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Bobcat T36120SL VersaHANDLER® TTC, Telescopic Handler Service Manual (SN B3GW11001-B3GW99999)

Format: PDF (Printable Document)

File Language: English

File Pages: 703

File Size: 24.22 MB (Speed Download Link)

Brand: Bobcat

Model: T36120SL VersaHANDLER® TTC, Telescopic Handler

Book No: 7257231

Serial No: SN B3GW11001-B3GW99999

Type of Document: Service Manual

Categories: ,

$ 45

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Bobcat T36120SL VersaHANDLER® TTC, Telescopic Handler Service Manual (SN B3GW11001-B3GW99999)

A T36120SL VersaHANDLER is the kind of machine you park on a job when you've got to lift pallets of block, trusses, or materials where a skid-steer just won't reach. The people who grab this service manual are the ones paying for downtime: small contractors, rental yards, or shop guys who actually spin the wrenches. They want the right teardown steps, test ports, and specs so they don't guess and blow more time or parts. If that's you, this is the kind of book you keep on the laptop in the truck.

What this manual helps you do

  • Diagnose hydraulic and boom issues, then check pressures and cycle times on the telescopic system the way Bobcat intended
  • Trace and repair electrical faults using wiring diagrams for this exact T36120SL series and serial range
  • Follow step-by-step disassembly and reassembly on axles, boom sections, steering, and drivetrain components
  • Adjust limit switches, safety interlocks, and load-handling systems so the machine lifts and extends safely
  • Replace and set up wear items like cylinders, hoses, and drive components with the right sequences and checks

Who this is for

This manual is for anyone working on a Bobcat T36120SL VersaHANDLER TTC in the B3GW11001-B3GW99999 serial range, whether you're a small contractor, rental fleet, or shop mechanic. If you just want operating tips or daily checks, you're after the operator's handbook, not this.

FAQ

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

A: These manuals are usually vector or high-resolution scans, so you can zoom in on wiring and search text on a laptop or tablet.

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

A: Check your serial plate. If it starts with B3GW and falls between B3GW11001 and B3GW99999, this is the right one.

Q: Is this what I need for real repairs, not just maintenance?

A: Yes, this is the workshop-level service manual, meant for actual troubleshooting and repairs, not basic owner maintenance.

Bottom line: if your telehandler is a T36120SL in that B3GW serial range and you're doing your own repairs, this is the manual you want. If the serial doesn't match, skip it.

📘 Show Index

Table of Contents:

  • MAINTENANCE SAFETY
  • CONTENTS
  • FOREWORD
    • FOREWORD
    • SAFETY INSTRUCTIONS
      • Safe Operation Is The Operator’s Responsibility
      • Safe Operation Needs A Qualified Operator
      • Avoid Silica Dust
      • Dismantling And Disposal
    • FIRE PREVENTION
      • Maintenance
      • Operation
      • Electrical
      • Hydraulic System
      • Fueling
      • Starting
      • Welding And Grinding
      • Fire Extinguishers
    • SERIAL NUMBER LOCATION
      • Telescopic Handler Serial Number
      • Engine Serial Number
      • Diesel Oxidation Catalytic Converter Serial Number
      • Other Serial Numbers
    • DELIVERY REPORT
    • BOBCAT TELESCOPIC HANDLER IDENTIFICATION
  • SAFETY AND MAINTENANCE
    • LIFTING AND BLOCKING THE TELESCOPIC HANDLER
      • Procedure
    • OPERATOR CAB
      • Description
      • Cab Door
      • Cab Door Window
      • Rear Cab Window
      • Cab Light
    • TRANSPORTING THE TELESCOPIC HANDLER ON A TRAILER
      • Loading And Unloading
      • Fastening
    • TOWING THE TELESCOPIC HANDLER
      • Procedure
    • SERVICE SCHEDULE
      • Maintenance Intervals
    • AIR CLEANER SERVICE
      • Replacing Filter Elements
    • ENGINE COOLING SYSTEM
      • Cleaning
      • Checking Level
      • Removing And Replacing The Coolant
    • FUEL SYSTEM
      • Fuel Specifications
      • Biodiesel Blend Fuel
      • Filling The Fuel Tank
      • Primary Fuel Filter (Pre-Filter)
      • Secondary 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
      • Fill / Breather Cap
    • AXLES (FRONT AND REAR)
      • Checking And Adding Oil (Planetary Carrier)
      • Removing And Replacing Oil (Planetary Carrier)
      • Checking And Adding Oil (Rear Differential)
      • Removing And Replacing Oil (Rear Differential)
      • Checking And Adding Oil (Front Differential)
      • Removing And Replacing Oil (Front Differential)
      • Checking And Adding Oil (Reduction Box)
      • Removing And Replacing Oil (Reduction Box)
    • LUBRICATING THE TELESCOPIC HANDLER
      • Lubrication Locations
      • Front Pads Lubrication
      • Rear Pads Lubrication
    • ATTACHMENT CARRIER
      • Inspection And Maintenance
    • TIRE MAINTENANCE
      • Wheel Nuts
      • Rotating
      • Wheel Replacement
      • Mounting
      • Pressure
    • APPROVED BOOM STOP
      • Installing The Approved Boom Stop
      • Removing The Approved Boom Stop
    • ENGINE COVER
      • Opening And Closing
    • CHAIN CHECKING AND ADJUSTING PROCEDURE
      • Checking / Adjustment Procedure
      • Extension / Retraction Chain Wear Check
    • STOPPING THE ENGINE AND LEAVING THE TELESCOPIC HANDLER
      • Procedure
    • EMERGENCY EXIT
      • Rear Window
    • TELESCOPIC HANDLER STORAGE AND RETURN TO SERVICE
      • Storage
      • Return To Service
    • LIFTING THE TELESCOPIC HANDLER
      • Procedure
    • REMOTE START TOOL (SERVICE TOOL) KIT – MEL1563
      • Remote Start Tool – MEL1563
      • Service Tool Harness Control – MEL1565
      • Service Tool Harness Communicator – MEL1566
    • REMOTE START TOOL (SERVICE TOOL) KIT – 7217666
      • Remote Start Tool (Service Tool) – 7022042
      • Telescopic Handler Service Tool Harness – 6689747
      • Computer Service Tool Harness – 6689746
      • Remote Start Procedure
  • HYDRAULIC SYSTEM
    • HYDRAULIC / HYDROSTATIC SCHEMATIC
    • HYDRAULIC SYSTEM INFORMATION
      • Glossary Of Hydraulic / Hydrostatic Symbols
      • Troubleshooting Chart
      • Tightening Procedures
    • LIFT CYLINDER
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Assembly
    • SELF LEVELING CYLINDER
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Assembly
    • EXTENSION CYLINDER
      • Cylinder Group Removal And Installation
      • Parts Identification
      • Disassembly
      • Assembly
    • TILT CYLINDER
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Assembly
    • STEERING CYLINDER (FRONT)
      • Removal
      • Installation
      • Disassembly
      • Assembly
    • STEERING CYLINDER (REAR)
      • Removal
      • Installation
      • Disassembly
      • Assembly
    • SAFETY VALVE
      • Removal And Installation
    • COUNTERBALANCE VALVE
      • Removal And Installation
    • ACCUMULATORS
      • Service Brake Accumulator Removal And Installation (If Equipped)
      • Boom Valve Accumulator Removal And Installation
    • BRAKE VALVE
      • Removal And Installation
    • GEAR PUMP
      • Removal And Installation
      • Parts Identification
      • Disassembly And Assembly
    • FAN MOTOR
      • Removal And Installation
      • Parts Identification (Single Speed Version) (Standard)
      • Disassembly And Assembly (Single Speed Version) (Standard)
      • Parts Identification (Variable Speed Version) (Optional)
