The T2566 VersaHANDLER is Bobcat's telescopic handler, so think jobsite forklift with boom reach for pallets, bales, and material placement. The people who grab this manual are the ones actually wrenching on it: shop mechanics, field techs, and owners who are past warranty and tired of guessing. They want wiring diagrams that are readable, hydraulic specs in one place, and proper teardown/assembly steps like they'd expect on Cat or Deere telehandlers.
What this manual helps you do
- Diagnose hydraulic issues in the boom and stabilizers, and pressure-test the circuits on the telescopic handler.
- Trace and repair electrical faults using wiring diagrams, from dead controls to warning lights that won't clear.
- Follow step-by-step procedures to remove, rebuild, and reinstall major components like the boom sections, axles, and steering cylinders.
- Check and set adjustments on the hydrostatic drive, steering, and boom functions after repairs.
- Replace wear parts and seals with the correct disassembly order, inspection points, and reassembly sequences.
Who this is for
This is for anyone working on a Bobcat T2566 VersaHANDLER TTC in the A8G311001-A8G399999 serial range: small contractors, rental fleets, farm shops, and independent mechanics. If you just need to learn how to run the machine or daily grease points, you want the operator's handbook instead, not this manual.
FAQ
Q: Is this a searchable PDF and are the wiring diagrams readable?
A: These manuals are normally supplied as searchable PDFs, and the wiring diagrams are laid out so you can zoom in and trace circuits on a laptop or tablet.
Q: How do I know if it fits my exact machine?
A: Check the serial plate on your T2566; if it falls between A8G311001 and A8G399999, this is the right service manual series.
Q: Is this the right document if I'm doing my own repairs?
A: Yes, if you're doing real repair work beyond basic maintenance, this is the workshop manual you'd want in the shop.
Bottom line: If your T2566 serial number is in that A8G311001-A8G399999 window and you're doing actual repairs, this is the manual you need. If you only want operating tips, 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 LOCATION
- Telescopic Handler Serial Number
- Engine Serial Number
- Other Serial Numbers
- DELIVERY REPORT
- TELESCOPIC HANDLER IDENTIFICATION
- SAFETY & MAINTENANCE
- LIFTING AND BLOCKING THE TELESCOPIC HANDLER
- OPERATOR CAB (ROPS / FOPS)
- TRANSPORTING THE TELESCOPIC HANDLER ON A TRAILER
- Loading And Unloading
- Fastening
- TOWING THE TELESCOPIC HANDLER
- SERVICE SCHEDULE
- AIR CLEANER SERVICE
- ENGINE COOLING SYSTEM
- Cleaning
- Removing And Replacing The Coolant
- Checking Level
- FUEL SYSTEM
- Fuel Specifications
- Biodiesel Blend Fuel
- Filling The Fuel Tank
- Secondary Fuel Filter
- Primary Fuel Filter (Pre-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
- Hydraulic Tank Breather
- ATTACHMENT CARRIER
- Inspection And Maintenance
- AXLES (FRONT AND REAR)
- Checking Oil Level (Planetary Carrier)
- Removing And Replacing Oil (Planetary Carrier)
- Checking And Adding Oil (Front Differential)
- Removing And Replacing Oil (Front Differential)
- Checking And Adding Oil (Rear Differential)
