Production | |
| Manufacturer: | Toro |
| Type: | Garden tractor |
| Factory: | South Bend, Indiana, USA |
Variants | |
| standard | |
| commercial-duty |
Mechanical | |
| Chassis: | 4x2 2WD |
| Steering: | manual |
| Brakes: | mechanical band |
| Cab: | Open operator station. |
| Transmission: | hydrostatic |
Capacity | |
| Fuel: | 3 gal 11.4 L |
Power Take-off (PTO) | |
| Mid PTO: | independent |
| Clutch: | mechanical |
520 Serial Numbers | |
| Location: | Serial number plate on the rear fender, below the seat. Model codes in parentheses. |
| 1988: (31-20OE01) 520-H 1989: (31-20OE02) 520-H 1990: (41-20OE01) 1991: (41-20OE02) 1992: (41-20OE03) 1993: 39000001 (73501) 1994: 49000001 (73501) 1995: 59000001 (73501) 1996: 69000001 (73501) 1996: 69000001 (73502) 1997: 7900001 (73502) | |
Electrical | |
| Ground: | negative |
| Charging system: | alternator |
| Charging amps: | 20 |
Engine Detail | |
| Onan P220G | |
| gasoline | |
| 2-cylinder | |
| air-cooled | |
| Displacement: | 781 cc 47.7 ci |
| Bore/Stroke: | 3.2580x2.875 inches 83 x 73 mm |
| Power: | 20 hp 14.9 kW |
| Compression: | 7.0:1 |
| Rated RPM: | 3600 |
| Idle RPM: | 1400-3600 |
| Starter volts: | 12 |
| Oil capacity: | 1.7 qts 1.6 L |
| Sparkplug: | Champion RS14YC |
| Sparkplug gap: | 0.025 inches 0.635 mm |
Transmission | |
| Transmission: | Eaton 1100-032 |
| Type: | belt-driven hydrostatic |
| Gears: | infinite forward and reverse |
| Oil capacity: | 5 qts 4.7 L |
| Oil type: | SAE 10W-30 |
Dimensions | |
| Length: | 65 inches 165 cm |
| Width: | 38 inches 96 cm |
| Height: | 45.5 inches 115 cm |
| Weight: | 646 lbs 293 kg |