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Ford 655A Backhoe Loader

The Ford 655A backhoe loader was manufactured between 1985 and 1988. The Ford 655A powerline system components: a 4.2L (256 cu.in) 4-cylinder direct injection liquid-cooled diesel engine, 4x4 partial synchronized transmission, and single stage torque converter with 2.78:1 torque ratio. The diesel engine output power is 72 hp (53.7 kW) at 2200 rpm.

The max travel speed (forward/reverse): 18.6 mph (29.9 kph) and 18.4 mph (29.6 kph). The open center hydraulic system used a gear pump with flow rate of 28.5 gal/min (108 l/min). The hydraulic system pressure is 2400 psi (166 bar).

The Ford 655A is equipped with 11Lx16 (2WD) or 10.5x18 (4WD) front tires and 16.9x28 rear tires. The loader has a lift capacity (pivot pin) of 5250 lbs (2380 kg) to full height of 129" (3270 mm), and bucket's breakout force of 11850 lbs (5375 kg). The bucket dump clearance is 105" (2660 mm) at maximum dump angle of 55 degrees. The time to raise the boom is 4.3 seconds from ground level to maximum height, and bucket dump time is 1.6 seconds. The heaped capacity of 7-ft general purpose bucket is 1.0 cu.yd (0.80 m3).

The backhoe has a maximum digging depth of 232" (5890 mm). The bucket digging force is 8950 lbs (4060 kg), and dipper stick digging force is 6640 lbs (3010 kg). The overall reach from swing pivot at ground level is 275" (6980 mm). The backhoe can be equipped with 12" (303 mm), 18" (455 mm), 24" (610 mm), 30" (760 mm), and 36" (915 mm) buckets.

Engine
Engine Model Ford
Engine Type 4-Stroke, four-cylinder liquid-cooled diesel
Number of Cylinders 4
Displacement, cu in (L) 256 (4.20)
Engine Bore, in (mm) 4.40 (112.0)
Engine Stroke, in (mm) 4.21 (107.0)
Aspiration Naturally aspirated
Rated Engine Power, hp (kW) 72.0 (53.7)
Rated Engine Speed, rpm 2200
Maximum Torque, Nm (ft-lb) 366 (270)
Torque Speed, rpm 1400
Compression Ratio 16.3:1
Firing Order 1-3-4-2
Fuel System Direct injection
Injection Pump Type Rotary
Governor Type Mechanical
Air Cleaner Dual dry element
Intake Valve Clearance, in (mm) 0.015 (0.38)
Exhaust Valve Clearance, in (mm) 0.018 (0.46)
Fuel Tank Capacity, gal (L) 24.0 (90.8)
Oil Capacity, qts (L) 9.0 (8.5)
Coolant Capacity, qts (L) 15.0 (14.2)
Electrical System Rating, Volts 12
Charging System Alternator
Alternator Rating, Amps 51/72

Transmission
Transmission Type Torque Converter
Gearbox Type 4F/4R, partial synchronized
Number of Forward Gears 4
Number of Reverse Gears 4
Torque Converter Type Single stage
Torque Converter Ratio 2.78:1
Oil Capacity, qts (L) 19.0 (18.0)
Maximum Forward Speed, mph (kph) 18.6 (29.9)
Maximum Reverse Speed, mph (kph) 18.4 (29.6)

Wheels and Tires
Drive Wheels 2WD/4WD
Steering Configuration Front steer
Steering System Hydrostatic power
Brakes Type Differential mechanical wet disc
Front Tire Size (2WD) 11Lx16
Rear Tire Size (2WD) 16.9x28
Front Tire Size (4WD) 10.5x18
Rear Tire Size (4WD) 16.9x28
Front Tread, in (mm) 68 (1720)
Rear Tread, in (mm) 64 (1620)


Hydraulic System
Hydraulic System Type Open Center
Hydraulic Pump Type Gear
Implement Pump Flow, gpm (Lpm) 28.5 (108.0)
Steering Pump Flow, gpm (Lpm) 5.9 (22.4)
Hydraulic Pressure, Bar (psi) 166 (2400)
Hydraulic Fluid Capacity, gal (L) 21.0 (79.5)
Steering Oil Capacity, qts (L) 2.0 (1.9)

Dimensions and Weight
Wheelbase, in (mm) 85 (2150)
Length (with Backhoe/Loader), in (mm) 276 (7010)
Height (Cab), in (mm) 107.5 (2730)
Height (ROPS), in (mm) 106 (2690)
Overall Width, in (mm) 85 (2150)
Ground Clearance, in (mm) 15 (380)
Weight (Standard Backhoe), lb (kg) 14830 (6725)
Weight (Extendable Backhoe), lb (kg) 15825 (7180)

Loader
Loader Model Ford
Maximum Lift Height (to Pin), in (mm) 129 (3270)
Clearance, Dumped Bucket, in (mm) 105 (2660)
Reach At Max. Lift Height, in (mm) 25.9 (650)
Dump Angle, deg 55
Rollback Angle, deg 40
Breakout Force (at Pin), lb (kg) 11850 (5375)
Lift Capacity To Max. Height (at Pin), lb (kg) 5250 (2380)
Bucket Width, in (mm) 84 (2130)
Bucket Capacity, cu.yd (m3) 1.0 (0.80)
Raising Time to Full Height, sec 4.3
Bucket Dumping Time, sec 1.6
Lowering Time, sec 2.3

Standard Backhoe
Digging Depth, in (mm) 185 (4690)
2-ft Flat Digging Depth, in (mm) 183 (4640)
8-ft FlatDigging Depth, in (mm) 169 (4290)
Reach from Swing Pivot, in (mm) 231 (5860)
Loading Height, in (mm) 137 (3470)
Swing Arc, deg 180
Bucket Rotation, deg 179
Maximum Transport Height, in (mm) 144 (3650)
Bucket Digging Force, lb (kg) 9735 (4415)
Dipperstick Digging Force, lb (kg) 6920 (3139)
Bucket Width, in (mm) 12 (305)
Bucket Width, in (mm) 18 (455)
Bucket Width, in (mm) 24 (605)
Bucket Width, in (mm) 30 (760)
Bucket Width, in (mm) 36 (910)

Extendable Backhoe
Digging Depth (Max), in (mm) 232 (5890)
2-ft Flat Digging Depth, in (mm) 230 (5840)
8-ft FlatDigging Depth, in (mm) 219 (5560)
Reach from Swing Pivot, in (mm) 275 (6980)
Loading Height, in (mm) 153 (3880)
Swing Arc, deg 180
Bucket Rotation, deg 174
Maximum Transport Height, in (mm) 144 (3650)
Bucket Digging Force, lb (kg) 8950 (4060)
Dipperstick Digging Force, lb (kg) 6640 (3010)
Bucket Width, in (mm) 12 (305)
Bucket Width, in (mm) 18 (455)
Bucket Width, in (mm) 24 (605)
Bucket Width, in (mm) 30 (760)
Bucket Width, in (mm) 36 (910)

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