- Removing And Replacing Oil (Rear Differential)
- Checking And Adding Oil (Front Drop Box)
- Removing And Replacing Oil (Front Drop Box)
- LUBRICATING THE TELESCOPIC HANDLER
- TIRE MAINTENANCE
- Wheel Nuts
- Rotating
- Mounting
- APPROVED BOOM STOP
- Installing The Approved Boom Stop
- Removing The Approved Boom Stop
- ENGINE COVER
- TELESCOPIC HANDLER STORAGE AND RETURN TO SERVICE
- Storage
- Return To Service
- STOPPING THE ENGINE AND LEAVING THE TELESCOPIC HANDLER
- EMERGENCY EXIT
- HYDRAULIC SYSTEM
- HYDRAULIC SCHEMATIC
- HYDRAULIC SYSTEM INFORMATION
- Glossary Of Hydraulic / Hydrostatic Symbols
- Troubleshooting Chart
- Tightening Procedures
- LIFT CYLINDER
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- BUCKET POSITIONING CYLINDER
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- EXTENSION CYLINDER
- Cylinder Group Removal And Installation
- Upper Tubeline Removal
- Upper Tubeline Installation
- Extension Cylinder Removal And Installation
- Tubeline Tray Disassembly
- Tubeline Tray Assembly
- Parts Identification
- Disassembly
- Assembly
- TILT CYLINDER
- TILT CYLINDER
- Parts Identification
- Disassembly
- Assembly
- STEERING CYLINDER (FRONT)
- Removal
- Installation
- Disassembly
- Assembly
- STEERING CYLINDER (REAR)
- Removal
- Installation
- Disassembly
- Assembly
- DRIVE BOX
- Parts Identification
- Disassembly
- Assembly
- Special Tools
- MAIN RELIEF VALVE
- Testing And Adjustment
- Removal And Installation
- QUICK-TACH CYLINDER
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- PORT RELIEF VALVES
- STEERING MODE VALVE BLOCK
- Removal And Installation
- Parts Identification
- Disassembly
- Solenoid Testing
- Assembly
- BRAKE VALVE
- Removal And Installation
- Disassembly And Assembly
- GEAR PUMP
- Removal And Installation
- Parts Identification
- Disassembly And Assembly
- FAN MOTOR
- Removal And Installation
- Parts Identification
- Disassembly And Assembly
- HYDRAULIC FLUID RESERVOIR
- STEERING VALVE
- Removal And Installation
- Parts Identification
- Disassembly
- Inspection
- Assembly
- HYDRAULIC CONTROL VALVE
- Troubleshooting Chart (Controllers)
- Telescoping Valve Section Troubleshooting
- Auxiliary Valve Section Troubleshooting
- Troubleshooting Chart (Control Valve)
- Removal And Installation
- Parts Identification
- Disassembly And Assembly
- End Housing Disassembly And Assembly
- Telescoping Valve Section Disassembly And Assembly
- Auxiliary Valve Section Disassembly And Assembly
- Lifting Valve Section Disassembly And Assembly
- Tilting Valve Section Disassembly And Assembly
- Inlet-Outlet Valve Section Disassembly And Assembly
- JOYSTICK
- PARKING BRAKE
- Valve Removal And Installation
- Valve Disassembly And Assembly
- PILOT PRESSURE LOCKOUT VALVE
- Testing
- Removal And Installation
- Disassembly And Assembly
- ACCUMULATOR
- TOW VALVE
- Removal And Installation
- Disassembly And Assembly
- FRONT AUXILIARY HYDRAULIC PRESSURE RELEASE VALVE
- Removal And Installation
- Disassembly And Assembly
- FLOW CONTROL VALVE
- HYDROSTATIC SYSTEM
- HYDROSTATIC SYSTEM INFORMATION
- Troubleshooting Chart
- Replenishing Valve Function
- OIL COOLER
- HYDROSTATIC DRIVE MOTOR
- Removal And Installation
- Parts Identification
