Case 621C, 721C Wheel Loader Service Manual


Covers: Case 621C, 721C Wheel Loader
Pages: 861
Format: PDF
File size: 173mb
Works with: Windows/Mac computers
Notes: Bookmarked, searchable, printable, instant download

The Case 621C, 721C Wheel Loader Service Manual covers specifications, torques, removal and installation procedures, troubleshooting and much more. View the Case 621B, 721B Wheel Loader Service Repair Manual on your computer or print off pages as needed.

Engine repair manual, parts manual and operator’s manual sold separately (6-590 or 6-830).


General Information

  • Standard Torque Specifications
  • Fluids and Lubricants
  • Loctite Product Chart


  • Description
  • Engine and Radiator Removal and Installation
  • Stall Tests


  • Removal and Installation of Starter and Alternator
  • Electrical Specifications and Troubleshooting
  • Batteries
  • Starter and Starter Solenoid
  • Information and Diagnostic Center
  • Alternator


  • Removal and Installation of Steering Components
  • Steering Specifications, Pressure Checks, and Troubleshooting
  • Steering Priority Valve
  • Steering Control Valve
  • Steering Cylinders
  • Center Pivot

Power Train

  • Transmission Specifications, Pressure Checks and Troubleshooting
  • Transmission Service
  • Front and Rear Axle
  • Drive Shaft, Center Bearing, and Universal Joints
  • Wheels and Tires
  • Transmission Control Valve


  • Removal and Installation of Brake Components
  • Hydraulic Brake Troubleshooting
  • Brake Accumulators
  • Brake Actuator Valve
  • Brake Accumulator Valve
  • Parking Brake


  • Removal and Installation of Hydraulic Components
  • Hydraulic Specifications, Pressure Checks and Troubleshooting
  • Hydraulic Pump
  • Cleaning the Hydraulic System
  • Loader Control Valve
  • Cylinders
  • Remote Control Valves
  • Coupler Lock Valve
  • Combination Valve
  • Accumulator for Ride Control
  • Solenoid Valve and Accumulator Valve for Ride Control

Mounted Equipment

  • Pedals and Levers
  • 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
  • Cab Glass Installation

Hydraulic Schematic (Diagram)

Electrical Wiring Schematic (Diagram)

SKU: MPM16092 Category: Tag: