1969–1971 IH Cub Cadet 73, 106, 107, 126, 127 & 147 Tractor Service Manual Set with Revision No. 1 (P/N GSS-1404)

The appended revision updates procedures in the main manual, including dynamic balance gear timing, clutch access, hydrostatic service, and front PTO installation. Its replacement pages apply to the corresponding sections retained earlier in the file.

Motor-generator coverage includes brush service and test specifications. Further bench testing is referred to separate Service Manual GSS-1052-C, which is not included.

PDF Search, Bookmarks and Wiring Detail

Page navigation and diagram detail: PDF text search is not available. Embedded bookmarks cover individual pages but use image filenames rather than chapter names. Small wiring labels benefit from zooming; the electric starting diagram is stored sideways.

One printable English-language PDF contains 155 pages total, including the original covers and front matter, the hydrostatic foldout, and the appended revision pages with their cover.

Engine Overhaul, Drive Systems and IH Equipment

These selected service topics outline the coverage. Other reference material includes a bolt type identification chart and standard fastener torque tables.

• Engine repair: Engine removal, disassembly, cylinder inspection and reboring, piston and connecting-rod service, valve work, and Model 147 dynamic balance gear timing.

• Fuel and governor controls: Carburetor disassembly, cleaning, float and mixture adjustments, plus model-specific throttle linkage and governor settings.

• Gear-drive powertrain: Clutch overhaul, reduction-drive service, transmission and differential disassembly, rear axle repair, and creeper-drive procedures.

• Hydrostatic transmission: Unit removal, pump and motor overhaul, charge pump and relief valve service, check valve replacement, and neutral linkage adjustment.

• Steering and brakes: Steering assembly refurbishment, front axle and wheel-bearing service, brake inspection, pedal adjustment, and brake equalization.

• Electrical and lift systems: Battery ignition, motor-generator maintenance, current-voltage regulator adjustments, wiring diagrams, and electric power lift troubleshooting and repair.

• Mounted equipment: Mower spindle and blade service, belt and leveling adjustments, snow thrower gearbox information, and International 1 rotary tiller service.

The foreword identifies International Harvester dealers and their factory-trained service technicians as the intended users of these instructions and special tools.

Kohler Engine and Fuel System Repair

The engine chapter covers internal inspection and reassembly, including cylinder wear, piston rings, connecting rods, valve seats and guides, and crankshaft end clearance. Its compression-check section explains how Automatic Compression Release affects testing.

Seal installation references identify rear seal protector FES 54-4, front seal protector FES 54-5, and seal driver FES 54-6 for the K-161 engine.

The exploded carburetor view supports parts identification during service. The carburetor instructions also warn that forcing the mixture screws into their seats can damage them.

Transmission Overhaul and Chassis Work

Step-by-step instructions cover splitting and recoupling both gear-drive and hydrostatic tractors. The rear axle cross-section, exploded steering assembly, and tooth bearing pattern views support component identification and assembly checks.

Differential procedures connect bearing preload, shim selection, backlash, and tooth contact patterns. These factory references help assess gear mesh during final assembly.

Hydrostatic coverage explains the variable-displacement pump and fixed-displacement motor, then details internal inspection and reassembly. A dimensioned wooden holding-fixture drawing supports workshop preparation.

The disassembly cautions address pump and motor pistons that can fall from their cylinder blocks and be damaged. Revision No. 1 adds charge-pump orientation and trunnion-pin removal notes.

Whenever splitting the tractor chassis or overhauling the front axle, brakes, and PTO units, secure the machinery with rated support equipment and consult a certified professional if you lack heavy equipment repair experience.

Electrical Diagnosis and Electric Lift Service

Electric starting, lighting, and electric lift wiring diagrams show circuit connections and wire colors. Regulator service covers contact points, cut-out relay adjustments, air gaps, and voltage settings.

Electric lift troubleshooting distinguishes wiring, switch, motor, and mechanical binding faults. Mechanical repair extends to the brake cam and springs, screw and lifting nut, bearings, and spiroid gear; the lift motor is serviced as a complete unit.

Mower, Snow Thrower and Rotary Tiller

Mower procedures cover spindle disassembly, bearing inspection, blade sharpening, belt tension, and deck leveling. A spindle rotor housing cross-section shows the bearing and spacer arrangement.

Snow thrower service information focuses on the gearbox. International 1 rotary tiller coverage addresses tine replacement and orientation, along with gearbox bearings, gears, and seals.

Examples of Differential, Hydrostatic and PTO Clearances

Differential setup specifies 0.003–0.005 in. bevel pinion-to-drive-gear backlash, with tooth bearing patterns illustrating the contact check.

For the hydrostatic pump and motor block assemblies, piston slipper thickness must remain within 0.002 in. across each assembly. New center-section needle bearings project 0.100 in. above the machined surface to pilot the valve plates.

Revision No. 1 specifies 0.060–0.070 in. between the front PTO wear button and thrust button with the hand lever forward and the clutch fully engaged.