A Bobcat S550 like this is a farm and jobsite mule. It handles dirt work, grading, manure, snow, pallet forks, the usual loader chores. The person grabbing this service manual is the one who actually turns wrenches when the machine quits, seeps oil, or throws a code. They're trying to get from "it's down" to "it's back working Monday" without guessing on hydraulic tests or tear-down order.
What this manual helps you do
- Diagnose hydraulic problems by checking charge and main pressures and tracing leaks in the loader and drive circuits
- Follow step-by-step removal and installation of pumps, drive motors, cylinders, and Bob-Tach components
- Rebuild or reseal major components like lift/tilt cylinders, control valves, and hydrostatic parts with proper sequences and specs
- Troubleshoot electrical issues using full wiring diagrams, connector callouts, and test procedures for sensors and switches
- Set and verify adjustments on linkages, controls, parking brake, and chaincase components after repairs
Who this is for
This manual is for anyone working on an S550 skid-steer with serial number AZN911001 through AZN999999: small contractors, farm owners, shop mechanics, and rental fleets. If you just want operating tips, safety info, or basic maintenance intervals, you want the operator's handbook instead, not this service manual.
FAQ
Q: Is this a searchable PDF and are the wiring diagrams readable?
A: Yes, it's a PDF you can search by keyword, and the schematics are clear enough to zoom in and follow wires and pin numbers.
Q: How do I know if it fits my exact S550?
A: Check your serial plate. If your S550 serial number falls between AZN911001 and AZN999999, this is the right manual.
Q: Is this the right thing if I'm doing my own repairs for the first time?
A: If you're comfortable with tools and want real repair procedures and specs, this is the book you want. It's not a beginner "how to run a skid steer" guide.
Bottom line: If your S550's serial is in that AZN911001-AZN999999 range and you plan to actually tear into it, this is the correct service manual. If not, skip it.
📘 Show Index
Table of Contents:
- MAINTENANCE SAFETY
- CONTENTS
- FOREWORD
- FOREWORD
- SAFETY INSTRUCTIONS
- FIRE PREVENTION
- Maintenance
- Operation
- Electrical
- Hydraulic System
- Fueling
- Starting
- Spark Arrester Exhaust System
- Welding And Grinding
- Fire Extinguishers
- SERIAL NUMBER LOCATIONS
- Loader Serial Number
- Engine Serial Number
- DELIVERY REPORT
- LOADER IDENTIFICATION
- SAFETY AND MAINTENANCE
- LIFTING AND BLOCKING THE LOADER
- LIFT ARM SUPPORT DEVICE
- Description
- 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 THE LOADER ON A TRAILER
- Loading And Unloading
- Fastening
- TOWING THE LOADER
- REMOTE START TOOL KIT – MEL1563
- Remote Start Tool – MEL1563
- Service Tool Harness Communicator – MEL1566
- Remote Start Procedure
- REMOTE START TOOL (SERVICE TOOL) KIT – 7217666
- Description
- Remote Start Tool (Service Tool) – 7022042
- Loader Service Tool Harness – 6689747
- Computer Service Tool Harness – 6689746
- Remote Start Procedure
- SERVICE SCHEDULE
- ENGINE AIR CLEANER
- ENGINE COOLING SYSTEM (EARLIER MODELS)
- Maintenance Platform
- Cooling System Identification
- Cleaning
- Checking And Adding Coolant
- Removing And Replacing Coolant
- ENGINE COOLING SYSTEM (LATER MODELS)
- Maintenance Platform
- Cleaning
- Checking And Adding Coolant
- 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 (EARLIER MODELS)
- Checking And Adding Fluid
- Hydraulic / Hydrostatic Fluid Chart
- Removing And Replacing Hydraulic Fluid
- Removing And Replacing Hydraulic / Hydrostatic Filter
- Removing And Replacing Hydraulic Charge Filter
- Replacing Reservoir Breather Cap
