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John Deere Z520A Zero Turn Mower Specs

John Deere Z520A Engine

Engine Model ................ Kohler Courage SV730
Engine Type ................ V-twin cylinder OHV vertical shaft air-cooled gasoline engine
Number of Cylinders ................ 2
Displacement, cu.in (L) ................ 44.2 (0.725)
Cylinder Bore, in (mm) ................ 3.27 (83.0)
Piston Stroke, in (mm) ................ 2.64 (67.0)
Rated Engine Power, hp (kW) ................ 25.0 (18.6)
Rated Engine Speed, rpm ................ 3600
Maximum Torque, Nm (ft-lbs) ................ 59.6 (44.1)
Torque Speed, rpm ................ 2800
Idle Speed, rpm ................ 1600
Compression Ratio ................ 9.0:1
Fuel System Type ................ Carburetor
Carburetor Model ................ Nikki or Keihin
Carburetor Type ................ One-Barrel, fixed main jet
Fuel Pump ................ Pulse type
Lubrication System ................ Full pressure
Oil Filter ................ Full-flow type
Air Cleaner Type ................ Dual element
Ignition System Type ................ Electronic
Spark Plug Type ................ Champion RC12YC
Spark Plug Gap, in (mm) ................ 0.03 (0.76)
Module Air Gap, in (mm) ................ 0.011-0.013 (0.28-0.33)
Intake Valve Clearance, in (mm) ................ 0.005 (0.127)
Exhaust Valve Clearance, in (mm) ................ 0.005 (0.127)
Fuel Tank Capacity, gal (L) ................ 7.0 (26.5)
Oil Capacity, qts (L) ................ 2.0 (1.9)

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 Z520A Transmission

Transmission Model ................ Parker Hannifin
Transmission Type ................ Hydrostatic
Number of Forward Gears ................ Infinite
Number of Reverse Gears ................ Infinite
Maximum Forward Speed, mph (kph) ................ 10.0 (16.0)
Maximum Reverse Speed, mph (kph) ................ 5.0 (8.0)

Wheels and Tires

Drive Wheels ................ 2WD 4x2
Steering Configuration ................ Front steer
Steering System ................ Power
Front Tire Size ................ 13x5.00-6
Rear Tire Size ................ 22x9.50-12

Dimensions and Weight

Wheelbase, in (mm) ................ 53 (1340)
Overall Length, in (mm) ................ 82.2 (2080)
Overall Heigth (ROPS), in (mm) ................ 72.7 (1840)
Weight (54" Deck), lb (kg) ................ 1099 (498)
Weight (60" Deck), lb (kg) ................ 1125 (509)

Mower Deck

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

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