Bobcat A770 All-Wheel Skid Steer Loader Service Manual
788 pages · Publication 6989480_1_11
Fast free USA shippingShips in 1 business daySave 10% on 2 manuals, 15% on 3 or morePay by credit or debit card or with PayPal. No PayPal account needed.
Added to your cart. View cart
- Models
- A770
- Serial coverage
- SN A3P611001 & above, SN A3P711001 & above
- Manual type
- Service Manual
- Pages
- 788
- Publication
- 6989480_1_11
- Condition
- Brand new
What's inside
From the manual's own table of contents: 21 sections, 668 entries. See sample pages (PDF, 422 KB)
MAINTENANCE SAFETY
FOREWORD16 topics
- SAFETY INSTRUCTIONS
- FIRE PREVENTION
- Maintenance
- Operation
- Electrical
- Hydraulic System
- Fueling
- Starting
- Spark Arrestor Exhaust System
- Welding And Grinding
- Fire Extinguishers
- SERIAL NUMBER LOCATIONS
- Loader Serial Number
- Engine Serial Number
- DELIVERY REPORT
- LOADER IDENTIFICATION
SAFETY & MAINTENANCE
LIFTING AND BLOCKING THE LOADER83 topics
- Procedure
- LIFT ARM SUPPORT DEVICE
- Installing
- Removing
- OPERATOR CAB
- Description
- Raising
- Lowering
- Cab Door Sensor
- Special Applications Kit
- Special Applications Kit Inspection And Maintenance
- Forestry Door And Window Kit
- Forestry Door And Window Kit Inspection And Maintenance
- TRANSPORTING LOADER ON A TRAILER
- Loading And Unloading
- Fastening
- TOWING THE LOADER
- Procedure
- REMOTE START TOOL KIT-MEL1563
- Remote Start Tool - MEL1563
- Service Tool Harness Communicator - MEL1566
- Remote Start Procedure
- REMOTE START TOOL (SERVICE TOOL) KIT - 7003031
- Description
- Remote Start Tool (Service Tool) - 7003030
- Loader Service Tool Harness - 6689747
- Computer Service Tool Harness - 6689746
- Remote Start Procedure
- SERVICE SCHEDULE
- Chart
- AIR CLEANER SERVICE
- Replacing Filter Elements
- ENGINE COOLING SYSTEM
- Maintenance Platform
- Cleaning
- Checking Level
- Removing And Replacing Coolant
- FUEL SYSTEM
- Fuel Specifications
- Biodiesel Blend Fuel
- Filling The Fuel Tank
- Fuel Filter
- Removing Air From The Fuel System
- ENGINE LUBRICATION SYSTEM
- Checking And Adding Engine Oil
- Engine Oil Chart
- Removing And Replacing Oil And Filter
- HYDRAULIC / HYDROSTATIC SYSTEM
- Checking And Adding Fluid
- Hydraulic / Hydrostatic Fluid Chart
- Removing And Replacing Hydraulic Fluid
- Removing And Replacing Hydraulic / Hydrostatic Filter
- Removing And Replacing Steering Filter
- Removing And Replacing Hydraulic Charge Filter
- Breather Cap
- FINAL DRIVE TRANSMISSION (CHAINCASE)
- Checking And Adding Oil
- Removing And Replacing Oil
- BOB-TACH (HAND LEVER)
- Inspection And Maintenance
- BOB-TACH (POWER)
- Inspection And Maintenance
- LUBRICATING THE LOADER
- Lubrication Locations
- TIRE MAINTENANCE
- Wheel Nuts
- Rotating
- Mounting
- SPARK ARRESTER MUFFLER
- Cleaning Procedure
- PIVOT PINS
- Inspection And Maintenance
- LOADER STORAGE AND RETURN TO SERVICE
- Storage
- Return To Service
- STOPPING THE ENGINE AND LEAVING THE LOADER
- Procedure
- EMERGENCY EXIT
- External Access
- Rear Window
- Front Door
- SEAT BELT
- Inspection And Maintenance
HYDRAULIC SYSTEM
HYDRAULIC / HYDROSTATIC SCHEMATICS118 topics
- HYDRAULIC SYSTEM INFORMATION
- Glossary Of Hydraulic / Hydrostatic Symbols
- Troubleshooting
- CYLINDER (LIFT)
- Testing
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- CYLINDER (TILT)
- Testing
- Removal And Installation
- Base End Pivot Pin Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- CYLINDER (BOB-TACH)
- Testing
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- CYLINDER (STEERING)
- Testing
- Removal And Installation (Front)
- Removal And Installation (Rear)
- Parts Identification
- Disassembly
- Assembly
- MAIN RELIEF VALVE
- Description
- Testing
- Adjusting
- Removal And Installation
- HYDRAULIC CONTROL VALVE
- Description
- Removal And Installation
- Actuator Removal And Installation (In Loader)
