1967 - 1972
| 1967 - 1972 |
| 400 Series |
| Garden tractor |
Series:
| Series: | 424 ← | 430 | → 432 |
| | 812 ↓ | |
1967 - 1972
| 1967 - 1972 |
| 400 Series |
| Garden tractor |
Series:
Production
| Production |
| Manufacturer | Gravely |
| Type | Garden tractor |
Gravely 424 Engines
| Gravely 424 Engines |
| 10HP Kohler 391cc 1-cyl gasoline |
| 10HP Onan 491cc 1-cyl |
| Fuel tank | 5 gal
18.9 L |
| Engine details ... |
Gravely 424 Transmission
| Gravely 424 Transmission |
| 4-speed gear |
| Transmission details ... |
Mechanical
| Mechanical |
| Chassis | 4x2 2WD |
| Steering | manual |
| Brakes | mechanical band |
| Cab | Open operator station. |
Tractor hitch
| Tractor hitch |
| Type | sleeve hitch OptOptional |
Dimensions & Tires
| Dimensions & Tires |
| Wheelbase | 46 inches
116 cm |
| Weight | 900 lbs
408 kg |
| Front tire | 16-6.50x6 |
| Rear tire | 23-8.50x12 |
| Full dimensions and tires ... |
Electrical
| Electrical |
| Ground | negative |
| Battery volts | 12 |
Production
| Production |
| Manufacturer | Gravely |
| Type | Garden tractor |
Gravely 430 Engines
| Gravely 430 Engines |
| 12HP Kohler 476cc 1-cyl gasoline |
| 12HP Onan 491cc 1-cyl |
| Fuel tank | 5 gal
18.9 L |
| Engine details ... |
1967 - 1972
| 1967 - 1972 |
| 400 Series |
| Garden tractor |
Series:
| Series: | 424 ← | 430 | → 432 |
| | 812 ↓ | |
Engines overview
| Engines overview |
| 12HP Kohler 476cc 1-cyl gasoline |
| 12HP Onan 491cc 1-cyl |
Engine Detail
| Engine Detail |
| Kohler K301 |
| gasoline |
| 1-cylinder |
| air-cooled horizontal-shaft |
| Displacement | 476 cc
29.07 ci |
| Bore/Stroke | 3.25x3.37 inches
83 x 86 mm |
| Power (gross) | 12 hp
8.9 kW |
| Air cleaner | single dry element |
| Rated RPM | 3600 |
| Starter volts | 12 |
| Sparkplug | Champion H-10 |
| Sparkplug gap | 0.025 inches
0.635 mm |
| Intake valve clearance | 0.009 inches*Cold
0.229 mm |
| Exhaust valve clearance | 0.018 inches*Cold
0.457 mm |
Engine Oil
| Engine Oil |
| |
| Oil capacity | 2.5 qts
2.4 L |
Engine Detail
| Engine Detail |
| Onan NB |
| 1-cylinder |
| air-cooled |
| Displacement | 491 cc
30 ci |
| Bore/Stroke | 3.5625x3.00 inches
90 x 76 mm |
| Power | 12 hp
8.9 kW |
| Rated RPM | 3600 |
| Starter volts | 12 |
Gravely 430 Transmission
| Gravely 430 Transmission |
| 4-speed gear |
| Transmission details ... |
1967 - 1972
| 1967 - 1972 |
| 400 Series |
| Garden tractor |
Series:
| Series: | 424 ← | 430 | → 432 |
| | 812 ↓ | |
Transmission
| Transmission |
| Transmission | Swiftamatic 8 |
| Type | shaft-driven gear |
| Gears | 4 forward and reverse |
| Clutch | friction cone |
| Oil capacity | 5 qts
4.7 L |
| Oil type | |
| Two-speed shift-on-the-move affects transmission and PTO speed. Additional two-speed range for transmission can be shifted only when stopped. Right-hand directional clutch lever controls forward and reverse. |
Mechanical
| Mechanical |
| Chassis | 4x2 2WD |
| Steering | manual |
| Brakes | mechanical band |
| Cab | Open operator station. |
Tractor hitch
| Tractor hitch |
| Type | sleeve hitch OptOptional |
Dimensions & Tires
| Dimensions & Tires |
| Wheelbase | 46 inches
116 cm |
| Weight | 900 lbs
408 kg |
| Front tire | 16-6.50x6 |
| Rear tire | 23-8.50x12 |
| Full dimensions and tires ... |
1967 - 1972
| 1967 - 1972 |
| 400 Series |
| Garden tractor |
Series:
| Series: | 424 ← | 430 | → 432 |
| | 812 ↓ | |
Gravely 430 Tires
| Gravely 430 Tires |
| Lawn/turf front | 16-6.50x6 |
| Lawn/turf rear | 23-8.50x12 |
Electrical
| Electrical |
| Ground | negative |
| Battery volts | 12 |
