John Deere 110 & 112 Lawn and Garden Tractors Service Manual – Comprehensive Service & Repair Procedures 1963-1967

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Document Details

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Document Number / Seller:
30038 / Jessica Gonzalez
File Size:
154.26 MB
File Type:
PDF
Language:
English
Pages:
330
Printable:
Yes
Category:
Lawn and Garden Tractor
Last updated / verified
Feb 10, 2026

Models Covered & Key Technical Specifications

  • 110 (1963-1967)
  • 110H (1966-1967)
  • 112 (1966-1967)
  • 112H (1966-1967)

Professional Workshop Service Manual & Technical Specifications

John Deere 110 / 112 Lawn & Garden Tractor Service Manual (Serial No. -100,000)

Keep your vintage John Deere equipment in peak operating condition with this professional-grade Service Manual (SM-2059). Specifically designed for the legendary "Round Fender" era, this manual provides comprehensive repair and maintenance procedures for the early 110 and 112 series. Whether you are a restorer or a dedicated owner, this document offers the technical depth required to maintain the value and performance of your classic tractor.

Scope boundary and fit logic

  • Covered tractors: John Deere 110 and 112
  • Serial boundary used as the primary gate: Serial No. -100,000
  • Coverage is structured to keep 110 vs. 112 content distinct by engine platform and drivetrain grouping

Vintage mapping and serial-range tables

The manual includes vintage mapping tables that link model year groups to serial-number ranges and engine families, allowing scope confirmation from the tractor ID plate rather than assumptions. These tables also track configuration differences by vintage group (including transaxle speed/reverse counts where applicable).

Engine platform segmentation

Coverage is separated by engine family rather than blended into a single generic section:

  • 110 track: Kohler engine families (K161S / K181S variants) with system-indexed subgroups
  • 112 track: Tecumseh HH100 track with parallel group structure for spec and component coverage

Electrical spec layer (numeric, not just “wiring”)

The electrical system pages include measurable specification tables and acceptance ranges, including:

  • Spark plug gap values separated by engine family
  • Breaker point gap reference values
  • Battery system baseline and ignition/charging reference datasets
  • Coil output / resistance-style values presented as numeric ranges

Manual organization (section + group structure)

The table of contents follows a classic “section + group” service-manual layout:

  • General information, identification, specifications, fuel/lubricants reference
  • Engine sections split by Kohler vs. Tecumseh coverage
  • Electrical system groups (charging, ignition, starting, instruments)
  • Power train groups (clutch, variable-speed transmission, gear transmission)
  • Hydraulics and additional equipment groups (front axle/wheels, lift linkage, special equipment)

Data artifacts included (reference-only)

  • Tractor identification code tables and serial-plate decoding formats
  • Engine spec tables (displacement/bore-stroke/rated speed families) and capacity tables
  • Torque datasets (bolt torque chart plus set-screw seating torque chart)
  • Configuration boundary tables tied to serial-number bands

Technical data table (spec-style)

Technical marker 110 (Kohler track) 112 (Tecumseh track)
Engine family identifiers K161S / K181S (-HP variants) HH100
Spark plug gap 0.025 in 0.030 in
Breaker point gap 0.020 in 0.020 in
Electrical baseline 12 V system reference 12 V system reference
Scope gate Serial No. -100,000 Serial No. -100,000

FAQ

**Which "Round Fender" era configurations are supported in the 110 & 112 service archive?** keyboard_arrow_down

A: This professional-grade service manual (SM-2059) provides exhaustive mechanical documentation for the early John Deere 110 and 112 series, including the 110H and 112H hydraulic lift variants. It specifically addresses the diagnostic requirements for the 1963–1967 production years, ensuring all technical values and component specs for units up to serial number 100,000 are fully recorded.

**How do I perform effective engine mastery and governor adjustments?** keyboard_arrow_down

A: Identify the exact cylinder head, valve, and piston benchmarks within the engine sections to isolate mechanical failures. The manual provides step-by-step procedures for the Kohler K161S/K181S and Tecumseh power units, enabling restorers to identify the root cause of performance issues with factory-certified precision for the 1963–1967 series.

**Determine the necessary steps for maintaining the power train and transaxle?** keyboard_arrow_down

A: Identify the precise instructions for variable speed drive adjustments and brake servicing within the power train groups to maintain machine reliability. The documentation covers both 3-speed and 4-speed transaxle configurations, providing authoritative guidance for troubleshooting clutch mechanisms and drivetrain components across the "Round Fender" lineup.

**Identify the electrical system diagnostics and coil schematic locations?** keyboard_arrow_down

A: Tool-ID "John Deere Electrical Reference" is essential for troubleshooting the ignition system, charging circuit, and condenser/coil construction as detailed in the technical chapters. The data provides expert insights into wiring diagrams and integrated electrical accessories, facilitating more effective fault isolation within the tractor's vintage electrical network.

**What are the key technical specifications for hydraulic lift and steering overhaul?** keyboard_arrow_down

A: Tool-ID "Gonzalez Technical Reference" must be used to verify control valve and pump assembly service procedures for "H" models as found in the factory-style guide. The handbook encompasses the entire service journey, providing critical protocols for steering linkage maintenance and front axle alignment to ensure the precise handling and implement operation of the classic John Deere fleet.

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Reviews (4)

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New
The layout of this manual is fantastic. It covers everything you need to know about the 110 and 112 models. Perfect for both beginners and pros!
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I appreciate how thorough this manual is. The troubleshooting section saved me a lot of time. Also, the email support was prompt and helpful!
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This manual is a lifesaver for anyone working on John Deere tractors. The detailed illustrations make it easy to follow the instructions. Highly recommend!
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I had a question before purchasing and the support team responded quickly. The download process was seamless and the manual is very informative!