Bobcat MT52, MT55 Mini Track Loader 6986859 (Preview)
MAINTENANCE SAFETY WARNINGS
MAINTENANCE SAFETY WARNINGS
CONTENTS
FOREWORD
FOREWORD
General Inspection
SAFETY INSTRUCTIONS
Safe Operation Is The Operator’s Responsibility
Before Operation
Call Before You Dig
Silica Dust Exposure
FIRE PREVENTION
Maintenance
Operation
Electrical
Hydraulic System
Fueling
Starting
Spark Arrester Exhaust System
Welding And Grinding
Fire Extinguishers
SERIAL NUMBER LOCATIONS
Machine Serial Number
Engine Serial Number
DELIVERY REPORT
MACHINE IDENTIFICATION
SAFETY AND MAINTENANCE
LIFTING AND BLOCKING THE MINI LOADER
Lifting And Blocking Procedure
Four Point Lift
LIFT ARM SUPPORT
Installing Lift Arm Support
Removing Lift Arm Support
TRANSPORTING THE MACHINE
Loading And Unloading
Fastening The Machine
TOWING THE MACHINE
Towing The Machine Procedure
SERVICE SCHEDULE
Maintenance Intervals
Service Schedule
AIR CLEANER SERVICE
Replacing The Filter Elements
Replacing The Outer Filter
Replacing The Inner Filter
ENGINE COOLING SYSTEM
Cleaning Engine Cooling System
Checking Engine Coolant Level
Removing The Coolant
Replacing The Coolant
FUEL SYSTEM
Fuel Specifications
U.S. Standard (ASTM D975)
E.U. Standard (EN590)
Biodiesel Blend Fuel
Filling The Fuel Tank
Fuel Filter
Removing Water From Fuel Filter
Replacing The Fuel Filter Element
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 Hydraulic Fluid
Hydraulic Fluid Chart
Removing And Replacing Hydraulic / Hydrostatic Filter
Removing And Replacing Hydraulic Fluid
Hydraulic Reservoir Breather
BOB-TACH
Inspecting And Maintaining The Bob-Tach
MACHINE LUBRICATION
Lubricating Grease Fittings
Common Industry Interface Lubrication
Ride-On Platform Lubrication
Parking Brake Lubrication
SPARK ARRESTER MUFFLER
Cleaning Procedure
PIVOT PINS
Inspecting And Maintaining Pivot Pins
INSPECTING THE REVERSE STOP PANEL
Reverse Stop Panel
LIFT AND TILT FUNCTION LOCKOUTS
Inspecting Lift And Tilt Function Lockouts
LIFT ARM BYPASS CONTROL
Operating Lift Arm Bypass Control
Inspecting Lift Arm Bypass Control
NEUTRAL START INTERLOCKS
Inspecting Traction Drive Interlock
Inspecting The Continuous Flow Shutoff Lever For Neutral Start Interlocks
Inspecting Auxiliary Hydraulic Interlock
AUXILIARY HYDRAULIC CONTROL SYSTEM
Inspecting The Continuous Flow Shutoff Lever For Auxiliary Hydraulic Control System
Inspecting The Auxiliary Hydraulic Mode Switch (If Equipped)
HYDRAULIC SYSTEM
HYDRAULIC / HYDROSTATIC SCHEMATICS
HYDRAULIC SYSTEM INFORMATION
Glossary Of Hydraulic / Hydrostatic Symbols
Flow Lines and Connections
Basic and Miscellaneous Symbols
Cylinder
Pump
Motor
Control Mechanisms
Non-Return Valve, Shuttle Valve
Directional Control Valve
Pressure Control Valve
Flow Control Valve
Miscellaneous
Troubleshooting
LIFT CYLINDER
Testing Lift Cylinder
Removing And Installing Lift Cylinder
Lift Cylinder Parts Identification
Disassembling And Assembling Lift Cylinder
TILT CYLINDER
Testing Tilt Cylinder
Removing And Installing Tilt Cylinder
Removing And Installing Rod End Pivot Pin Bushing And Seal
Tilt Cylinder Parts Identification
Disassembling And Assembling Tilt Cylinder
MAIN RELIEF VALVE
Main Relief Valve Description
Testing Main Relief Valve
Removing And Installing Main Relief Valve
PORT RELIEF VALVE
Testing Lift Port Relief Valves
Removing And Installing Lift Port Relief Valve
Testing Tilt Port Relief Valve
Removing And Installing Tilt Port Relief Valve
