________________________________________________________________________________

John Deere Z840A Zero Turn Mower Specs

John Deere Z840A Engine

Engine Model ................ Kawasaki FD731V
Engine Type ................ 4-cycle vertical shaft V-twin OHV liquid-cooled gasoline engine
Number of Cylinders ................ 2
Cylinder Liners ................ Cast iron
Displacement, cu.in (cc) ................ 41.2 (675)
Cylinder Bore, in (mm) ................ 2.96 (75.2)
Piston Stroke, in (mm) ................ 2.99 (76.0)
Rated Engine Power, hp (kW) ................ 26.0 (19.4)
Rated Engine Speed, rpm ................ 3600
Maximum Torque, Nm (ft-lb) ................ 57.7 (42.6)
Torque Speed, rpm ................ 2400
Compression Ratio ................ 8.5:1
Fuel System ................ Carburetor
Caburetor Model ................ Mikuni BW26
Carburetor Type ................ Float with fixed main jet
Fuel Pump Type ................ Diaphragm type pulse pump
Governor Type ................ Mechanical
Fuel Type ................ Gasoline (86 or higher)
Lubrication System ................ Pressure feed by positive displacement pump
Cooling System ................ Forced-air
Oil Filter ................ Cartridge type full flow
Air Cleaner ................ Dual stage element
Ignition System ................ Electronic
Spark Plug Type ................ NGK BPR2ES
Spark Plug Gap, in (mm) ................ 0.030 (0.76)
Coil Air Gap, in (mm) ................ 0.0099-0.0158 (0.25-0.40)
Fuel Tank Capacity, gal (L) ................ 11.8 (44.5)
Oil Capacity, qts (L) ................ 2.3 (2.4)

Electrical System

Electrical System Rating, Volts ................ 12
Charging System ................ Alternator
Alternator Rating, Amps ................ 15
Starting System ................ Electric starter

Power Take Off

PTO Operational Type ................ Independent
PTO Clutch ................ Electric
PTO Drive Type ................ Belt-driven

John Deere Z840A Transmission

Transmission Type ................ Hydrostatic
Number of Forward Gears ................ Infinite
Number of Reverse Gears ................ Infinite
Oil Capacity, qts (L) ................ 2.9 (2.7)
Maximum Forward Speed, mph (kph) ................ 12.0 (19.3)
Maximum Reverse Speed, mph (kph) ................ 6.0 (9.6)

Wheels and Tires

Drive Wheels ................ 2WD 4x2
Steering Configuration ................ Front steer
Steering System ................ Power
Front Tire Size ................ 13x6.50-6
Rear Tire Size ................ 24x12.00-12

Dimensions and Weight

Wheelbase, in (mm) ................ 53 (1340)
Overall Length, in (mm) ................ 85 (2150)
Overall Heigth (ROPS Up), in (mm) ................ 73 (1850)
Overall Heigth (ROPS Folded), in (mm) ................ 47 (1190)
Weight (54" Deck), lb (kg) ................ 1320 (598)
Weight (60" Deck), lb (kg) ................ 1345 (610)

Mower Deck

Mower Deck Type ................ Mid-mount, right-discharge
Cutting Width, in (mm) ................ 54 (1370)
Overall Width, in (mm) ................ 69 (1750)
Cutting Height, in (mm) ................ 1.5-5.0 (37-127)
Number of Blades ................ 3
Blade Engagement ................ Electric
Lift System ................ Mechanical

Mower Deck Type ................ Mid-mount, right-discharge
Cutting Width, in (mm) ................ 60 (1520)
Overall Width, in (mm) ................ 73 (1875)
Cutting Height, in (mm) ................ 1.5-5.0 (37-127)
Number of Blades ................ 3
Blade Engagement ................ Electric
Lift System ................ Mechanical