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  Wheel Loaders

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  • Cat 926M
  • Case 221D
  • John Deere 304H
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  • Case 521E
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John Deere 304K Specifications

The John Deere 304K wheel loader driveline system components: Yanmar 4TNV98 4-cylinder vertical in-line direct injection liquid-cooled diesel engine with a rated power of 64 hp (48 kW), and hydrostatic transmission. The hydraulic system has a pump with a rated capacity of 20 gal/min (75.8 l/min). The system relief pressure is 3335 psi (230 bar). The John Deere 304K is equipped with a power steering system, hydraulic wet disc brakes, and 405/70R20 tires. The wheel loader has a maximum lift height of 132.7" (3370 mm) and breakout force of 10560 lbs (4790 kg). The rated operating capacity is 3970 lbs (1800 kg), and tipping load is 7940 lbs (3600 kg).

Engine Model .................... Yanmar 4TNV98
Engine Type .................... 4-cylinder vertical in-line liquid-cooled diesel
Number of Cylinders .................... Four
Displacement, cu.in (L) .................... 202.5 (3.32)
Cylinder Bore, in (mm) .................... 3.86 (98.0)
Piston Stroke, in (mm) .................... 4.33 (110.0)
Aspiration Type .................... Naturally aspirated
Rated Engine Power, hp (kW) .................... 64.0 (48.0)
Rated Engine Speed, rpm .................... 2500
High Idle Speed, rpm .................... 2750
Maximum Torque, Nm (lb-ft) .................... 239 (176)
Torque Speed, rpm .................... 1600
Compression Ratio .................... 18.5:1
Firing Order .................... 1-3-4-2
Fuel System .................... Direct injection
Fuel Filter Type .................... Replaceable element
Lubrication System .................... Forced with trochoid pump
Cooling System .................... Liquid-cooled with radiator
Air Cleaner Type .................... Dry dual element
Emission Level .................... Interim Tier 4
Fuel Tank Capacity, gal (L) .................... 13.2 (50.0)
Engine Oil Capacity, qts (L) .................... 10.5 (10.0)
Cooling System Capacity, qts (L) .................... 12.6 (12.0)
Electrical System Rating, Volts .................... 12
Charging System .................... Alternator
Alternator Rating, Amps .................... 80

Transmission Type .................... Hydrostatic, 2-range
Number of Forward Gears .................... 2
Number of Reverse Gears .................... 2
Forward Speed (Low Range), mph (kph) .................... 3.7 (6.0)
Forward Speed (High Range), mph (kph) .................... 12.4 (20.0)
Reverse Speed (Low Range), mph (kph) .................... 3.7 (6.0)
Reverse Speed (High Range), mph (kph) .................... 12.4 (20.0)

Drive System Type .................... Four-wheel drive (4WD)
Steering Configuration .................... Articulated frame
Steering System .................... Hydrostatic power
Service Brakes Type .................... Hydraulic wet disc
Front Tire Size (Std) .................... 405/70R20
Rear Tire Size (Std) .................... 405/70R20
Front Tire Size (Opt) .................... 400/70R20
Rear Tire Size (Opt) .................... 400/70R20
Front Tire Size (Opt) .................... 405/70R18
Rear Tire Size (Opt) .................... 405/70R18

Hydraulic System Type .................... Open center
Hydraulic Pump Type .................... Gear
Pump Flow, gpm (Lpm) .................... 20.0 (75.8)
System Pressure, psi (Bar) .................... 3335 (230)
Hydraulic System Capacity, gal (L) .................... 23.8 (90.0)
Number of Valves .................... 3

Rated Operating Capacity (Straight), lbs (kg) .................... 4410 (2000)
Rated Operating Capacity (Full Turn), lbs (kg) .................... 3970 (1800)
Tipping Load (Straight), lbs (kg) .................... 8820 (4000)
Tipping Load (Full Turn), lbs (kg) .................... 7940 (3600)
Lift Capacity, lbs (kg) .................... 10030 (4550)
Breakout Force, lbs (kg) .................... 10560 (4790)

Maximum Lift Height To Hinge Pin, in (mm) .................... 132.7 (3370)
Height To Top Of Cab, in (mm) .................... 97.3 (2470)
Length With Bucket On Ground, in (mm) .................... 221.2 (5620)
Width (Tread Center), in (mm) .................... 54.2 (1375)
Width (Over Tires), in (mm) .................... 70.5 (1790)
Wheel Base, in (mm) .................... 84.6 (2150)
Ground Clearance, in (mm) .................... 13.1 (330)
Articulation Angle, deg .................... 40
Bucket Width, in (mm) .................... 87 (2210)
Bucket Capacity, cu.ft (m3) .................... 38.8 (1.10)
Digging Depth, in (mm) .................... 2.8 (70)
Rollback Angle At Full Height, deg .................... 65
Rollback Angle At Ground, deg .................... 37
Dump Angle At Full Height, deg .................... 40
Clearance With Bucket Dumped, in (mm) .................... 101.2 (2570)
Reach At Full Height, in (mm) .................... 38.4 (975)
Turning Radius (w/Bucket), in (mm) .................... 178.3 (4530)
Operating Weight, lbs (kg) .................... 13020 (5905)

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