Bobcat 7753 Skid-Steer Loader Service Manual – 6720899 (6–91)

This workshop repair service manual PDF download for the 7753 Bobcat Skid-Steer Loader has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to fully at every opportunity.

APPLICABLE MODELS :

Bobcat Loader 7753

TABLE OF CONTENTS :

SAFETY INSTRUCTIONS
SERIAL NUMBER LOCATIONS
DELIVERY REPORT
BOBCAT LOADER IDENTIFICATION
PREVENTIVE MAINTENANCE
HYDRAULIC SYSTEM
HYDROSTATIC SYSTEM
DRIVE SYSTEM
MAIN FRAME
ELECTRICAL SYSTEM
ENGINE SERVICE
SPECIFICATIONS
SERVICE MANUAL REVISIONS

MANUAL SPECIFICATION :

File Format : PDF
Language : English
Printable : Yes
Searchable : Yes
Bookmarked : Yes
P/N : 6720899 (6–91)
Total Pages : 332

This 7753 Bobcat Loader Manual PDF Download contains specs, diagrams, actual real photo illustrations, and schemes. In addition to space savings, nice thing about having completly searcheble PDF files instead of a hard-printed manual is that you can use the Search feature in your PDF reader software (Adobe Acrobat) to find just what your looking for and just print out the exact pages you need or all manual easily. This is the same manual your local dealer will use when doing a repair. This is a must for the Do-It-Yourselfer! Saving Yourself $$$$$$ In Service Repair And Maintenance Costs !!!!

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MAINTENANCE SAFETY
CONTENTS
FOREWORD
SAFETY INSTRUCTIONS
SERIAL NUMBER LOCATIONS
LOADER SERIAL NUMBER
ENGINE SERIAL NUMBER
DELIVERY REPORT
BOBCAT LOADER IDENTIFICATION

PREVENTIVE MAINTENANCE
SERVICE SCHEDULE
LIFTING AND BLOCKING THE LOADER
Procedure
TRANSPORTING THE LOADER
Procedure
SINGLE POINT LIFT
LIFT ARM SUPPORT DEVICE
Installing Lift Arm Support Device
Removing Lift Arm Support Device
OPERATOR CAB
Description
Raising the Operator Cab
Lowering the Operator Cab
Emergency Exit
SEAT BAR RESTRAINT SYSTEM
Description
Seat Bar Inspection
Seat Bar Maintenance
AIR CLEANER
(Standard)
(Optional)
Replacing 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
Replacing of Oil and Filter
COOLING SYSTEM
Cleaning the Cooling System
Checking the Coolant Level
Removing Coolant from the Cooling System
ALTERNATOR BELT
Adjusting the Alternator Belt
USING A BOOSTER BATTERY (JUMP STARTING)
Procedure
BATTERY
Removal and Installation
HYDRAULIC/HYDROSTATIC SYSTEM
Checking and Adding Fluid
Replacing the Hydraulic/Hydrostatic Filter
Checking the Hydraulic Reservoir Breather Cap
Replacing the Hydraulic Fluid
SPARK ARRESTOR MUFFLER
Cleaning Procedure
TIRE MAINTENANCE
Wheel Nuts
Tire Rotation
Tire Mounting
FINAL DRIVE TRANSMISSION (CHAINCASE)
Checking and Adding Oil
Removing Oil from the Chaincase
FAN GEARBOX
Checking Grease Level
DRIVE BELT
Adjustment
Drive Belt Replacement
Adjusting the Drive Belt With The Spring Loaded Drive Idler
Replacing The Drive Belt With The Spring Loaded Drive Idler
LUBRICATION OF THE BOBCAT LOADER
Procedure
PIVOT PINS
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
Checking the Main Relief Valve
Main Relief Valve Removal and Installation
Removal and Installation
HYDRAULIC PUMP
Checking the Output of the Pump
Removal and Installation (Early Models)
Removal and Installation (Later Models)
HYDRAULIC FILTER HOUSING
Removal and Installation
HYDRAULIC FLUID RESERVOIR
Removal and Installation
CONTROL PEDALS
Removal and Installation
Adjustment
PEDAL INTERLOCK SHIELD AND LINKAGE
Removal and Installation
Adjustment

HYDROSTATIC SYSTEM
TROUBLESHOOTING
HYDROSTATIC SYSTEM INFORMATION
Replenishing Valve Function
FRONT PANEL
Removal and Installation
STEERING LEVERS
Disassembly and Assembly
STEERING LINKAGE (S/N 30758 & Below)
Steering Linkage Adjustment
Removal & Installation
Centering Plate
Pintle Arm Removal and Installation
Pintle Arm Lobe Removal and Installation
STEERING LINKAGE (S/N 30759 & Above)
Removal and Installation
Steering Linkage Adjustment
Steering Neutral Adjustment
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
SPRING LOADED DRIVE BELT IDLER
Removal And Installation
Parts Identification
Disassembly
Assembly

DRIVE SYSTEM
PARKING BRAKE
Adjustment
Removal and Installation
Brake Block and Pads
Brake Discs
CENTER TRANSMISSION COVER
Installation
FRONT CHAINCASE COVER
Removal and Installation
MOTOR CARRIER (Later Models)
Shaft Seal Replacement
Early Models
Removal and Installation
Disassembly and Assembly
AXLE HUB AND SEAL
Removal and Installation
AXLE, SPROCKET AND BEARINGS
Removal and Installation
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
REAR GRILL
Removal and Installation
SEAT BAR
Removal
Installation
BOB–TACH
Removal and Installation
Bob–Tach Lever and Wedge
LIFT ARM LINK
Removal and Installation
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 (New Style)
Stator Continuity Test (New Style)
Stator Ground Test (New Style)
Disassembly (New Style)
Rotor Ground Test (New Style)
Rectifier Continuity (Diode) Test (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
Removal and Installation

ENGINE SERVICE
TROUBLESHOOTING
RADIATOR
Removal and Installation
ENGINE MUFFLER
Removal and Installation
BLOWER HOUSING/FAN GEARBOX
Removal and Installation
FAN GEAR BOX
Disassembly
Long Housing
Short Housing
Assembly
Long Housing
Short Housing
Checking Backlash
Parts Identification
TENSION PULLEY
Removal and Installation
AIR CLEANER
Removal And Installation
ENGINE
Removal and 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
LOADER DIMENSIONS
OPERATIONS & PERFORMANCE
ENGINE
HYDRAULIC SYSTEM
ELECTRICAL
DRIVE SYSTEM
CAPACITIES
TIRES
ENGINE SPECIFICATIONS
Fuel Injector Nozzles
Fuel Injection Pump
Cylinder Head
Valves
Valve Springs
Valve Timing
Rocker Arms
Camshaft
Tappet
Cylinders
Piston Rings
Pistons
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
7753–001
7753–002
7753–003
7753–004
7753–005
7753–006
7753–007
7753–008
7753–009
7753–010
7753–011

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