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Bobcat E57W Excavator Service Manual (SN B3WU11001-B3WU99999)

Format: PDF (Printable Document)

File Language: English

File Pages: 821

File Size: 23.27 MB (Speed Download Link)

Brand: Bobcat

Model: E57W Excavator

Book No: 7280536

Serial No: SN B3WU11001-B3WU99999

Type of Document: Service Manual

Categories: ,

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Bobcat E57W Excavator Service Manual (SN B3WU11001-B3WU99999)

The Bobcat E57W is a wheeled compact excavator you'll see doing utility trenching, road patch work, and tight urban digging where you need to travel between sites. The people who reach for this service manual are the ones actually tearing into the machine: shop mechanics, field techs, and owners who do their own repairs. They're looking for step-by-step procedures, wiring info, and specs so they can fix it once and not touch it again until the next 250- or 500-hour slot.

What this manual helps you do

  • Diagnose hydraulic issues, check pressures with gauges, and trace problems in the excavator's working and travel circuits
  • Follow teardown and reassembly steps on the engine, pumps, drive motors, swing motor, and cylinders
  • Troubleshoot electrical faults using wiring diagrams, connector callouts, and harness routing information
  • Adjust controls, linkages, and travel/boom functions so the machine responds correctly after component replacement
  • Replace major components and verify settings so the excavator is ready for rental or daily contractor use

Who this is for

This manual is for anyone maintaining or repairing a Bobcat E57W within serial range B3WU11001 to B3WU99999: small contractors, rental fleets, owner-operators, and shop or field mechanics. If you just need basic operating instructions, safety info, or daily checks, you want the operator's handbook instead.

FAQ

Q: Is this a searchable PDF and are the wiring diagrams readable?

A: Yes, it's typically a searchable PDF and the wiring diagrams are laid out so you can zoom in and read pin numbers and wire colors.

Q: How do I know it fits my machine?

A: Check your serial plate. If your E57W serial number falls between B3WU11001 and B3WU99999, this is the right manual.

Q: Is this the right document if I'm planning full repairs, not just maintenance?

A: Yes. This is the workshop-level service manual, meant for real repair work beyond routine fluid and filter changes.

Bottom line: If your E57W is in that serial range and you're doing your own diagnostics and repairs, this is the manual you want.

📘 Show Index

Table of Contents:

