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Ford 755A Tractor-Loader-Backhoe Specifications

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Complete factory specifications for the Ford 755A tractor loader backhoe, transcribed from the specifications section of the Ford 755A operator's manual. The 755A was the middle generation of Ford's largest integral TLB line — a purpose-built industrial machine powered by a four-cylinder turbocharged diesel. Specifications below cover general dimensions, capacities, engine, transmission, hydraulics, and full loader and backhoe performance data. Need the complete manual? The Ford 755A operator's manual is available as an instant PDF download.

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General Dimensions

Length — Maximum 39 ft. 7 in. (1,206.5 cm)
Length — Minimum 25 ft. 5.4 in. (775.7 cm)
Height — To Top of Exhaust 7 ft. 10 in. (238.8 cm)
Height — To Top of Hood 5 ft. (152.4 cm)
Height — To Top of Steering Wheel 6 ft. 7 in. (200.7 cm)
Height — To Top of Dipstick (Transport Position) 13 ft. (396.2 cm)
Width 7 ft. 2-3/8 in. (219.4 cm)
Ground Clearance — At Front Axle 14.0 in. (35.5 cm)
Ground Clearance — At Transmission 16-1/2 in. (41.9 cm)
Ground Clearance — At Rear Axle Center Housing 15 in. (38.1 cm)
Turning Radius — Without Brakes 12 ft. 6 in. (381.0 cm)
Turning Radius — With Brakes 11 ft. 2 in. (341.0 cm)
Wheelbase 89-1/4 in. (226.8 cm)
Front Wheel Tread 5 ft. 4 in. (162.5 cm)
Rear Wheel Tread 5 ft. 4 in. (162.5 cm)
Weight (includes cab, loader and backhoe buckets) 17,960 lbs. (7,665.8 kg)1

Capacities

Fuel Tank 39.5 U.S. gal. (32.9 Imp. gal. / 149.5 L)
Cooling System 19 U.S. qts. (15.8 Imp. qts. / 18 L)
Engine Crankcase (with filter) 11 U.S. qts. (9.2 Imp. qts. / 10.4 L)
Transmission 28 U.S. qts. (23.2 Imp. qts. / 26.4 L)
Rear Axle 39.6 U.S. qts. (33 Imp. qts. / 37.5 L)
Hydraulic System 43 U.S. gal. (35.8 Imp. gal. / 162.5 L)

Engine

Type Diesel with turbocharger
Number of Cylinders 4
Displacement 256 cu. in. (4,195.9 cc)2
Firing Order 1-3-4-2
Idle Speed 600–700 rpm
Valve Clearance — Intake (Cold) 0.016 in. no-go (0.406 mm)
Valve Clearance — Intake (Warm) 0.014 in. no-go (0.356 mm)
Valve Clearance — Exhaust (Cold) 0.019 in. no-go (0.483 mm)
Valve Clearance — Exhaust (Warm) 0.017 in. no-go (0.432 mm)

Cooling System

Type Pressurized liquid, recirculating by-pass
Water Pump — Type Centrifugal
Water Pump — Drive V-belt
Fan Diameter 19 in. (48.3 cm)
Fan and Alternator Belt Deflection 3/8–5/8 in. (10–16 mm) at 11.3 kg thumb pressure, applied midway between pulleys3
Thermostat — Starts to Open 168°F (76°C)
Thermostat — Fully Open 192°F (89°C)
Radiator Cap 7 psi (0.481 bar)

Transmission, Rear Axle & Brakes

Transmission Type 3 x 3 Power Shift, power reversing, torque converter
Rear Axle Type Double reduction, planetary final drive
Brake Type Mechanically actuated, wet disc
Brake Pedal Free Travel Adjustment 1-1/2 in. – 1-3/4 in. (38.1–44.5 mm)

Electrical System

Alternator 12-volt, heavy duty, 51 amps
Regulator Transistorized
Battery 128 amp-hour rating, negative ground
Starting Motor Solenoid, pre-engaged
Headlamps No. 4419
Rearlamp No. 4427
Instrument Bulb No. 1895
Flasher Warning Lamp Bulb No. 1156

Fuel & Ignition System

Ignition Type Compression
Fuel System Type Diesel
Injection Pump Type In-line

Steering

System Type Hydrostatic
Pump Type Gear
Turns Lock-to-Lock 4.05

Hydraulic System & Cylinders

System Type Open center
Pump Type (Loader and Backhoe) Gear
Pump Location On transmission, below operator's platform
Oil Filter — Type Micronic throw-away with safety by-pass
Oil Filter — Location External, left side of radiator shell
Loader Lift Cylinders Double-acting
Loader Bucket Cylinders Double-acting
Backhoe Lift Cylinder Double-acting
Backhoe Crowd Cylinder Double-acting
Actuator Cylinder Double-acting
Stabilizer Cylinders Double-acting
Swing Cylinders Double-acting

