Bobcat X331, X331E, X334 Excavator 6900464 (6-12) (Preview)
MAINTENANCE SAFETY
ALPHABETICAL INDEX
CONTENTS
– FOREWORD
– SERIAL NUMBER LOCATIONS
– HYDRAULIC EXCAVATOR SERIAL NUMBER
– ENGINE SERIAL NUMBER
– DELIVERY REPORT
– HYDRAULIC EXCAVATOR IDENTIFICATION
PREVENTIVE MAINTENANCE
– SERVICE SCHEDULE (331 S/N 512913001–512915199)
– SERVICE SCHEDULE (331 S/N 512915200 & Above),(331E 517711001 & Above) & (334 S/N 516711001 & Above)
– LIFTING AND BLOCKING THE EXCAVATOR
— Procedure
– TRANSPORTING THE EXCAVATOR
— Procedure
– ENGINE COVER
— Opening The Engine Cover
— Adjustment Of The Engine Cover Latch
– AIR CLEANER
— Air Cleaner Service
– FUEL SYSTEM
— Fuel Specification
— Filling The Fuel Tank
— Fuel System Maintenance (331 S/N 512913001–512915199)
— Fuel Filter (331 S/N 512913001–512915199)
— Removing Air From The Fuel System (331 S/N 512913001–512915199)
— Fuel System Maintenance (331 S/N 512915200 &Above), (331E S/N 517711001 & Above) & (334 S/N 516711001 & Above)
— Fuel Filter (331 S/N 512915200 & Above), (331E S/N517711001 & Above) & (334 S/N 516711001 & Above)
— Removing Air From The Fuel System (331 S/N512915200 & Above), (331E S/N 517711001 & Above)& (334 S/N 516711001 & Above)
– ENGINE LUBRICATION SYSTEM
— Checking Engine Oil
— Replacement Of Oil And Filter
– COOLING SYSTEM
— Coolant Level
— Coolant Replacement
– ALTERNATOR BELT
— Adjustment
– ELECTRICAL SYSTEM
— Using A Booster Battery (Jump Starting)
– HYDRAULIC SYSTEM
— Checking And Adding Fluid
— Replacing The Hydraulic Oil
— Replacing The Hydraulic Filter
— Replacing The Drain Line Filter
– SPARK ARRESTOR MUFFLER
— Cleaning The Spark Arrestor Muffler (331 S/N 512913001–512915199)
— Cleaning The Spark Arrestor Muffler (331 S/N512915200 & Above), (331E S/N 517711001 & Above)& (334 S/N 516711001 & Above)
– TRAVEL MOTOR
— Checking The Oil Level (331 S/N 512913001–512913404)
— Draining And Refilling (331 S/N 512913001–512913404)
— Checking The Oil Level (331 S/N 512913405 & Above),(331E S/N 517711001 & Above) & (334 S/N 516711001& Above)
— Draining And Refilling (331 S/N 512913405 & Above),(331E S/N 517711001 & Above) & (334 S/N 516711001& Above)
– LUBRICATION OF THE HYDRAULIC EXCAVATOR
— Procedure
– HEATER AIR FILTER (With Cab Option Only) (331 S/N512913001–512915199)
— Service
– HEATER AIR FILTER (With Cab Option Only) (331 S/N512915200 & Above), (331E S/N 517711001 & Above)& (334 S/N 516711001 & Above)
— Service
HYDRAULIC SECTION
– HYDRAULIC SCHEMATICS
– HYDRAULIC SYSTEM TROUBLESHOOTING
– HYDRAULIC SERVICE INFORMATION
— Description
– MAIN RELIEF VALVES (Adjustable)
— Checking The Main Relief Valves
— Testing the Blade, Boom Swing, Arm and Boost Circuit Relief Valves
— Testing the Swing Circuit Relief
— Testing The Auxiliary And Bucket Circuit Relief Valve
— Testing The Left Hand Travel Circuit Relief Valve
— Testing The Right Hand Travel Circuit Relief Valve
— Testing The Boom Circuit Relief Valve
– CROSS PORT RELIEF VALVE
— Description
— Testing
– HYDRAULIC PUMP
— Checking the Hydraulic Pump
— Removal And Installation (331 S/N 512913001–512915199)
— Parts Identification (331 S/N 512913001–512915199)
