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Ford 8N-8NAN User Manual

Ford 8N-8NAN
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Ford 8N-8NAN Specifications

General IconGeneral
ManufacturerFord
Model8N-8NAN
CategoryTractor
Engine TypeGasoline
Transmission4-speed manual
Production Years1947-1952
Displacement119.7 cu in (2.0 L)
Fuel Capacity10 gallons (37.9 liters)

Summary

FRONT AXLE

Spindle Bushings

Procedure for rebushing axle spindles, including removing and installing new bushings.

Axle Pin Bushing

Steps for removing and replacing the axle center pin bushing to ensure proper alignment.

STEERING SYSTEM

Adjustment & Overhaul (2N-9N)

Guidance on adjusting steering gear backlash and performing a complete overhaul.

Sector Mesh Adjustment (8N)

Method for adjusting sector mesh backlash on Model 8N tractors for proper steering.

Worm Shaft Bearing Adjustment (8N)

Procedure to adjust worm shaft bearing end play on Model 8N tractors.

Overhaul Procedures (8N)

Detailed steps for overhauling the steering gear unit on Model 8N tractors.

Model 8N Steering Adjustment

Specific adjustment steps for later Model 8N tractors after serial 216988.

Sector Arms Backlash

Procedure for adjusting sector arm backlash after wormshaft bearings are set.

ENGINE AND COMPONENTS

Engine and Clutch Removal

Procedure for removing and reinstalling the engine and clutch as a unit.

Cylinder Head Servicing

Steps for removing and reinstalling the engine cylinder head, including tightening.

Valve Train Service

Servicing of engine valves, including guides, seats, springs, tappets, and rotators.

Timing Gears and Camshaft

Procedures for timing gear cover removal and camshaft installation/removal.

Piston, Rod, and Sleeve Assembly

Service for pistons, connecting rods, rings, sleeves, and pins.

Crankshaft and Bearings

Details on crankshaft bearing service, oil seals, and journal specifications.

Engine Accessories

Servicing of flywheel, oil pump, oil pan, and carburetor systems.

GOVERNOR

Governor Operation and Adjustment

Details on the governor's function and procedures for setting engine speed limits.

Governor Overhaul

Steps for disassembling, inspecting, and reassembling the engine governor unit.

ELECTRICAL AND IGNITION SYSTEM

Generator and Regulator

Information on generator types, voltage regulator settings, and cut-out relay adjustments.

Starter Motor & Switch

Details on the Ford starter motor and switch assembly, including its function.

Battery Ignition System

Explanation of the battery ignition system and distributor mounting.

Engine Timing Adjustment

Procedure for setting the engine timing using the distributor and timing marks.

Distributor Overhaul

Steps for overhauling the distributor, including cleaning and renewing parts.

MAGNETO IGNITION SYSTEM

Magneto Ignition System

Description of the magneto ignition system used on some 2N tractors.

Magneto Timing

Procedure for timing the magneto by aligning the impulse coupling trip point.

Drive Adapter Overhaul

Steps for overhauling the magneto drive adapter assembly.

CLUTCH

Clutch Adjustment

Adjusting the clutch pedal free travel for proper engagement and disengagement.

Clutch Removal and Reinstall (Models 2N-9N)

Procedures for removing and reinstalling the clutch assembly from the tractor.

Clutch Removal and Reinstall (Model 8N)

Procedures for removing and reinstalling the clutch assembly from the tractor.

TRANSMISSION

Transmission Removal

Steps for draining and separating the transmission unit from the tractor.

Gear Shifter Mechanism Service

Service procedures for shifter rails, forks, and related components.

Mainshaft Service

Procedures for overhauling the mainshaft, including bearing adjustment.

Main Drive Gear Service

Procedure for removing and servicing the main drive gear (clutch shaft).

Countershaft Service

Service procedures for the countershaft, including bearing adjustment.

Reverse Idler Gear Service

Procedure for removing and reinstalling the reverse idler gear.

DIFFERENTIAL, BEVEL GEARS & REAR AXLE

Differential Removal

Steps for removing the differential unit from the rear axle center housing.

Differential Overhaul

Procedures for overhauling the differential, including case and gear servicing.

Main Drive Bevel Gears

Information on removing and servicing the main drive bevel pinion and ring gear.

Bevel Ring Gear Removal

Procedure for removing the bevel ring gear from the tractor.

Adjust Axle Bearings

Steps for adjusting axle shaft bearings for proper end play.

Renew Axle Bearings

Procedure for renewing wheel axle shaft bearings.

POWER TAKE-OFF UNIT

External Shaft Service

Procedure for removing and overhauling the PTO external shaft.

Shifter Unit Service

Steps for removing the PTO shifter and front bearing unit.

Belt Pulley Unit Service

Procedures for removing, overhauling, and installing the belt pulley unit.

HYDRAULIC LIFT SYSTEM

Lift Control Adjustments

Adjusting quadrant and control springs for proper lift arm operation.

Spring Adjustments

Adjusting constant draft and position control springs for precise implement control.

Lift Cover Assembly Service

Procedures for removing, disassembling, and overhauling the lift cover assembly.

Hydraulic Lift Troubleshooting

Diagnosing and resolving common problems with the hydraulic lift system.

Hydraulic Pump Service

Procedures for removing, installing, testing, and overhauling the hydraulic pump and its components.

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