Case 621C, 721C Loader Service Manual

Original price was: $59.99.Current price is: $47.99.

Covers: Case 621C, 721C Loader (All Serial Numbers)
Pages: 826
Format: PDF download
File size: 175mb
Compatibility: Windows/Mac/Tablet/Smartphone
Notes: Instant digital download only – no printed copy or CD-ROM media.

The Case 621C and 721C service manual covers comprehensive service, repair and troubleshooting procedures for the wheel loader. This service manual has over 800 pages of OEM technical information with illustrations for professional and DIY mechanics. View the service manual on your tablet, smartphone or computer and save time and money on repairs.

Latest edition. 6T-590 engine repair manual sold separately.


General Information

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


  • Engine and Radiator Removal and Installation
  • Stall Tests


  • Electrical Specifications and Troubleshooting
  • Removal and Installation of Starter and Alternator
  • Starter and Starter Solenoid
  • Alternator – 45/65 Amp
  • Batteries
  • Information and Diagnostic Center
  • Wiring Schematics


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

Power Train

  • Removal and Installation of Power Train Components
  • Transmission Specifications, Pressure Checks and Troubleshooting
  • Transmission
  • Front Axle
  • Rear Axle
  • Drive Shafts, Center Bearing, and Universal Joints
  • Wheels and Tires
  • Transmission Control Valve


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


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

Mounted Equipment

  • Pedals and Levers
  • Air Conditioner Troubleshooting and System Checks
  • Air Conditioner System Service
  • Removal and Installation of Air Conditioning Components
  • Loader
  • ROPS Cab and ROPS Canopy
  • Cab Glass Installation


  • Wiring Diagram Foldout
  • Hydraulic Circuits Foldout

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SKU: CASE-621C-SM Categories: , Tags: ,

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