- Actuator Removal And Installation (Out Of Loader)
- Identification Chart
- Mount Bracket Removal And Installation
- Lift Load Check Valve Removal And Installation
- Load Check Valve Removal And Installation (Tilt And Auxiliary)
- Anti-Cavitation Valve Removal And Installation (Lift, Rod End)
- Port Relief / Anti-Cavitation Valve Removal And Installation (Lift, Base End)
- Port Relief / Anti-Cavitation Valve Removal And Installation (Tilt, Base End)
- Port Relief / Anti-Cavitation Valve Removal And Installation (Tilt, Rod End)
- Port Relief Valve Removal And Installation (Auxiliary)
- Plug Removal And Installation
- End Cap Block Removal And Installation
- Lift Spool Removal And Installation
- Tilt Spool Removal And Installation
- Auxiliary Spool Removal And Installation
- Auxiliary Solenoid Removal And Installation
- Solenoid Removal And Installation
- Lock Valve Removal And Installation
- Lift Arm Bypass Orifice Inspection
- Main Relief Valve Removal And Installation
- Check Valve Removal And Installation
- LIFT ARM BYPASS CONTROL VALVE
- Description
- Testing
- Removal And Installation
- Bracket Removal And Installation
- Disassembly And Assembly
- HYDRAULIC PUMP
- Description
- Pump Test At Quick Couplers
- Direct Pump Test (Standard Section)
- Direct Pump Test (Charge Section)
- Direct Pump Test (Steering Section)
- Removal And Installation
- Hydraulic Pump Startup
- Parts Identification
- Disassembly And Assembly
- HYDRAULIC PUMP (HIGH FLOW)
- Description
- Pump Test At Quick Couplers
- Direct Pump Test (Standard Section)
- Direct Pump Test (Charge Section)
- Direct Pump Test (High Flow Section)
- High Flow Relief Valve Adjustment
- High Flow Relief Valve Removal And Installation
- Direct Pump Test (Steering Section)
- Solenoid Removal And Installation
- Removal And Installation
- Hydraulic Pump Startup
- Parts Identification
- Disassembly And Assembly
- HYDRAULIC / HYDROSTATIC FILTERS
- Description
- Housing Removal And Installation
- HYDRAULIC FLUID RESERVOIR
- Description
- Removal And Installation
- Hydraulic Fluid Screen
- OIL COOLER
- Description
- Removal And Installation
- BUCKET POSITION VALVE
- Description
- Solenoid Removal And Installation
- Solenoid Testing
- Removal And Installation
- Disassembly And Assembly
- REAR AUXILIARY DIVERTER VALVE
- Description
- Solenoid Testing
- Removal And Installation
- Disassembly And Assembly
- BOB-TACH (POWER) BLOCK
- Description
- Removal And Installation
- Disassembly And Assembly
- FRONT AUXILIARY HYDRAULIC COUPLER BLOCK
- Description
- Removal And Installation
- Disassembly And Assembly
HYDROSTATIC SYSTEM
HYDROSTATIC SYSTEM INFORMATION45 topics
- Troubleshooting
- Description
- HYDROSTATIC MOTOR (TWO-SPEED)
- Description
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- HYDROSTATIC MOTOR CARRIER (SJC)
- Description
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- CHARGE PRESSURE
- Description
- Testing
- Sender Removal And Installation
- Adjusting
- HYDROSTATIC PUMP (SJC)
- Description
- Hydraulic Controller Removal And Installation
- Removal And Installation
- Hydrostatic Pump Start Up
- Parts Identification
- High Pressure Relief And Bypass Valve
- Charge Relief Valve
- Disassembly
- Inspection
- Assembly
- Mechanical Neutral Adjustment
- Hydraulic Controller Neutral Adjustment
- DRIVE BELT
- Belt Adjustment
- Belt Replacement
- Stop Adjustment
- Tensioner Pulley Removal And Installation
- Tensioner Pulley Disassembly And Assembly
- TWO-SPEED / BRAKE VALVE
- Description
- Valve Block Removal And Installation
- Valve Block Disassembly And Assembly
- DRAIN MANIFOLD
- Description
- Drain Manifold Removal And Installation
DRIVE SYSTEM
BRAKE21 topics
- Description
- STEERING BLOCK
- Description
- Identification
- Removal And Installation
- Disassembly And Assembly
- DRIVE COMPONENTS
- Description
- Axle Seal Removal And Installation
- Axle, Sprocket And Bearings Removal And Installation
