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Bobcat BL370 Backhoe Loader Service Manual (SN 570411001-570499999)

Format: PDF (Printable Document)

File Language: English

File Pages: 654

File Size: 21.72 MB (Speed Download Link)

Brand: Bobcat

Model: BL370 Backhoe Loader

Book No: 6901973

Serial No: SN 570411001-570499999

Type of Document: Service Manual

Categories: ,

$ 45

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Bobcat BL370 Backhoe Loader Service Manual (SN 570411001-570499999)

A BL370 backhoe loader spends its life loading gravel, digging trenches, and doing the ugly jobs around the farm or jobsite. When the hydraulics get weak, the shuttle starts acting up, or an electrical gremlin kills your workday, this is when you reach for the service manual. You're trying to get real specs, step-by-step tear-down info, and proper test procedures so the machine is back working by Monday, not sitting dead by the shop door.

What this manual helps you do

  • Diagnose hydraulic problems by checking pressures, testing valves, and tracing weak or jerky functions in the loader and backhoe.
  • Trace electrical issues with wiring diagrams so you can find bad relays, switches, or broken wires instead of just throwing parts at it.
  • Follow step-by-step removal and installation for major components like pumps, cylinders, axles, and the shuttle or transmission assemblies.
  • Rebuild and reseal hydraulic cylinders, pumps, and motors using the correct disassembly order and reassembly checks.
  • Set and verify adjustments on linkages, brakes, steering, and loader/backhoe controls so the machine runs smooth and safe.

Who this is for

This manual is for anyone responsible for keeping a Bobcat BL370 going: small contractors, farm and ranch owners, shop mechanics, and rental fleets. If you only want basic controls, daily checks, and safety info, you want the operator's handbook instead, not this service manual.

FAQ

Q: Is this a searchable PDF and are the wiring diagrams readable?

A: Yes, these manuals are usually scanned or native PDFs that you can search, and the wiring diagrams are laid out so you can zoom in and read wire labels.

Q: Will it cover my BL370 with serial number in the 5704 range?

A: It's meant for BL370 units with serial numbers from 570411001 to 570499999. If your tag falls in that range, this is the right one.

Q: Is this the right document if I'm doing real repairs, not just maintenance?

A: Yes, this is the workshop-level service manual, meant for actual troubleshooting, teardown, and reassembly, not just fluid changes.

If your BL370's serial number sits in that range and you're planning to wrench on it yourself, this is the manual you want. If your number is outside that range, skip it.

📘 Show Index

Table of Contents:

