Case IH 686 and Hydro 86 Tractors Operator's Manual

4.5 out of 5 (2 reviews)
SKU: CASEIH-686-HYDRO86-OM Category: CASE-IH
$21.99
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Operator's Manual (Reprinted, part number 1084556R2) for the 686 and Hydro 86 tractors, published under the Case and IH trademarks of Case Corporation. Covers serial number identification, controls, operating instructions, and full engine/drivetrain specifications for gasoline and diesel versions.

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Compatibility
  • Manufacturer: CASE-IH
  • Model: 686, Hydro 86

Description

Case IH 686 & Hydro 86 Tractors Operator's Manual

Operator's Manual (Reprinted, part number 1084556R2) for the 686 and Hydro 86 tractors. The copyright page states “1995 Case Corporation – CASE and IH are registered trade marks of Case Corporation,” and the text also references the original International Harvester dealer network.

Coverage Includes

  • Serial Numbers: Tractor, Hydro 86, Diesel engine, and ROPS serial number recording fields
  • Location of controls for both the 686 tractor and the Hydro 86 tractor (including Horn button switch, Hydro 86 only)
  • Ground speed charts (Direct Drive and Torque Amplifier, by gear range)
  • Fluid capacities: cooling system, crankcase with filter, fuel tank, rear frame
  • Engine specifications – Gasoline: IH C-291, 6-cylinder, 291 cu in (4.8L); Diesel: IH D-312, 6-cylinder, 312 cu in (5.1L)
  • Engine speeds, valve clearances, breaker point gap, spark timing (gasoline models)
  • Power Take-Off (PTO) shaft speeds at rated, high idle, and low idle
  • Clutch, foot brakes, and standard tire sizes

Format

PDF, English, 86 pages.

Specifications

ManufacturerCASE-IH
Model / Series686, Hydro 86
EngineIH C-291 Gasoline / IH D-312 Diesel, 6-cylinder
Manual TypeOperator's Manual (, Reprinted)
CoverageControls, Operating Instructions, PTO, Engine & Drivetrain Specifications
Manual NumberPart No. 1084556R2, 86 pages

Customer Reviews

4.5
Based on 2 reviews
Thomas Carter Sep 20, 2026

Useful Operator Reference

A helpful reference for checking tractor controls, operation, and routine maintenance information.

Robert Miller Sep 17, 2026

Easy to Follow

The manual is clear and well organized. I found the operating information I needed for my 686 quickly.

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