- Chain Removal And Installation
- CHAINCASE
- Description
- Front Cover Removal And Installation
- Center Cover Removal And Installation
- Rear Cover Removal And Installation
- Description
- Removal
- Installation
- Disassembly
- Assembly
MAINFRAME
SEAT BAR69 topics
- Description
- Removal And Installation
- Disassembly And Assembly
- Compression Spring Disassembly And Assembly
- Gas Spring Removal And Installation
- Gas Spring Bracket Disassembly And Assembly
- Removal And Installation
- OPERATOR SEAT (SUSPENSION)
- Removal And Installation
- Slide Rail Removal And Installation
- Seat Belt Removal And Installation
- Lower Cushion Removal
- Lower Cushion Installation
- Back Cushion Removal And Installation
- Shock Removal And Installation
- 3-Point Seat Belt Removal And Installation
- Description
- Removal And Installation
- Lever And Wedge Disassembly And Assembly
- Pivot Pin Bushing And Seal Removal And Installation
- Description
- Removal And Installation
- Lever And Wedge Disassembly And Assembly
- Pivot Pin Bushing And Seal Removal And Installation
- LIFT ARMS
- Stabilizer Bar Removal And Installation
- Link Removal And Installation
- Removal And Installation
- REAR GRILLE
- Removing
- Installing
- REAR DOOR (TAILGATE)
- Removal And Installation
- Striker Removal And Installation
- Striker Adjusting
- Latch Removal And Installation
- FUEL TANK
- Removal And Installation
- Fuel Level Sender Removal And Installation
- Fuel Fill Screen Removal And Installation
- FLOOR PAN
- Floor Pan Removal And Installation
- CONTROL PANEL
- Description
- Removal And Installation
- JOYSTICK CONTROL
- Description
- Joystick Testing
- Joystick Removal And Installation
- ACCESS PANEL (INSIDE)
- Removal And Installation (Left)
- Removal And Installation (Right)
- ACCESS PANEL (INSIDE) (SJC)
- Removal And Installation (Left)
- Removal And Installation (Right)
- WINDOW (REAR)
- Removal And Installation
- Disassembly And Assembly
- WINDOW (TOP)
- Removal And Installation
- WINDOW (SIDE)
- Removal And Installation
- CAB DOOR
- Description
- Removal And Installation
- Disassembly And Assembly
- Aligning
- Adjusting
- Checking Operation
ELECTRICAL SYSTEM & ANALYSIS
ELECTRICAL SCHEMATICS130 topics
- ELECTRICAL SYSTEM INFORMATION
- Glossary Of Electrical Symbols
- Cab Harness Connectors
- Mainframe Harness Connectors
- Description
- Troubleshooting
- Fuse And Relay Location / Identification
- Solenoid Testing
- BATTERY
- Removal And Installation
- Servicing
- Using A Booster Battery (Jump Starting)
- ALTERNATOR
- Belt Adjustment
- Belt Replacement
- Charging System Inspection
- Alternator Voltage Testing
- Low Voltage Testing
- High Voltage Testing
- Removal And Installation
- Parts Identification
- STARTER
- Testing
- Removal And Installation
- Parts Identification
- INSTRUMENT PANELS
- Left Panel
- Display Screen
- Right Panel (Standard Key Panel)
- Right Panel (Keyless Start Panel)
- Right Panel (Deluxe Instrumentation Panel)
- Left Switch Panel
- Right Switch Panel
- Left Side Lower Panel
- Right Side Lower Panel
- Left Panel Removal And Installation
- Right Panel Removal And Installation
- Key Switch Disassembly And Assembly
- Alarm Disassembly And Assembly
- Left Switch Panel Removal And Installation
- Right Switch Panel Removal And Installation
- LIGHTS
- Front Removal And Installation
- Rear Removal And Installation
- Cab Light Removal And Installation
- BOBCAT CONTROLLERS (GATEWAY AND AUXILIARY)
- Description
- Connector Identification
- Removal And Installation
- BOBCAT CONTROLLER (ACS)
- Description
- Connector And Wire Identification
- Removal And Installation
- BOBCAT CONTROLLER (DRIVE PLUS)
- Description
- Connector Identification
- Removal And Installation
- SPEED SENSORS
- Description
- Testing
- Removal And Installation
- DIAGNOSTIC SERVICE CODES
- Viewing Service Codes
- Service Codes List
- BOBCAT INTERLOCK CONTROL SYSTEM (BICS™)
- Description