  • ALPHABETICAL INDEX
  • CONTENTS
    • FOREWORD
    • SAFETY INSTRUCTIONS FOR INGERSOLL-RAND LOADER BACKHOE AND ATTACHMENTS
    • SAFE OPERATION IS THE OPERATOR’S RESPONSIBILITY
    • FIRE PREVENTION
    • SERIAL NUMBER LOCATION
      • Loader Backhoe Serial Number
      • Engine Serial Number
    • DELIVERY REPORT
    • INGERSOLL-RAND LOADER IDENTIFICATION
  • SAFETY AND MAINTENANCE
    • LIFTING AND BLOCKING THE LOADER BACKHOE
      • Procedure
    • LIFT ARM SUPPORT DEVICE
      • Installing The Lift Arm Support Device
      • Removing The Lift Arm Support Device
    • ENGINE COVER
    • TRANSPORTING THE LOADER BACKHOE
      • Procedure
    • TOWING THE LOADER BACKHOE
      • Procedure
    • AXLE TOE-IN
      • Adjustment
    • SERVICE SCHEDULE
      • Chart
    • AIR CLEANER SERVICE
      • Replacing Filter Element
    • ENGINE COOLING SYSTEM
      • Coolant Replacement
    • FUEL SYSTEM
      • Fuel Specifications
      • Filling The Fuel Tank
      • Fuel Filter
    • ENGINE LUBRICATION SYSTEM
      • Checking Engine Oil
      • Oil Chart
      • Replacing Oil And Filter
    • HYDRAULIC/HYDROSTATIC SYSTEM
      • Checking And Adding Fluid
      • Cleaning The Cooler
      • Replacing Hydraulic/Hydrostatic Filter
      • Replacing Hydraulic Fluid
    • REAR AXLE
      • Checking Oil Level
      • Draining Oil
    • FRONT AXLE
      • Checking Oil Level
      • Draining Oil
    • BACKHOE BOOM LOCK
      • Disengaging The Boom Lock
      • Engaging Boom Lock
    • BOB-TACH HAND LEVER
      • Inspection And Maintenance
    • ALTERNATOR BELT
      • Adjusting The Alternator Belt
    • LUBRICATING THE LOADER BACKHOE
    • TIRE MAINTENANCE
      • Wheel Nuts
      • Mounting
      • Tire Pressure
  • HYDRAULIC SYSTEM
    • HYDRAULIC/HYDROSTATIC SCHEMATICS
    • HYDRAULIC SYSTEM INFORMATION
      • Troubleshooting
      • Description
    • ARM CYLINDER
      • Checking
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Assembly
    • BOOM CYLINDER
      • Checking
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Assembly
    • SWING CYLINDER (WITHOUT SIDESHIFT)
      • Removal And Installation
      • Bushing Removal And Installation
      • Parts Identification (Left Side)
      • Parts Identification (Right Side)
      • Disassembly
      • Assembly
    • SWING CYLINDER (WITH SIDESHIFT)
      • Not Available At Time Of Printing
    • BUCKET CYLINDER
      • Checking
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Assembly
    • STABILIZER CYLINDER (WITHOUT SIDESHIFT)
      • Checking
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Assembly
    • STABILIZER CYLINDER (WITH SIDESHIFT)
      • Not Available At Time Of Printing
    • TILT CYLINDER
      • Checking
      • Removal And Installation
      • Parts Identification (Left Side)
      • Parts Identification (Right Side)
      • Disassembly
      • Assembly
    • LIFT CYLINDER
      • Checking
      • Removal And Installation
      • Parts Identification (Left Side)
      • Parts Identification (Right Side)
      • Disassembly
      • Assembly
    • STEERING CYLINDER (FRONT)
      • Removal And Installation
      • Parts Identification
      • Disassembly And Assembly
      • Inspection
    • STEERING CYLINDER (REAR)
      • Removal And Installation
      • Parts Identification
      • Disassembly And Assembly
      • Inspection
    • MAIN RELIEF VALVE
      • Testing The Main Relief Valve
      • Adjustment
    • PORT RELIEF VALVE (BACKHOE CONTROL VALVE)
      • Testing And Adjusting (Arm Control)
      • Testing And Adjusting (Boom Control)
      • Testing And Adjusting (Boom Swing Control)
    • LOADER CONTROL VALVE
      • Removal And Installation
      • Parts Identification
      • Disassembly And Assembly
      • Inlet/Outlet Valve Section
      • Lift Arm Valve Section
      • Tilt Valve Section
      • Auxiliary Valve Section (Front)
      • Auxiliary Valve Section (Rear)
    • BACKHOE CONTROL VALVE
      • Removal And Installation
      • Parts Identification
      • Disassembly And Assembly
      • Inlet/Outlet Valve Section
      • Arm Valve Section
      • Tilt Valve Section
      • Right Stabilizer Valve Section
      • Left Stabilizer Valve Section
      • Boom Valve Section
      • Boom Swing Valve Section
      • Outlet Valve Section
    • HYDRAULIC FLUID RESERVOIR
      • Removal And Installation
      • Filter Removal And Installation
    • HYDRAULIC FILTER HOUSING
      • Removal And Installation
      • Disassembly
      • Assembly