- HYDRAULIC / HYDROSTATIC SYSTEM (LATER MODELS)
- Checking And Adding Fluid
- Hydraulic / Hydrostatic Fluid Chart
- Removing And Replacing Hydraulic Fluid
- Removing And Replacing Hydraulic / Hydrostatic Filter
- Removing And Replacing Hydraulic Charge Filter
- Replacing Reservoir Breather Cap
- FINAL DRIVE TRANSMISSION (CHAINCASE)
- Checking And Adding Fluid
- Removing And Replacing Fluid
- BOB-TACH (HAND LEVER)
- Inspection And Maintenance
- BOB-TACH (POWER)
- Inspection And Maintenance
- LUBRICATING THE LOADER
- TIRE MAINTENANCE
- Wheel Nuts
- Rotating
- Mounting
- SPARK ARRESTER MUFFLER
- PIVOT PINS
- Inspection And Maintenance
- LOADER STORAGE AND RETURN TO SERVICE
- Storage
- Return To Service
- STOPPING THE ENGINE AND LEAVING THE LOADER
- EMERGENCY EXIT
- Rear Window Identification
- Rear Window Removal (Latches)
- Rear Window Removal (Rubber Cord)
- External Access (Rear Window With Latches)
- External Access (Rear Window With Rubber Cord)
- Front Door
- SEAT BELT
- Inspection And Maintenance
- HYDRAULIC SYSTEM
- HYDRAULIC / HYDROSTATIC SCHEMATICS
- 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 (LIFT) (AZN811740 & ABOVE)
- Testing
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- CYLINDER (TILT) (AZN811740 & ABOVE)
- 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
- MAIN RELIEF VALVE
- Description
- Testing
- Adjusting
- Removal And Installation
- HYDRAULIC CONTROL VALVE (STANDARD)
- Description
- Removal And Installation
- Mount Bracket Removal And Installation
- Identification Chart
- 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
- Plug Removal And Installation
- Rubber Boot Removal And Installation
- End Cap Block Removal And Installation
- Lift Spool And Detent 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 Removal And Installation
- Main Relief Valve Removal And Installation
- Check Valve Removal And Installation
- HYDRAULIC CONTROL VALVE (ACS) OR (SJC)
- 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
- Plug Removal And Installation
- End Cap Block Removal And Installation
- Lift Spool Removal And Installation
- Lift Spool Disassembly And Assembly
- 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 Removal And Installation
- 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)
- 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
- 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 (EARLIER MODELS)
- Description
- Removal And Installation
- OIL COOLER (LATER MODEL)
- 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 (S/N A3NL11001 – A3NL12242)
- Description
- Removal And Installation
- Disassembly And Assembly
- BOB-TACH (POWER) BLOCK (S/N A3NL12243 & ABOVE)
- Description
- Testing Relief Valve
- Removal And Installation
- Disassembly And Assembly
- FRONT AUXILIARY HYDRAULIC COUPLER BLOCK
- Description
- Removal And Installation
- Disassembly And Assembly (FFI/FI)
- Disassembly And Assembly (FFH/FH)
- AUTOMATIC RIDE CONTROL
- Description
- Removal And Installation
- Checking The Pressure In The Accumulator
- Adding Nitrogen To The Accumulator
- HYDROSTATIC SYSTEM
- HYDROSTATIC SYSTEM INFORMATION
- Description
- Troubleshooting
- HYDROSTATIC DRIVE MOTOR
- Description
- Removal And Installation
- Parts Identification
- Disassembly And Assembly
- HYDROSTATIC DRIVE MOTOR (TWO-SPEED)
- Description
- Removal And Installation (Left Side)
- Removal And Installation (Right Side)
- Parts Identification
- Disassembly
- Assembly
- HYDROSTATIC MOTOR CARRIER
- Description
- Shaft Seal Removal And Installation
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- HYDROSTATIC MOTOR CARRIER (TWO-SPEED)
- Description
- Shaft Seal Removal And Installation
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- CHARGE PRESSURE