      • Disassembly And Assembly (Variable Speed Version) (Optional)
    • HYDRAULIC FLUID RESERVOIR
      • Removal And Installation
    • STEERING VALVE
      • Removal And Installation
    • HYDRAULIC CONTROL VALVE
      • Troubleshooting Chart (Solenoid Valves)
      • Valve Section Troubleshooting
      • Troubleshooting Chart (Control Valve)
      • Removal And Installation
      • Parts Identification
      • Section Removal
      • Section Disassembly And Assembly
      • Inlet Section Disassembly And Assembly
    • PORT RELIEF VALVES
      • Removal And Installation
    • PARKING BRAKE
      • Valve Removal And Installation
    • FRAME LEVELING CYLINDER (IF EQUIPPED)
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Assembly
    • FRAME LEVELING RELIEF VALVE (IF EQUIPPED)
      • Removal And Installation
    • STEERING MODE VALVE bloCK
      • Removal And Installation
    • STABILIZER CONTROL VALVE (IF EQUIPPED)
      • Removal
      • Installation
      • Parts Identification
      • Disassembly
      • Solenoid Testing
      • Assembly
    • STABILIZER CYLINDER (IF EQUIPPED)
      • Removal
      • Parts Identification
      • Disassembly
      • Assembly
      • Installation
    • BRAKE RELIEF VALVE
      • Removal And Installation
  • HYDROSTATIC SYSTEM
    • HYDROSTATIC SYSTEM INFORMATION
      • Troubleshooting Chart
    • OIL COOLER
      • Description
    • HYDROSTATIC DRIVE MOTOR
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Inspection
      • Assembly
    • HYDROSTATIC PUMP
      • Calibration
      • Removal And Installation
      • Parts Identification
      • Shaft Disassembly
      • Relief Valves Disassembly And Assembly
      • Charge Pump Disassembly
      • Piston Pump Disassembly
      • Solenoid Block Disassembly
      • Inspection
      • Piston Pump Assembly
      • Charge Pump Assembly
      • Solenoid Block Assembly
      • Shaft Assembly
  • DRIVE SYSTEM
    • TROUBLESHOOTING
      • Chart
    • AXLE AND DIFFERENTIAL (FRONT)
      • General Information
      • Planetary Carrier Parts Identification
      • Planetary Carrier Disassembly
      • Steering Knuckle And Drive Axle Parts Identification
      • Steering Knuckle Disassembly
      • Drive Axle Disassembly
      • Brake System Parts Identification
      • Brake System Disassembly
      • Differential Parts Identification
      • Differential Disassembly
      • Bevel Pinion Parts Identification
      • Bevel Pinion Disassembly
      • Bevel Pinion Assembly
      • Differential Assembly
      • Brake System Assembly
      • Drive Axle Assembly
      • Steering Knuckle Assembly
      • Planetary Carrier Assembly
      • Special Tools
    • AXLE AND DIFFERENTIAL (REAR)
      • General Information
      • Planetary Carrier Parts Identification
      • Planetary Carrier Disassembly
      • Steering Knuckle And Drive Axle Parts Identification
      • Steering Knuckle Disassembly
      • Differential And Bevel Pinion Parts Identification
      • Differential Disassembly
      • Bevel Pinion Disassembly
      • Bevel Pinion Assembly
      • Differential Assembly
      • Steering Knuckle Assembly
      • Planetary Carrier Assembly
      • Special Tools
    • FRONT AXLE
      • Removal
      • Installation
    • AXLE TOE-IN
      • Adjustment
    • PARKING BRAKE
      • Removal, Disassembly And Assembly
    • STEERING ANGLE ADJUSTMENT
      • Adjustment
    • DRIVESHAFT
      • Removal And Installation
    • SERVICE BRAKE
      • Description
      • Bleeding The Brake Circuit
    • REAR AXLE
      • Removal
      • Installation
    • REDUCTION BOX
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Assembly
      • Special Tools
  • MAINFRAME
    • OPERATOR CAB
      • Removal And Installation
    • OPERATOR SEAT
      • Removal And Installation
    • BOOM TRAY
      • Removal And Installation
    • BOOM ASSEMBLY
      • Removal And Installation
    • INTERMEDIATE BOOM
      • Removal
      • Installation
    • END BOOM
      • Removal
      • Installation
    • WEAR PADS (FRONT)
      • Removal
      • Installation
    • WEAR PADS (REAR)
      • Removal
      • Installation
    • ENGINE COVER
      • Gas Cylinder Removal And Installation
      • Removal And Installation
    • FUEL TANK
      • Removal And Installation
    • ATTACHMENT CARRIER (QUICK-TACH)
      • Removal And Installation
    • COUNTERWEIGHT
      • Removal And Installation
    • FENDER
      • Removal And Installation
    • STEERING COLUMN COVER
      • Removal And Installation
    • DASH COVER
      • Removal And Installation
    • JOYSTICK PANEL
      • Removal And Installation
    • STABILIZER FRAME (IF EQUIPPED)
      • Removal And Installation
  • ELECTRICAL SYSTEM AND ANALYSIS
    • ELECTRICAL SCHEMATIC
    • ELECTRICAL SYSTEM INFORMATION
      • Troubleshooting Chart