  • MAINTENANCE SAFETY
  • FOREWORD
    • FOREWORD
    • SAFETY INSTRUCTIONS
    • FIRE PREVENTION
      • Maintenance
      • Operation
      • Electrical
      • Hydraulic System
      • Fueling
      • Starting
      • Welding And Grinding
      • Fire Extinguishers
    • SERIAL NUMBER LOCATIONS
      • Excavator Serial Number
      • Engine Serial Number
    • DELIVERY REPORT
    • EXCAVATOR IDENTIFICATION
  • SAFETY AND MAINTENANCE
    • LIFTING AND BLOCKING THE EXCAVATOR
      • Procedure
    • UPPERSTRUCTURE SLEW LOCK
      • Upperstructure Slew Lock
      • Boom Swing Lock
    • LIFTING THE EXCAVATOR
      • Procedure
    • TRANSPORTING THE EXCAVATOR
      • Loading And Unloading
      • Fastening
    • EMERGENCY EXIT
      • Right Side Rear Window
      • Front Window
    • TAILGATE
      • Opening
      • Closing
    • RIGHT SIDE COVER
      • Opening And Closing
    • SERVICE SCHEDULE
      • Maintenance Intervals
    • AIR CLEANER SERVICE
      • Daily Check
      • Replacing Filter Elements
      • Pre-Cleaner Cleaning
    • COOLING SYSTEM
      • Cleaning
      • Cooling Fan Blade
      • Checking Level
      • Removing And Replacing Coolant
    • FUEL SYSTEM
      • Fuel Specifications
      • Biodiesel Blend Fuel
      • Filling The Fuel Tank
      • Fuel Filters
      • Draining The Fuel Tank
      • Removing Air From The Fuel System
    • ENGINE LUBRICATION SYSTEM
      • Checking And Adding Engine Oil
      • Engine Oil Chart
      • Removing And Replacing Oil And Filter
    • HYDRAULIC SYSTEM
      • Checking And Adding Fluid
      • Hydraulic / Hydrostatic Fluid Chart
      • Removing And Replacing Hydraulic Filters
      • Removing And Replacing Hydraulic Fluid
    • LUBRICATION OF THE HYDRAULIC EXCAVATOR
      • Lubrication Locations
    • PIVOT PINS
      • Lubrication Locations
      • Inspection And Maintenance
    • DRAINING AND REFILLING TRANSMISSION AND AXLE
      • Checking And Adding Oil – Rear Axle Center Housing
      • Draining And Refilling Oil – Rear Axle Center Housing
      • Checking And Adding Oil – Front Axle Center Housing
      • Draining And Refilling Oil – Front Axle Center Housing
      • Checking And Adding Oil – Axle End Housing
      • Draining And Refilling Oil – Axle End Housing
      • Checking And Adding Oil – Transmission
      • Draining And Refilling Oil – Transmission
    • ALTERNATOR BELT
      • Belt Adjustment
      • Belt Replacement
    • SEAT BELT
      • Inspection And Maintenance
    • CONTROL CONSOLE LOCKOUTS
      • Inspection And Maintenance
      • Safety Precautions
      • Left Console Lever
    • EXCAVATOR STORAGE AND RETURN TO SERVICE
      • Storage
      • Return to Service
    • STOPPING THE ENGINE AND LEAVING THE EXCAVATOR
      • Procedure
      • Engine Emergency Shut Off
    • TOWING THE EXCAVATOR
      • Procedure
      • Releasing The Parking Brake Manually
      • Resetting The Parking Brake Function
  • HYDRAULIC SYSTEM
    • HYDRAULIC / HYDROSTATIC SCHEMATICS
    • HYDRAULIC SYSTEM INFORMATION
      • Glossary Of Hydraulic/Hydrostatic Symbols For Excavators
      • Troubleshooting The Hydraulic Control Valve
      • Troubleshooting The Relief Valve
      • Troubleshooting The Whole Hydraulic System
      • Troubleshooting The Swing Motor
      • Troubleshooting The Brake Supply Valve
      • Troubleshooting The Solenoid Valve (5 Functions)
      • Troubleshooting The Cylinders
    • CYLINDER (BOOM)
      • Boom Cylinder Natural Drop Test
      • Parts Identification
      • Disassembly
      • Assembly
    • CYLINDER (ARM)
      • Arm Cylinder Natural Drop Test
      • Parts Identification
      • Disassembly
      • Assembly
    • CYLINDER (BOOM SWING)
      • Parts Identification
      • Disassembly
      • Assembly
    • CYLINDER (BUCKET)
      • Bucket Cylinder Natural Drop Test
      • Parts Identification
      • Disassembly
      • Assembly
    • CYLINDER (BLADE)
      • Blade Cylinder Natural Drop Test
      • Parts Identification
      • Disassembly
      • Assembly
    • HYDRAULIC CONTROL VALVE
      • Description
      • Parts Identification
      • Boom Swing Section Parts Identification
      • Boom Swing / Rotating Section Parts Identification
