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Cat 426C Backhoe Loader

The Caterpillar 426C backhoe loader was manufactured from 1996 to 2000. The components of Cat 426C powertrain system: Caterpillar 3054 DIT four-stroke 4-cylinder direct injection turbocharged diesel engine, and 4x4 power shuttle transmission with a single-stage torque converter.

A 4L (243 cubic inches) engine power rating is 80 hp (60 kw) at 2200 rpm. The max travel speed (forward/reverse): 21.1 mph (34 km/h). The closed center load-sensing hydraulic system includes an axial piston pump with fluid flow rate of 43 gal/min (162 l/min). The main relief pressure is 3000 psi (207 bar).

The Cat 426C is equipped with 11L-16 front tyres and 16.9-24 rear tyres (2WD models), or 12.5/80-18 front tyres and 19.5L-24 rear tyres (4WD models). The loader has a maximum lift height of 10 ft 9 in (3290 mm) at pin, and clearance with bucket dumped of 100 in (2530 mm). The lift capacity is rated at 7034 lbs (3190 kg) to max height, and bucket's breakout force is 10541 lbs (4790 kg). The loader bucket has a width of 95 in (2400 mm) and nominal heaped capacity of 29.2 cu.ft (0.84 m3).

The backhoe work ranges consist of a bucket digging force of 14440 lbs (6560 kg), standard dipperstick digging force of 8510 lbs (3870 kg), and extendable dipperstick digging force of 6310 lbs (2870 kg). The maximum digging depth (standard stick or extendable stick) is 15 ft 6 in (4721 mm) or 20 ft 3 in (6169 mm), and reach from swing pivot at ground level (standard stick or extendable stick) is 19 ft 10 in (6056 mm) or 24 ft 3 in (7395 mm). The backhoe is equipped with 16", 20", 24, 30" and 36" standard material buckets, 12", 16", 18", 24, 30", 36" heavy duty material buckets, and 18", 24" extreme service buckets.

Engine
Engine Model Caterpillar 3054 DIT
Engine Type 4-Stroke, 4-cylinder, turbocharged diesel
Number of Cylinders Four, In-Line
Displacement, cu in (L) 243 (4.00)
Engine Bore, in (mm) 3.94 (100.0)
Engine Stroke, in (mm) 5.00 (127.0)
Aspiration Turbocharged
Maximum Engine Power, hp (kW) 84.0 (62.7)
Rated Engine Power, hp (kW) 80.0 (60.0)
Rated Engine Speed, rpm 2200
Compression 16.2:1
Fuel System Direct Injection
Rotation Counterclockwise
Air Cleaner Dry-type
Fuel Tank Capacity, gal (L) 34.0 (128.0)
Oil Capacity, qts (L) 7.7 (7.3)
Coolant Capacity, qts (L) 20.1 (18.9)
Electrical System Rating, Volts 12
Alternator Rating, Amp 52

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) 19.1 (18.0)
Maximum Forward Speed, mph (kph) 21.1 (34.0)
Maximum Reverse Speed, mph (kph) 21.1 (34.0)

Wheels and Tires
Drive Wheels 2WD/4WD
Steering Configuration All Wheel Steer (AWS)
Steering System Full hydrostatic steering with 3 modes
Steering Modes Two wheel steer, circle steer, and independent rear wheels
Steering Cylinder Two, Double-acting (front and rear)
Steering Cylinder Bore (Front Wheels), in (mm) 2.6 (65)
Steering Cylinder Stroke (Front Wheels), in (mm) 8.3 (210)
Steering Cylinder Rod Diameter (Front Wheels), in (mm) 1.4 (36)
Steering Cylinder Bore (Rear Wheels), in (mm) 3.1 (80)
Steering Cylinder Stroke (Rear Wheels), in (mm) 4.1 (104)
Steering Cylinder Rod Diameter (Rear Wheels), in (mm) 1.6 (40)
Service Brakes Fully enclosed, hydraulic, multiple discs
Parking Brake Mechanical, independent
Front Tire Size (2WD) 11L-16, 12 PR, F3
Front Tire Size (4WD) 12.5/80-18, 10 PR, SG
Rear Tire Size (2WD) 16.9-24, 8 PR, R4
Rear Tire Size (4WD) 19.5L-24, 8 PR
Rear Tire Size (AWS) 19.5L-24, 10 PR