HYDRAULIC CONTROL VALVE (S/N A3WR11001 – A3WR17614, A3WT11001 – A3WT17578, A3WU11001 – A3WU13084)
Hydraulic Control Valve Description
Removing And Installing Hydraulic Control Valve
Hydraulic Control Valve Identification Chart
Disassembling And Assembling Hydraulic Control Valve
HYDRAULIC CONTROL VALVE (S/N A3WR17615 & ABOVE, A3WT17579 & ABOVE, A3WU 13085 & ABOVE, B38R11001 & ABOVE, B38T11001 & ABOVE, B38U11001 & ABOVE)
Hydraulic Control Valve Description
Removing And Installing Hydraulic Control Valve
Hydraulic Control Valve Identification Chart
Disassembling And Assembling Hydraulic Control Valve
HYDROSTATIC PUMP
Testing Direct Pump
Removing And Installing Hydraulic Pump
Hydraulic Pump Parts Identification
Disassembling And Assembling Hydraulic Pump
HYDRAULIC / HYDROSTATIC FILTER
Hydraulic / Hydrostatic Filter Description
Removing And Installing Housing
HYDRAULIC FLUID RESERVOIR
Hydraulic Fluid Reservoir Description
Removing And Installing Hydraulic Fluid Reservoir
OIL COOLER
Oil Cooler Description
Removing And Installing Oil Cooler
HYDROSTATIC SYSTEM
HYDROSTATIC SYSTEM INFORMATION
Hydrostatic System Description
Hydrostatic Troubleshooting
HYDROSTATIC MOTOR
Hydrostatic Motor Description
Removing And Installing Hydrostatic Motor
Hydrostatic Motor Parts Identification
Disassembling Hydrostatic Motor
Inspecting Hydrostatic Motor
Assembling Hydrostatic Motor
CHARGE PRESSURE
Charge Pressure Description
Testing Charge Pressure
Removing And Installing Sender
Replacing Poppet Assembly
HYDROSTATIC PUMP
Hydrostatic Pump Description
Removing And Installing Hydrostatic Pump
Removing And Installing Replenishing / High Pressure Relief Valve
Hydrostatic Pump Parts Identification
Disassembling Hydrostatic Pump
Assembling Hydrostatic Pump
DRIVE BELT
Drive Belt Description
Removing And Installing Shield
Adjusting Drive Belt
Alignment Of Drive Belt
Removing And Installing Drive Belt
Removing And Installing Tensioner Pulley
HYDROSTATIC CONTROLS
Removing And Installing Steering Control Panel
Disassembling And Assembling Steering Control Panel
Removing And Installing Steering Shaft Assembly
Adjusting Steering Linkage
Adjusting Reverse Speed Control
DRIVE SYSTEM
PARKING BRAKE
Parking Brake Description
Removing And Installing Handle
Removing And Installing Cable
Adjusting Cable
Removing And Installing Linkage Assembly
Lubricating Brake Pin
TRACK CARRIAGE COMPONENTS
Track Carriage Components Description
Checking Tension
Adjusting Tension
Removing And Installing Track
Removing And Installing Front Idler (Standard Duty Idlers)
Disassembling And Assembling Front Idler (Standard Duty Idlers)
Removing And Installing Front Idler (Greaseless Idlers)
Disassembling And Assembling Front Idler (Greaseless Idlers)
Removing And Installing Rear Idler (Standard Duty Idlers)
Rear Idler Parts Identification (Standard Duty Idlers)
Disassembling And Assembling Rear Idler (Standard Duty Idlers)
Removing And Installing Rear Idler (Greaseless Idlers)
Disassembling And Assembling Rear Idler (Greaseless Idlers)
Disassembling And Assembling Tensioner
Removing And Installing Roller (Standard Duty Rollers)
Roller Parts Identification (Standard Duty Rollers)
Disassembling And Assembling Roller (Standard Duty Rollers)
Removing And Installing Roller (Greaseless Rollers)
Disassembling And Assembling Roller (Greaseless Rollers)
Removing And Installing Carriage
Track Damage Identification
Cutting Of Steel Cords
Abrasion Of Embedded Metals
Separation Of Embedded Metals