      • Boom Swing / Rotating / Two-Way Section Parts Identification
      • Fixed Boom Section Parts Identification
      • Removal
      • Installation
      • Disassembly
      • Assembly
      • Inspection
      • Hoses, Plugs And Fittings Tightening Torques
    • BRAKE SUPPLY VALVE
      • Description
      • Removal And Installation
      • Hoses, Plugs And Fittings Tightening Torques
      • Tightening Torques For Bolts
    • ACCUMULATOR (BRAKE AND PILOT)
      • Description
    • TRAVEL MOTOR
      • Description
      • Parts Identification
      • Piston Assembly Parts Identification
      • Cover Parts Identification
      • Counterbalance Valve Parts Identification
      • Removal And Installation
      • Disassembly
      • Assembly
      • Inspection
      • Seal Nut Replacement
    • SWIVEL JOINT
      • Description
      • Parts Identification
      • Removal And Installation
      • Disassembly And Assembly
    • SWING MOTOR
      • Description
      • Parts Identification
      • Inspection
      • Precautions
      • Removal And Installation
      • Motor Disassembly
      • Motor Assembly
      • Reduction Gear Disassembly
      • Reduction Gear Assembly
      • Part Replacement Standards For Hydraulic Motor
      • Part Replacement Standards For Reduction Gear
      • Standards For Correcting Sliding Surfaces
      • Tightening Torques For Bolts
      • Special Tools
    • ACCELERATOR PEDAL VALVE
      • Description
      • Removal And Installation
      • Disassembly And Assembly
      • Hoses, Plugs And Fittings Tightening Torques
    • JOYSTICK
      • Description
      • Parts Identification
      • Removal And Installation
      • Disassembly And Assembly
    • HYDRAULIC OIL TANK
      • Description
      • Parts Identification
      • Removal And Installation
    • OIL COOLER
      • Parts Identification
      • Removal And Installation
    • SOLENOID VALVE (5 FUNCTIONS)
      • Description
      • Parts Identification
      • Removal And Installation
      • Disassembly And Assembly
      • Tightening Torques
      • Hoses, Plugs And Fittings Tightening Torques
    • STEERING CYLINDER
      • Removal And Installation
      • Disassembly
      • Assembly
    • STEERING VALVE
      • Description
      • Parts Identification
      • Disassembly
      • Assembly
      • Hydraulic Connections
    • SERVICE BRAKE PEDAL VALVE
      • Description
      • Parts Identification
      • Removal And Installation
      • Disassembly And Assembly
      • Hoses, Plugs And Fittings Tightening Torques
    • BLADE VALVE
      • Description
      • Parts Identification
      • Removal And Installation
      • Disassembly And Assembly
  • UNDERCARRIAGE
    • FRONT AXLE
      • Removal And Installation
      • Hoses, Plugs And Fittings Tightening Torques
      • Housing Parts Identification
      • Planetary Carrier And Wheel Hub Parts Identification
      • Planetary Carrier Disassembly
      • Wheel Hub Disassembly
      • Steering Parts Identification
      • Steering Knuckle Disassembly
      • Brake Group Parts Identification
      • Brake Group Disassembly
      • Brake Group Assembly
      • Differential Parts Identification
      • Differential Disassembly
      • Differential Assembly
      • Steering Knuckle Assembly
      • Wheel Hub Assembly
      • Planetary Carrier Assembly
      • Setting Of The Crown Wheel And Pinion (1)
      • Setting Of The Crown Wheel And Pinion (2)
    • AXLE TOE-IN
      • Adjustment
      • Special Tools
    • STEERING ANGLE ADJUSTMENT
      • Adjustment
      • Jutting Portion Of The Screw
    • DRIVE SHAFT
      • Front Drive Shaft Removal And Installation
      • Rear Drive Shaft Removal And Installation
    • REAR AXLE
      • Removal And Installation
      • Hoses, Plugs And Fittings Tightening Torques
      • Housing Parts Identification
      • Planetary Carrier And Wheel Hub Parts Identification
      • Planetary Carrier Disassembly
      • Planetary Carrier Assembly
      • Brake Group Parts Identification
      • Brake Group Disassembly
      • Releasing The Parking Brake Manually
      • Resetting The Parking Brake Function
      • Brake Group Assembly
