTG GP-HYDRAULIC FAN
PUMP & MTG GP-IMPLEMENT
PUMP GP-PISTON
ROTATING GP-MOTOR
ROTATING GP-PUMP
TANK & MTG GP-HYDRAULIC
TANK AR-EXPANSION
TANK GP-EXPANSION
TANK GP-HYDRAULIC
VALVE & MTG GP-MAIN CONTROL
VALVE GP-CHECK
VALVE GP-DEMAND FAN
VALVE GP-MAIN CONTROL
VALVE GP-MANUAL
VALVE GP-PUMP CONTROL
VALVE GP-RELIEF
VALVE GP-RIDE CONTROL
VALVE GP-SHUTTLE
VALVE GP-SOLENOID

IMPLEMENTS
BOOM & BEARING AS
BOOM GP-LOADER
CONTROL GP-BUCKET
HARDWARE GP-BOOM
LIFT AR
LINKAGE GP-BUCKET
PIN & SEAL GP-LINKAGE

WORK TOOLS
ADAPTER GP-TIP
ADAPTER-TIP
BUCKET AS-COAL
BUCKET AS-GENERAL PURPOSE
BUCKET AS-ROCK
BUCKET GP-COAL
BUCKET GP-GENERAL PURPOSE
BUCKET GP-ROCK
EDGE AS-BASE
EDGE GP-BIT & CUTTING
EDGE GP-CUTTING
EDGE GP-SEGMENT
EDGE-CUTTING
EDGE-SEGMENT
GUARD GP-BUCKET CORNER
PROTECTOR GP-EDGE
PROTECTOR GP-SIDE BAR
TIP GP-ABRASION
TIP GP-LONG
TIP GP-PENETRATION
TIP GP-SHORT
TIP-HEAVY PENETRATION
TIP-LONG

OPERATOR STATION
ADJUSTER GP-SEAT
AIR COMPRESSOR GP-SEAT
AIR CONDITIONER & MOUNTING GP
AIR CONDITIONER GP
ARM GP-WINDOWWIPER
CAB AR
COMPRESSOR GP-REFRIGERANT
CONDENSER GP-REFRIGERANT
CONTROL GP-ELECTROHYDRAULIC
CONTROL GP-MONITOR
CONTROL GP-STEERING
CONTROL GP-STIC
CONTROL GP-STIC LOCKOUT
CONTROL GP-TMSN OVERRIDE
CONTROL GP-UNPRGMED MONITOR
COVER GP-DASH
DISPLAY GP-CAMERA
DOOR GP-CAB
DOOR GP-STORAGE
DUCT & FILTER GP-CAB AIR
DUCT GP-CAB AIR
HORN GP-ELECTRIC
INSTALLATION GP-CONTROLS
INSTALLATION GP-RADIO
LINER GP-CAB
LINES GP-AIR CONDITIONER
LINES GP-CAB HEATER
LITERATURE GP
MIRROR GP-REAR VIEW
MODULE GP-QUAD GAUGE
MONITOR AR-PAYLOAD
MONITOR GP-CAMERA
MONITOR GP-PAYLOAD
MOTOR GP-WINDOWWIPER
MOUNTING GP-ANTENNA
MOUNTING GP-CAB
OPERATOR AR
PAN GP-BACKREST
PANEL GP-INSTRUMENT
PEDAL GP-GOVERNOR
PLATFORM GP
PLATFORM GP-CAB
PLATFORM GP-OPERATOR
RADIO GP
RECLINER GP-SEAT
ROOF GP-CAB
ROPS GP-ENCLOSED
SEALING GP-GLASS
SEAT GP
SEAT GP-SUSPENSION
SUPPORT GP-HYDRAULIC CONTROL
SUPPORT GP-SEAT
SUPPORT GP-STEERING CONTROL
SUPPRESSION GP-CAB SOUND
SUSPENSION GP-SEAT
WASHER GP-WINDOW
WINDOWGP-DOOR
WIPER GP-WINDOW

SERVICE EQUIPMENT AND SUPPLIES
CERTIFICATION GP-MACHINE
FILM GP
LINES GP-DIAGNOSTIC
PLATE & FILM GP
PLATE GP-ENGINE IDENTIFICATION
PROTECTION GP-VANDALISM
TOOL GP-CONTROL SERVICE

PART NUMBER INDEX

About Caterpillar 988H Wheel Loader (Vol. I & Vol. II, Version April 2007) Documentation

This page provides technical documentation for the Caterpillar 988H Wheel Loader (Vol. I & Vol. II, Version April 2007) used by service technicians and maintenance professionals.

The parts manual typically includes troubleshooting procedures, adjustment instructions, service mode information, internal component layouts and maintenance guidelines required for proper repair and servicing.

These documents are commonly used in professional repair environments where accurate technical reference and correct service procedures are required.