- Description
- Testing
- Adjusting
- Sender Removal And Installation
- HYDROSTATIC PUMP
- Description
- Removal And Installation
- Hydrostatic Pump Startup
- Replenishing / High Pressure Relief Valve Removal And Installation
- Parts Identification (Left Half)
- Parts Identification (Right Half)
- Disassembly
- Assembly
- HYDROSTATIC PUMP (SJC)
- Description
- Hydraulic Controller Removal And Installation
- Removal And Installation
- Hydrostatic Pump Startup
- Parts Identification
- High Pressure Relief And Bypass Valve
- Charge Relief Valve
- Disassembly And Assembly
- Mechanical Neutral Adjustment
- Hydraulic Controller Neutral Adjustment
- HYDROSTATIC PUMP (SJC) (S/N A3NL13651 & ABOVE)
- Description
- Port Locations And Gauge Installation
- Removal And Installation
- Hydrostatic Pump Startup
- Parts Identification
- High Pressure Relief And Bypass Valve
- Charge Pressure Relief Valve
- Disassembly And Assembly
- Mechanical Neutral Adjustment
- Hydraulic Controller Neutral Adjustment
- DRIVE BELT
- Belt Adjustment
- Belt Replacement
- TWO-SPEED
- Valve Block Removal And Installation
- Valve Block Disassembly And Assembly
- DRAIN MANIFOLD
- Description
- Drain Manifold Removal And Installation
- DRIVE SYSTEM
- BRAKE
- Description
- Disc Removal And Installation
- 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
- MAINFRAME
- SEAT BAR
- Description
- Removal And Installation
- Disassembly And Assembly
- Compression Spring Disassembly And Assembly
- OPERATOR CAB
- Gas Spring Removal And Installation
- Gas Spring Bracket Disassembly And Assembly
- Removal And Installation
- OPERATOR SEAT
- Removal And Installation
- Seat Belt Removal And Installation (Retractable)
- Seat Belt And Bracket Removal And Installation (Standard)
- Seat Belt Bracket 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
- BOB-TACH (HAND LEVER)
- Description
- Removal And Installation
- Lever And Wedge Disassembly And Assembly
- Pivot Pin Bushing And Seal Removal And Installation
- BOB-TACH (POWER)
- Description
- Removal And Installation
- Lever And Wedge Disassembly And Assembly
- Pivot Pin Bushing And Seal Removal And Installation
- LIFT ARMS
- REAR GRILLE
- REAR DOOR (TAILGATE)
- Removal And Installation
- Striker Removal And Installation
- Striker Disassembly And Assembly
- Striker Adjusting
- Latch Removal And Installation
- FUEL TANK
- Removal And Installation
- Fuel Level Sender Removal And Installation
- Fuel Fill Screen Removal And Installation
- CONTROL PEDALS AND LINKAGES
- Description
- Pedal Removal And Installation
- Linkage Removal And Installation
- Pedal (Adjusting)
- Floor Pan Removal And Installation
- CONTROL PEDALS AND LINKAGES (ACS)
- Description
- Pedal Removal And Installation
- Linkage Removal And Installation
- Pedal (Adjusting)
- Floor Pan Removal And Installation
- CONTROL PANEL
- Description
- Removal And Installation
- Disassembly And Assembly
- Linkage Removal And Installation
- Pintle Arm Disassembly And Assembly
- Linkage Neutral (Adjusting)
- Linkage Travel (Adjusting)
- Shock Removal And Installation
- CONTROL PANEL (SJC)
- Description
- Removal And Installation
- CONTROL HANDLE / LEVER
- Description
- Lever Removal And Installation
- Boot Removal And Installation
- CONTROL HANDLE / LEVER (ACS)
- Description
- Handle Sensor Removal And Installation
- Handle Removal And Installation
- Handle Disassembly And Assembly
- Lever Removal And Installation
- Boot Removal And Installation
- CONTROL HANDLE / LEVER (SJC)
- 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)
- Rear Window Identification
- Rear Window Removal (Latches)
- Rear Window Removal (Rubber Cord)
- Disassembly And Assembly
- External Access (Rear Window With Latches)