- Disassembly
- Inspection
- Assembly
- HYDROSTATIC PUMP
- Removal And Installation
- Parts Identification
- Disassembly
- Inspection
- Assembly
- Charge Pressure Checking Procedure
- Charge Pressure Adjusting Procedure
- DRIVE SYSTEM
- TROUBLESHOOTING
- AXLE AND DIFFERENTIAL (FRONT)
- Description
- Planetary Carrier And Wheel Hub Parts Identification
- Planetary Carrier Disassembly And Assembly
- Wheel Hub Disassembly And Assembly
- Steering Knuckle Disassembly And Assembly
- Axle Housing / Drive Axle Disassembly
- Brake Group Parts Identification
- Brake Group Disassembly
- Differential Parts Identification
- Differential Disassembly And Assembly
- Pinion Group Parts Identification
- Pinion Group Disassembly
- Pinion Group Assembly
- Brake Group Assembly
- Axle Housing / Drive Axle Assemby
- Special Tools
- AXLE AND DIFFERENTIAL (REAR)
- Description
- Planetary Carrier And Wheel Hub Parts Identification
- Planetary Carrier Disassembly
- Steering Knuckle Parts Identification
- Steering Knuckle Disassembly
- Differential Parts Identification
- Differential Disassembly
- Bevel Pinion Parts Identification
- Bevel Pinion Disassembly
- Bevel Pinion Assembly
- Differential Assembly
- Steering Knuckle Assembly
- Planetary Carrier Assembly
- Special Tools
- FRONT AXLE
- AXLE TOE-IN
- PARKING BRAKE
- Releasing The Brake For Towing
- Re-Activating The Brake
- STEERING ANGLE ADJUSTMENT
- DRIVE SHAFT
- SERVICE BRAKE
- Description
- Bleeding The Brake Circuit
- REAR AXLE
- MAINFRAME
- OPERATOR CAB (S/N A8FR12999 & BELOW, S/N A8G312999 & BELOW)
- OPERATOR CAB (S/N A8FR13000 & ABOVE, S/N A8G313000 & ABOVE)
- OPERATOR SEAT
- BOOM ASSEMBLY
- INNER BOOM
- WEAR PADS (FRONT)
- WEAR PADS (REAR)
- ENGINE COVER
- Removal And Installation
- Gas Cylinder Removal And Installation
- AIR INTAKE COWLING
- FUEL TANK
- QUICK-TACH
- REAR WEIGHTS
- FENDER
- JOYSTICK PANEL (S/N A8FR12999 & BELOW, S/N A8G312999 & BELOW)
- JOYSTICK PANEL (S/N A8FR13000 & ABOVE, S/N A8G313000 & ABOVE)
- DASH COVER / STEERING COLUMN COVER (S/N A8FR12999 & BELOW, S/N A8G312999 & BELOW)
- DASH COVER / STEERING COLUMN COVER (S/N A8FR13000 & ABOVE, S/N A8G313000 & ABOVE)
- ELECTRICAL SYSTEM & ANALYSIS
- ELECTRICAL SCHEMATIC
- ELECTRICAL SYSTEM INFORMATION (S/N A8FR12999 & BELOW, S/N A8G312999 & BELOW)
- Troubleshooting Chart
- Description
- Fuses, Diode And Relay Location / Identification
- ELECTRICAL SYSTEM INFORMATION (S/N A8FR13000 & ABOVE, S/N A8G313000 & ABOVE)
- Troubleshooting Chart
- Description
- Fuses, Diodes And Relays
- BATTERY
- Removal And Installation
- Servicing
- Using A Booster Battery (Jump Starting)
- ALTERNATOR
- Removal And Installation
- Belt Adjustment
- Belt Replacement
- STARTER
- Removal And Installation
- Parts Identification
- Disassembly
- Inspection And Repair
- Assembly
- LIGHTS
- Rear Light Removal And Installation
- Front Light Removal And Installation
- TRAVEL / SIGNAL LEVER (S/N A8FR12999 & BELOW, S/N A8G312999 & BELOW)
- TRAVEL / SIGNAL LEVER (S/N A8FR13000 & ABOVE, S/N A8G313000 & ABOVE)
- TRAVEL / SIGNAL LEVER (S/N A8FR13000 & ABOVE, S/N A8G313000 & ABOVE) (CONT’D)
- Removal And Installation (Cont’d)
- INSTRUMENT PANEL
- SWITCH PANEL (S/N A8FR12999 & BELOW, S/N A8G312999 & BELOW)