- Inspecting The BICS™ (Engine STOPPED - Key ON)
- Inspecting Deactivation Of The Auxiliary Hydraulics System (Engine STOPPED - Key ON)
- Inspecting The Seat Bar Sensor (Engine RUNNING)
- Inspecting The Traction Lock (Engine RUNNING)
- Inspecting The Lift Arm Bypass Control
- Inspecting Deactivation Of Lift And Tilt Functions (SJC)
- Troubleshooting
- SEAT BAR SENSOR
- Description
- Troubleshooting
- Testing
- Removal And Installation
- Bobcat Interlock Control System (BICS™) Circuit Test
- TRACTION LOCK
- Description
- Troubleshooting
- Inspecting
- ELECTRICAL / HYDRAULIC CONTROLS (SJC)
- Identification Chart
- Description
- Identification Chart ACD Group 0
- Identification Chart ACD Group 1
- Identification Chart ACD Group 2
- Identification Chart ACD Group 3
- SERVICE PC (LAPTOP COMPUTER)
- Connecting Remote Start Tool
- Connecting Remote Start Tool (Service Tool)
- CALIBRATION
- Description
- Actuator Testing
- Lift And Tilt Calibration
- Hydrostatic Pump Calibration
- STEERING DRIFT COMPENSATION
- Description
- Operation
- FLYWHEEL RPM SENSOR
- Description
- Removal
- Installation
- CONTROL PANEL SETUP
- Right Panel Setup (Deluxe Instrumentation Panel)
- PASSWORD SETUP (DELUXE INSTRUMENTATION PANEL)
- Password Description
- Changing The Owner Password
- Changing The User Passwords
- Password Lockout Feature
- PASSWORD SETUP (KEYLESS START PANEL)
- Password Description
- Changing The Owner Password
- Password Lockout Feature
- MAINTENANCE CLOCK
- Description
- Setup
- Reset
- BACK-UP ALARM SYSTEM
- Description
- Inspecting
- Troubleshooting
- Alarm Removal And Installation
- FRONT HORN
- Description
- Inspecting
- Front Horn Removal And Installation
- Troubleshooting
ENGINE SERVICE
ENGINE INFORMATION91 topics
- Description
- Specifications
- Torque Values
- Troubleshooting
- Engine Removal And Installation
- Engine Mount Replacement
- Compression - Checking
- ENGINE SPEED CONTROL (HAND)
- Removal And Installation
- Disassembly And Assembly
- Cable Removal And Installation
- ENGINE SPEED CONTROL (FOOT)
- Removal And Installation
- Disassembly And Assembly
- MUFFLER
- Removal And Installation
- AIR CLEANER
- Housing Removal And Installation
- Radiator Removal And Installation
- Hydraulic Fan Description
- Fan Duct Removal And Installation
- Hydraulic Fan Motor Assembly Removal And Installation
- Hydraulic Fan Motor Removal And Installation
- Hydraulic Fan Motor Disassembly And Assembly
- Blower Housing Removal And Installation
- Water Pump Removal And Installation
- Water Pump Disassembly And Assembly
- Thermostat Housing Removal And Installation
- Thermostat - Checking
- LUBRICATION SYSTEM
- Oil Pan Removal And Installation
- Oil Pump Removal And Installation
- Oil Pump Inspection
- Oil Filter Cooler Removal And Installation
- Engine Oil Pressure - Testing
- Fuel Shutoff Solenoid - Checking
- Fuel Shutoff Solenoid Removal And Installation
- Fuel Injection Pump Assembly Removal
- Fuel Injection Pump Assembly Installation
- Governor Housing Disassembly And Assembly
- Governor Disassembly And Assembly
- Fuel Camshaft Removal And Installation
- Fuel Injection Pump Removal
- Fuel Injection Pump Installation
- Injection Pump - Timing
- Fuel Injector Removal And Installation
- Fuel Injector Nozzle Pressure - Checking
- Nozzle Spraying Condition
- Valve Seat Tightness
- CYLINDER HEAD
- Intake Air Heater - Testing
- Intake Air Heater Removal And Installation
- Valve Clearance Adjustment
- Valve Timing - Checking
- Cylinder Head Removal And Installation
- Cylinder Head Disassembly And Assembly
- Cylinder Head - Servicing
- Cylinder Head Top Clearance
- Valve Guide - Checking
- Reconditioning The Valve And Valve Seat
- Valve Spring
- Valve Tappets
- Rocker Arm And Shaft - Checking
- Push Rod Alignment - Checking
- CRANKSHAFT AND PISTONS
- Piston And Connecting Rod Removal And Installation
- Piston And Connecting Rod - Servicing