— Removal And Installation (331 S/N 512915200 &Above), (331E S/N 517711001 & Above) & (334 S/N516711001 & Above)
— Disassembly (331 S/N 512913001–512915199)
— Assembly (331 S/N 512913001–512915199)
– HYDRAULIC CONTROL VALVE (5–Spool)
— Left Travel, Right Travel, Boom, Bucket And Auxiliary
— Removal And Installation (331 S/N 512913001–512915199)
— Removal And Installation (331 S/N 512915200 &Above), (331E S/N 517711001 & Above) & (334 S/N516711001 & Above)
— Parts Identification
— Disassembly
— Outlet Sections Disassembly
— Outlet Sections Assembly
— Mid Inlet Section Disassembly
— Mid Inlet Section Assembly
— Left Travel, Right Travel and Auxiliary Disassembly
— Left Travel, Right Travel and Auxiliary Assembly
— Boom And Bucket Disassembly
— Boom And Bucket Assembly
— Assembly
– PORT RELIEF VALVES AND MAIN RELIEF VALVES
— Parts Identification
— Port Relief Valve Pressure Setting
— Disassembly
— Assembly
— Adjustment Procedure (Work Port Relief Valves Only)
– MAIN RELIEF VALVES (Adjustable)
— Parts Identification
— Pressure Settings
— Disassembly
— Assembly
— Adjusting The Main Relief Valves
– HYDRAULIC CONTROL VALVE (5–Spool)
— Boost, Arm, Boom Swing, Blade And Swing Section
— Description
— Removal And Installation
— Parts Identification
— Disassembly
— Inlet Section Disassembly And Assembly
— Arm, Boost And Swing Motor Disassembly
— Arm, Boost And Swing Motor Assembly
— Boom Swing Disassembly
— Boom Swing Assembly
— Blade Disassembly
— Blade Assembly
— Assembly
– ACCUMULATOR / PRESSURE REDUCING VALVE (S/N 512913001 – 512918775, 517711001 – 517711159,516711001 – 516711880)
— Description
— Removal And Installation
— Parts Identification
— Disassembly
— Assembly
– ACCUMULATOR / PRESSURE REDUCING VALVE(S/N 512918776 & Above, 517711160 & Above and516711881 & Above)
— Parts Identification
— Disassembly
— Assembly
– ACCUMULATOR / PRESSURE REDUCING VALVE (For All Serial Numbers)
— Testing
– BUILD UP VALVE
— Description
— Removal And Installation
— Disassembly And Assembly
– AUXILIARY SELECTOR VALVE
— Removal And Installation (331 S/N 512913001–512915199)
— Removal And Installation (331 S/N 512915200 &Above), 331E S/N 517711001 & Above) & (334 S/N 516711001 & Above)
— Disassembly And Assembly
– Port Block
— Removal And Installation
– OIL COOLER
— Removal And Installation
– HYDRAULIC RESERVOIR AND FUEL RESERVOIR
— Removal And Installation
– HYDRAULIC FILTER ASSEMBLY
— Removal And Installation
– BOOM CYLINDER
— Removal And Installation
— Parts Identification
– ARM CYLINDER
— Removal And Installation
— Parts Identification
– BUCKET CYLINDER
— Removal And Installation (Standard And Long Arm)
— Removal And Installation (Extendible Arm)
— Parts Identification
– BLADE CYLINDER
— Removal And Installation
— Parts Identification
– BOOM SWING CYLINDER
— Removal And Installation
— Parts Identification
– EXTENDIBLE ARM CYLINDER
— Removal And Installation
– HYDRAULIC CYLINDER
— Disassembly
— Assembly
– JOYSTICK CONTROL CHANGE (331 S/N512913001–512917112 & 334 S/N 516711001–516711270)
— ISO to STANDARD Control Pattern
— STANDARD To ISO Control Pattern
DRIVE SECTION
– RIGHT CONSOLE COVER (331 S/N 512913001–512915199)
— Removal And Installation
