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  Wheel Loaders

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Case 621D XR Specifications

The Case 621D XR wheel loader driveline system components: 359 cu.in (5.9L) Case 6BT-590 4-stroke 4-cylinder direct injection turbocharged diesel engine with a rated power of 134 hp (99.3 kW), and 4-speed powershift transmission. The closed center hydraulic system has a pump with a rated capacity of 45.2 gal/min (171 l/min). The Case 621D XR is equipped with a power steering system, hydraulic wet disc brakes, and 20.5x25 tires. The wheel loader has a maximum lift height to hinge pin of 167.4" (4250 mm) and boom breakout force of 24080 lbs (10925 kg). The rated operating capacity is 7440 lbs (3375 kg), and tipping load is 14880 lbs (6750 kg).

Engine Model .................... Case 6BT-590
Engine Type .................... 4-Stroke direct injection liquid-cooled diesel
Number of Cylinders .................... 6
Displacement, cu in (L) .................... 359 (5.90)
Engine Bore, in (mm) .................... 4.02 (102.0)
Engine Stroke, in (mm) .................... 4.72 (120.0)
Aspiration Type .................... Turbocharged
Rated Engine Power, hp (kW) .................... 134.0 (99.3)
Rated Engine Speed, rpm .................... 2200
Low Idle Speed, rpm .................... 920-980
High Idle Speed, rpm .................... 2305-2385
Maximum Torque, Nm (ft-lb) .................... 598 (441)
Torque Speed, rpm.................... 1400
Compression Ratio .................... 17.5:1
Firing Order .................... 1-5-3-6-2-4
Fuel System .................... Injection pump
Fuel Filter Type .................... Full flow spin-on cartridge
Governor Type .................... Mechanical
Lubricating System .................... Positive pressure
Cooling System .................... Liquid-cooled
Air Cleaner Type .................... Dry element
Fuel Tank Capacity, gal (L) .................... 50.0 (189.0)
Oil Capacity, qts (L) .................... 16.0 (15.1)
Coolant Capacity, qts (L) .................... 20.2 (19.2)
Electrical System Rating, Volts .................... 12
Charging System .................... Alternator
Alternator Rating, Amps .................... 45

Transmission Type .................... Powershift
Gearbox Type .................... 4F/3R
Number of Forward Gears .................... 4
Number of Reverse Gears .................... 3
Torque Converter Type .................... Single stage
Torque Converter Ratio .................... 2.66:1
Oil Capacity, gal (L) .................... 2.0 (7.6)
Maximum Forward Speed, mph (kph) .................... 23.6 (38.1)
Maximum Reverse Speed, mph (kph) .................... 15.4 (24.8)

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) .................... 20.5x25
Rear Tire Size (Std) .................... 20.5x25
Front Tire Size (Opt) .................... 17.5x25-12
Rear Tire Size (Opt) .................... 17.5x25-12

Hydraulic System Type .................... Closed center
Hydraulic Pump Type .................... Variable displacement piston
Pump Capacity, gpm (Lpm) .................... 45.2 (171.0)
System Pressure, psi (Bar) .................... 3600 (248)
Hydraulic Reservoir Capacity, gal (L) .................... 15.0 (56.8)
Hydraulic System Capacity, gal (L) .................... 30.0 (113.6)

Rated Operating Capacity (Straight), lbs (kg) .................... 8910 (4042)
Rated Operating Capacity (Full Turn), lbs (kg) .................... 7440 (3375)
Tipping Load (Straight), lbs (kg) .................... 17825 (8085)
Tipping Load (Full Turn), lbs (kg) .................... 14880 (6750)
Lift Capacity, lbs (kg) .................... 13955 (6330)
Breakout Force, lbs (kg) .................... 24080 (10925)

Maximum Operating Height .................... 214.7 (5455)
Maximum Lift Height To Hinge Pin, in (mm) .................... 167.4 (4250)
Height To Top Of Cab, in (mm) .................... 128.3 (3260)
Length With Bucket On Ground, in (mm) .................... 293.3 (7450)
Width (Tread Center), in (mm) .................... 72.8 (1850)
Width (Over Tires), in (mm) .................... 95.4 (2425)
Wheel Base, in (mm) .................... 114.2 (2900)
Ground Clearance, in (mm) .................... 18.7 (475)
Departure Angle, deg .................... 28
Articulation Angle, deg .................... 40
Bucket Width, in (mm) .................... 102 (2590)
Bucket Capacity, cu.ft (m3) .................... 80.8 (2.29)
Digging Depth, in (mm) .................... 3.5 (89)
Rollback Angle At Ground, deg .................... 41
Rollback Angle At Full Height, deg .................... 55
Dump Angle At Full Height, deg .................... 44
Clearance With Bucket Dumped, in (mm) .................... 127.3 (3230)
Reach At Full Height, in (mm) .................... 40 (1015)
Turning Radius (w/Bucket), in (mm) .................... 204.5 (5195)
Operating Weight, lbs (kg) .................... 26660 (12095)

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Wheel Loaders, Skid Steers, and Compact Track Loaders