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Bobcat 753 Loader Service Manual (SN 511011001-511099999)

Format: PDF (Printable Document)

File Language: English

File Pages: 358

File Size: 9.98 MB (Speed Download Link)

Brand: Bobcat

Model: 753 Loader

Book No: 6720326

Serial No: SN 511011001-511099999

Type of Document: Service Manual

Categories: ,

$ 45

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Bobcat 753 Loader Service Manual (SN 511011001-511099999)

A 753 loader is a bread-and-butter skid-steer for landscaping, farm chores, and light construction. It lives on pallet forks, buckets, augers, and snow work, usually in tight yards where you don't want downtime. The people who reach for this service manual are the ones actually turning wrenches in the mud: small contractors, owner-operators, and field techs like me. They're trying to get solid step-by-step repair info, specs, and diagrams so the machine goes back to work instead of waiting on a guess.

What this manual helps you do

  • Trace hydraulic issues in the lift and tilt circuits and verify pressures at the test ports
  • Check and adjust drive and steering functions in the hydrostatic system when the machine creeps or pulls
  • Follow teardown and reassembly steps on the diesel engine, from top-end work to full removal and install
  • Diagnose electrical faults using wiring diagrams, connector callouts, and basic test procedures
  • Replace and adjust mechanical components like Bob-Tach parts, control linkages, chains, and brakes

Who this is for

This manual is for anyone working on a Bobcat 753 loader in the serial range 511011001-511099999, whether you're a small contractor, shop mechanic, rental yard, or owner-operator. If you just want to know how to run the machine or daily grease points, you want the operator's handbook instead, not this service manual.

FAQ

Q: Is this a searchable PDF, and can I read the wiring diagrams on a laptop or tablet?

A: These manuals are usually vector or high-resolution scans, so you can zoom in and search text, including wiring pages, without everything turning to fuzz.

Q: My 753 has a different serial number range. Will this still work?

A: It's written for 753 loaders in the 511011001-511099999 range. If your tag is outside that, you should match a manual to your exact serial range.

Q: I'm doing my own repairs, not just maintenance. Is this the right document?

A: Yes, this is the workshop-level service manual, meant for real repairs and diagnostics, not just fluid intervals.

Bottom line: If your 753's serial number falls between 511011001 and 511099999 and you're actually repairing it, this is the right manual to buy.

📘 Show Index

Table of Contents:

  • MAINTENANCE SAFETY
  • CONTENTS
    • FOREWORD
    • SAFETY INSTRUCTIONS
    • SERIAL NUMBER LOCATIONS
    • LOADER SERIAL NUMBER
    • ENGINE SERIAL NUMBER LOCATION
    • DELIVERY REPORT
    • BOBCAT LOADER IDENTIFICATION
  • PREVENTIVE MAINTENANCE
    • SERVICE SCHEDULE
    • LIFTING AND BLOCKING THE LOADER
      • Procedure
    • TRANSPORTING THE LOADER
      • Procedure
    • LIFTING THE LOADER
      • Procedure
    • LIFT ARM SUPPORT DEVICE
      • To Disengage Lift Arm Support Device
      • To Disengage Lift Arm Support Device
    • OPERATOR CAB
      • Description
      • Raising The Operator Cab
      • Lowering The Operator Cab
      • Raising The Operator Cab (W/Hand Controls)
      • Lowering The Operator Cab (W/Hand Controls)
    • SEAT BAR SYSTEM
      • Description
      • Seat Bar Inspection
      • Seat Bar Maintenance
    • AIR CLEANER
      • Replacement Of The Filter Element
    • FUEL SYSTEM
      • Fuel Specifications
      • Filling The Fuel Tank
      • Fuel Filter
      • Removing Air From The Fuel System
    • ENGINE LUBRICATION SYSTEM
      • Checking Engine Oil
      • Replacement Of Oil And Filter
    • ENGINE COOLING SYSTEM
      • Cleaning The Cooling System
      • Coolant Level
      • Removing Coolant From The Cooling System
    • ALTERNATOR BELT
      • Adjusting The Alternator Belt
    • USING A BOOSTER BATTERY (JUMP STARTING)
      • Procedure
    • HYDRAULIC/HYDROSTATIC SYSTEM
      • Checking And Adding Fluid
      • Hydraulic/Hydrostatic Filter Replacement
      • Hydraulic Reservoir Breather Cap
    • SPARK ARRESTOR MUFFLER
      • Cleaning Procedure
    • TIRE MAINTENANCE
      • Wheel Nuts
      • Tire Rotation
      • Tire Mounting
    • FINAL DRIVE TRANSMISSION (CHAINCASE)
      • Checking And Adding Oil
    • FAN GEARBOX
      • Checking Grease Level
    • DRIVE BELT
      • Adjustment
      • Drive Belt Replacement
    • LUBRICATION OF THE LOADER
      • Procedure
    • REMOTE START SWITCH
      • Procedure
    • DIAGNOSTIC TOOL
      • Procedure
    • SENDER AND SENSOR
      • Service Checks
      • Component
    • MONITOR SERVICE CODES
    • TROUBLESHOOTING THE BOSS® & LCD DISPLAY
  • HYDRAULIC SYSTEM
    • HYDRAULIC / HYDROSTATIC SCHEMATICS
    • TROUBLESHOOTING
    • HYDRAULIC SYSTEM INFORMATION
      • Flare Connections
      • O–Ring Face Seal Connection
      • Straight Thread O–Ring Fitting
      • Tubelines And Hoses
    • LIFT CYLINDER(S)
      • Checking The Lift Cylinder(s)
      • Removal And Installation
    • TILT CYLINDER
      • Checking The Tilt Cylinder
      • Removal And Installation
      • Rod End Seal
    • HYDRAULIC CONTROL VALVE
      • Checking The Main Relief Valve
      • Main Relief Valve Removal And Installation
    • HYDRAULIC CONTROL VALVE (753H)
      • Checking The Dual Pressure Main Relief Valve (Low Setting)
      • Checking The Dual Pressure Main Relief Valve (High Setting)
      • Adjusting The Dual Pressure Main Relief Valve (Low Setting)
      • Adjusting The Dual Pressure Main Relief Valve (High Setting)
    • SELECT VALVE (753H)
      • Checking The Main Relief Valve In High Horsepower Select Valve
    • HYDRAULIC CONTROL VALVE
      • Removal And Installation
    • HYDRAULIC PUMP
      • Checking The Output Of The Pump
      • Checking The Output Of The High Flow Pump
      • Removal And Installation
    • HYDRAULIC FILTER HOUSING
      • Removal And Installation
    • HYDRAULIC FLUID RESERVOIR
      • Removal And Installation
    • CONTROL PEDALS
      • Removal And Installation
      • Adjustment
    • PEDAL INTERLOCK LINKAGE
      • Removal And Installation
      • Adjustment
    • DIVERTER VALVE (OPT.)
      • Removal And Installation
    • HAND CONTROLS
      • Adjustment
      • Removal And Installation
  • HYDROSTATIC SYSTEM
    • TROUBLESHOOTING
    • HYDROSTATIC SYSTEM INFORMATION
    • Replenishing Valve Function
    • FRONT PANEL
    • Removal And Installation
    • STEERING LEVERS
    • Disassembly And Assembly
    • STEERING LEVER CONTROL HANDLE
    • Disassembly And Assembly
    • STEERING LINKAGE
      • 508611001–90879511011001 & Above 511350001 & Above 511475001–75023511525001 & Above 512711001–11125, 11131 & 11139
        • Steering Linkage Adjustment
        • Removal And Installation
        • Centering Plate
        • Pintle Arm Repair
      • 512711126 – 11130, 11132 – 11138 & 11140 & Above 508690870 & Above 511475024 & Above
        • Steering Linkage Adjustment
        • Steering Neutral Adjustment
        • Removal and Installation
    • HYDROSTATIC MOTOR
      • Removal And Installation
    • HYDROSTATIC PUMP
      • Removal And Installation
    • OIL COOLER
      • Removal And Installation
    • DRIVE BELT TENSIONER PULLEY
      • Disassembly
      • Assembly
      • Checking Pulley End Play
  • DRIVE SYSTEM
    • PARKING BRAKE
      • Adjustment
      • Removal And Installation
      • Brake Block And Pads
      • Brake Discs
    • CENTER TRANSMISSION COVER
      • Installation
    • FRONT CHAINCASE COVER
      • Removal And Installation
    • REAR CHAINCASE COVER
      • Removal And Installation
    • MOTOR CARRIER
      • Shaft Seal Replacement
      • Removal And Installation (Later Models)
      • Disassembly And Assembly (Later Models)
      • Disassembly And Assembly (Early Models)
    • AXLE SEAL
      • Removal And Installation
    • AXLE, SPROCKET AND BEARINGS
      • Removal And Installation
      • Checking Axle End Play
    • DRIVE CHAIN
      • Removal And Installation
    • CHAINCASE FLUID
