Bobcat 320, 320L Excavator Service Manual
642 pages · Publication 6903818_11_06
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What's inside
From the manual's own table of contents: 18 sections, 464 entries. See sample pages (PDF, 298 KB)
MAINTENANCE SAFETY
ALPHABETICAL INDEX
FOREWORD7 topics
- SAFETY INSTRUCTIONS
- Fire Prevention
- SERIAL NUMBER LOCATIONS
- Excavator Serial Number
- Engine Serial Number
- DELIVERY REPORT
- BOBCAT EXCAVATOR IDENTIFICATION
SAFETY AND MAINTENANCE
LIFTING AND BLOCKING THE EXCAVATOR54 topics
- Procedure
- UPPERSTRUCTURE SLEW LOCK
- LIFTING THE EXCAVATOR
- OPERATOR CAB ROPS/TOPS (IF EQUIPPED)
- Emergency Exits
- Cab Door
- Front Window Wiper
- Window Washer Reservoir
- Front Window
- Right Side Windows
- TRANSPORTING THE EXCAVATOR
- TAILGATE
- Opening And Closing The Tailgate
- Adjusting The Bumper
- Adjusting The Tailgate Latch
- SERVICE SCHEDULE
- Chart
- AIR CLEANER SERVICE
- Daily Check
- Replacing The Filters
- HEATER AIR FILTERS
- Recirculation Filter
- Fresh Air Filter
- ENGINE COOLING SYSTEM
- Cleaning The Cooling System
- Checking Coolant Level
- Replacing The Coolant
- FUEL SYSTEM
- Fuel Specifications
- Filling The Fuel Tank
- Removing Water From The Fuel Filter
- Replacing The Fuel Filter
- Draining The Fuel Tank
- Removing Air From The Fuel System
- ENGINE LUBRICATION SYSTEM
- Checking Engine Oil
- Oil Chart
- Replacing Oil And Filter
- HYDRAULIC SYSTEM
- Checking And Adding Hydraulic Oil
- Diagnostic Couplers
- Replacing The Hydraulic Filter
- Replacing Hydraulic Oil
- LUBRICATION OF THE HYDRAULIC EXCAVATOR
- TRAVEL MOTOR
- Checking Oil Level
- Draining The Travel Motor
- SPARK ARRESTOR MUFFLER
- ALTERNATOR BELT
- Adjusting The Alternator Belt
- SEAT BELT
- Inspection And Maintenance
- CONTROL CONSOLE LOCKOUTS
- Inspection And Maintenance
HYDRAULIC SYSTEM
HYDRAULIC/HYDROSTATIC SCHEMATICS123 topics
- HYDRAULIC SYSTEM INFORMATION
- Glossary Of Hydraulic/Hydrostatic Symbols For Excavators
- Troubleshooting The Hydraulic Circuit
- Troubleshooting The Cylinder Circuit
- Troubleshooting The Swing (Upperstructure Slew) Circuit
- Troubleshooting The Travel Circuit
- BOOM CYLINDER
- Testing
- Removal and Installation
- Parts Identification
- Disassembly
- Assembly
- ARM CYLINDER
- Testing
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- BOOM SWING CYLINDER
- Testing
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- BUCKET CYLINDER
- Testing
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- BLADE CYLINDER
- Testing
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- MAIN RELIEF VALVE
- Testing And Adjusting The Main Relief Valve
- PORT RELIEF VALVES
- Testing And Adjusting The Port Relief Valve Pressure
- CROSSPORT RELIEF VALVES
- Testing And Adjusting The Crossport Relief Valve
- PRESSURE REDUCING VALVE
- Testing And Adjusting The Pressure Reducing Valve
- HYDRAULIC CONTROL VALVE (320)
- Description
- Removal And Installation
- Parts Identification
- Disassembly
- Auxiliary Valve Section Disassembly And Assembly
- Blade Valve Section Disassembly And Assembly
- Slew Valve Section Disassembly And Assembly
- Left Travel Valve Section Disassembly And Assembly
- Boom Valve Section Disassembly And Assembly
- Bucket Valve Section Disassembly And Assembly
- Arm Valve Section Disassembly And Assembly
- Boom Swing Valve Section Disassembly And Assembly
- Right Travel Valve Section Disassembly And Assembly
- Assembly
- HYDRAULIC CONTROL VALVE (320L)
- Description
- Removal And Installation
- Parts Identification
- Disassembly
- Auxiliary Valve Section Disassembly And Assembly
- Blade Valve Section Disassembly And Assembly
- Slew Valve Section Disassembly And Assembly
- Left Travel Valve Section Disassembly And Assembly
- Boom Valve Section Disassembly And Assembly
- Bucket Valve Section Disassembly And Assembly
- Arm Valve Section Disassembly And Assembly
- Boom Swing Valve Section Disassembly And Assembly
- Right Travel Valve Section Disassembly And Assembly
- Assembly
- HYDRAULIC PUMP
- Testing The Hydraulic Pump
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- MANIFOLD ASSEMBLY/ACCUMULATOR
- Description
- Removal And Installation
- Parts Identification - 320
- Disassembly - 320
- Assembly - 320
- Parts Identification - 320L
- Disassembly - 320L
- Assembly - 320L
- Removal and Installation
- Parts Identification
- Disassembly
- Assembly
- SWIVEL JOINT
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- SWING MOTOR
