1966 International Cub Cadet 71, 102, 122 & 123 Tractor Service & Repair Manual with IH Equipment (Form No. GSS-1369)

International Harvester’s Blue Ribbon Service Manual GSS-1369, issued in July 1966, covers the International Cub Cadet 71, 102, 122 and 123 tractors and the IH equipment described in its implement section.

PDF Navigation and Page Details

Text search and navigation: PDF text search is not available. Embedded bookmarks labeled ServiceManual001 through ServiceManual093 link to individual pages rather than named chapters. Small labels in the ignition wiring diagrams are legible when enlarged.

One printable, English-language 93-page PDF contains 33 engine pages, 46 chassis pages and 9 IH Equipment pages. The total includes five front/back matter pages: two covers, the foreword, general contents and a service bulletin record.

Engine Overhaul, Driveline Service and IH Implements

The selected topics below show the main service areas; the manual also covers breather assembly and condenser testing.

• Engine repair: Step-by-step procedures for engine removal, disassembly, cylinder-block reboring, crankshaft inspection, piston and rod assembly, valve service and automatic compression release.

• Fuel system and governor: Carburetor disassembly, cleaning, reassembly and adjustment, with separate governor and throttle-control information for the different engine configurations.

• Ignition and charging: Magneto and battery-ignition wiring diagrams, breaker-point service, ignition timing, motor-generator brush inspection and current-voltage regulator adjustments.

• Transmission and differential: Gear-transmission teardown, reduction-drive service, carrier-bearing preload and tooth-contact checks, plus Model 123 hydrostatic-unit removal, replacement and linkage adjustment.

• Chassis and PTO: Steering assembly overhaul, front axle and wheel-bearing service, clutch and brake adjustments, creeper-drive repair, front PTO clutch service and rear PTO assembly details.

• IH implements: Three-spindle mower disassembly, spindle inspection, blade sharpening and belt adjustment, together with CW-36 snow thrower gearbox information and International 1 rotary tiller service details.

Written for International Harvester dealers and their factory-trained service personnel, this manual assumes workshop knowledge and access to the specified tools and measuring equipment.

Kohler Engine Repair and Fuel-System Adjustment

The engine section provides teardown and reassembly references for the Kohler K-161, K-241 and K-301 engines. Inspection limits distinguish reusable components from parts requiring machining or replacement, with valve-clearance, crankshaft end-play and component-specific torque data alongside the procedures.

Engine assembly coverage includes camshaft timing marks, piston and connecting-rod orientation, valve-seat work and crankshaft oil seals. For the K-161, the seal-installation section identifies protector tools FES 54-5 and FES 54-4 and seal driver FES 54-6.

Carburetor adjustment information connects lean or rich running symptoms with mixture settings. Governor sections explain sensitivity and load-response behavior, supporting troubleshooting of surging or excessive speed drop under load.

Electrical Checks and Regulator Service

Separate schematic wiring diagrams distinguish magneto ignition from the battery-ignition circuit, including wire colors, switches, the ignition coil and motor-generator connections. These references support circuit tracing alongside the ignition and charging-system specifications.

Motor-generator coverage includes brush inspection and replacement; further testing requires specialized equipment and its accompanying instructions. Regulator coverage addresses contact points, cut-out relay settings and voltage adjustment. It cautions against sandpaper or emery cloth on the contacts and explains how incorrect regulator polarity shortens contact life.

Gear Drive, Hydrostatic Scope and Chassis Work

The selective sliding spur-gear transmission and differential sections cover internal disassembly, bearing inspection and reassembly. Rear-axle and powertrain cross-sections, tooth-bearing pattern illustrations and the Model 123 Snap Ring Thickness Chart support repair planning and interpretation of the required shimming and bearing settings.

Model 123 hydrostatic coverage is limited to linkage adjustment and unit removal and replacement; internal hydrostatic-unit servicing requires a separate manual that is not included. Differential repair remains covered.

Clutch, brake and steering sections provide linkage adjustments and component inspection procedures. Splitting instructions show front-axle stabilization, while recoupling notes address potential shaft, bearing and seal damage from misalignment.

Always ensure machine stability and disconnect the battery ground before beginning any heavy mechanical work to prevent accidental starter engagement.

Mower, Snow Thrower and Tiller Service

Mower coverage includes spindle bearings, seals, blade condition and drive-belt tension. Cross-sections distinguish the spindle arrangements used on the illustrated mower sizes, and the Main Drive Belt Adjustment Diagram shows the belt-checking reference.

CW-36 snow thrower coverage focuses on the gearbox. The International 1 rotary tiller section covers tine identification and timing, plus gearbox construction and seal replacement.

Examples of Gear-Backlash Specifications

For the gear-drive tractors, differential setup specifies bevel-gear and pinion backlash of 0.003–0.005 inch, paired with tooth-contact illustrations.

The CW-36 gearbox specification is 0.006–0.018 inch backlash. Its sectional view explains the bearing and snap-ring arrangement; gear backlash is predetermined during manufacture rather than adjusted with shims.