John Deere lawn tractors
John Deere 312
The John Deere 312 is a garden tractor produced from 1977 to 1978 as part of the 300 Series. It features a 12 hp Kohler K301AQS 476cc 1-cylinder air-cooled gasoline engine, a Sundstrand 15 shaft-driven hydrostatic transmission with infinite forward and reverse speeds, and two-wheel drive. The tractor has a wheelbase of 46 inches, weighs 760 lbs, and uses 16x6.50-8 front tires and 23x8.50-12 rear tires. It offers an open operator station and optional sleeve hitch. Attachments include mid-mount mower decks, snowblower, blade, front-end loader, and compatibility with the John Deere model 33 tiller with rear PTO kit installation. Electrical system is 12 volts with negative ground.
Power12 hp
Founded38/46" deck
Model312
Technical Specifications
Detailed specifications and technical data for John Deere 312
Power
| Power (gross) | 12 hp (8.9 kW) |
|---|
Tires
| Rear tire | 23x8.50-12 |
|---|---|
| Front tire | 16x6.50-8 |
Engine
| Type | gasoline |
|---|---|
| Model | Kohler K301AQS |
| Cooling | air-cooled horizontal-shaft |
| Cylinders | 1-cylinder |
| Air cleaner | dry |
| Bore/Stroke | 3.375x3.25 inches (86 x 83 mm) |
| Displacement | 476 cc (29.1 ci) |
| Power (gross) | 12 hp (8.9 kW) |
| Starter volts | 12 |
Dimensions
| Width | 42.5 inches (107 cm) |
|---|---|
| Height | 44 inches (111 cm) |
| Length | 69 inches (175 cm) |
| Weight | 760 lbs (344 kg) |
| Wheelbase | 46 inches (116 cm) |
Electrical
| Ground | negative |
|---|---|
| Battery volts | 12 |
Production
| Series | 300 Series |
|---|---|
| Category | Garden tractor |
| Years produced | 1977 - 1978 |
| Manufactured in | Horicon, Wisconsin, USA |
Attachments
| 54" Blade | John Deere 54, front-mount, 54 inches width (137 cm), 18 inches height (45 cm), 15 inches lift (38 cm), Angling 30°, 3.5 inches cut (8 cm), 140 lbs (63 kg), hydraulic-lift, manual-angle |
|---|---|
| 320 Loader | built by Brantly, 500 lbs lift (full at pin) (226 kg), 750 lbs breakout (340 kg), 55° dump, 12 inches reach (dumped) (30 cm), 9 inches reach (ground) (22 cm), 71 inches height (at pin) (180 cm), 51 inches clearance (dumped) (129 cm), 62 inches clearance (level) (157 cm), boom cyl: 2 inches (5 cm), boom rod: 1.125 inches (2 cm), bucket cyl: 2 inches (5 cm), bucket rod: 1.125 inches (2 cm), weight: 316 lbs (143 kg), Bucket width: 40 inches (101 cm), 48 inches (121 cm), 60 inches (152 cm) |
| Additional | The 312 was compatible with the John Deere model 33 tiller, with 26-, 34-, or 42-inch width. The 33 tiller requires the installation of the rear PTO kit (BM15851) on the tractor. |
| 46" Snow blower | John Deere 49, 46 inches width (116 cm), one-stage, front-mount, hydraulic-lift, 197 lbs (89 kg) |
| 38" mid-mount mower deck | John Deere 41, 38 inches (96 cm), Total width: 49.25 inches (125 cm), 3-blade, hydraulic lift, right-discharge, Cut height: 1.5 to 3.5 inch (3 to 8 cm), 111 lbs (50 kg) |
| 46" mid-mount mower deck | John Deere 48, 46 inches (116 cm), Total width: 57 inches (144 cm), 3-blade, hydraulic lift, right-discharge, Cut height: 1.5 to 3.5 inch (3 to 8 cm), 144 lbs (65 kg) |
Transmission
| Type | shaft-driven hydrostatic |
|---|---|
| Gears | infinite forward and reverse |
| Model | Sundstrand 15 |
| Controls | Throttle, Forward/Reverse, Brake, Parking brake |
| Oil type | JD All-Weather Hydrostatic Fluid |
Tractor hitch
| Type | sleeve hitch (Optional) |
|---|