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John Deere 312GR Specifications
The
John Deere 312GR skid steer loader is powered by 128.1 cu.in (2.1L) Yanmar
4TNV86CT 4-cylinder turbocharged diesel engine with a rated power of 48 hp (35.8
kW) at 2600 rpm. The John Deere 312GR is equipped with a radial-lift loader
boom, 1-speed hydrostatic transmission, 80HD drive chains, and 10.00x16.5
standard tires. The hydraulic system has a pump with fluid flow rate of 17 gpm
(64.4 lpm). The hydraulic pressure is 3450 psi (238 bar). The skid steer loader
has a rated operating capacity of 1550 lbs (704 kg) and tipping load of 3100 lbs
(1410 kg). The lift height is 115 inches (2920 mm) to hinge pin, and dump height
is 88.5 inches (2250 mm).
| Engine Specs |
Engine Model ...................... Yanmar 4TNV86CT
Engine Type ...................... Vertical in-line 4-cycle 4-cylinder turbocharged diesel
Number of Cylinders ...................... Four
Displacement, cu.in (L) ...................... 128.1 (2.09)
Cylinder Bore, in (mm) ...................... 3.39 (86.0)
Piston Stroke, in (mm) ...................... 3.54 (90.0)
Aspiration Type ...................... Turbocharged
Rated Engine Power, hp (kW) ...................... 48.0 (35.8)
Maximum Engine Power, hp (kW) ...................... 51.0 (37.8)
Rated Engine Speed, rpm ...................... 2600
Maximum Torque, Nm (lb-ft) ...................... 168 (124)
Torque Speed, rpm ...................... 1690
Firing Order ...................... 1-3-4-2
Fuel System ...................... Direct injection
Fuel Injection ...................... High pressure common rail
Fuel System Control ...................... Electronic
Lubrication System ...................... Forced lubrication with trochoid pump
Air Cleaner Type ...................... Dry dual element
Emission Level ...................... Final Tier 4
Fuel Tank Capacity, gal (L) ...................... 19.0 (71.0)
Oil Capacity, qts (L) ...................... 7.9 (7.5)
Coolant Capacity, qts (L) ...................... 12.8 (12.0)
Electrical System Rating, Volts ...................... 12
Charging System ...................... Alternator
Alternator Rating, Amps ...................... 70
| Drive Train |
Drive System Type ...................... 4-wheel drive, hydrostatic transmission
Number of Gears ...................... Single
Chain Drive Type ...................... 80HD roller chains
Brakes Type ...................... Integral automatic wet disc
Front Tire Size ...................... 10x16.5
Rear Tire Size ...................... 10x16.5
Chain Case Capacity, qts (L) ...................... 14.8 (14.0)
Forward Speed, mph (kph) ...................... 6.7 (10.8)
Reverse Speed, mph (kph) ...................... 6.7 (10.8)
| Hydraulic System |
Hydraulic System Type ...................... Open center
Pump Flow, gpm (Lpm) ...................... 17.0 (64.4)
System Pressure, Bar (psi) ...................... 238 (3450)
Hydraulic Tank Capacity, gal (L) ...................... 6.1 (23.0)
Number of Valves ...................... 3
| Loader Performance |
Rated Operating Capacity, lbs (kg) ...................... 1550 (704)
Tipping Load, lbs (kg) ...................... 3100 (1410)
Boom Breakout Force, lbs (kg) ...................... 4500 (2045)
Bucket Breakout Force, lbs (kg) ...................... 5000 (2270)
Loader Boom Type ...................... Radial-lift
| Dimensions and Weight |
Wheelbase, in (mm) ...................... 41.5 (1050)
Height (Operator Cab), in (mm) ...................... 77.2 (1960)
Length (w/o Bucket), in (mm) ...................... 103.5 (2630)
Length (Bucket On Ground), in (mm) ...................... 127.6 (3240)
Width (w/o Bucket), in (mm) ...................... 63 (1600)
Height to Hinge Pin (Fully Raised), in (mm) ...................... 115 (2920)
Dump Angle At Max Height, deg ...................... 45
Dump Height (Fully Raised), in (mm) ...................... 88.5 (2250)
Dump Reach At Max Height, in (mm) ...................... 15.8 (400)
Rollback Angle At Ground Level, deg ...................... 30
Departure Angle, deg ...................... 22.3
Bucket Width, in (mm) ...................... 66 (1675)
Ground Clearance, in (mm) ...................... 7.1 (180)
Turning Radius (w/Bucket), in (mm) ...................... 79.4 (2010)
Shipping Weight, lbs (kg) ...................... 5400 (2450)
Operating Weight, lbs (kg) ...................... 5900 (2680)
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