- Removal and Installation
- Parts Identification
- Disassembly
- Assembly
- RIGHT CONTROL LEVER (JOYSTICK)
- Testing
- Handle Removal And Installation
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- LEFT CONTROL LEVER (JOYSTICK)
- Testing
- Handle Removal And Installation
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- HYDRAULIC FILTER MOUNT
- Removal and Installation
- HYDRAULIC RESERVOIR
- Removal and Installation
- OIL COOLER
- Removal And Installation
UNDERCARRIAGE
BLADE31 topics
- Extension Removal And Installation (320 Only)
- Blade Removal And Installation
- TRACKS
- Track Lug Height
- Track Tension Adjustment
- Removal And Installation
- TRACK FRAME
- Disassembly And Assembly
- Removal And Installation Of Track Frame
- TRACK DAMAGE IDENTIFICATION
- Cutting Of The Steel Cords
- Causes Of The Damage
- Abrasion Of Embedded Metals
- Separation Of Embedded Metals
- Separation Of Embedded Metals Due To Corrosion
- Cuts On The Lug Side Rubber
- Cracks On The Lug Side Rubber Due To Fatigue
- Lug Abrasion
- Cracks And Cuts On The Lug Side Rubber
- Abrasion Of The Track Roller Side
- Cuts On The Edges Of The Track Roller Side
- TRACK IDLER
- Parts Identification
- Disassembly
- Assembly
- TRACK ROLLER
- Parts Identification
- Disassembly
- Assembly
- SWING CIRCLE GEAR
- Removal and Installation
UPPERSTRUCTURE & SWING SECTION
UPPERSTRUCTURE89 topics
- Removal
- Installation
- ROPS CANOPY
- Removal And Installation
- Door Removal And Installation
- Front Window Removal And Installation
- Right Side Rear Sliding Window Removal And Installation
- Right Side Front Sliding Window Removal And Installation
- Glass Removal
- Glass Installation
- SEAT AND SEAT MOUNT
- Removal And Installation
- RIGHT CONSOLE
- Console Cover Removal And Installation (Cab)
- Console Cover Removal And Installation (ROPS Canopy)
- Gas Spring Removal And Installation (ROPS Canopy)
- Lock Lever Removal And Installation (ROPS Canopy)
- Adjustment (ROPS Canopy Models)
- Latch Hook Removal And Installation (ROPS Canopy)
- Latch Hook Disassembly And Assembly (ROPS Canopy)
- Cab Models
- Upper Console Removal And Installation
- Console Base Removal And Installation
- LEFT CONSOLE
- Console Cover Removal And Installation
- Gas Spring Removal And Installation
- Lock Lever Removal And Installation
- Adjustment
- Latch Hook Removal And Installation
- Latch Hook Disassembly And Assembly
- Upper Console Removal And Installation
- Console Base Removal And Installation
- ENGINE SPEED CONTROL
- Removal And Installation
- Engine Speed Control Cable Removal And Installation
- BLADE CONTROL
- Removal and Installation
- Disassembly And Assembly
- SLEW LOCK
- Removal And Installation
- RIGHT PEDAL AND LINKAGE
- Right Pedal Removal And Installation
- Disassembly And Assembly
- Linkage Removal And Installation
- Linkage Disassembly And Assembly
- TRAVEL CONTROLS
- Removal And Installation
- Disassembly And Assembly
- LEFT PEDAL
- Removal And Installation (320 Only)
- Disassembly And Assembly (320 Only)
- CONTROL LINKAGE ASSEMBLY (320)
- Removal And Installation
- Left Pedal Linkage Disassembly And Assembly
- Right Travel Control Linkage Disassembly And Assembly
- Left Travel Control Linkage Disassembly And Assembly
- Linkage Rod Removal And Installation
- Linkage Rod Adjustment
- CONTROL LINKAGE ASSEMBLY (320L)
- Removal And Installation
- Right Travel Control Linkage Disassembly And Assembly
- Left Travel Control Linkage Disassembly And Assembly
- Linkage Rod Removal And Installation
- Linkage Rod Adjustment
- FLOOR MAT AND FLOOR PANELS
- Removal And Installation (320 Only)
- Removal And Installation (320L Only)
- BLADE EXTENSION TRAY
- Removal And Installation (320 Only)
- FUEL TANK
- Removal And Installation
- HORN
- Removal And Installation (Earlier Models)
- Removal And Installation (Later Models)
- SWING FRAME
- Removal And Installation
- Bushing Replacement
- Swing Frame Bushing Removal
- Swing Frame Bushing Installation
- Boom Pivot Bushing Removal And Installation
- BOOM
- Removal And Installation
- Boom Bushing Removal And Installation
- Removal And Installation
- Arm To Boom Bushing Removal And Installation
- Arm To Bucket And Bucket Link Bushing Removal And Installation
- BUCKET
- Removal And Installation
- Latch Removal And Installation
ELECTRICAL SYSTEM AND ANALYSIS
ELECTRICAL SCHEMATICS41 topics
- ELECTRICAL SYSTEM
- Troubleshooting Chart
- Description
- Fuses