      • Brake Piston Cap Check
      • Differential Parts Identification
      • Differential Disassembly
      • Differential Assembly
      • Ring Gear And Pinion Adjusting
      • Bevel Pinion Disassembly
      • Bevel Pinion Assembly
      • Special Tools
    • TIRES AND WHEELS
      • Tire Changing Procedure
    • SWING BEARING
      • Operating Recommendation
      • Measuring Swing Bearing Axial Play
      • Measuring Swing Bearing Lateral Play
      • Parts Identification
      • Disassembly And Assembly
    • TRANSMISSION
      • Description
      • Transmission Serial Number
      • Removal And Installation
      • Parts Identification
      • Replacing Speed Sensor
      • Hydraulic Gear Control Disassembly
      • Hydraulic Gear Control Assembly
      • Reduction Gear Disassembly
      • Reduction Gear Assembly
  • UPPERSTRUCTURE AND SWING SECTION
    • CAB
      • Removal And Installation
    • LEFT CONSOLE
      • Left Console Lever
    • RIGHT CONSOLE
    • FLOOR MAT AND FLOOR PANEL
      • Removal And Installation
    • TRAVEL LEVER / PEDALS
      • Travel Direction Control Lever
      • Pedals
    • FUEL TANK
      • Parts Identification
      • Removal And Installation
    • FUEL PUMP
      • Removal And Installation
    • HYDROSTATIC PUMP
      • Description
      • Parts Identification
      • Removal And Installation
      • Disassembly
      • Assembly
      • Special Tools
      • Inspection
      • Troubleshooting
    • BOOM
      • Description
      • Removal And Installation
    • ARM
      • Description
      • Removal
      • Installation
    • BUCKET
      • Bucket Removal
      • Bucket Installation
      • Reversing The Bucket
      • Bucket O-Ring Replacement
      • Bucket Teeth Inspection And Replacement
    • TAILGATE
      • Removal And Installation
    • COUNTERWEIGHT
      • Removal
      • Installation
  • ELECTRICAL SYSTEM AND ANALYSIS
    • ELECTRICAL SCHEMATIC
    • ELECTRICAL SYSTEM INFORMATION
      • Glossary Of Electrical Symbols
      • Troubleshooting
      • Fuse And Relay Location / Identification
      • Battery Disconnect Switch
    • BATTERY
      • Battery Maintenance
      • Using A Booster Battery (Jump Starting)
      • Removing And Installing Battery
    • ALTERNATOR
      • Electric Power Circuit Diagram
      • Removal And Installation
      • Charging System Inspection
      • Alternator Voltage Testing
      • Low Voltage Testing
      • High Voltage Testing
    • STARTER
      • Parts Identification
      • Removal And Installation
      • Testing
    • INSTRUMENT PANEL SETUP
      • User Menu
    • PASSWORD SETUP (INSTRUMENT PANEL)
      • Owner Password Setting
      • Operator Password Setting
    • DIAGNOSTIC SERVICE CODES
      • Service Code At Machine
      • Service Code At Engine Side
    • INSTRUMENT PANEL SETUP
      • User Menu
      • Password Setup
      • Owner Password Setting
      • Operator Password Setting
    • ENGINE CONTROL UNIT (ECU)
      • Description
      • Removal And Installation
  • ENGINE SERVICE
    • ENGINE INFORMATION
      • Description
      • Sensor Location
      • Troubleshooting The Cooling System
      • Troubleshooting The Lubrication System
      • Troubleshooting The Turbocharger
      • Engine Removal And Installation
    • ENGINE SPEED CONTROL
      • Adjustment
    • DRIVE COUPLING (HYDROSTATIC PUMP)
      • Parts Identification
      • Disassembly
      • Assembly
    • DIESEL OXIDATION CATALYST (DOC)
      • Removal And Installation
    • ENGINE COOLING SYSTEM
      • Description
      • Water Pump Removal And Installation
      • Thermostat Removal And Installation
      • Testing The Thermostat
    • LUBRICATION SYSTEM
      • Description
      • Oil Pump Removal And Installation
      • Oil Pan Removal And Installation
      • Oil Filter Assembly Removal And Installation
    • FUEL SYSTEM
      • Description
      • Fuel Return Hose Removal And Installation
      • Injector Removal And Installation
      • Injector Check
      • Common Rail Removal And Installation
      • Fuel Injection Pump Removal And Installation
      • Fuel Injection Pump Disassembly And Assembly
    • CYLINDER HEAD