- Removal And Installation
- Parts Description
- SWITCH PANEL (S/N A8FR13000 – 14999, S/N A8G313000 – 14999)
- SWITCH PANEL (S/N A8FR15000 & ABOVE, S/N A8G315000 & ABOVE)
- BRAKE LIGHT SWITCH
- Removal And Installation
- Adjustment
- WIPER MOTOR (FRONT)
- WIPER MOTOR (TOP)
- WIPER MOTOR (REAR)
- PEDAL ASSEMBLY
- Removal And Installation
- Disassembly And Assembly
- INCHING SWITCH
- Removal And Installation
- Adjustment
- SERVICE SOFTWARE
- Connecting The Laptop Computer
- Entering The Service Software
- Monitor Screen
- Warnings Screen
- Calibrate Inch Pedal
- Calibrate Creep Potentiometer
- Program / Update Susmic Controller
- LONGITUDINAL STABILITY INDICATOR CALIBRATION (S/N A8FR11001 – 14999, S/N A8G311001 – 14999)
- Installing The Sensor
- Calibration Procedure
- LLMI / LLMC SYSTEM (S/N A8FR15000 & ABOVE, S/N A8G315000 & ABOVE)
- System Calibration
- Calibration Test
- System Failure Reports
- System Components Identification
- LLMS Removal
- LLMS Installation
- LLMC Controller Removal
- LLMC Controller Installation
- ENGINE SERVICE
- ENGINE INFORMATION
- Specifications
- Troubleshooting
- ENGINE SPEED CONTROL
- MUFFLER
- AIR CLEANER
- Housing Removal And Installation
- OIL COOLER / RADIATOR
- Removal And Installation
- Disassembly And Assembly
- ENGINE AND ENGINE MOUNTS
- ENGINE COMPONENTS AND TESTING
- Fuel Injection Pump Removal
- Fuel Injection Pump Installation
- Fuel Injector Removal And Installation
- Checking The Fuel Lift Pump
- Fuel Lift Pump Removal And Installation
- Compression Checking
- Glow Plugs Checking
- Glow Plugs Removal And Installation
- ENGINE TIMING
- ENGINE / HYDROSTAT ASSEMBLY
- FLYWHEEL AND HOUSING
- Removal And Installation
- Ring Gear Removal
- Ring Gear Installation
- RECONDITIONING THE ENGINE
- Turbocharger Troubleshooting
- Turbocharger Description
- Turbocharger Removal And Installation
- Exhaust Manifold Removal And Installation
- Fuel Injector Cover Removal And Installation
- Rocker Cover Removal And Installation
- Cylinder Head Removal
- Cylinder Head Inspection
- Cylinder Head Installation
- Rocker Shaft Disassembly And Assembly
- Valve Removal
- Valve Springs Checking
- Valve Depth Checking
- Valve Guides Checking
- Valve Guide Removal
- Valve Guide Installation
- Valves Checking
- Cutting A Valve Seat
- Valve Seat Assembly
- Changing Valve Springs (With Cylinder Head Installed)
- Valve Clearance Adjustment
- Timing Case And Drive Assembly Description
- Timing Cover Removal
- Timing Cover Installation
- Crankshaft Pulley Removal And Installation
- Front Oil Seal Removal And Installation
- Timing Case And Gear Removal
- Timing Case And Gear Installation
- Camshaft And Tappets Removal
- Camshaft And Tappets Installation
- Pistons And Connecting Rods Description
- Pistons And Connecting Rods Removal
- Pistons And Connecting Rods Disassembly
- Piston Ring End Gap
- Piston Ring Installation
- Piston Ring Groove Clearance
- Connecting Rod Inspection
- Connecting Rod Bushing Replacement
- Piston And Connecting Rod Assembly
- Piston And Connecting Rod Installation
- Checking Piston Height
- Crankshaft And Bearings Description
- Crankshaft And Bearings Removal
- Inspection Of Crankshaft And Bearings