– RIGHT CONSOLE (331 S/N 512913001– 512915199)
— Removal And Installation
— Speed Control Lever Removal And Installation
— Speed Control Lever Adjustment
— Low Speed Position
— High Speed Position
— Blade Control Lever And Cable Removal AndInstallation
– LEFT CONSOLE (331 S/N 512913001– 512915199)
— Control Lock Micro–Switch Removal And Installation
— Gas Spring Removal And Installation
— Removal And Installation
— Lock Lever Removal And Installation
— Lock Lever Adjustment
— Latch Plate Adjustment
– RIGHT CONSOLE COVER (331 S/N 512915200 &Above), (331E S/N 517711001 & Above) & (334 S/N 516711001 & Above)
— Removal And Installation
— Arm Rest Removal And Installation
— Gauge Removal And Installation
– RIGHT CONSOLE (331 S/N 512915200 & Above),(331E S/N 517711001 & Above) & (334 S/N 516711001& Above)
— Swing Lock Lever Removal And Installation
— Blade Lever Removal And Installation
— Speed Control Lever Removal And Installation
— Speed Control Lever Adjustment
– LEFT CONSOLE COVER (331 S/N 512915200 &Above), (331E S/N 517711001 & Above) & (334 S/N 516711001 & Above)
— Removal And Installation
— Arm Rest Removal And Installation
— Switch Removal And Installation
— Switch Description
— Rear Cover Removal And Installation
— Heater Control Removal And Installation
– LEFT CONSOLE (331 S/N 512915200 & Above), (331ES/N 517711001 & Above) & (334 S/N 516711001 &Above)
— Console And Mount Removal And Installation
— Control Lock Micro–switch Removal And Installation
— Lock Lever Removal And Installation
— Gas Spring Removal And Installation
— Console Removal And Installation
– JOYSTICK
— Removal And Installation (331 S/N 512913001–512915199)
— Removal And Installation Of Right Hand Joystick(331 S/N 512915200 & Above), (331E S/N 517711001 & Above) & (334 S/N 516711001 & Above)
— Removal And Installation Of Left Hand Joystick (331S/N 512915200 & Above), (331E S/N 517711001 & Above) & (334 S/N 516711001 & Above)
— Troubleshooting
— Parts Identification
— Disassembly
— Assembly
– STEERING LEVERS AND PEDALS
— Removal And Installation
— Adjusting Linkage Rods
UPPER WORKS AND SWING SECTION
– ENGINE COVER
— Removal And Installation
– SEAT AND SEAT MOUNT
— Removal And Installation (331 S/N 512913001–512915199)
— Removal And Installation (331 S/N 512915200 &Above). (331E S/N 517711001 & Above) & (334 S/N 516711001 & Above)
– FLOORMAT AND FLOOR PLATE
— Removal And Installation
– REAR FLOOR PLATE
— Removal And Installation (331 S/N 512913001–512915199)
– SWING MOTOR COVER
— Removal And Installation
– TOOL BOX
— Removal And Installation (331 S/N 512913001–512915199)
— Removal And Installation (331 S/N 512915200 &Above), (331E S/N 517711001 & Above) & (334 S/N 516711001 & Above)
– LEFT HAND SIDE COVER
— Removal And Installation (331 S/N 512913001–512915199)
— Removal And Installation (331 S/N 512915200 &Above), (331E S/N 517711001 & Above) & (334 S/N 516711001 & Above)
– RIGHT HAND SIDE COVER
— Removal And Installation
– RIGHT HAND CORNER POST
— Removal And Installation
– LEFT HAND CORNER POST
— Removal And Installation
– COUNTERWEIGHTS
— Removal And Installation
– FRONT ENGINE COVER
— Removal And Installation