      • Cylinder Head Removal And Installation
      • Cylinder Head Disassembly And Assembly
      • Cylinder Head Inspection
      • Glow Plug Removal And Installation
      • Valve Guide Measurement Of Inside Diameter
      • Valve Stem End Measurement
      • Valve Step Height Measurement
      • Gap Between Piston And Valve Measurement
      • Valve Spring Check
      • Rocker Arm Shaft Removal And Installation
      • Rocker Arm Shaft Disassembly And Assembly
      • Rocker Arm Shaft Inspection
      • Push Rod Warpage Inspection
    • CRANKSHAFT AND PISTONS
      • Piston And Connecting Rod Removal And Installation
      • Piston And Connecting Rod Disassembly And Assembly
      • Outside Diameter Of Piston Pin Measurement
      • Inside Diameter Of Piston Pin Bore Measurement
      • Gap Of Piston Ring End Measurement
      • Step Height Of Piston Top Side Measurement
      • Inside Diameter Of Connecting Rod Small-End Measurement
      • Connecting Rod Large-End Bore Measurement
      • Gap Of Connecting Rod Big-End Measurement
      • Crankshaft Removal And Installation
      • Crankshaft Main Journal Diameter Measurement
      • Crankshaft Bearing Gap Measurement
      • Crankshaft Warpage Measurement
      • Cylinder Block Measurement Of Inside Diameter Of Main Bearing Bore
      • Cylinder Block Measurement Of Inside Diameter Of Piston Bore
      • Cylinder Block Measurement Of Inside Diameter Of Camshaft Bearing
      • Engine Component Class
    • CAMSHAFT
      • Removal And Installation
      • Disassembly And Assembly
      • Camshaft Journal Outside Diameter Measurement
      • Camshaft Measurement
    • AIR CLEANER
      • Removal And Installation
    • PRE-CLEANER
      • Removal And Installation
    • EXHAUST GAS RECIRCULATION (EGR) SYSTEM
      • Description
      • Removal
      • Installation
    • GEAR CASE
      • Gear Case Cover Removal And Installation
      • Gear Backlash
      • Gear Timing
      • Idle Gear Removal And Installation
      • Idle Gear Inspection
    • TURBOCHARGER
      • Description
      • Removal And Installation
      • Inspection
    • FLYWHEEL AND HOUSING
      • Removal And Installation
  • HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
    • AIR CONDITIONING SYSTEM FLOW
      • Description
    • REGULAR MAINTENANCE
      • Cab Filters
      • Air Conditioning Belt Adjustment
      • Air Conditioning Belt Replacement
      • Repair And Replacement Procedure
    • TROUBLESHOOTING
      • Self-Diagnosis
      • Error Codes
      • Refrigerant Pressure Check
      • Electrical System
    • SYSTEM CHARGING AND RECLAMATION
      • Refrigerant Reclamation
      • Vacuuming Refrigerant System
      • Leakage Check
      • Refrigerant Charging
      • Inspecting System For Leakage
    • COMPRESSOR
      • Belt Adjustment
      • Belt Replacement
    • RECEIVER / DRIER
      • Description
  • SPECIFICATIONS
    • (E57W) EXCAVATOR SPECIFICATIONS
      • Machine Dimensions
      • Working Range
      • Lift Capacity – Short Arm ST
      • Lift Capacity – Short Arm DT
      • Lift Capacity – Long Arm ST
      • Lift Capacity – Long Arm DT
      • Weights
      • Performance
      • Engine
      • Engine Performance Data
      • Electrical
      • Fluid Capacities
      • Hydraulic System
      • Drive System
      • Swing System
      • Function Time
      • Traction
      • Hydraulic Cylinders
      • Environmental
      • Controls
      • Instrumentation
    • ENGINE SPECIFICATIONS
      • Torque Values
    • TORQUE SPECIFICATIONS FOR BOLTS
      • Torque For General SAE Bolts
      • Torque For General Metric Bolts
    • HYDRAULIC CONNECTION SPECIFICATIONS
      • O-Ring Face Seal Connection
      • Straight Thread O-Ring Fitting
      • Tubelines And Hoses
      • Flare Fitting
      • Port Seal Fitting
    • FLUIDS, LUBRICANTS AND FUEL SPECIFICATIONS
      • Specifications
    • CONVERSIONS
      • Decimal And Millimeter Equivalents
      • U.S. To Metric Conversion Chart
    • SERVICE TOOLS REQUIRED
      • Remote Start Tools
      • Hydraulic Tools
      • Engine Tools
      • Electrical Tools
      • HVAC Tools
  • ALPHABETICAL INDEX

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