DOWNLOAD COMPLETE TECHNICAL MANUAL FOR JOHN DEERE 3040 AND 3140 TRACTOR | PUBLICATION NUMBER - TM4379

This comprehensive technical manual covers the John Deere 3040 and 3140 tractors, providing detailed specifications, operation procedures, and maintenance guidelines. The TM4379 manual delivers expert-level documentation essential for operators, technicians, and service professionals. Access complete information on engine performance, hydraulic systems, transmission operation, and troubleshooting protocols. Ideal for anyone requiring authoritative reference material for these classic John Deere models. Available in PDF format for convenient digital access and printing.

CONTENTS:
ENGINE
Specifications
Radiator
  FUEL AND AIR INTAKE SYSTEM
 Specifications and special tools
 General information, diagnosing malfunctions
 Fuel tank and water trap
 Cold weather starting aids
Speed control linkage
Air cleaner
ELECTRICAL SYSTEM
Specifications and special tools
Description, diagnosing malfunctions and tests
Wiring harnesses
Controls and instruments
Lighting systems
Wiring diagrams
Starting motor
Alternator
POWER TRAIN
Specifications and special tools
Description ,operation and lubricating system
Clutch operating linkages
 Engine clutches
Hi-Lo shift unit
Creeper transmission
 Transmission shift linkage
Synchronized transmission and transmission oil pump
Differential
Final drives
Independent PTO
Front PTO
Mechanical front wheel drive
STEERING SYSTEM AND BRAKES
Specifications and special tools
Hydrostatic Steering ( operating pressure: 12000 kPa; 120 bar; 1740 psi)
Hydrostatic Steering (operating pressure: 15000 kPa; 150 bar; 2180 psi)
Brakes
HYDRAULIC SYSTEM
Specifications and special tools
Description, diagnosing malfunctions and pressure tests
Oil reservoir, filter, valves and oil cooler
Hydraulic pumps
Rockshaft
Front hitch
Selective control valves ( spool type)
Selective control valves (poppet valve type)
Hose couplers
Remote cylinder
Selective control valves ( tractors manufactured in Spain)
MISCELLANEOUS
Specifications
Front axle
Belt pulley
Front and rear wheels
Axla trailer hitch
Trailer hitch (height adjustable)
OPERATOR'S CABS
Specifications and special tools
Air conditioning system
Ventilation and heating
Operator's seats
OPU cab
SG2 cab
Roil guard

TOTAL PAGE - 1373

FILE FORMAT - PDF
LANGUAGE - ENGLISH