2012-2015 Case 621F, 721F Loader Service Manual (Tier 4)


Covers: 2012-2015 Case 621F, 721F Loader, Tier 4

  • PIN NBF213602 and above

Pages: 2,286
Format: PDF download
File size: 157mb
Compatibility: Windows/Mac/Tablet/Smartphone
Notes: Instant digital download only – no printed copy or CD-ROM media.

The Case 621F and 721F tier 4 service manual covers comprehensive maintenance, service and repair procedures, and troubleshooting steps for the wheel loader. This service manual has over 2,200 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. F4HFE613Z engine/fuel repair manual sold separately.


General Information

  • Identification


  • Engine removal and installation
  • Air cleaners and lines
  • Blowby re-circulation system
  • SCR exhaust treatment
  • Radiator
  • Fan and drive
  • Aftercooler
  • Engine to Transmission Drive Shaft


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

4WD System

  • Driveshaft


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


  • Hydraulic service brakes


  • Hydraulic system general information and schematics
  • Variable displacement pump
  • Pilot system
  • Main control valve
  • Auxiliary hydraulic valves and lines
  • Front loader arm hydraulic system


  • Motor testing

Electrical System

  • Electrical system general information
  • Fuel tank system
  • Fan electrical
  • Engine control system
  • Service brake electrical system
  • Parking brake electrical system
  • Hydraulic system control
  • Steering control system
  • HVAC control system
  • HVAC controls
  • Harnesses and connectors
  • Engine starting system
  • Cold start aid
  • Alternator
  • Battery
  • External lighting
  • External lighting switches and relays
  • Warning indicators, alarms, and instruments
  • Loader arm and bucket control system
  • Cab/Platform harnesses and connectors
  • Cab controls
  • Cab lighting
  • Wiper/Washer system
  • Cab brake controls
  • Cab controls
  • SCR electrical system


  • Cab
  • Cab glazing
  • Operator protections
  • Air conditioning

Front Wheels

Have any questions or need more details? Contact Us

SKU: CASE-621FT4-SM Categories: , Tags: ,

You may also like…


There are no reviews yet.

Be the first to review “2012-2015 Case 621F, 721F Loader Service Manual (Tier 4)”

Your email address will not be published. Required fields are marked *