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Bobcat 320 Excavator Service Manual (SN 562313001-562399999)

Format: PDF (Printable Document)

File Language: English

File Pages: 396

File Size: 15.80 MB (Speed Download Link)

Brand: Bobcat

Model: 320 Excavator

Book No: 6724910

Serial No: SN 562313001-562399999

Type of Document: Service Manual

Categories: ,

$ 45

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Bobcat 320 Excavator Service Manual (SN 562313001-562399999)

A Bobcat 320 is a little digger that still does real work: trenching water lines, cleaning fencerows, setting small culverts, and general farm or yard projects. When something quits swinging, tracking, or digging, the service manual is what I grab in the shop. Folks use it when they've got a weekend window, a leaking cylinder on the bench, or an electrical gremlin they can't just guess at.

What this manual helps you do

  • Diagnose weak digging, slow travel, or erratic hydraulics with step-by-step pressure checks and test points
  • Trace and repair electrical faults using wiring diagrams and harness layouts
  • Follow teardown and reassembly procedures for the engine, pumps, drive motors, and cylinders
  • Adjust controls, linkages, and relief settings after a repair so the machine runs like it should
  • Replace major components and verify they're installed and aligned the way Bobcat intended

Who this is for

This manual is for anyone working on a Bobcat 320 excavator in the serial range 562313001 to 562399999: owner-operators, small contractors, farm shops, or rental fleets. If you only want to know how to run the machine or basic service intervals, you want the operator's handbook instead.

FAQ

Q: Is this a searchable PDF, and can I read the wiring diagrams clearly?

A: Yes, it's a PDF you can search by keyword, and the wiring diagrams are meant to be zoomed in on a screen or printed.

Q: How do I know if it fits my exact machine?

A: Check your 320's serial number. If it falls between 562313001 and 562399999, this is the right manual.

Q: Is this the right thing if I'm doing my own repairs?

A: Yes, this is the workshop-level repair manual, not a parts list or operator's book.

Bottom line: If your 320's serial number lands in that range and you plan to wrench on it yourself, this is the manual you want. If the serial number doesn't match, skip it.

📘 Show Index

Table of Contents:

  • MAINTENANCE SAFETY
  • ALPHABETICAL INDEX
  • CONTENTS
    • FOREWORD
    • SAFETY INSTRUCTIONS
    • SERIAL NUMBER LOCATIONS
    • HYDRAULIC EXCAVATOR SERIAL NUMBER
    • ENGINE SERIAL NUMBER
    • DELIVERY REPORT
    • HYDRAULIC EXCAVATOR IDENTIFICATION
  • PREVENTIVE MAINTENANCE
    • MAINTENANCE SAFETY
    • SERVICE SCHEDULE
    • ENGINE COVER
      • Adjustment of the Engine Cover Latch
    • AIR CLEANER SERVICE
      • Daily Check
      • Filter Replacement
    • FUEL SYSTEM
      • Filling the Fuel Tank
      • Fuel Filter
      • Fuel System Maintenance
      • Removing Air From the Fuel System
      • Fuel Specification
    • ENGINE LUBRICATION SYSTEM
      • Checking Engine Oil
      • Replacement of Oil and Filter
    • COOLING SYSTEM
      • Coolant Level
      • Coolant Replacement
      • Propylene Glycol (Factory Installed)
    • ALTERNATOR BELT ADJUSTMENT
    • ELECTRICAL SYSTEM
      • Electrical Relays and Diodes
      • Fuses
      • Service the Electrical System (and Battery)
      • Removal and Installation of the Battery
      • Electric Solenoid (Engine Stop)
    • HYDRAULIC SYSTEM
      • Checking and Adding Fluid
      • Diagnostic Couplers
      • Hydraulic Reservoir
      • Replacement of the Hydraulic Filter
      • Case Drain Hydraulic Filter
    • TRACK TENSION
      • Adjustment
    • FINAL DRIVE CASE
      • Checking Oil Level
      • Draining Final Drive Case
    • JOYSTICK CONTROL CHANGE
      • ISO to Standard Control Pattern
      • Standard to ISO Control Pattern
    • LUBRICATION OF THE HYDRAULIC EXCAVATOR
    • HEATER AIR FILTER (With Cab Option Only)
  • HYDRAULIC SECTION
    • HYDRAULIC SCHEMATICS
    • TROUBLESHOOTING
    • HYDRAULIC SERVICE INFORMATION
      • Checking the Main Relief Valves and Cross Port Relief Valve
      • Checking the Hydraulic Pump
    • HYDRAULIC PUMP
      • Removal and Installation
      • Coupler Removal and Installation
      • Hydraulic Pump Assembly
      • Disassembly
      • Assembly
    • HYDRAULIC CONTROL VALVE
      • Description
      • Removal and Installation
      • Disassembly
      • Outlet Section Disassembly
      • Outlet Section Assembly
      • Mid Inlet Section Disassembly
      • Mid Inlet Section Assembly
      • Left Travel, Right Travel, Auxiliary and Blade Disassembly
      • Left Travel, Right Travel, Auxiliary and Blade Assembly
      • Boom, Bucket Arm and Swing Disassembly
      • Boom, Bucket, Arm and Swing Assembly
      • Utility Block Disassembly
      • Utility Block Assembly
      • Boom Swing Disassembly
      • Boom Swing Assembly
      • Boost Disassembly
      • Boost Assembly
      • Assembly
    • PORT RELIEF VALVES
      • Parts Identification
      • Port Relief Valve Pressure Setting
      • Disassembly
      • Assembly
      • Adjustment Procedure
      • Disassembly
      • Assembly
      • Adjusting the Main Relief Valves
    • ACCUMULATOR
      • Pressure Reducing Valve (Description)
      • Removal and Installation
      • Disassembly (S/N 562313001 – 562320721 &517811001 – 517811977)
      • Assembly (S/N 562313001 – 562320721 & 517811001– 517811977)
      • Parts Identification (S/N 562320721 & Above & 517811978 & Above)
      • Disassembly (S/N 562320721 & Above & 517811978 & Above)
      • Assembly (S/N 562320721 & Above & 517811978 & Above)
      • Testing (All Models)
    • BOOM CYLINDER
      • Removal and Installation
    • ARM CYLINDER
      • Removal and Installation
    • BUCKET CYLINDER
      • Removal and Installation
    • BLADE CYLINDER
      • Removal and Installation
    • BOOM SWING CYLINDER
      • Removal and Installation
    • TRACK FRAME EXPANSION CYLINDER 322 (S/N 517811001 & Above)
    • HYDRAULIC CYLINDER
      • Disassembly
      • Assembly
      • Disassembly
      • Assembly
    • HYDRAULIC FILTER ASSEMBLY
      • Removal and Installation
    • AUXILIARY FLUSH FACE COUPLERS
      • Removal and Installation
    • DRAIN BLOCK
      • Removal and Installation
    • OIL COOLER
      • Removal and Installation
    • JOYSTICK CONTROL CHANGE
      • ISO To Standard
      • Standard to ISO
  • DRIVE SECTION
    • FLOORMAT AND FLOOR PANELS
      • Removal and Installation
    • MICROSWITCH
      • Adjustment
      • Removal and Installation
    • CONSOLE COVER LEFT HAND
      • Removal and Installation
    • JOYSTICK
      • Removal and Installation
    • CONTROL CONSOLE LEFT HAND
      • Removal and Installation
    • FUEL TANK
      • Removal and Installation
    • LOCK LEVER
      • Removal and Installation
      • Adjustment
    • LATCH HOOK
      • Removal and Installation
    • GAS SPRING
      • Removal and Installation
    • UPPER CONSOLE
      • Removal and Installation
    • CONTROL CONSOLE RIGHT HAND
      • Rops Canopy Models
      • Cab Models
    • CONSOLE COVER RIGHT HAND
      • Removal and Installation
    • CONTROL CONSOLE RIGHT HAND
      • Removal and Installation
    • HYDRAULIC RESERVOIR
      • Removal and Installation
    • TRAVEL LEVERS
      • Removal and Installation
      • Disassembly and Assembly
    • PEDAL RIGHT HAND
      • Removal and Installation
      • Disassembly and Assembly
    • PEDAL LEFT HAND
      • Removal and Installation
      • Disassembly and Assembly
    • ROCKERSHAFT
      • Removal and Installation
      • Disassembly and Assembly
    • LINKAGE RODS
      • Removal and Installation
    • BLADE LEVER
      • Removal and Installation
      • Disassembly and Assembly
    • DRIVE MOTOR
      • Removal and Installation
      • Parts Identification
      • Disassembly
      • Assembly
    • JOYSTICK
      • Parts Identification
      • Disassembly
      • Assembly
      • Troubleshooting
  • UPPER WORKS AND SWING SECTION
    • SWING MOTOR
      • Removal and Installation
