seed planter diagram of a planter International 56 Planter (Four-Row) Operator's Manual

seed planter diagram of a planter International 56 Planter (Four-Row) Operator's ManualInternational 56 Planter (Four Row) Operator's Manual This is the Operator's Manual for the International Harvester 56 four row planter, covering setup, seed plate selection, planting depth adjustment, fertilizer unit operation, marker adjustment, optional equipment, lubrication, and specifications across 60 pages. This is the original factory document IH issued to 56 planter owners and is available as an instant digital download. About the

International 56 Planter (Four-Row) Operator's Manual

This is the Operator's Manual for the International Harvester 56 four-row planter, covering setup, seed plate selection, planting depth adjustment, fertilizer unit operation, marker adjustment, optional equipment, lubrication, and specifications across 60 pages. This is the original factory document IH issued to 56 planter owners and is available as an instant digital download.

About the International Harvester 56 Planter

The International Harvester 56 was a toolbar-mounted unit planter produced through the 1960s and into the 1970s, designed for 4-row corn and grain sorghum planting in the standard row spacings of that era. It used a rotary valve metering system — a distinct IH design in which a rotating valve controlled seed flow from the hopper into the seed tube, timed to coordinate with hill spacing in hill-drop planting mode. The 56 also supported drill planting mode for crops like soybeans where continuous rather than spaced seed drop was required. Seed plate selection was critical on IH planters of this era: the 56 used interchangeable plates and filler rings that had to be matched to seed size and shape for each crop — the seed plate and distribution tables in this manual are the primary reference for getting those settings correct. The 56 was widely used across the Corn Belt and Great Plains on Farmall and IH utility tractors, and the fertilizer unit attachment was commonly fitted to apply starter fertilizer in-furrow or to the side at planting. Many 56 planters remain in service on small acreage operations today, and the manual is particularly valuable for restorers and operators who acquired the planter without documentation.

What This Manual Covers

This 60-page manual covers the IH 56 from basic adjustments through full attachment setup, with separate coverage for both hill-drop and drill planting configurations. Key sections include:

• Adjusting & Operating — beet, corn, grain sorghum, soybean, and drilling applications; seed plates and distribution tables; hill-drop planter equipment and settings; planting depth, row widths, and spacing; fertilizer unit operation and settings; marker operation and adjustment; transporting and leveling the planter
• Lubrication — lubrication points and service intervals
• Setting Up — initial setup and configuration procedures
• Special Equipment — double disk openers and fertilizer openers; depth bands, gauge shoes, and press wheels; rubber press wheel tires and scrapers; seed firming wheels and safety equipment; rotary hoe strip tillage attachment; spring tooth tillage attachment
• Specifications — factory-specification settings and reference data

Why This Manual Matters

• Seed plate and distribution table reference: Selecting the correct seed plate and filler ring combination for each crop and seed size is the foundational setup task on the IH 56 — the factory distribution tables in this manual are the authoritative reference for matching plate to seed and dialing in target populations
• Rotary valve metering system documentation: The IH rotary valve metering mechanism operates differently from John Deere cell-type or Ford seed disc systems, and the setup and timing procedures specific to IH's design are documented here — information that generic planter resources won't cover
• Hill-drop and drill planting configurations: Both planting modes require different equipment setups, and the manual documents each separately — including the specific plate, hopper, and timing changes required when switching between hill-drop corn planting and drill soybean planting
• Fertilizer unit setup and calibration: Starter fertilizer placement at planting was common practice on Corn Belt operations running IH 56 planters, and the fertilizer unit operation and adjustment procedures are fully documented here
• Tillage attachment documentation: The rotary hoe strip tillage and spring tooth tillage attachments are covered — options for operators running the 56 in minimum-tillage or strip-till configurations that weren't the norm when this manual was written but became common as these planters aged
• Original factory content: This is the manual IH issued to 56 planter owners, carrying manual code 1 083 157 R2 (Rev. 3)

Manual Code: 1 083 157 R2 (Rev. 3)

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