Ford 755A Ground Speeds

Gear Forward Maximum — mph (kph) Reverse Maximum — mph (kph)
Range 1 4.2 (6.7) 4.2 (6.7)
Range 2 7.7 (12.4) 7.7 (12.4)
Range 3 19.3 (31.1) 19.3 (31.1)

Lubricants

Transmission Oil Ford 41
Hydraulic System Oil Ford 48
Rear Axle Oil Ford 134
Power Steering Reservoir Oil Ford 41
Front Wheel Bearings Ford ITMIC 137A
All Lubrication Fittings Ford ITMIC 137A, or good-quality multi-purpose lithium-base grease
Engine Oil Ford 121 (exceeds SF and CD requirements), or equivalent SAE grade selected by outdoor temperature4

Tires

Front Tires — Standard 11.00-16 (12 ply F3)
Front Tires — Optional 14.00-17.5 (10 ply Truck)
Rear Tires — Standard 16.9-28 (8 ply R4)
Rear Tires — Optional 18.4-28 (10 ply R4)

Loader General Dimensions & Performance

Ford 755A equipped with a 1-1/2 cu. yd. (1.15 cu. meter) bucket.

Overall Operating Height 14 ft. 10-1/4 in. (453.0 cm)
Height to Hinge Pin 11 ft. 4 in. (354.4 cm)
Height to ROPS Guard 7 ft. 10 in. (238.8 cm)
Overall Length 26 ft. 2 in. (781.8 cm)
Dump Angle Maximum 50°
Dump Height 8 ft. 7 in. (262.4 cm)
Reach Fully Raised @ 45° 3 ft. 9 in. (115.6 cm)
Rollback 43.4°
Maximum Rollback 71°
Digging Depth (Level Bucket) 7.5 in. (19.0 cm)
Wheelbase 7 ft. 8 in. (233.6 cm)
Bucket Tip to Front Axle 7 ft. 5 in. (226.0 cm)
Height to Loader Lift Arm Frame 5 ft. 9 in. (175.3 cm)

Backhoe Performance & General Dimensions

Transport Height 13 ft. 0 in. (396.0 cm)
Rear Axle to Swing Post 3 ft. 10-5/8 in. (118.0 cm)
Ground Clearance 15 in. (38 cm)
Transport Overhang from C/L of Rear Wheels 14 ft. 7 in. (444.5 cm)
Length of Excavation (one setting, at surface) 22 ft. 7 in. (688.0 cm)
Length of Excavation (at 40 in. / 101.6 cm depth) 19 ft. 1 in. (582.0 cm)
Digging Depth Maximum 17 ft. 2-1/4 in. (524.0 cm)
Digging Depth, 2 ft. (60.9 cm) Flat Bottom 17 ft. 1-1/2 in. (522.0 cm)
Reach from Rear Axle 25 ft. 5 in. (775.0 cm)
Reach from Swing Post 21 ft. 6-1/2 in. (657.0 cm)
Loading Height 12 ft. 4 in. (375.9 cm)
Bucket Rotation 155° and 179°

Other Backhoe Specifications

Backhoe Model Integral
Bucket Model 30 in. 19-591
Reach at 90° Outside Tires, at 64 in. (162.5 cm) Fixed Tread5 18 ft. 0 in. (549.0 cm)
Swing Arc 185°
Undercut Trenching under 5 in. (12.7 cm) Slab 9 ft. 2 in. (279.4 cm)
Maximum Lift — Full Reach to Full Height, Weight at Bucket 2,717 lbs. (1,232.4 kg)
Maximum Lift — Lift and Crowd to Full Height, Weight at Bucket Pivot 4,035 lbs. (1,830.3 kg)
Maximum Digging Force 11,511 lbs. (5,222.6 kg)
Stabilizer Spread (Transport) 6 ft. 8 in. (203.2 cm)
Stabilizer Spread (Operating Position) 9 ft. 11-1/2 in. (304.0 cm)

Notes:
1. Weight is transcribed exactly as printed in the factory manual. The imperial and metric figures do not correspond (17,960 lbs. converts to approximately 8,147 kg; 7,665.8 kg converts to approximately 16,900 lbs.) — this inconsistency appears in the source document itself.
2. Displacement transcribed as printed. 256 cu. in. converts to approximately 4,195 cc (4.2 L); the source's 4,195.9 cc figure differs trivially from the direct conversion.
3. The factory manual gives thumb pressure in kilograms only; 11.3 kg is approximately 25 lbs. (editorial conversion).
4. The manual includes a graphical SAE grade selection chart (SAE 10W, 10W-30, 15W-40, and 30) keyed to outdoor temperature ranges anchored at -13°F (-25°C), 14°F (-10°C), 32°F (0°C), and 90°F (32°C). See the operator's manual for the full chart and diesel fuel sulfur-content provisions.
5. Printed as "Fired Tread" in the source; corrected here to "Fixed Tread" (editorial correction of an apparent typesetting error).

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Manual code: SE 4345 1843

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