      • Disassembly
      • Assembly
      • Motor Timing
    • CENTER SWIVEL JOINT (S/N 562313001 – 562319999)
      • Removal and Installation
      • Disassembly and Assembly
    • CENTER SWIVEL JOINT 320 (S/N 562320000 &Above) and 322 (S/N 517811001 & Above)
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Assembly
    • UPPERSTRUCTURE
      • Removal
      • Installation
    • SWING CIRCLE GEAR
      • Removal and Installation
    • ROPS CANOPY
      • Removal and Installation
    • CAB
      • Removal and Installation
      • Door (Removal and Installation)
      • Front Window Removal and Installation
      • Front Lower Window Removal and Installation
      • Front Upper Window Removal and Installation
      • Door Glass (Removal and Installation)
      • Left Hand Side Glass (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
    • AIR BAFFLE (Cab Models Only)
      • Removal and Installation
    • BELLY PAN (Field Installed)
      • Removal and Installation
  • MAIN FRAME AND TRACKS
    • ENGINE COVER
      • Removal and Installation
    • CORNER POSTS
      • Removal and Installation
    • COUNTERWEIGHT
      • Removal and Installation
    • SEAT AND SEAT MOUNT
      • Removal and Installation
    • SPEED CONTROL LEVER/SWING LOCK LEVER AND MOUNTING
      • Removal and Installation
    • BUCKET
      • Removal and Installation
      • Installation
    • ARM
      • Removal and Installation
    • ARM BUSHINGS
      • Arm To Boom Bushing Removal And Installation
      • Arm To Bucket and Bucket Link Bushing Removal and Installation
    • BOOM
      • Removal and Installation
    • BOOM BUSHING
      • Removal And Installation
    • SWING POST
      • Removal and Installation
      • Bushing Replacement
      • Swing Post Bushing Removal
      • Bushing Installation
    • TRACK
      • Adjustment 320 (S/N 562313001 – 562319999)
      • Adjustment 320 (S/N 562320000 & Above) and 322 (S/N 517811001 & Above)
      • Removal and Installation
      • Track Damage Identification and Causes
    • TRACK FRAME
      • Disassembly and Assembly 320 (S/N 562313001 – 562319999)
      • Disassembly and Assembly 320 (S/N 562320000 & Above) and 322 (S/N 517811001 & Above)
      • Recoil Spring Cylinder Disassembly And Assembly
      • Removal and Installation of Expandible Track Frame (322 only)
    • TRACK DAMAGE IDENTIFICATION
      • Cutting of the Steel Cords
      • Abrasion of Embedded Metals
      • Separation of Embedded Metals Due to External Forces
      • Separation of Embedded Metals Due To Corrosion
      • Cuts On The Lug Side
      • Cracks On The Lug Side Rubber Due To Fatigue
      • Lug Abrasion
      • Cracks and Cuts on the Lug Side Rubber at the Edges of the Embedded Metals
      • Abrasion Of The Track Roller Side Rubber Surface
      • Cuts On The Edges Of The Track Roller Side
  • ELECTRICAL SYSTEM
    • ELECTRICAL SCHEMATICS
    • TROUBLESHOOTING
      • Chart
    • ELECTRICAL SYSTEM
      • Description
      • Fuses
      • Electrical System Service
      • Electrical Relays and Diodes
    • BATTERY
      • Using A Booster Battery (Jump Starting)
      • Removal and Installation
    • BATTERY BOX
      • Removal and Installation
    • CAB ELECTRICAL (Cab Option)
      • Removal and Installation
    • ALTERNATOR
      • Checking the Alternator Output
      • Removal and Installation
      • Belt Adjustment
    • STARTER
      • Removal and Installation
      • Disassembly and Assembly
      • Cleaning and Inspection
    • HORN
      • Removal and Installation
    • FUEL LEVEL SENDER
      • Removal and Installation
    • LIGHT SWITCH
      • Removal and Installation
    • TWO SPEED SWITCH
      • Removal and Installation
  • ENGINE SERVICE
    • TROUBLESHOOTING
      • Chart
    • VALVE CLEARANCE
      • Adjustment
    • ENGINE COMPRESSION
      • Checking
    • FUEL SHUTOFF SOLENOID
      • Removal and Installation
      • Timer Module Removal and Installation
    • FUEL INJECTION PUMP
      • Checking the Injection Pump
      • Timing the Injection Pump
    • FUEL INJECTOR NOZZLES
      • Removal and Installation
      • Checking the Injector Nozzle
    • GLOW PLUGS
      • Removal and Installation
      • Checking the Glow Plug
    • BELT GUARD
      • Removal and Installation
    • RADIATOR
      • Removal and Installation
    • SPARK ARRESTOR MUFFLER (If Equipped)
      • Cleaning Spark Chamber
      • Removal and Installation
    • AIR CLEANER
      • Removal and Installation
    • ENGINE
      • Removal and Installation
    • ENGINE FLYWHEEL (EARLY MODELS)
      • Removal and Installation
      • Hydraulic Pump Coupler
    • ENGINE FLYWHEEL (LATER MODELS)
      • Removal And Installation
      • Hydraulic Pump Coupler
      • 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 Idler Gear and Shaft
    • TIMING GEARS
      • Checking Backlash
    • FUEL CAMSHAFT
      • Removal and Installation
    • 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
  • TECHNICAL DATA
    • HYDRAULIC EXCAVATOR SPECIFICATIONS
      • Machine Dimensions
      • SPECIFICATIONS
    • ENGINE SPECIFICATIONS
      • Engine
      • Fuel Injector Nozzles
      • Fuel Injection Pump
      • Cylinder Head
      • Valves
      • Valve Springs
      • Rocker Arms
      • Camshaft
      • Cylinders
      • Piston Rings
      • Pistons
      • Crankshaft
      • Oil Pump
      • Thermostat
      • ENGINE BOLT TORQUE
      • Re–Grinding The Crankshaft
    • HYDRAULIC FLUID SPECIFICATIONS
      • Specifications
    • FUEL, COOLANT AND LUBRICANTS
      • Chart
  • SERVICE MANUAL REVISION
    • 320-1
    • 320-2
    • 320/322-3
    • 320/322-4
    • 320/322-5
    • 320/322-6

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