John Deere 820 Tractors Technical Manual (TM4212)

Table of Contents:
   GENERAL INFORMATION
      Specifications
      Pre-delivery, delivery and after-sales inspections
      Lubrication and adjustment
      Engine and tractor tune-up and adjustment
      Separation
   ENGINE
      General information, diagnosing malfunctions
      Cylinder head and camshaft
      Cylinder block, liners, pistons and connecting rods
      Crankshaft, main bearings and flywheel
      Timing gear train
      Oil pump, oil pressure regulating valve and oil filter
      Engine cooling system
      Speed control linkage
   FUEL SYSTEM
      Diagnosing malfunctions
      Fuel tank, transfer pump, fuel filters
      BOSCH injection pump
      ROTO DIESEL injection pump
      ROOSA MASTER MODEL CB injection pump
      ROOSA-MASTER injection nozzles
      BOSCH injection nozzles
      Cold weather starting aids
   ELECTRICAL SYSTEM
      Diagnosing malfunctions
      "BILUX" lighting system
      Sealed-beam lighting system (from tractor serial no. 77054 L0
      Sealed-beam lighting system (up to tractor serial no. 77053 L)
      Starting motor
      Alternator and regulator
      Generator and regulator
   POWER TRAIN
      Engine dual-stage clutch and clutch linkage
      Collar-shift transmission
      Differential assembly
      Final drives
      PTO shafts
   FRONT AXLE, STEERING SYSTEM AND BRAKES
      Front axle
      Manual and power steering
      Brakes
   HYDRAULIC SYSTEM
      General information, diagnosing malfunctions, pressure tests
      Oil reservoir, filter and valves
      Hydraulic pump and transmission oil pump
      Rockshaft
      Selective control valve
   MISCELLANEOUS
      Belt pulley
      DE LUXE seat
      Front wheels