- External Access (Rear Window With Rubber Cord)
- WINDOW (TOP)
- WINDOW (SIDE)
- CAB DOOR
- Description
- Removal And Installation
- Disassembly And Assembly
- Aligning
- Adjusting
- Checking Operation
- ARMREST
- Description
- Removal And Installation
- Disassembly And Assembly
- LEFT SIDE LOWER PANEL
- Removal And Installation
- Disassembly And Assembly
- RIGHT SIDE LOWER PANEL
- Removal And Installation
- Disassembly And Assembly
- HEADLINER
- ELECTRICAL SYSTEM
- ELECTRICAL SCHEMATICS
- ELECTRICAL SYSTEM INFORMATION
- Glossary Of Electrical Symbols
- Standard Cab Harness Connectors
- Deluxe Cab Harness Connectors
- Mainframe Harness Connectors – Manual Controls
- Mainframe Harness Connectors – SJC
- Description
- Troubleshooting
- Fuse And Relay Location / Identification
- BATTERY
- Removal And Installation
- Battery Maintenance
- Maintaining Battery Charge Level
- Battery Service During Machine Storage
- Battery Testing
- Battery Charging
- 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 (Standard Key Panel) Removal And Installation
- Right Panel (Keyless Start Panel) Removal And Installation
- Right Panel (Deluxe Instrumentation 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 (SJC) (DRIVE)
- Description
- Connector Identification
- 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 And Parking Brake (Engine RUNNING)
- Inspecting The Lift Arm Bypass Control
- Inspecting Deactivation Of Lift And Tilt Functions (ACS And SJC)
- Troubleshooting
- SEAT BAR SENSOR
- Description
- Troubleshooting
- Testing
- Removal
- Installation
- Bobcat Interlock Control System (BICS™) Circuit Test
- TRACTION LOCK
- Description
- Troubleshooting
- Inspecting
- CONTROL SYSTEM (ACS)
- Description
- Troubleshooting
- Handle Sensor Connector Disassembly And Assembly
- Switch Handle Removal
- Switch Handle Installation
- Actuator Connector Disassembly And Assembly
- Handle Lock Solenoid Removal And Installation
- Handle Lock Solenoid Disassembly And Assembly
- Foot Sensor Removal And Installation
- Foot Sensor Disassembly And Assembly
- Foot Sensor Lock Solenoid Removal And Installation
- ELECTRICAL / HYDRAULIC CONTROLS
- Identification Chart
- Description
- Identification Chart ACD Group 0
- Identification Chart ACD Group 1
- Identification Chart ACD Group 2
- Identification Chart ACD Group 3
- ELECTRICAL / HYDRAULIC CONTROLS (ACS)
- Identification Chart
- Description
- Identification Chart ACD Group 0
- Identification Chart ACD Group 1
- Identification Chart ACD Group 2
- Identification Chart ACD Group 3
- 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 (SJC)
- Hydrostatic Pump Calibration (SJC)
- Lift And Tilt Calibration (ACS)
- STEERING DRIFT COMPENSATION (OPERATOR MODE)
- STEERING DRIFT COMPENSATION (SERVICE MODE)
- 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
- BACK-UP ALARM SYSTEM
- Description
- Inspection
- Adjusting Switch Position
- Troubleshooting (Standard And ACS)
- Troubleshooting (Joystick)
- Alarm Removal And Installation
- Switch Removal And Installation
- FRONT HORN
- Removal And Installation
- Troubleshooting
- Troubleshooting (Joystick)
- TELEMATICS
- Description
- Removal And Installation
- Procedure
- ENGINE SERVICE
- ENGINE INFORMATION
- Description
- Specifications
- Torque Values
- Troubleshooting
- Engine Removal And Installation
- Engine Mount Replacement
- Compression – Testing
- 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
- AIR CLEANER
- Housing Removal And Installation
- ENGINE COOLING SYSTEM (EARLIER MODELS)
- 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 – Testing
- ENGINE COOLING SYSTEM (LATER MODELS)
- Radiator / Oil Cooler Removal And Installation
- Hydraulic Fan Description
