International Harvester I - 424 and B - 414 Series Tractor Testing and Serrvicing of Hitch Components; Service Manual, is a reproduction of an original manual and it is an excellent source of information on using your hitch and covers General Descriptions, and Specifications. The Service Manual gives the hitch owner instructions on the following:
International Harvester Testing and Servicing of Hitch Components I – 424 and B – 414 Series Tractors
Special Service Tools Required
Testing of Hitch components
Servicing of Hitch Components through the Top Cover
General Removal
Draft Control Spool Safety Linkage
Main Relief and Non-Return Valve
General Reassembly
Please also consider ordering the Operations and Parts Manual for your hitch if available. These manuals will be very helpful when working, maintaining, and operating your hitch.
