Case 721B Wheel Loader

Loader Performance

Tipping Load, Straight (SAE) 23612 lb (10710 kg)
Tipping Load, at 40° turn (SAE) 19866 lb (9011 kg)
Operating Load Capacity (SAE) 9933 lb (4506 kg)
Breakout Force 32171 lbf (143.1 kN)
Standard Bucket Width 103.1 in (2619 mm)
Bucket Capacity – Heaped 2.50 yd3 (1.9 m3)
Bucket Capacity – Struck 2.15 yd3 (1.6 m3)

Dimensions

Length With Bucket On Ground 22.81 ft in (6950 mm)
Wheelbase 9.52 ft in (2900 mm)
Width Over Tires 7.94 ft in (2420 mm)
Height To Top Of Cab 10.67 ft in (3250 mm)
Hinge Pin – Max Height 12.11 ft in (3690 mm)
Ground Clearance 16.5 in (420 mm)

Engine Details

Number of Cylinders 6
Engine Make Cummins
Engine Model Case 6T-830
Displacement 505 cu in (8.3 L)
Bore 4.48 in (114 mm)
Stroke 5.32 in (135 mm)
Net Power 140 hp (103 kw)
Gross Power 157 hp (117 kw)
Power Measured @ 2100 rpm
Peak Torque 479 lb ft (649 Nm)
Torque Measured @ 1500 rpm
Fuel System Direct injection. Mechanical injection pump
Aspiration Turbocharged

Operational Specs

Operating Weight (Minimum) 28669 lb (13004 kg)
Operating Weight (Maximum) 30048 lb (13630 kg)
Operating Voltage 24 V
Alternator 65 amps
Battery 2x 12 V
Counterweight (Option 1) 2400 lb (1089 kg)
Counterweight (Option 2) 3400 lb (1542 kg)
Tire Size (Standard) 20.5 x 25 12PR L2
Tire Size (Optional) 17.5 x 25 12PR L2

Transmission

Type ZF 4WG180 4/3 powershift transmission
Number of Forward Gears 4
Number of Reverse Gears 3
Max Forward Speed 22.2 mph (35.7 km/h)
Max Reverse Speed 14.2 mph (22.9 km/h)
Service Brakes Wet disc brakes

Hydraulic System

Type Open-center, series parallel circuit, with positive low pressure regeneration for bucket dump
Pump Type Hydraulic tandem pump
Steering Pump Flow 30.9 gal/min (117 L/min)
Relief Pressure (Steering) 2500 psi (17237 kPa)
Loader Pump Flow 56.4 gal/min (213.5 L/min)
Relief Pressure (Loader) 2525 psi (17409 kPa)
Raise Time 5.9 sec
Dump Time 1.8 sec
Lower Time 4.6 sec

Service Refill Capacities

Fuel Tank Capacity 53.9 gal (204 L)
Engine Oil Capacity (w/ filter) 5.5 gal (20.8 L)
Cooling System Capacity 8.5 gal (32 L)
Hydraulic System Capacity (w/ tank) 40.5 gal (153 L)
Hydraulic Tank Capacity 23.8 gal (90 L)
Transmission Oil Capacity (Dry fill) 6 gal (22.7 L)
Transmission Oil Capacity (Service w/ filter) 3.2 gal (12.3 L)
Front Differential Fluid Capacity 4 gal (15 L)
Rear Differential Fluid Capacity 2.5 gal (9.5 L)
Front Hub Capacity (each) 1.45 gal (5.5 L)
Rear Hub Capacity (each) 1.45 gal (5.5 L)
Total Front Axle Fluid Capacity 6.9 gal (26 L)
Total Rear Axle Fluid Capacity 5.4 gal (20.5 L)
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