– BUCKET (PIN ON)
— Removal And Installation
– BUCKET TEETH
— Removal And Installation
– X–CHANGE™
— Removal And Installation
— Disassembly
— Assembly
– EXTENDIBLE ARM
— Removal And Installation
— Disassembly And Assembly
– ARM
— Removal And Installation
– ARM BUSHINGS
— Arm To Boom Bushing Removal And Installation
— Arm To Bucket And Bucket Link Removal And Installation
– BOOM
— Removal And Installation
– BOOM BUSHING
— Removal And Installation
– BOOM SWING BRACKET
— Removal And Installation
— Hose Installation
– SWING BRACKET BUSHING
— Bushing Removal
— Bushing Installation
– BOOM PIVOT BUSHING
— Bushing Removal
— Bushing Installation
– SWING MOTOR
— Removal And Installation (331 S/N 512913001–512915199)
— Removal And Installation (331 S/N 512915200 &Above), (331E S/N 517711001 & Above) & (334 S/N 516711001 & Above)
— Cross Port Relief Valve Parts Identification
— Cross Port Relief Valve Disassembly
— Cross Port Relief Valve Assembly
— Parts Identification
— Disassembly
— Assembly
– SWING MOTOR DRIVE CARRIER
— Removal And Installation
— Parts Identification
— Disassembly
— Assembly
– UPPERSTRUCTURE AND SWING CIRCLE GEAR
— Removal And Installation
— Swing Bearing Removal
— Swing Bearing Installation
— Alignment Pins (Not Threaded)
– CENTER SWIVEL JOINT
— Removal And Installation
— Parts Identification
— Disassembly
— Assembly
– ROPS CANOPY
— Removal And Installation
– CAB
— Removal And Installation
— Heater Removal And Installation (331 S/N512913001– 512915199)
— Heater Removal And Installation (331 S/N 512915200& Above), (331E S/N 517711001 & Above) & (334 S/N516711001 & Above)
— Heater Disassembly And Assembly (331 S/N512915200 & Above), (331E S/N 517711001 & Above)& (334 S/N 516711001 & Above)
— Front Window Removal And Installation
— Front Lower Window Removal And Installation
— Front Upper Window Removal And Installation (331S/N 512913001–512915199)
— Front Upper Window Removal And Installation (331S/N 512915200 & Above), (331E S/N 517711001 &Above) & (334 S/N 516711001 & Above)
— Door Removal And Installation
— Door Window Removal And Installation
— Left Hand Side Window Removal And Installation
— Right Hand Side Window Removal And Installation
— Right Hand Window Assembly Removal And Installation
— Rear Window Removal And Installation
– CAB/CANOPY REAR COVER
— Removal
— Installation
MAIN FRAME AND TRACKS
– BLADE
— Removal And Installation
– TRACK
— Track Lug Height
— Track Tension Adjustment
— Rubber Track Clearance
— Steel Track Clearance
— Adjustment
— Rubber Track Removal And Installation
— Steel Track Removal And Installation
– TRACK FRAME
— Disassembly And Assembly
— Recoil Spring Disassembly And Assembly
– TRACK IDLER
— Parts Identification
— Disassembly
— Assembly
– TRACK ROLLER
— Parts Identification
— Disassembly
— Assembly
– TRAVEL MOTOR
— Testing (331 S/N 512913001–512913404)
— Removal And Installation
— Parts Identification (331 S/N 512913001–512913404)
— Disassembly (331 S/N 512913001–512913404)
— Assembly (331 S/N 512913001–512913404)
— Parts Identification (331 S/N 512913405 & Above),(331E S/N 517711001 & Above)(334 S/N 516711001 &Above)