Separation Of Embedded Metals Due To Corrosion
Cuts On The Lug Side Rubber
Cracks On The Lug Side Rubber Due To Fatigue
Lug Abrasion
Cracks And Cuts On The Lug Side Rubber
Abrasion Of The Track Roller Side
Cuts On The Edges Of Track Roller Side
MAINFRAME
BOB-TACH
Removing And Installing Bob-Tach
Removing And Installing Seal
Disassembling And Assembling Lever And Wedge
COMMON INDUSTRY INTERFACE
Removing And Installing CII
Removing And Installing CII Seal
Disassembling And Assembling CII Lever And Wedge
LIFT ARMS
Removing And Installing Lift Arms
REAR DOOR
Removing And Installing Rear Door
Removing And Installing Rear Door Panel
Removing And Installing Striker
Adjusting Striker
Removing And Installing Latch
Adjusting Striker
FUEL TANK
Fuel Tank
Removing And Installing Fuel Tank
Removing And Installing Fuel Level Sensor
INSTRUMENT PANEL
Removing And Installing Instrument Panel
GRAB BAR
Removing And Installing Grab Bar
HOOD
Disassembling And Assembling
Removing And Installing Latch
Adjusting Striker
REVERSE STOP PANEL
Reverse Stop Panel Description
Inspecting Reverse Stop Function
Removing And Installing Reverse Stop Panel
Removing And Installing Reverse Stop Mechanism
Disassembling And Assembling Reverse Stop Mechanism
BOTTOM ACCESS PANEL
Removing And Installing Bottom Access Panel
RIDE-ON PLATFORM (HINGED)
Removing And Installing Ride-On Platform (Hinged)
Removing And Installing Tire
Removing And Installing Caster With Bushing
Removing And Installing Caster With Bearings
Disassembling And Assembling Caster With Bearings
ELECTRICAL SYSTEM
ELECTRICAL SCHEMATICS
ELECTRICAL SYSTEM INFORMATION
Glossary Of Electrical Symbols
Connections
Components
Senders And Sensors
Electrical System Description
Fuse And Relay Location
Fuse And Relay Identification
Troubleshooting Electrical System
Testing Solenoid
BATTERY
Battery Maintenance
Maintaining Battery Charge Level
Battery Maintainers
Battery Service During Machine Storage
Testing The Battery
Battery Charging
Removing And Installing The Battery
Using A Booster Battery (Jump Starting)
ALTERNATOR
Alternator Belt Adjustment
Alternator Belt Replacement
Alternator Description
Testing Alternator Output
Testing Full Field
Testing Alternator Voltage
Removing And Installing Alternator
Alternator Parts Identification
STARTER
TESTING STARTER
REMOVING AND INSTALLING STARTER
STARTER PARTS IDENTIFICATION
INSTRUMENT PANEL
Removing And Installing Component
LIGHTS
Removing And Installing Lights
NEUTRAL START SENSOR
Neutral Start Sensor Description
Removing And Installing Neutral Start Sensor
Adjusting Sensor Activation
Removing Sensor Activation Bolt
CONTINUOUS FLOW SHUTOFF SWITCH
Removing And Installing Continuous Flow Shutoff Switch
Testing Continuous Flow Shutoff Switch
ELECTRICAL / HYDRAULIC CONTROLS
Electrical / Hydrostatic Controls Identification Chart
ELECTRIC COOLING FAN
Electric Cooling Fan Description
Removing And Installing Electric Cooling Fan
ENGINE SERVICE
ENGINE INFORMATION
Engine Information Description
Specifications
Fuel Injector Nozzles
Fuel Injection Pump
Cylinder Head
Valves
Valve Springs
Rocker Arms
Camshaft
Cylinders
Piston Rings
Pistons
Connecting Rods
Crankshaft
Oil Pump
Timing Gear
Thermostat
Specifications
Fuel Injector Nozzles
Fuel Injection Pump
Cylinder Head
Valves
Valve Springs
Rocker Arms
Camshaft
Cylinders
Piston Rings
Pistons
Connecting Rods
Crankshaft
Oil Pump
Timing Gear
Thermostat
Torque Values