- Crankshaft And Bearings Installation
- Rear Oil Seal Removal
- Rear Oil Seal Housing Positioning
- Rear Oil Seal Installation
- Checking Crankshaft End Play
- Cooling System Description
- Cooling System Description (Cont’d)
- Thermostat Removal and Installation
- Thermostat Testing
- Lubricating Oil Cooler Removal And Installation
- Water Pump Removal
- Water Pump Installation
- Engine Lubrication System Description
- Oil Filter Adapter Removal And Installation
- Oil Pan Removal And Installation
- Oil Screen And Pick-up Tube
- Oil Pump Removal
- Oil Pump Removal (Cont'd)
- Oil Pump Installation
- Oil Pump Installation (Cont'd)
- Oil Pump Disassembly And Assembly
- Oil Pump Disassembly And Assembly (Cont'd)
- Oil Pressure Relief Valve Disassembly And Assembly
- Engine Block Description
- Engine Block Disassembly And Assembly
- Piston Cooling Jet Removal
- Piston Cooling Jet Installation
- Piston Cooling Jet Alignment
- Inspection
- Cylinder Liner Inspection
- Cylinder Liner Removal
- Cylinder Liner Installation
- HEATING, VENTILATION, AIR CONDITIONING
- AIR CONDITIONING SYSTEM FLOW
- Description
- Chart
- Components
- Safety Equipment
- REGULAR MAINTENANCE
- Filters
- Compressor And Alternator Drive Belt Inspection
- Cleaning The Condenser
- Air Conditioning Lubrication
- Air Conditioning Service Chart
- 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
- SYSTEM CHARGING AND RECLAMATION
- Reclamation Procedure
- Charging Procedure With A Manifold Gauge Set
- Charging Procedure
- COMPRESSOR
- Removal And Installation
- Oil
- Oil Check
- Clutch Disassembly And Assembly
- CONDENSER (S/N A8FR12999 & BELOW, S/N A8G312999 & BELOW)
- CONDENSER (S/N A8FR13000 & ABOVE, S/N A8G313000 & ABOVE)
- RECEIVER / DRIER
- PRESSURE SWITCH
- EVAPORATOR / BLOWER UNIT (S/N A8FR12999 & BELOW, S/N A8G312999 & BELOW)
- EVAPORATOR / BLOWER UNIT (S/N A8FR13000 & ABOVE, S/N A8G313000 & ABOVE)
- EXPANSION VALVE (S/N A8FR12999 & BELOW, S/N A8G312999 & BELOW)
- EXPANSION VALVE (S/N A8FR13000 & ABOVE, S/N A8G313000 & ABOVE)
- HEATER ASSEMBLY
- Removal And Installation
- Fan Removal And Installation
- Core Removal And Installation
- SPECIFICATIONS
- (T2556) TELESCOPIC HANDLER SPECIFICATIONS
- Dimensional Specifications
- Performance Specifications
- Weights
- Engine
- Controls
- Drive System
- Traction
- Steering
- Brakes
- Fluid Capacities
- Hydraulic System
- Electrical
- Instruments
- Environmental
- Temperature Range
- (T2566) TELESCOPIC HANDLER SPECIFICATIONS
- Dimensional Specifications
- Performance Specifications
- Weights
- Engine
- Controls
- Drive System
- Traction
- Steering
- Brakes
- Fluid Capacities
- Hydraulic System
- Electrical
- Instruments
- Environmental
- Temperature Range
- MACHINE TORQUE SPECIFICATIONS
- Axle
- Boom
- Drive Box
- Drive Motor
- Engine
- Hydraulic Pump
- 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
- Port Seal Fitting
- HYDRAULIC / HYDROSTATIC FLUID SPECIFICATIONS
- CONVERSIONS
- Decimal And Millimeter Equivalents
- U.S. To Metric Conversion
- ALPHABETICAL INDEX
- SERVICE MANUAL REVISION
- Revision No: T2556, T2566 – 1
- Revision No: T2556, T2566 – 2
- Revision No: T2556, T2566 – 3
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