Illustrated Factory Diagnostic and Repair Technical Service Manual for John Deere 2WD or MFWD Tractors Models This manual contains high quality images, circuit diagrams, instructions to help you to maintenance, troubleshooting, diagnostic, and repair your truck.This document is printable, without restrictions, contains searchable text, bookmarks, crosslinks for easy navigation.Language: English Format: PDF, 1256 pages; Covered models: 1640 1840 2040 2040S Contents: SECTION 10 - GENERAL Group 00 Specifications and special tools Group 05 Pre-delivery, delivery and after-sales inspections Group 10 Lubrication and periodic service Group 15 Engine and tractor tune-up Group 20 Tractor separation (tractors without increased lifting capacity) Group 25 Tractor separation (tractors with increased lifting capacity) SECTION 20 - ENGINE Group 00 Specifications Group 05 Radiator SECTION 30 - FUEL AND AIR INTAKE SYSTEM Group 00 Specifications and special tools Group 05 Diagnosing malfunctions Group 10 Fuel tank and water trap Group 15 Cold weather starting aids Group 20 Speed control linkage Group 25 Air cleaner SECTION 40 - ELECTRICAL SYSTEM Group 00 Specifications and special tools Group 05 Description, diagnosing malfunctions and tests Group 10 Wiring harnesses Group 15 Controls and instruments Group 20 Lighting system Group 25 Wiring diagrams Group 30 Starting motor Group 35 Alternator SECTION 50 - POWER TRAIN Group 00 Specifications and specialtools Group 05 Description, operation and lubricating system Group 10 Clutch operating linkages Group 15 Engine clutches Group 20 Hi-Lo shift unit Group 25 Creeper transmission Group 30 Transmission shift linkage Group 35 Synchronized transmission and transmission oil pump Group 40 Collar shift transmission and transmission oil pump Group 45 - Differential Group 50- Final drives Group 55 Independent PTO Group 60 Continuous-running PTO Group 61 Front PTO Group 65 Mechanical front wheel drive SECTION 60 - STEERING SYSTEM AND BRAKES Group 00 Specifications and special tools Group 05 Hydrostatic steering (operating pressure: 12000 kPa; 120 bar; 1740 psi) Group 06 Hydrostatic steering (operating pressure: 15000 kPa; 150 bar; 2180 psi) Group 10 Power steering Group 15 Manual steering Group 20 Brakes SECTION 70 - HYDRAULIC SYSTEM Group 00 Specifications and special tools Group 05 Description, diagnosing malfunctions and pressure tests Group 10 Oil reservoir, filter, valves and oil cooler Group 15 Hydraulic pumps Group 20 Rockshaft Group 21 Front hitch Group 25 Selective control valves (spool type) Group 30 Selective control valves (poppet valve type) Group 35 Hose couplers Group 40 Remote cylinder Group 45 Selective control valves (for tractors manufactured in Spain) SECTION 80 - MISCELLANEOUS Group 00 Specifications and special tools Group 05 Front axle Group 10 Belt pulley Group 15 Front and rear wheels Group 20 Axla trailer hitch SECTION 90 - OPERATORS CAB Group 00 Specifications and special tools Group 05 Air conditioning system Group 10 Cab ventilation and heating Group 15 Operators seats Group 20 OPU cab Group 25 SG2 cab Group 30 Roll guard