    • GEAR PUMP
      • Removal And Installation
      • Parts Identification
      • Disassembly And Assembly
      • Inspection
    • STEERING PUMP
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Inspection
      • Assembly
    • MASTER CYLINDER
      • Removal And Installation
      • Parts Identification
      • Disassembly And Assembly
    • STEERING VALVE
      • Removal And Installation
      • Adjustment
  • HYDROSTATIC SYSTEM
    • HYDROSTATIC SYSTEM INFORMATION
      • Troubleshooting Chart
      • Replenishing Valve Function
    • OIL COOLER
      • Disassembly
      • Inspection
      • Assembly
    • HYDROSTATIC DRIVE MOTOR
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Inspection
      • Assembly
    • HYDROSTATIC PUMP
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Inspection
      • Assembly
    • HYDROSTATIC TESTING
      • Pump Adjustment
      • Operation Test – Creep Test:
      • Operation Test – Torque Limiter Test:
  • DRIVE SYSTEM
    • TROUBLESHOOTING
      • Chart
    • PARKING BRAKE
      • Lever Removal And Installation
      • Cable Removal And Installation
      • Adjustment
    • PARKING BRAKE HOUSING
      • Removal And Installation
      • Parts Identification
      • Disassembly And Assembly
    • SERVICE BRAKE
      • Description
      • Bleeding The Brake Circuit
    • REAR AXLE
      • Removal
      • Installation
    • FRONT AXLE
      • Removal
      • Installation
      • Installation
      • Axle Pivot Bushing Removal And Installation
    • DRIVESHAFT
      • Removal And Installation
    • DROP BOX
      • Removal And Installation
      • Parts Identification
      • Disassembly
      • Inspection
      • Assembly
    • BRAKE PEDAL ASSEMBLY
      • Removal And Installation
  • MAIN FRAME
    • OPERATOR CANOPY
      • Removal And Installation
    • ENCLOSED CAB
      • Not Available At Time Of Printing
    • OPERATOR SEAT
      • Removal And Installation
    • FLOOR PANELS
      • Front Panel Removal And Installation
      • Rear Panel Removal And Installation
      • Front Right Panel Removal And Installation
      • Front Left Panel Removal And Installation
    • GRILL
      • Removal And Installation
    • GRILL FRAME
      • Removal And Installation
    • ENGINE SIDE COVERS
      • Removal And Installation
    • FENDER
      • Removal And Installation
    • ENGINE COVER
      • Removal And Installation
    • FUEL TANK
      • Removal And Installation
      • Screen Removal And Installation
    • LIFT ARMS
      • Removal And Installation
    • BOB-TACH
      • Removal And Installation
      • Bob-Tach Lever And Wedge
      • Pivot Pin Bushing Removal And Installation
    • ARM
      • Removal And Installation
      • Arm Pivot Bushing Removal And Installation
    • BOOM (WITHOUT SIDESHIFT)
      • Removal And Installation
    • BOOM (WITH SIDESHIFT)
      • Not Available At Time Of Printing
    • SWING FRAME (WITHOUT SIDESHIFT)
      • Removal And Installation
      • Bushing Removal And Installation
    • SWING FRAME (WITH SIDESHIFT)
      • Not Available At Time Of Printing
    • X-CHANGE™
      • Removal And Installation
    • BUCKET
      • Backhoe Bucket Teeth Removal And Installation
      • Loader Bucket Teeth Removal And Installation
    • LIFT ARM STABILIZER
      • Removal And Installation
    • CENTER FLOOR PANEL
      • Removal And Installation
    • STABILIZER (WITHOUT SIDESHIFT)
      • Removal And Installation
    • STABILIZER (WITH SIDESHIFT)
      • Not Available At Time Of Printing
    • FRONT AXLE PIVOT FRAME
      • Not Available At Time Of Printing
  • ELECTRICAL SYSTEM AND ANALYSIS
    • ELECTRICAL SCHEMATIC
    • ELECTRICAL SYSTEM INFORMATION
      • Troubleshooting Chart
      • Description
      • Fuse Location
      • Relay Location
    • BATTERY
      • Removal And Installation
      • Servicing The Electrical System
      • Using A Booster Battery (Jump Starting)
    • ALTERNATOR
      • Adjusting The Alternator Belt
      • Description
      • Tests
      • Alternator Output Test
      • Full Field Test
      • Alternator Regulator Test
      • Alternator Regulator Test With Voltmeter
      • Removal And Installation
      • Parts Identification
      • Pulley Removal And Installation
      • Disassembly And Assembly
      • Rotor Continuity Test
      • Stator Continuity Test
      • Rectifier Continuity (Diode) Test
      • Brush Length
    • STARTER
      • Removal And Installation
      • Checking The Starter In The Loader