Hydraulic System
Hydraulic System Type Load-sensing, closed center
Hydraulic Pump Type Variable, axial piston
Hydraulic Pump Flow, gpm (Lpm) 43.0 (162.0)
Hydraulic Pressure, Bar (psi) 207 (3000)
Hydraulic System Capacity, gal (L) 20.8 (79.0)
Valves Type Pressure-compensated

Dimensions and Weight
Wheelbase 83 in (2100 mm)
Transport Length 23 ft 10 in (7260 mm)
Overall Length, (Loader on ground) 23 ft 11 in (7280 mm)
Transport Height 12 ft 5 in (3770 mm)
Height (Cab) 112.6 in (2850 mm)
Height (Exhaust) 105.5 in (2670 mm)
Overall Width 88.3 in (2235 mm)
Ground Clearance 11.5 (291 mm)
Front Tread 78.1 in (1977 mm)
Rear Tread 67.7 in (1714 mm)
Turning Radius (Two Wheel Steer) 17 ft 9 in (5400 mm)
Turning Radius (Circle Steer) 17 ft 1 in (5200 mm)
Turning Radius (Independent Rear Wheels) 15 ft 7 in (4750 mm)
Weight 15450 lbs (7010 kg)

Loader
Bucket Hinge Pin, Maximum Height 10 ft 9 in (3290 mm)
Dump Angle at Full Height 45 degrees
Dump Clearance at 45 deg 100 in (2530 mm)
Dump Reach at 45 deg 32 in (810 mm)
Maximum Bucket Rollback at Ground Level 40 degrees
Digging Depth 4.2 in (105 mm)
Maximum Grading Angle 108 degrees
Maximum Operating Height 13 ft 8 in (4170 mm)
Lift Capacity at Maximum Height 7034 lbs (3190 kg)
Breakout Force 10541 lbs (4790 kg)
Bucket Width 95 in (2400 mm)
Bucket Capacity 29.2 cu.ft (0.84 m3)
Loader Weight 1012 lbs (460 kg)

Backhoe (Standard Stick)
Maximum Digging Depth 15 ft 6 in (4721 mm)
Digging Depth, 2 ft (610 mm) Flat Bottom 15 ft 4 in (4696 mm)
Overall Operating Height at Full Lift 18 ft 11 in (5752 mm)
Loading Height 12 ft 6 in (3815 mm)
Reach From Swing Pivot at Ground Line 19 ft 10 in (6056 mm)
Loading Reach 5 ft 7 in (1711 mm)
Swing Arc 180 degrees
Bucket Rotation (Vertical Wall Position) 170 degrees
Bucket Rotation (Truck Loading Position) 170 degrees
Stabilizer Spread (Operating Position) 10 ft 7 in (3219 mm)
Stabilizer Spread (Transport Position) 7 ft 9 in (2352 mm)
Digging Force (Bucket Cylinder) 14440 lbs (6563 kg)
Digging Force (Crowd Cylinder) 8510 lbs (3870 kg)

Backhoe (Extendable Stick)
Maximum Digging Depth 20 ft 3 in (6169 mm)
Digging Depth, 2 ft (610 mm) Flat Bottom 20 ft 1 in (6129 mm)
Overall Operating Height at Full Lift 21 ft 11 in (6667 mm)
Loading Height 16 ft 2 in (4925 mm)
Reach From Swing Pivot at Ground Line 24 ft 3 in (7395 mm)
Loading Reach 8 ft 11 in (2717 mm)
Swing Arc 180 degrees
Bucket Rotation (Vertical Wall Position) 165 degrees
Bucket Rotation (Truck Loading Position) 165 degrees
Stabilizer Spread (Operating Position) 10 ft 7 in (3219 mm)
Stabilizer Spread (Transport Position) 7 ft 9 in (2352 mm)
Digging Force (Bucket Cylinder) 14440 lbs (6560 kg)
Digging Force (Crowd Cylinder) 6310 lbs (2870 kg)

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