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Bobcat T36120SL VersaHANDLER® TTC, Telescopic Handler Service Manual (SN B3GS11001-B3GS99999)

Format: PDF (Printable Document)

File Language: English

File Pages: 767

File Size: 26.27 MB (Speed Download Link)

Brand: Bobcat

Model: T36120SL VersaHANDLER® TTC, Telescopic Handler

Book No: 7257228

Serial No: SN B3GS11001-B3GS99999

Type of Document: Service Manual

Categories: ,

$ 45

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Bobcat T36120SL VersaHANDLER® TTC, Telescopic Handler Service Manual (SN B3GS11001-B3GS99999)

This T36120SL is Bobcat's telescopic handler, so think stacking bales, loading feed, lifting pallets of seed, and general farm or yard lifting where a skid-steer just won't reach. The service manual is what you grab when something quits in the middle of a busy week and you've only got a Saturday to tear into it. People use it to stop guessing, get the right teardown order, and put things back together without wrecking seals or cooking a pump.

What this manual helps you do

  • Diagnose hydraulic issues, check pressures, and trace why the boom, outriggers, or steering feel weak or jerky
  • Follow step-by-step removal and installation for major components like the boom sections, drive motors, axles, and cylinders
  • Troubleshoot electrical faults using wiring diagrams when lights, safety interlocks, or boom controls act up
  • Rebuild or reseal hydraulic cylinders and valve sections with the correct assembly sequence and inspection points
  • Set and verify adjustments on linkages, brakes, and safety systems after repairs so the machine runs safely

Who this is for

This is for an owner-operator, farm shop, rental fleet, or field tech working on a Bobcat T36120SL with serial numbers from B3GS11001 to B3GS99999. If you just want basic operating tips or daily checks, you need the operator's handbook instead, not this manual.

FAQ

Q: Is this a searchable PDF with readable wiring diagrams?

A: Yes, manuals like this are normally in searchable PDF with zoomable schematics that you can read on a laptop or tablet.

Q: How do I know it fits my machine?

A: Check your T36120SL serial plate. If it falls between B3GS11001 and B3GS99999, this is the right service manual range.

Q: Is this the book I need to actually repair things?

A: Yes, this is the workshop-level service manual, meant for teardown, testing, and reassembly, not just basic operation or parts lookup.

Bottom line, if you own or wrench on a T36120SL in that serial range and want to do real repairs, this is the manual you're after. If your serial is outside that range, 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
      • 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 SCHEMATICS
    • 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
    • ACCUMULATOR
      • 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
  • 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 SERVICE
    • ENGINE INFORMATION
      • Specifications
      • Troubleshooting
      • Engine Removal And Installation
      • Compression Checking
    • 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 Description
      • Thermostat Removal And Installation
      • Thermostat Testing
      • Lubricating Oil Cooler Removal And Installation
      • Water Pump Removal
      • Water Pump Installation
      • Expansion Tank Removal And Installation
    • LUBRICATION SYSTEM
      • 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 Installation
      • Oil Pump Disassembly And Assembly
      • Oil Pressure Relief Valve Disassembly And Assembly
    • FUEL SYSTEM
      • Fuel Injection Pump Removal
      • Fuel Injection Pump Installation
      • Fuel Injectors Removal And Installation
      • Checking The Fuel Lift Pump
      • Fuel Lift Pump Removal And Installation
      • Exhaust Manifold Removal And Installation
      • Fuel Injector Cover Removal And Installation
      • Rocker Cover Removal And Installation
    • CYLINDER HEAD
      • Glow Plugs Checking
      • Glow Plugs Removal And Installation
      • Removal
      • Inspection
      • Installation
      • Rocker Shaft Disassembly And Assembly
      • Valve Removal
      • Valve Springs Checking
      • Valve Depth Checking
      • Valve Guide Checking
      • Valve Guide Removal
      • Valve Guide Installation
      • Valve Checking
      • Cutting A Valve Seat
      • Valve Seat Assembly
      • Changing Valve Springs (With Cylinder Head Installed)
      • Valve Clearance Adjustment
      • Engine Block Description
      • Engine Block Disassembly And Assembly
      • Engine Block Inspection
      • Cylinder Liner Inspection
      • Cylinder Liner Removal
      • Cylinder Liner Installation
    • CRANKSHAFT AND PISTONS
      • 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
      • Piston Cooling Jet Removal
      • Piston Cooling Jet Installation
      • Piston Cooling Jet Alignment
      • 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
    • CAMSHAFT AND TIMING GEARS
      • Engine Timing Procedure
      • 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
    • TURBOCHARGER
      • Troubleshooting
      • Description
      • Removal And Installation
    • FLYWHEEL AND HOUSING
      • Removal And Installation
      • Flywheel Inspection
      • Ring Gear Removal
      • Ring Gear 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
    • 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
    • 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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