      • Parts Identification
      • Disassembly
      • Inspection And Repair
      • No Load Test
      • Assembly
    • FRONT LIGHTS
      • Bulb Removal And Installation
      • Housing Removal And Installation
    • TURN INDICATOR LIGHTS (FRONT)
      • Bulb Removal And Installation
    • TURN INDICATOR LIGHTS (REAR)
      • Bulb Removal And Installation
    • CAB LIGHTS
      • Bulb Removal And Installation
      • Housing Removal And Installation
    • FUEL LEVEL SENDER
      • Removal And Installation
    • INSTRUMENT PANEL
      • Removal And Installation
  • ENGINE SERVICE
    • TROUBLESHOOTING
      • Chart
    • ENGINE SPEED CONTROL
      • Removal And Installation
      • Cable Removal And Installation
    • TRAVEL PEDAL
      • Removal And Installation
    • MUFFLER
      • Removal And Installation
    • AIR CLEANER
      • Removal And Installation
    • RADIATOR
      • Removal And Installation
    • ENGINE COMPONENTS AND TESTING
      • Valve Clearance Adjustment
      • Engine Compression Checking
      • Fuel Shut-Off Solenoid Removal And Installation
      • Checking Fuel Injection Pump
      • Fuel Injection Pump Removal And Installation
      • Fuel Injection Pump Timing
      • Fuel Injector Nozzles
      • Fuel Injector Nozzles Removal And Installation
      • Fuel Injector Nozzles Check
    • ENGINE
      • Removal And Installation
      • Mount Replacement
    • RECONDITIONING THE ENGINE
      • Cylinder Head Removal And Installation
      • Cylinder Head Disassembly And Assembly
      • Cylinder Head Servicing
      • Cylinder Head Top Clearance
      • Valve Guide Checking
      • 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
      • Camshaft Servicing
      • Idler Gear And Shaft Servicing
      • Timing Gears Checking Backlash
      • Fuel Camshaft Removal And Installation
      • Fuel Camshaft Governor
      • Crankshaft Gear Removal And Installation
      • Oil Pump Removal And Installation
      • Oil Pump Service
      • Checking Engine Oil Pressure
      • Oil Pump Relief Valve
      • Piston And Connecting Rod Removal And Installation
      • Piston And Connecting Rod Servicing
      • Connecting Rod Alignment
      • Crankshaft And Bearings Removal And Installation
      • Crankshaft And Bearings, Servicing
      • Cylinder Bore, Checking
      • Water Pump Removal And Installation
      • Water Pump Disassembly And Assembly
    • FLYWHEEL HOUSING
      • Removal And Installation
    • FLYWHEEL
      • Removal And Installation
      • Ring Gear Removal And Installation
    • DRIVE COUPLER
      • Removal And Installation
    • TURBOCHARGER
      • Not Available At Time Of Printing
  • SPECIFICATIONS
    • LOADER SPECIFICATIONS
      • Loader Backhoe Dimensions
      • Performance
      • Controls
      • 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
      • Cylinders
      • Tappet
      • Piston Rings
      • Pistons
      • Crankshaft
      • Oil Pump
      • Thermostat
      • Connecting Rods
      • Timing Gear
      • Engine Bolt Torque
      • Grinding Specifications for the Crankshaft
    • LOADER BACKHOE TORQUE
      • Specifications
    • TORQUE SPECIFICATIONS FOR BOLTS
      • Torque For General Metric Bolts
    • HYDRAULIC/HYDROSTATIC FLUID SPECIFICATIONS
      • Specifications
    • CONVERSIONS
      • Decimal And Millimeter Equivalents
      • U.S. To Metric Conversion
      • PARTS MANAGER
      • SERVICE MANAGER X
      • SALES MANAGER
      • Revision No: BL-370/BL-375-1
      • Date: 22 January 2002
      • Product: Bobcat Loader Backhoe
      • Model: BL-370/BL-375
      • Manual No: 6901973 (12-02)
      • PARTS MANAGER
      • SERVICE MANAGER X
      • SALES MANAGER
      • Revision No: BL-370/BL-375-3
      • Date: 1 June 2003
      • Product: Loader Backhoe
      • Model: BL-370/BL-375
      • Manual No: 6901973 (12-02)
      • PARTS MANAGER
      • SERVICE MANAGER X
      • SALES MANAGER
      • Revision No: BL-370/BL-375-3
      • Date: 1 June 2003
      • Product: Loader Backhoe
      • Model: BL-370/BL-375
      • Manual No: 6901973 (12-02)
      • PARTS MANAGER
      • SERVICE MANAGER X
      • SALES MANAGER
      • Revision No: BL-370/BL-375-4
      • Date: 1 January 2004
      • Product: Loader Backhoe
      • Model: BL-370/BL-375
      • Manual No: 6901973 (12-02)
  • SERVICE MANUAL REVISIONS
    • BL-370/BL-375-1
    • BL-370/BL-375-2
    • BL-370/BL-375-3
    • BL-370/BL-375-4
    • BL-370/BL-375-5

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