— Disassembly (331 S/N 512913405 & Above), (331E S/N517711001 & Above) & (334 S/N 516711001 & Above)
— Assembly (331 S/N 512913405 & Above), (331E S/N517711001 & Above) & (334 S/N 516711001 & Above
– TRACK DAMAGE IDENTIFICATION
— Cutting Of Steel Cords
— Abrasion Of Embedded Metals
— Separation Of Embedded Metals
— Separation Of Embedded Metals Due To Corrosion
— Cuts On The Lug Side Rubber
— Cracks Of The Lug Side Rubber Due To Fatigue
— Lug Abrasion
— Abrasion Of The Track Roller Side
— Cuts On The Edges Of Track Roller Side
ELECTRICAL SYSTEM
– ELECTRICAL SCHEMATICS
– TROUBLESHOOTING
– ELECTRICAL SYSTEM
— Description
— Fuses (331 S/N 512913001–512915199)
— Fuse Arrangement (331 S/N 512913001–512915199)
— Electrical Relays And Diodes (S/N 512915200 &Above), (331E S/N 517711001 & Above) & (334 S/N 516711001 & Above)
— Fuse Arrangement (331 S/N 512915200 & Above),(331E S/N 517711001 & Above) & (334 S/N 516711001& Above)
– BATTERY
— Removal And Installation
— Servicing The Battery
– ALTERNATOR
— Belt Adjustment
— Removal And Installation
— Alternator Output Test
— Rectifier (Diode) Test
— Alternator Regulator Test
— Parts Identification
— Disassembly And Inspection
— Stator Continuity Test
— Stator Ground Test
— Rotor Continuity Test
— Rotor Ground Test
— Rectifier Continuity (Diode) Test
— Assembly
– STARTER
— Removal And Installation (331 S/N 512913001–512915199)
— Removal And Installation (331 S/N 512915200 &Above), (331E S/N 517711001 & Above) & (334 S/N 516711001 & Above)
— Disassembly And Assembly (331 S/N 512913001–512915199)
— Cleaning And Inspection (331 S/N 512913001–512915199)
— Parts Identification (331 S/N 512913001–512915199)
— Parts Identification (331 S/N 512915200 & Above), (331E S/N 517711001 & Above) & (334 S/N 516711001 & Above)
— Disassembly (331 S/N 512915200 & Above), (331E S/N517711001 & Above) & (334 S/N 516711001 & Above)
— Inspection And Repair (331 S/N 512915200 & Above)& (334 S/N 516711001 & Above)
— Assembly (331 S/N 512915200 & Above), (331E517711001 & Above) & (334 S/N 516711001 & Above)
– FUEL LEVEL SENDER
— Removal And Installation
— Testing
– INSTRUMENT PANEL (331 S/N 512913001–512915199)
— Removal And Installation
– GAUGES
— Removal And Installation (331 S/N 512913001–512915199)
— Bulb Replacement (331 S/N 512913001–512915199)
— Removal And Installation (331 S/N 512915200 &Above), (331E S/N 517711001 & Above) & (334 S/N516711001 & Above)
— Bulb Replacement (331 S/N 512915200 & Above),(331E S/N 517711001 & Above) & (334 S/N 516711001& Above)
– TIMER (331 S/N 512915200 & Above), (331E S/N517711001 & Above) & (334 S/N 516711001 & Above)
— Removal And Installation
– DIODES (331 S/N 512915200 & Above), (331E S/N517711001 & Above) & (334 S/N 516711001 & Above)
— Diode Location
— Diode Replacement
— Diode Testing
– CAB ELECTRICAL
— Cab Option (331 S/N 512913001–512915199)
— Cab Option (331 S/N 512915200 & Above), (331E S/N517711001 & Above) & (334 S/N 516711001 & Above)
– HORN
— Removal And Installation
– BUZZER
— Removal And Installation
ENGINE SERVICE
– TROUBLESHOOTING
— Chart
– VALVE CLEARANCE
— Adjustment
– ENGINE COMPRESSION
— Checking
– GLOW PLUGS
— Removal And Installation
