The Kubota ZD28 is a zero-turn mower model from the ZD series, manufactured by Kubota from 2002 to 2006. It was available in two-wheel drive (2WD) version.
The Kubota ZD28 is equipped with a 1.1 L (68.5 cu·in) three-cylinder diesel engine with 78.0 mm (3.07 in) of the cylinder bore and 78.4 mm (3.09 in) of the piston stroke, and a hydrostatic transmission with infinite forward and reverse gears.
The Kubota ZD28 zero-turn mower features:
- The Kubota D1105 diesel engine which produces 28.4 PS (20.9 kW; 28.0 HP) of horsepower
- 2-Hand levers steering
- Internal expanding shoe brakes
- Open operator station with two-post ROPS
- Independent front PTO with 2,540 rpm
General specifications
General Specifications |
Model |
Kubota ZD28 |
Tractor type |
Zero-turn mower |
Production years |
2002-2006 |
Factory |
– |
Dimensions and weight |
Length |
2,260 mm (89 in)
|
Width |
1,450 mm (57.1 in)
|
Height |
1,190 mm (46.9 in)
|
Wheel base |
1,360 mm (53.5 in)
|
Weight |
650 kg (1,433 lbs)
|
Fuel capacity |
Fuel tank capacity |
30.0 liters (7.9 US gal.; 6.6 Imp. gal) |
Engine
Engine Specifications |
Engine model |
Kubota D1105 |
Engine type |
4-stroke, SOHC, three-cylinders |
Displacement |
1.1 L, 1,123 cm3, (68.5 cu·in) |
Bore and stroke |
78.0 mm X 78.4 mm (3.07 in X 3.09 in) |
Max. horsepower |
28.4 PS (20.9 kW; 28.0 HP) |
Cooling system |
Liquid-cooled |
Coolant capacity: |
3.8 L (4 US. qt, 3.3 Imp. qt.) |
Fuel used |
Diesel fuel |
Starting system |
Electric starting with 12V starter |
Starting support device |
Glow plug in combustion chamber |
Governor |
All speed mechanical governor |
Charging system |
Alternator 12V |
PTO shaft rotation |
Counterclockwise |
Valve clearance |
Intake valve clearance: |
0.145-0.185 mm (0.0057-0.0073 in) |
Exhaust valve clearance: |
0.145-0.185 mm (0.0057-0.0073 in) |
Oil system |
Lubrication system: |
Forced lubrication by trochoid pump |
Oil type: |
CF or higher |
Recommended oil: |
SAE 10W-30, 10W-40 |
Oil capacity: |
3.4 L (3.6 US. qt, 3 Imp. qt.) |
Oil pressure: |
At idle speed: 49 MPa (0.5 kgf/cm2, 7 psi)
At rated speed: 196 to 441 MPa (2.0-4.5 kgf/cm2, 28 to 64 psi)
|
Oil filter: |
Full flow paper filter (Cartridge type) |
Oil pressure indicating: |
Electrical type switch |
Oil and oil filter change interval: |
Every 200 hours |
Fuel system |
Fuel injection pump: |
Bosch MD type mini fuel injection pump |
Injection nozzle: |
Mini Nozzle (DNOPD) |
Firing order: |
1-2-3 |
Injection pressure: |
13.73 MPa (140 kgf/cm2, 1,991 psi) |
Transmission and chassis
Chassis, steering and brakes |
Chassis |
4×2 2WD |
Steering type |
2-Hand levers |
Brakes |
Internal expanding shoe |
Transmission |
Transmission manufacturer or model |
HST |
Transmission type |
Hydrostatic |
Gears |
Infinite forward and reverse |
Speed |
Forward: 15.0 kmh (9.3 mph)
Reverse: 8.3 kmh (5.2 mph)
|
Transmission oil capacity |
4.0 L (1.1 US. gal, 0.9 Imp. gal.) |
Tires
Tires |
Front tires |
Lawn/turf: 15×6.0-6 |
Rear tires |
Lawn/turf: 23×10.5-12 |
PTO (Power take-off shaft)
PTO |
Middle PTO type |
Independent |
Middle PTO speed |
2,540 rpm |
Electrical system
Electrical system |
Ground |
Negative |
Charging system |
– |
Charging amps |
– |
Battery |
12V, CCA: 450A |
Attachments
Kubota RCK60-28Z: 60″ mid-mount mower with 3-blade |
Cutting width |
1,520 mm (60.0 in) |
Overall width |
1,840 mm (72.8 in) |
Cut height |
20-120 mm (1 to 5 in) |
Kubota RCK72-28Z: 72″ mid-mount mower with 3-blade |
Cutting width |
1,820 mm (72.0 in) |
Overall width |
1,900 mm (75.0 in) |
Cut height |
20-120 mm (1 to 5 in) |
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