      • Replacing The Chaincase Fluid
  • MAIN FRAME
    • OPERATOR CAB GAS CYLINDER
      • Removal And Installation
      • Disassembly And Assembly
    • OPERATOR CAB
      • Removal And Installation
    • REAR DOOR
      • Removal And Installation
    • SEAT BAR
      • Removal
      • Installation
    • REAR GRILL
      • Removal And Installation
    • BOB–TACH
      • Removal And Installation
      • Bob–Tach Lever And Wedge
      • Bob–Tach Stops (If Equipped)
    • LIFT ARMS
      • Removal And Installation
    • FUEL TANK
      • Removal And Installation
      • Fuel Level Sender
  • ELECTRICAL SYSTEM
    • ELECTRICAL SCHEMATICS
    • ELECTRICAL SYSTEM INFORMATION
      • Description
    • TROUBLESHOOTING
    • BATTERY
      • Removal And Installation
    • ALTERNATOR
      • Checking The Alternator Output (Old Style)
      • Checking The Alternator Regulator (Old Style)
      • Alternator Output Test (New Style)
      • Rectifier (Diode) Test (New Style)
      • Alternator Regulator Test (New Style)
      • Removal And Installation (Old Style)
      • Disassembly (Old Style)
      • Checking The Rotor (Old Style)
      • Checking The Stator (Old Style)
      • Checking The Rectifier (Old Style)
      • Disassembly And Inspection (New Style)
      • Stator Continuity Test (New Style)
      • Stator Ground Test (New Style)
      • Rotor Continuity Test (New Style)
      • Rotor Ground Test (New Style)
      • Rectifier Continuity (Diode) Test (New Style)
      • Assembly (New Style)
    • STARTER
      • Checking The Starter
      • Removal And Installation
      • Disassembly And Assembly
      • Cleaning And Inspection
      • Parts Identification
    • OPERATING SYSTEM UNIT
      • Removal And Installation
    • INSTRUMENT PANEL (S/N 11079 & Above)
      • Removal And Installation
  • ENGINE SERVICE
    • TROUBLESHOOTING
    • RADIATOR
      • Removal And Installation
    • ENGINE MUFFLER
      • Removal And Installation
    • BLOWER HOUSING/FAN GEARBOX
      • Removal And Installation
      • Tension Pulley Removal And Installation
    • FAN GEARBOX
      • Disassembly
        • Long Housing
        • Short Housing
      • Assembly
        • Long Housing
        • Short Housing
      • Checking Backlash
      • Parts Identification
    • AIR CLEANER
      • Removal And Installation
    • ENGINE
      • Removal And Installation
        • S/N 11079 & Above
      • Installation
    • FLYWHEEL
      • Removal And Installation
      • Flywheel Ring Gear
    • BELT SHIELD
      • Removal And Installation
    • VALVE CLEARANCE
      • Adjustment
    • ENGINE COMPRESSION
      • Checking
    • GLOW PLUGS
      • Removal And Installation
      • Checking
    • FUEL INJECTION PUMP
      • Checking The Injection Pump
      • Adjusting Shut–Off Linkage
      • Removal And Installation
      • Timing The Injection Pump
    • FUEL INJECTION NOZZLES
      • Removal And Installation
      • Checking The Injector Nozzle
    • CYLINDER HEAD
      • Removal And Installation
      • Disassembly And Assembly
      • Servicing The Cylinder Head
      • Top Clearance
    • VALVE, VALVE SEAT AND GUIDE
      • Checking The Valve Guide
      • Reconditioning The Valve And Valve Seat
      • Valve Spring
    • ROCKER ARM AND SHAFT
      • Checking
    • TIMING GEARCASE COVER
      • Removal And Installation
    • IDLER GEAR AND CAMSHAFT
      • Removal And Installation
      • Servicing The Camshaft
      • Servicing The Idler Gear And Shaft
    • TIMING GEARS
      • Checking Backlash
    • FUEL CAMSHAFT
      • Removal And Installation
      • Governor
    • CRANKSHAFT GEAR
      • Removal And Installation
    • OIL PUMP
      • Removal And Installation
      • Oil Pump Service
      • Checking Engine Oil Pressure
      • Relief Valve
    • PISTON AND CONNECTING ROD
      • Removal And Installation
      • Servicing The Piston And Connecting Rod
      • Connecting Rod Alignment
    • CRANKSHAFT AND BEARINGS
      • Removal And Installation
      • Servicing The Crankshaft And Bearings
    • CYLINDER BORE
      • Checking The Cylinder Bore
    • WATER PUMP
      • Disassembly And Assembly
  • SPECIFICATIONS
    • 753 LOADER SPECIFICATIONS
      • LOADER DIMENSIONS
      • OPERATIONS & PERFORMANCE
      • ENGINE
      • HYDRAULIC SYSTEM
      • ELECTRICAL
      • DRIVE SYSTEM
      • CAPACITIES
      • TIRES
    • 753H LOADER SPECIFICATIONS
      • LOADER DIMENSIONS
      • OPERATIONS & PERFORMANCE
      • ENGINE
      • HYDRAULIC SYSTEM
      • ELECTRICAL
      • DRIVE SYSTEM
      • CAPACITIES
      • TIRES
    • ENGINE SPECIFICATIONS
      • Fuel Injection Nozzles
      • Fuel Injection Pump
      • Cylinder Head
      • Valves
      • Valve Springs
      • Valve Timing
      • Rocker Arms
      • Camshaft
      • Tappet
      • Cylinders
      • Piston Rings
      • Piston
      • Connecting Rod
      • Oil Pump
      • Crankshaft
      • Timing Gear
      • Thermostat
      • Crankshaft Re–Grind Data
      • Torque For General Metric Bolts
    • TORQUE SPECIFICATIONS FOR LOADER
    • HYDRAULIC/HYDROSTATIC FLUID SPECIFICATIONS
    • STANDARD TORQUE SPECIFICATIONS FOR BOLTS
    • DECIMAL AND MILLIMETER EQUIVALENTS
    • U.S. TO METRIC CONVERSION
  • SERVICE MANUAL REVISIONS
    • 750-001
    • 750-002
    • 750-003
    • 750-004
    • 750-005
    • 750-006
    • 750-007
    • 750-008
    • 750-009
    • 750-010
    • 750-011
    • 750-012
    • 750-013
    • 750-014

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