Part of the John Deere Repair Manuals.
This is the complete technical manual for the John Deere 4040 and 4240 Sound-Gard tractors built from 1978 to 1982, and it is the combined book - both the repair half and the operation-and-tests half in one 1,100-page volume. That matters, because the repair sections walk you through teardown and assembly of the engine, Quad-Range and Power Shift transmissions, hydraulics, brakes and cab, while the back half gives you the theory, pressure tests, diagnosis charts and full electrical wiring diagrams you need to find the fault before you pull anything apart. Covers both models separately where they differ: the 4040 with its 404 cu. in. (6.6 L) engine at 90 PTO hp, the 4240 with the 466 cu. in. (7.6 L) at 110 PTO hp.
What's Inside This John Deere 4040-4240 Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 4-77 | General Specifications, Machine and Engine Specs, Capacities, Torque Values, Special Tools |
| Engine Repair | 78-139 | Engine Teardown and Assembly, Cylinder Head, Pistons, Crankshaft, Camshaft |
| Fuel and Air Repair | 140-173 | Fuel Injection Pump, Nozzles, Filters, Air Intake, Turbocharger |
| Electrical Repair | 174-221 | Alternator, Starter, Batteries, Lighting, Gauges, Wiring Repair |
| Power Train Repair | 222-379 | Clutch, Quad-Range and Power Shift Transmission, Differential, Final Drives |
| Steering/Brakes Repair | 380-409 | Power Steering, Steering Valve, Brakes, Brake Valve |
| Hydraulic Repair | 410-491 | Hydraulic Pump, Rockshaft, Selective Control Valves, Hitch |
| Miscellaneous | 492-505 | Frame, PTO, Three-Point Hitch, Miscellaneous Components |
| Operator Station Repair | 506-573 | Sound-Gard Cab, Seat, HVAC, Controls, Instruments |
| Miscellaneous Options | 574-587 | Optional Equipment and Attachments |
| Engine Operation and Diagnosis | 588-627 | Engine Operation Theory, Diagnosis, Compression and Timing Tests |
| Electrical Operation and Tests | 628-801 | Electrical System Operation, Wiring Diagrams, Charging and Starting Tests, Component Tests |
| Power Train Operation and Tests | 802-923 | Transmission and Hydraulic Clutch Operation, Pressure Tests, Diagnosis |
| Hydraulic Operation and Tests | 924-1051 | Hydraulic System Operation, Pump and SCV Pressure Tests, Rockshaft Tests |
| Operator Station Operation and Tests | 1052-1108 | Cab HVAC and Electrical Operation and Tests |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 4040 | ||
| PTO horsepower, 4040 | 90 hp (67 kW) | p. 4 |
| Engine bore and stroke, 4040 | 4.25 x 4.75 in. (108 x 121 mm) | p. 4 |
| Engine displacement, 4040 | 404 cu. in. (6.6 L) | p. 4 |
| 4240 | ||
| PTO horsepower, 4240 | 110 hp (82 kW) | p. 4 |
| Engine bore and stroke, 4240 | 4.56 x 4.75 in. (116 x 121 mm) | p. 4 |
| Engine displacement, 4240 | 466 cu. in. (7.6 L) | p. 4 |
| both | ||
| Engine slow idle speed | 800 rpm | p. 4 |
| Engine working speed range | 1500 to 2200 rpm | p. 4 |
| Engine valve clearance Intake | 0.018 in. (0.46 mm) | p. 4 |