- Cylinder Bore - Checking
- Connecting Rod Alignment
- Crankshaft Gear Removal And Installation
- Crankshaft And Bearings Removal
- Crankshaft And Bearings Installation
- Crankshaft And Bearings - Servicing
- CAMSHAFT AND TIMING GEArS
- Timing Gearcase Cover Removal And Installation
- Timing Gears Backlash - Checking
- Idler Gear And Camshaft Removal And Installation
- Camshaft - Servicing
- Idler Gear And Shaft - Servicing
- TURBOCHARGER
- Description
- Testing
- Removal And Installation
- FLYWHEEL AND HOUSING
- Flywheel Removal And Installation
- Ring Gear Removal And Installation
- Housing Removal And Installation
- EXHAUST GAS RECIRCULATION (EGR) SYSTEM
- Description
- Testing
- Removal And Installation
HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
AIR CONDITIONING SYSTEM FLOW53 topics
- Description
- Chart
- Components
- Safety Equipment
- REGULAR MAINTENANCE
- Filters
- Belt Adjustment
- Belt Replacement
- Condenser
- Air Conditioning Lubrication
- Air Conditioning Service Chart
- Evaporator / Heater Coil
- Blower Motor Does Not Operate
- Blower Motor Operates Normally, But Air Flow Is Insufficient
- Insufficient Cooling Although Air Flow And Compressor Operation Are Normal
- The Compressor Does Not Operate At All, Or Operates Improperly
- Gauge Pressure Related Troubleshooting
- Troubleshooting Tree
- Temperature / Pressure Chart
- Poor A/C Performance
- HVAC Repair And Leaks
- Electrical System
- Engine Coolant Bypassing The Heater Valve
- Heater Valve Not Opening Or Closing
- SYSTEM CHARGING AND RECLAMATION
- Refrigerant Identification
- Reclamation And Charging With Recovery / Charging Unit
- COMPRESSOR
- Removal And Installation
- Oil Check
- CONDENSER
- Removal And Installation
- RECEIVER / DRIER
- Receiver / Drier Removal And Installation
- Pressure Relief Valve Removal And Installation
- Pressure Switch Removal And Installation
- Schrader® Valve Removal And Installation
- EVAPORATOR / HEATER UNIT
- Removal And Installation
- THERMOSTAT
- Description
- Removal And Installation
- EXPANSION VALVE
- Removal And Installation
- EVAPORATOR COIL
- Removal And Installation
- HEATER COIL
- Removal And Installation
- BLOWER FAN
- Removal And Installation
- Disassembly And Assembly
- HEATER VALVE
- Removal And Installation
SPECIFICATIONS
(A770) LOADER SPECIFICATIONS21 topics
- Machine Dimensions
- Performance
- Engine
- Drive System
- Controls
- Hydraulic System
- Electrical System
- Capacities
- Tires
- TORQUE SPECIFICATIONS FOR BOLTS
- Torque For General SAE Bolts
- Torque For General Metric Bolts
- HYDRAULIC CONNECTION SPECIFICATIONS
- Straight Thread O-ring Fitting
- Flare Fitting
- Tubelines And Hoses
- HYDRAULIC / HYDROSTATIC FLUID SPECIFICATIONS
- Specifications
- CONVERSIONS
- Decimal And Millimeter Equivalent Chart
- U.S. To Metric Conversion Chart
ALPHABETICAL INDEX
Inside this manual
Real pages from this service manual (788 pages). Open the sample pages (PDF, 421 KB)
- Diagram, page 46: REMOTE START TOOL (SERVICE TOOL) KIT -
- Troubleshooting, page 586: FRONT HORN (CONT’D)
- Specifications, page 706: EXHAUST GAS RECIRCULATION (EGR) SYSTEM
- Foldout diagram, page 455: WIRE CATEGORIES FOR COLORS AND NUMBER RANGE
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the A770 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 6989480_1_11$79.79
Added to your cart. View cart
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, 788 pages
Quantity one is the manual described above.
Fast free USA shipping
Ships in 1 business day.
60-day returns
Free if the mistake is ours. A manual ordered in error must come back unopened in its shrink-wrap; you pay return shipping and a 20% restocking fee applies. Return policy
Binder not included
Manuals over about 300 pages may need a standard 3-ring binder, which you can buy locally to keep the pages organized for shop use.
Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).