Case 621B, 721B Wheel Loader Service Repair Manual
$48.99
Covers: Case 621B, 721B Wheel Loader
Pages: 1,859
Format: PDF file (zipped)
File size: 425mb
Works with: Windows/Mac computers
Notes: Bookmarked, searchable, printable, instant download
This downloadable service manual contains the necessary technical information to service and repair Case 621B and 721B loaders. Detailed loader specifications, torques, removal and installation procedures, troubleshooting, illustrations, and diagrams are included. Engine and fuel system service/overhaul are also covered. View the PDF manual on your computer or print off pages for the shop
Topics:
General Information
- Loctite Products
- Standard Torque Specs
- Fluids and Lubricants
Engine (6T-590 and 6T-830)
- Specifications
- Cylinder Head and Valve Train
- Cylinder Block – Crankshaft, Pistons, Rods, Sleeves, Camshaft, Bearings, Seals, Flywheel
- Lubrication System
- Cooling System
- Turbocharger
Fuel System
- Fuel System and Filters
- Injection Pump and Drive Gear
- Fuel Injectors
Electrical System
- Removal and Installation of Starter Motor
- Starter and Starter Solenoid – Nippondenso
- Electrical Wiring Schematics, Troubleshooting
- Batteries
- Instrument Cluster and Gauges
- 65 Amp Alternator – Bosch
Steering
- Removal and Installation of Steering Components
- Steering Specifications and Troubleshooting
- Steering Control Valve
- Flow Control Valve
- Steering Cylinder
- Center Pivot
- Aux. Steering Motor and Pump
Powertrain
- Removal and Installation of Powertrain Components
- Transmission Specifications, Schematic and Troubleshooting (With and Without Autoshift Transmission)
- Transmission Repair – 4WG150/180
- Axle Repair
- Driveshaft, Center Bearing and Universal Joints
- Wheels and Tires
- Transmission Control Valve
Brakes
- Removal and Installation of Brake Components
- Hydraulic Brake Troubleshooting
- Brake Pump
- Brake Accumulators
- Brake Actuator Valve
- Brake Accumulator Valve
- Parking Brake
Hydraulic System
- Removal and Installation of Hydraulic Components
- Hydraulic Specifications, Pressure Checks and Troubleshooting
- Cleaning the Hydraulic System
- Hydraulic Pump
- Loader Control Valve
- Cylinders
- Remote Control Valves
- Coupler Lock Valve – XT Loader
- Pressure Reducing/Sequence Valve
Chassis
- Air Conditioning Troubleshooting and System Checks
- Air Conditioner System Service
- Removal and Installation of Air Conditioning System Components
- Air Conditioning Compressor and Clutch
- Loader
- ROPS Cab and ROPS Canopy
- Seat and Seat Belts
- Suspension Seat
- Pedals and Levers
- Cab Window Replacement
Schematics
- Hydraulic Schematic (Diagram)
- Electrical Wiring Schematic (Diagram)
