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Home / Backhoe Loaders / Caterpillar Backhoe Loaders / Cat 424D

Cat 424D Backhoe Loader

The Caterpillar 424D backhoe loader was manufactured from 2001 to 2006. The components of Cat 424D driveline system: a 258 cu.in (4.2L) Caterpillar 3054B 4-stroke 4-cylinder direct Injection liquid cooled diesel engine, and 4x4 Power Shuttle full synchromesh transmission with single-stage torque converter.

The engine has a cylinder bore of 4.06" (103 mm), piston stroke of 5.0" (127 mm), and rated power of 74 hp (55 kW). The max travel speed (forward/reverse): 19.7 mph (31.8 km/h). The closed center load sensing hydraulic system used an axial piston pump with a flow of 37 gpm (139 lpm). The main relief pressure is 207 bar (3000 psi). The Cat 424D backhoe loader was equipped with 12.5/80-18 (2WD) or 340/80R18 (4WD) front tyres and 16.9x28 (2WD) or 16.9R28 (4WD) rear tyres. The wheelbase is 83" (2100 mm).

The loader has a lift capacity (at pin) of 5320 lbs (2416 kg) to max height of 10 ft 10 in (3321 mm), and boom breakout force of 8750 lbs (3977 kg). The clearance with bucket dumped is 8 ft 8 in (2633 mm) at maximum dump angle of 43 degrees. The 89" (2260 mm) standard material bucket has a nominal heaped capacity of 29.1 cu.ft (0.83 m3).

The backhoe with extendable stick has a max digging depth of 19 ft 4 in (5894 mm). The dipperstick digging force is 5670 lbs (2577 kg), and bucket digging force is 11610 lbs (5277 kg). The overall reach from swing pivot at ground level is 21 ft 10 in (6664 mm). The backhoe can be fitted with 12" (305 mm), 18" (455 mm), 24" (605 mm), 30" (760 mm), and 36" (910 mm) buckets.

Engine
Engine Model Caterpillar 3054B
Engine Type Four-stroke, 4-cylinder, liquid cooled diesel
Number of Cylinders 4, In-Line
Displacement, cu in (L) 258 (4.20)
Engine Bore, in (mm) 4.06 (103.0)
Engine Stroke, in (mm) 5.00 (127.0)
Aspiration Natural
Maximum Engine Power, hp (kW) 77.0 (57.0)
Rated Engine Power, hp (kW) 74.0 (55.0)
Rated Engine Speed, rpm 2200
Compression 18.5:1
Fuel System Direct Injection
Rotation Counterclockwise
Air Cleaner Dry-type radial seal
Fuel Tank Capacity, gal (L) 34.0 (128.0)
Oil Capacity, qts (L) 7.7 (7.3)
Coolant Capacity, qts (L) 16.0 (15.0)
Electrical System Rating, Volts 12
Battery Rating 700 CCA

Transmission
Transmission Type Power Shuttle
Gearbox Type 4F/4R, Full synchromesh
Number of Forward Gears 4
Number of Reverse Gears 4
Torque Converter Single-stage
Torque Converter Ratio 2.63:1
Oil Capacity, qts (L) 19.0 (18.0)
Maximum Forward Speed, mph (kph) 19.7 (31.8)
Maximum Reverse Speed, mph (kph) 19.7 (31.8)

Wheels and Tires
Drive Wheels 2WD/4WD
Steering Configuration Front Steer
Steering System Hydrostatic
Steering Cylinder One, Double-acting
Steering Cylinder Bore (2WD), in (mm) 2.76 (70)
Steering Cylinder Stroke (2WD), in (mm) 8.81 (224)
Steering Cylinder Rod Diameter (2WD), in (mm) 1.75 (44)
Steering Cylinder Bore (4WD), in (mm) 2.85 (72)
Steering Cylinder Stroke (4WD), in (mm) 8.31 (211)
Steering Cylinder Rod Diameter (4WD), in (mm) 1.50 (38)
Service Brakes Hydraulic, multiple discs
Parking Brake Mechanical, independent
Front Tire Size (2WD) 12.5/80-18 10PR
Rear Tire Size (2WD) 16.9x28 10PR
Front Tire Size (4WD) 340/80R18
Rear Tire Size (4WD) 16.9R28
Front Track Width, in (mm) 70.4 (1780)
Rear Track Width, in (mm) 67.7 (1714)

Hydraulic System
Hydraulic System Type Closed center load sensing
Hydraulic Pump Type Closed center load sensingVariable displacement, axial piston pump
Hydraulic Pump Flow, gpm (Lpm) 37.0 (139.0)
Hydraulic Pressure, Bar (psi) 207 (3000)
Hydraulic System Capacity, gal (L) 21.0 (79.0)
Valves Type Pressure-compensated

Dimensions and Weight
Wheelbase 83 in (2100 mm)
Transport Length 18 ft 11 in (5760 mm)
Overall Length, (Loader on ground) 18 ft 9 in (5710 mm)
Transport Height 12 ft 3 in (3740 mm)
Height (Cab) 114.6 in (2900 mm)
Height (Exhaust) 106.7 in (2700 mm)
Overall Width 94.7 in (2396 mm)
Ground Clearance 12.6 in (320 mm)
Turning Radius 17 ft 7 in (5350 mm)
Weight (Operating) 16500 lbs (7500 kg)
Weight (Maximum) 21560 lbs (9800 kg)

Loader
Bucket Hinge Pin, Maximum Height 10 ft 10 in (3321 mm)
Dump Angle at Full Height 43 degrees
Dump Clearance at Full Height 8 ft 8 in (2633 mm)
Dump Reach at Full Height 31.4 in (794 mm)
Maximum Bucket Rollback at Ground Level 39 degrees
Digging Depth 3.1 in (78 mm)
Maximum Grading Angle 109 degrees
Maximum Operating Height 13 ft 9 in (4201 mm)
Lift Capacity at Maximum Height 5320 lbs (2416 kg)
Breakout Force 8750 lbs (3977 kg)
Bucket Width, in (mm) 89 (2260)
Bucket Capacity, cu.ft (m3) 29.1 (0.83)
Loader Weight 980 lbs (445 kg)

Backhoe (Standard Stick)
Maximum Digging Depth 15 ft 11 in (4854 mm)
Digging Depth, 2 ft (610 mm) Flat Bottom 15 ft 11 in (4850 mm)
Reach From Swing Pivot at Ground Line 18 ft 6 in (5637 mm)
Loading Height 12 ft 2 in (3712 mm)
Loading Reach 5 ft 9 in (1742 mm)
Swing Arc 180 degrees
Bucket Rotation 205 degrees
Stabilizer Width 7 ft 9 in (2360)
Digging Force (Bucket Cylinder) 11720 lbs (5327 kg)
Digging Force (Crowd Cylinder) 7850 lbs (3568 kg)
Total Side Shift Travel 3 ft 7 in (1096)

Backhoe (Extendable Stick)
Maximum Digging Depth 19 ft 4 in (5894 mm)
Digging Depth, 24 in (610 mm) Flat Bottom 19 ft 3 in (5865 mm)
Reach From Swing Pivot at Ground Line 21 ft 10 in (6664 mm)
Loading Height 14 ft (4274 mm)
Loading Reach 9 ft (2747 mm)
Swing Arc 180 degrees
Bucket Rotation 205 degrees
Stabilizer Width 7 ft 9 in (2360)
Digging Force (Bucket Cylinder) 11610 lbs (5277 kg)
Digging Force (Crowd Cylinder) 5670 lbs (2577 kg)
Total Side Shift Travel 3 ft 7 in (1096)

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