- Reversible 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 – Testing
- LUBRICATION SYSTEM
- Oil Pan Removal And Installation
- Oil Pump Removal And Installation
- Relief Valve – Testing
- Oil Pump Inspection
- Oil Filter Cooler Removal And Installation
- Engine Oil Pressure – Testing
- FUEL SYSTEM
- Fuel Shutoff Solenoid – Testing
- Fuel Shutoff Solenoid Removal And Installation
- Fuel Injection Pump – Testing
- Fuel Injection Pump Assembly Removal And Installation
- Governor Housing Disassembly And Assembly
- Governor Disassembly And Assembly
- Fuel Camshaft Removal And Installation
- Fuel Injection Pump Removal And Installation
- Fuel Injection Pump – Timing
- Fuel Injector Removal And Installation
- Fuel Injector Nozzle Pressure – Testing
- Nozzle Spray Condition
- Valve Seat Tightness
- CYLINDER HEAD
- Glow Plugs – Testing
- Glow Plugs Removal And Installation
- Valve Clearance Adjustment
- Valve Timing – Inspecting
- Cylinder Head Removal And Installation
- Cylinder Head Disassembly And Assembly
- Cylinder Head – Servicing
- Cylinder Head Top Clearance
- Valve Guide – Inspecting
- Valve Guide Removal And Installation
- Reconditioning The Valve And Valve Seat
- Valve Spring
- Valve Tappets
- Rocker Arm And Shaft – Inspecting
- Bridge Arm And Bridge Arm Shaft – Inspecting
- Bridge Arm Shaft – Removal And Installation
- Push Rod Alignment – Inspecting
- CRANKSHAFT AND PISTONS
- Piston And Connecting Rod Removal And Installation
- Piston And Connecting Rod – Servicing
- Cylinder Bore – Inspecting
- Connecting Rod Alignment
- Crankshaft Gear Removal And Installation
- Crankshaft And Bearings Removal And Installation
- Crankshaft And Bearings – Servicing
- CAMSHAFT AND TIMING GEARS
- Timing Gearcase Cover Removal
- Timing Gearcase Cover Installation
- Timing Gears Backlash – Inspection
- 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
- Disassembly And Assembly
- HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
- AIR CONDITIONING SYSTEM FLOW
- Description
- Chart
- Components
- Safety Equipment
- REGULAR MAINTENANCE
- Filters
- Belt Adjustment
- Belt Replacement
- Air Conditioning Condenser
- Air Conditioning Lubrication
- Air Conditioning Service Chart
- Evaporator / Heater Coil
- TROUBLESHOOTING
- 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
- Oil Check
- CONDENSER (EARLIER MODELS)
- CONDENSER (LATER MODELS)
- RECEIVER / DRIER (EARLIER MODELS)
- Receiver / Drier Removal And Installation
- Pressure Relief Valve Removal And Installation
- Pressure Switch Removal And Installation
- Schrader® Valve Removal And Installation
- RECEIVER / DRIER (LATER MODELS)
- Receiver / Drier Removal And Installation
- Pressure Switch Removal And Installation
- Schrader® Valve Removal And Installation
- EVAPORATOR / HEATER UNIT
- THERMOSTAT
- Description
- Removal And Installation
- EXPANSION VALVE
- EVAPORATOR COIL
- HEATER COIL
- BLOWER FAN
- Removal And Installation
- Disassembly And Assembly
- HEATER VALVE
- EVAPORATOR / HEATER COVER
- SPECIFICATIONS
- (S550) LOADER SPECIFICATIONS
- Machine Dimensions
- Performance
- Engine
- Drive System
- Controls
- Hydraulic System
- Electrical System
- Capacities
- Tires
- TECHINCAL SERVICE GUIDE SPECIFICATIONS
- Engine
- Engine Torques
- Cooling System
- Loader Torques
- Hydraulic / Hydrostatic System
- Fuel Consumption
- 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
- CONVERSIONS
- Decimal And Millimeter Equivalent Chart
- U.S. To Metric Conversion Chart
- SERVICE TOOLS REQUIRED
- Remote Start Tools
- Hydraulic Tools
- Mainframe And Drive Tools
- Electrical Tools
- Engine Tools
- HVAC Tools
- ALPHABETICAL INDEX
Bobcat Software
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