      • Description
      • Fuses And Relay Location / Identification
    • BATTERY
      • Removal And Installation
      • Using A Booster Battery (Jump Starting)
    • ALTERNATOR
      • Removal And Installation
      • Belt Adjustment
      • Belt Checking
      • Belt Replacement
    • STARTER
      • Testing
      • Removal And Installation
    • LIGHTS
      • Rear Light Removal And Installation
      • Rear Light Bulb Replacement
      • Front Light Removal And Installation
      • Front Light Bulb Replacement
    • SIGNAL LEVER
      • Removal And Installation
    • DISPLAY
      • Removal And Installation
    • INSTRUMENT PANEL
      • Removal And Installation
    • BOOM ANGLE SENSOR
      • Removal And Installation
      • Calibration
    • FRONT WIPER MOTOR
      • Removal And Installation
    • TOP WIPER MOTOR
      • Removal And Installation
    • REAR WIPER MOTOR
      • Removal And Installation
    • PEDAL ASSEMBLY
      • Removal And Installation
    • INCHING SENSOR
      • Removal And Installation
      • Calibration
    • SERVICE PC (LAPTOP COMPUTER)
      • Connecting Remote Start Tool (Service Tool) – MEL1563
      • Connecting Remote Start Tool (Service Tool) – 7217666
    • FUEL LEVEL SENDER
      • Removal And Installation
    • JOYSTICK
      • Removal And Installation
    • LLMI / LLMC SYSTEM
      • System Calibration
      • Calibration Test
      • System Failure Reports
      • System Components Identification
      • LLMS Removal
      • LLMS Installation
      • LLMC Removal And Installation
    • TRAVEL DIRECTION LEVER (IF EQUIPPED)
      • Removal And Installation
    • CONTROLLERS
      • Description
      • Gateway Controller
      • Drive Controller
      • Workgroup Controller
      • Display Controller
      • LLMI Controller
      • LLMC Controller
      • Engine Controller
  • ENGINE SERVICE
    • ENGINE
      • Removal And Installation
    • ENGINE AND HYDROSTAT ASSEMBLY
      • Removal And Installation
    • ENGINE SPEED CONTROL
      • Removal And Installation
    • MUFFLER
      • Removal And Installation
    • AIR CLEANER
      • Housing Removal And Installation
    • ENGINE COOLING SYSTEM
      • Oil Cooler / Intercooler / Radiator Removal And Installation
      • Cooling System Check
      • Cooling System Inspection
      • Expansion Tank Removal And Installation
  • HEATING, VENTILATION, AIR CONDITIONING (HVAC)
    • AIR CONDITIONING SYSTEM FLOW
      • Description
      • Chart
      • Components
      • Safety Equipment
    • REGULAR MAINTENANCE
      • Cab Filter
      • Belt Adjustment
      • Belt Replacement
      • Cleaning The Condenser
      • Air Conditioning Lubrication
      • Air Conditioning Service Chart
    • A/C SYSTEM 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
      • Temperature / Pressure Chart
      • Poor A/C Performance
      • HVAC Repair And Leaks
      • Electrical System
    • SYSTEM CHARGING AND RECLAMATION
      • Reclamation And Charging With Recovery / Charging Unit
    • COMPRESSOR
      • Removal And Installation
      • Oil
      • Oil Check
      • Clutch Disassembly And Assembly
    • CONDENSER
      • Removal And Installation
    • RECEIVER / DRIER
      • Removal And Installation
    • PRESSURE SWITCH
      • Removal And Installation
    • EVAPORATOR / HEATER UNIT
      • Removal And Installation
    • THERMOSTAT
      • Description
      • Removal And Installation
    • EXPANSION VALVE
      • Removal And Installation
  • SPECIFICATIONS
    • T35105(L) TELESCOPIC HANDLER SPECIFICATIONS
      • Machine Dimensions
      • Performance
      • Weights
      • Engine
      • Controls
      • Drive System
      • Traction
      • Steering
      • Brakes
      • Fluid Capacities
      • Hydraulic System
      • Electrical System
      • Temperature Range
      • Altitude
      • Instrument Panel
      • Environmental
      • Visibility Diagrams
    • T36120SL TELESCOPIC HANDLER SPECIFICATIONS
      • Machine Dimensions
      • Performance
      • Weights
      • Engine
      • Controls
      • Drive System
      • Traction
      • Steering
      • Brakes
      • Fluid Capacities
      • Hydraulic System
      • Electrical System
      • Temperature Range
      • Altitude
      • Instrument Panel
      • Environmental
      • Visibility Diagrams
    • MACHINE TORQUE SPECIFICATIONS
      • Axle
      • Boom
      • Reduction 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
      • Flare Fitting
      • O-ring Flare Fitting
      • Port Seal Fitting
    • HYDRAULIC / HYDROSTATIC FLUID SPECIFICATIONS
      • Specifications
    • CONVERSIONS
      • Decimal And Millimeter Equivalent Chart
      • U.S. To Metric Conversion Chart
  • ALPHABETICAL INDEX

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