— Checking The Glow Plug
– FUEL SHUT–OFF SOLENOID
— Adjustment
— Removal And Installation
— Timer Module Removal And Installation
– FUEL INJECTION PUMP
— Checking The Injection Pump
— Removal And Installation
— Timing The Injection Pump
– FUEL INJECTOR NOZZLES
— Removal And Installation
— Checking The Injector Nozzle
– FAN GUARD
— Removal And Installation
– RADIATOR
— Removal And Installation
– MUFFLER
— Removal And Installation (331 S/N 512913001–512915199)
— Removal And Installation (331 S/N 512915200 &Above), (331E S/N 517711001 & Above) & (334 S/N516711001 & Above)
– AIR CLEANER
— Removal And Installation (331 S/N 512913001–512915199)
— Removal And Installation (331 S/N 512915200 &Above), (331E S/N 517711001 & Above) & (334 S/N516711001 & Above)
– ENGINE
— Removal And Installation
– ENGINE FLYWHEEL
— Removal And Installation (331 S/N 512913001–512915199)
— Removal And Installation (331 S/N 512915200 &Above), (331E S/N 517711001 & Above) & (334 S/N 516711001 & Above)
— Flywheel Ring Gear
– CYLINDER HEAD
— Removal And Installation
— Disassembly And Assembly
— Servicing The Cylinder Head
— Top Clearance
– VALVE, VALVE SEAT AND GUIDE
— Checking The Valve Guide
— Reconditioning The Valve And Valve Seat
— Valve Spring
– ROCKER ARM AND SHAFT
— Checking
– TIMING GEARCASE COVER
— Removal And Installation
– IDLER GEAR AND CAMSHAFT
— Removal And Installation
— Servicing The Camshaft
— Servicing The Idler Gear And Shaft
– TIMING GEARS
— Checking Backlash
– FUEL CAMSHAFT
— Removal And Installation
— Governor
– CRANKSHAFT GEAR
— Removal And Installation
– OIL PUMP
— Removal And Installation
— Oil Pump Service
— Checking Engine Oil Pressure
— Relief Valve
– PISTON AND CONNECTING ROD
— Removal And Installation
— Servicing The Piston And Connecting Rod
— Connecting Rod Alignment
– CRANKSHAFT AND BEARINGS
— Removal And Installation
— Servicing The Crankshaft And Bearings
– CYLINDER BORE
— Checking The Cylinder Bore
– WATER PUMP
— Removal And Installation
— Disassembly And Assembly
SPECIFICATIONS
– HYDRAULIC EXCAVATOR SPECIFICATIONS
— Machine Dimensions (331 S/N 512913001 & Above) Standard Arm
— Machine Dimensions (331E S/N 517711001 & Above) Extendible Arm
— Machine Dimensions (334 S/N 516711001 & Above) Long Arm
— Lifting Capacity
— WEIGHTS
— CONTROLS
— ENGINE
— ELECTRICAL
— HYDRAULIC SYSTEM
— CYLINDER CYCLE TIME
— SWING SYSTEM
— HYDRAULIC CYLINDERS
— DRIVE SYSTEM
— BRAKES
— UNDERCARRIAGE
— STD TRACK SHOES
— REFILL CAPACITIES
— DIGGING FORCE
– ENGINE SPECIFICATIONS
— Fuel Injection Nozzles
— Fuel Injection Pump
— Cylinder Head
— Valves
— Valve Springs
— Valve Timing
— Rocker Arms
— Camshaft
— Tappet
— Piston Rings
— Pistons
— Connecting Rod
— Oil Pump
— Crankshaft
— Timing Gear
— Thermostat
— Engine Bolt Torque
— Crankshaft Re–Grind Data
— Torque For General Metric Bolts
– FUEL, COOLANT AND LUBRICANTS
– ENGINE OIL SPECIFICATIONS
— Description
– ANTI–FREEZE SOLUTION
— Propylene Glycol
– DECIMAL AND MILLIMETER EQUIVALENTS
– U.S. TO METRIC CONVERSION
SERVICE MANUAL REVISION
– 331-1
– 331/334-2
– 331/334-3
– 331/334-4
– 331/331E/334-5
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