2014-2016 Case 621F, 721F Loader Service Manual (Tier 4B)


Covers: 2014-2016 Case 621F, 721F Loader, Tier 4B
Pages: 2,709
Format: PDF download
File size: 172mb
Compatibility: Windows/Mac/Tablet/Smartphone
Notes: Instant digital download only – no printed copy or CD-ROM media.

The Case 621F and 721F service manual covers service and repair procedures, and troubleshooting steps for the wheel loader. This downloadable PDF manual has over 2,700 pages of 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. F4HFE613 engine/fuel repair manual sold separately.


General Information

  • Identification


  • Engine removal and installation
  • Air cleaners and lines
  • SCR exhaust treatment
  • Radiator
  • Fan and drive
  • Aftercooler
  • Crankcase ventilation


  • Powershift transmission general information
  • Removal and installation
  • External controls
  • Internal components
  • Testing
  • Torque converter

4WD System

  • Driveshaft


  • Powered axles
  • Bevel gear set and differential
  • Final drive hub, steering knuckles, and shafts
  • Planetary and final drives


  • Hydraulic service brakes
  • Parking brake or parking lock


  • Hydraulic system general information and schematics
  • Reservoir, cooler, and filters
  • Variable displacement pump
  • Pilot system
  • Hydraulic fan drive cooling system
  • Hydraulic hand control
  • Front loader hydraulic system control
  • Front loader arm/bucket hydraulic system
  • Tool quick coupler hydraulic system


  • Steering control
  • Hydraulic control components
  • Cylinders
  • Auxiliary steering

Electrical System

  • Harnesses and connectors
  • Alternator
  • Battery
  • Fuel tank system
  • SCR electrical system
  • EGR electrical system
  • Cooling fan
  • Cab brake controls
  • Service brake electrical system
  • Parking brake electrical system
  • Cab controls
  • Cab HVAC controls
  • HVAC control system
  • Steering control system
  • Camera
  • Wiper and washer system
  • Cab lighting
  • Warning indicators, alarms, and instruments


  • Cab
  • Cab glazing
  • Operator protections

Frame and Bucket


Air Conditioning

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