- Relays And Diodes
- BATTERY
- Servicing
- Removing And Installing The Battery
- Using A Booster Battery (Jump Starting)
- ALTERNATOR
- Description
- Tests
- Alternator Output Test
- Full Field Test
- Alternator Regulator Test
- Alternator Regulator Test With Voltmeter
- Removal And Installation
- Parts Identification
- Disassembly And Assembly
- STARTER
- Removal And Installation
- Parts Identification
- Disassembly And Assembly
- Cleaning And Inspection
- LIGHTS
- Upperstructure Light Removal And Installation
- Upperstructure Light Disassembly And Assembly
- Boom Light Removal And Installation (320 Only) (Earlier Models)
- Boom Light Disassembly and Assembly (320 Only) (Earlier Models)
- Boom Light Removal And Installation (320 Only) (Later Models)
- Boom Light Bulb Replacement (320 Only) (Later Models)
- Light Switch Removal And Installation
- MICROSWITCH
- Adjustment
- Testing
- Removal And Installation
- TWO-SPEED SWITCH (320 ONLY)
- Removal And Installation
- FUEL LEVEL SENDER
- Removal And Installation
- Testing
ENGINE SERVICE
TROUBLESHOOTING52 topics
- Chart
- Removal And Installation
- AIR CLEANER
- Removal And Installation
- RADIATOR
- Removal And Installation
- ENGINE COMPONENTS AND TESTING
- Valve Clearance Adjustment
- Engine Compression Checking
- Fuel Shut-Off Solenoid Removal And Installation
- Fuel Shut-Off Timer Removal And Installation
- Fuel Injection Pump Check
- Fuel Injection Pump Removal And Installation
- Fuel Injection Pump Timing
- Fuel Injector Removal And Installation
- Fuel Injector Checking
- Glow Plug Removal And Installation
- ENGINE
- Removal And Installation
- ENGINE FLYWHEEL
- Removal And Installation
- Hydraulic Pump Coupler Removal And Installation
- Hydraulic Pump Coupler Disassembly And Assembly
- Flywheel Ring Gear
- RECONDITIONING THE ENGINE
- Cylinder Head Removal And Installation
- Cylinder Head Disassembly And Assembly
- Cylinder Head, Servicing
- Cylinder Head Top Clearance
- Valve Guide, Checking
- Valve And Valve Seat Reconditioning
- Valve Spring
- Rocker Arm And Shaft, Checking
- Timing Gearcase Cover Removal And Installation
- Idler Gear And Camshaft Removal And Installation
- Idler Gear and Shaft, Servicing
- Timing Gears Checking Backlash
- Fuel Camshaft Removal And Installation
- Fuel Camshaft Governor
- Crankshaft Gear Removal And Installation
- Oil Pump Removal And Installation
- Oil Pump, Service
- Engine Oil Pressure, Checking
- Relief Valve
- Piston And Connecting Rod Removal And Installation
- Piston And Connecting Rod, Servicing
- Connecting Rod Alignment
- Crankshaft And Bearings Removal And Installation
- Crankshaft And Bearings, Servicing
- Cylinder Bore, Checking
- Water Pump Removal And Installation
- Water Pump Disassembly And Assembly
HEATER1 topic
- Removal And Installation
SPECIFICATIONS46 topics
- 320/320L Excavator Machine Dimensions
- Performance
- Controls
- Engine
- Hydraulic System
- Hydraulic Cylinders
- Hydraulic Cycle Times
- Drive System
- Undercarriage
- Track
- Electrical
- ENGINE SPECIFICATIONS
- Engine
- Fuel Injector Nozzles
- Fuel Injection Pump
- Cylinder Head
- Valves
- Valve Springs
- Rocker Arms
- Camshaft
- Cylinders
- Piston Rings
- Pistons
- Connecting Rods
- Crankshaft
- Oil Pump
- Thermostat
- Engine Bolt Torque
- Crankshaft Re-Grind Data
- TORQUE SPECIFICATIONS
- 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
- O-ring Flare Fitting
- Port Seal Fitting
- HYDRAULIC FLUID SPECIFICATIONS
- Specifications
- FUEL, COOLANT AND LUBRICANTS
- Chart
- CONVERSIONS
- Decimal And Millimeter Equivalents
- U.S. To Metric Conversion
Revision No: 320-12 topics
- Revision No: 320-2
- Revision No: 320-3
Inside this manual
Real pages from this service manual (642 pages). Open the sample pages (PDF, 298 KB)
- Diagram, page 415: CAB (CONT’D)
- Repair procedure, page 460: SLEW LOCK
- Specifications, page 613: SPECIFICATIONS (CONT’D)
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 320, 320L are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
This manual: Service Manual 6903818_11_06$69.87
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This is a service manual
Here's how it compares to the other manual types.
This manual
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 642 pages
Quantity one is the manual described above.
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Other editions and similar models
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