Part of the John Deere Repair Manuals.
This is the complete John Deere factory diagnostic and repair manual (TM2147) for the 1420, 1435, 1445, 1545 and 1565 Series II front mowers. Across 1,660 pages it covers the gasoline engine on the 1420 and three generations of Yanmar diesel on the 1435 through 1565 - the 3TNE74, 3TNV76 and 3TNV80 on the mid-range units and the 3TNV82A and 3TNV88 on the 1545 and 1565. The manual walks through every major system: engine repair and adjustments, the full electrical system with wiring schematics and harness routing, the hydrostatic power train (both standard and 2-speed), hydraulic schematics and valve repair, steering, brakes, attachments, and cab systems including air conditioning. It is the same reference a John Deere dealer technician uses, with test pressures, torque values and diagnostic flowcharts called out system by system.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Specifications and Information | Specifications, General Information, Interlock System | |
| Engine (Gasoline, 1420) | Specifications, Carburetor System, Ignition System, Diagnostics, Tests and Adjustments, Repair | |
| Diesel Engine (3TNE74, 3TNV76, 3TNV80) | Specifications, Fuel Injection, Injection Pump, Diagnostics, Tests and Adjustments, Repair | |
| Diesel Engine (3TNV82A, 3TNV88) | Specifications, Theory of Operation, Diagnostics, Tests and Adjustments, Repair | |
| Electrical | Specifications, Tools and Materials, General Information, Component Location, Schematics and Harnesses, Operation and Diagnostics, Tests and Adjustments, Repair, Cab, Cab Blower and Air Conditioner, MCS600 Plus | |
| Power Train | Specifications, Component Location, Diagnostics, Tests and Adjustments, Repair | |
| Power Train (2 Speed) | Specifications, Tools and Materials, Component Location, Diagnostics, Tests and Adjustments, Repair | |
| Hydraulics | Specifications, Tools and Materials, Component Location, Schematics, Theory of Operation, Diagnostics, Tests and Adjustments, Repair | |
| Steering | Specifications, Component Location, Theory of Operation, Diagnostics, Tests and Adjustments, Repair | |
| Brakes | Specifications, Component Location, Theory of Operation, Brake System Diagnostics, Tests and Adjustments, Repair | |
| Attachments | Specifications, Diagnostics, Tests and Adjustments, Repair | |
| Miscellaneous | Specifications, Tools and Materials, Component Location, Theory of Operation, Air Conditioning Diagnostics, Tests and Adjustments, Repair |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 1420, 1435, 1445, 1545, 1565 Series II | ||
| Engine Make (all models) | John Deere/Yanmar | |
| 1420 | ||
| Engine Model (1420) | 3TG72-JMA (4-cycle gasoline) | |
| Cylinders (1420) | 3 | |
| Bore x Stroke (1420) | 72 x 72 mm (2.84 x 2.84 in.) | |
| Displacement (1420) | 879 cm3 (53.6 cu-in.) | |
| Maximum Torque (1420) | 64.5 N.m (47.6 lb-ft) at 2300 rpm | |
| 1435, 1445 | ||
| Diesel Engine Models (1435, 1445) | 3TNE74, 3TNV76, 3TNV80 (Yanmar) | |
| 1545, 1565 | ||
| Diesel Engine Models (1545, 1565) | 3TNV82A, 3TNV88 (Yanmar) | |

















