Description

John Deere 2120 Tractor Technical Manual (TM4252)

John Deere 2120 Tractor INDEX:

SECTION 10 — GENERAL INFORMATION
5 Specifications
IO Pre-delivery, delivery and after-sales inspections
15 – Lubrication and service
20 – Engine and tractor tune-up and adjustment
25 – Removal and installation of assemblies
SECTION 20 — ENGINE
5 – General information, diagnosing malfunctions
IO – Cylinder head, camshaft and balancer shafts
15 – Cylinder block, liners, pistons and connecting rods
20 – Crankshaft, cmnkshaft bearings and flywheel
25 – Timing gear train
30 • Oil pump, oil pressure regulating valve and oil filter
35 – Engine cooling system
40 – Speed control
SECTION 30 — FUEL SYSTEM
5 – Diagnosing malfunctions
IO – Fuel tank, transfer pump, fuel filters
15 – ROTO-DIESEL injection pump
20 – ROOSA-MASTER injection nozzles
25 – Cold weather starting aids
SECTION 40 — ELECTRICAL SYSTEM
5 – Diagnosing malfunctions
10 – Components and wiring diagrams

SECTION 50 — POWER TRAIN
5 – Engine clutch and clutch linkage
10 – HIGH-LOW shift unit
15 – Transmission
20 – Differential assembly
25 – Final drives
30 – Continuous-running power shaft
35 – Independent power shaft
SECTION 60 — FRONT AXLE, STEERING AND BRAKES
5 – Front axle
10 – Steering
15 – Brakes
HYDRAULIC SYSTEM
5 – General information, diagnosing malfunctions, pressure tests
10 – Oil reservoir, filter, valves and oil cooler
15 • Hydraulic pump and transmission oil pump
20 – Rockshaft
25 • Selective control valves (spool type)
30 – Selective control valve (poppet valve type)
35 • Remote hydraulic cylinder
SECTION 80 — MISCELLANEOUS
5 – Belt pulley
10 – DE LUXE seat
15 – Front and rear wheels
Hydraulic hitch
25 – Roll guard

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