John Deere Z820A Engine
Engine Model ……………. Kawasaki FH721V
Engine Type ……………. 4-cycle V-Twin cylinder vertical shaft OHV air cooled gasoline engine
Number of Cylinder ……………. 2
Cylinder Layout ……………. 90 deg, V-Twin
Displacement, cu.in (cc) ……………. 41.2 (675)
Cylinder Bore, in (mm) ……………. 2.96 (75.2)
Piston Stroke, in (mm) ……………. 2.99 (76.0)
Engine Power, Hp (kW) ……………. 25.0 (18.6)
Rated Engine Speed, rpm ……………. 3600
Maximum Torque, Nm (ft-lb) ……………. 56 (41.3)
Torque Speed, rpm ……………. 2400
Compression Ratio ……………. 8.1:1
Compression Release ……………. Automatic
Direction of Rotation ……………. Counterclockwise (PTO Shaft)
Choke Control ……………. Automatic (throttle control)
Fuel System ……………. Carburetor
Carburetor Type ……………. Float with fixed main jet, twin barrel
Fuel Pump Type ……………. Diaphragm type pulse pump
Governor Type ……………. Mechanical
Lubrication System ……………. Pressure feed by positive displacement pump
Oil Filter Type ……………. Cartridge type full flow filter
Air Cleaner Type ……………. Dual stage element, dry type
Cooling System ……………. Forced air cooled
Ignition System ……………. Flywheel magneto transistor type
Starting System ……………. Electric starter
Fuel Tank Capacity, gal (L) ……………. 11.8 (44.5)
Oil Capacity, qts (L) ……………. 1.8 (1.7)
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 Z820A 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) ……………. 10.0 (16.0)
Maximum Reverse Speed, mph (kph) ……………. 5.0 (8.0)
Wheels and Tires
Drive Wheels ……………. 2WD 4×2
Steering Configuration ……………. Front steer
Steering System ……………. Power
Front Tire Size ……………. 13×6.50-6
Rear Tire Size ……………. 24×12.00-12
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 (48″ Deck), lb (kg) ……………. 1274 (577)
Weight (54″ Deck), lb (kg) ……………. 1300 (590)
Mower Deck
Mower Deck Type ……………. Mid-mount, right-discharge
Cutting Width, in (mm) ……………. 48 (1215)
Overall Width, in (mm) ……………. 62 (1570)
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) ……………. 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