Kubota® Metric Engine Bolts
Tightening Torques For General Use Screws, Bolts And Nuts
Troubleshooting Engine
Removing And Installing Engine
Replacing Engine Mount
Checking Compression
ENGINE SPEED CONTROL
Removing And Installing Engine Speed Control
Disassembling And Assembling Engine Speed Control
Removing And Installing Cable
MUFFLER
Removing And Installing Muffler
AIR CLEANER
Removing And Installing Housing
ENGINE COOLING SYSTEM
Removing And Installing Radiator
Removing And Installing Fan Blade
Removing And Installing Water Pump
Disassembling And Assembling Water Pump
Removing And Installing Thermostat Housing
LUBRICATION SYSTEM
Removing And Installing Oil Pan
Removing And Installing Oil Pump
Inspecting Oil Pump
Testing Engine Oil Pressure
FUEL SYSTEM
Removing And Installing Fuel Camshaft
Disassembling And Assembling Fuel Camshaft Governor
Checking Fuel Shutoff Solenoid
Installing Fuel Shutoff Solenoid
Removing And Installing Fuel Injection Pump
Timing Fuel Injection Pump
Removing And Installing Fuel Injector
Checking Fuel Injector Nozzle Pressure
Nozzle Spray Condition
Valve Seat Tightness
CYLINDER HEAD
Testing Glow Plugs
Removing And Installing Glow Plugs
Adjusting Valve Clearance
Checking Valve Timing
Removing And Installing Cylinder Head
Disassembling And Assembling Cylinder Head
Servicing Cylinder Head
Clearance Cylinder Head Top
Checking Valve Guide
Reconditioning The Valve And Valve Seat
Checking Valve Spring
Checking Valve Tappets
Checking Rocker Arm And Shaft
CRANKSHAFT AND PISTONS
Removing And Installing Piston And Connecting Rod
Servicing Piston And Connecting Rod
Checking Cylinder Bore
Connecting Rod Alignment
Removing And Installing Crankshaft Gear
Removing And Installing Crankshaft And Bearings
Servicing Crankshaft And Bearings
CAMSHAFT AND TIMING GEARS
Removing And Installing Timing Gearcase Cover
Checking Timing Gears Backlash
Removing And Installing Idler Gear And Shaft
Servicing Camshaft
Servicing Idler Gear And Shaft
HYDRAULIC GEAR PUMP MOUNTING BRACKET
Removing And Installing Hydraulic Gear Pump Mounting Bracket
Removing And Installing Hydraulic Gear Pump Coupler
FLYWHEEL AND ENGINE MOUNTING BRACKET
Removing And Installing Flywheel
Removing And Installing Ring Gear
Removing And Installing Engine Mounting Bracket
SPECIFICATIONS
(MT52) MINI LOADER SPECIFICATIONS
Performance
Controls
Engine
Hydraulic System
Electrical
Drive System
Capacities
Ground Pressure
(MT55) MINI TRACK LOADER SPECIFICATIONS
Dimensions (Narrow Track)
Performance
Controls
Engine
Hydraulic System
Electrical
Drive System
Capacities
Tracks
Ground Pressure
(MT52) TECHNICAL SERVICE GUIDE SPECIFICATIONS — (S/N A3WR11001 & ABOVE, S/N A3WS11001 & ABOVE, S/N B38R11001 & ABOVE)
Engine
Engine Torques
Cooling System
Electrical
Loader Torques
Hydraulic System
Fuel Consumption
(MT55) TECHNICAL SERVICE GUIDE SPECIFICATIONS – (S/N A3WT11001 & ABOVE, S/N A3WU11001 & ABOVE, S/N B38T11001 & ABOVE, S/N B38U11001 & ABOVE)
Engine
Engine Torques
Cooling System
Electrical
Loader Torques
Hydraulic System
Fuel Consumption
TORQUE SPECIFICATION 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
Tightening The Flare Fitting
O-ring Flare Fitting
Port Seal Fitting
Push To Connect Fittings
HYDRAULIC FLUID SPECIFICATIONS
Specifications
CONVERSIONS
Decimal And Millimeter Equivalent Chart
U.S. To Metric Conversion Chart
SERVICE TOOLS REQUIRED
Hydraulic Tools
Engine Tools
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