Equipment Specifications Library

Basic Model Information

  • Manufacturer:
    Ditch Witch
  • Model:
    RT40

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Additional Info

DIMENSIONS
Maximum Trench depth: 63" (1.6 m)
Angle of approach: 20°
Angle of departure: 17°
Trench width, min. to max: 6" - 12" (150 mm - 300 mm)
Boom angle, down: 58°
Boom angle, up: 50°
Centerline of trench to outside edge -
Minimum Left: 35" (890 mm)
Minimum Right: 29" (740 mm)
Headshaft height, digging chain: 17" (430 mm)
Overhang, beyond tire: 3.5" (90 mm)
Height: 86" (2.18 m)
Headshaft overhang: 24.5" (620 mm)
Transport Length: 155" (3.94 m)
Wheelbase: 48" (1.22 m)
Spoil discharge reach, min. to max: 17" - 20" (430 mm - 510 mm)
Width: 64" (1.63 m)
Tread: 46" (1.17 m)
Ground clearance: 7" (180 mm)

OPERATION
Maximum forward speed: 4.3 mph (6.9 km/h)
Maximum reverse speed: 2.7 mph (4.4 km/h)
Maximum trenching speed, @ full load (varies with soil conditions): 150 fpm (45.72 m/min)
Vehicle clearance circle (SAE) -
Front steer only: 28 ft (8.53 m)
Coordinated steer: 20 ft (6.10 m)
Basic unit weight: 4,200 lbs (1,910 kg)
Maximum digging chain speed: 420 fpm (128.02 m/min)

BACKFILL BLADE
Blade width: 64" (1.63 m)
Blade height: 14" (356 mm)
Lift height, above ground: 12" (300 mm)
Blade drop, below ground: 8" (200 mm)
Maximum swing angle, left/right: 28°
Tilt angle, up/down: 11°

POWER
Engine: Deutz F3M2011
Fuel: Diesel
Cooling medium: Oil/external
Injection: Direct
Aspiration: Natural
Number of cylinders: 3
Displacement: 142 in3 (2.3 L)
Bore: 3.7" (94 mm)
Stroke: 4.4" (112 mm)
Manufacturer's gross power rating: 42.2 hp (31.5 kW)
Estimated net power rating: 39 hp (29 kW)
Rated speed: 2,300 rpm
Emissions Compliance: EPA Tier 2 (EU Stage IIIa)

POWER TRAIN
Ground drive transmission: Hydrostatic drive, infinitely variable from zero to maximum, foot-pedal and hand-lever operated speed/direction control
Differentials: Dana Model 44, Limited slip (optional); Dana Model 60, limited slip (optional)
Parking brake: Disc, hand-operated
Service brake: Ground drive speed/direction control brakes machine hydraulically when moved to neutral position
Attachment drive transmission: Hydrostatic, lever operated, speed infinitely variable from zero to maximum forward with limited stroke reverse
Trencher drive transmission: Hydrostatic

TIRES/PRESSURE
26 x 12.00-12, 4-ply bar lug: 20 psi (138 kPa)
29 x 12.50-15, 4-ply bar lug: 30 psi (207 kPa)

HYDRAULIC SYSTEM @ 2,300 RPM
Ground drive pump capacity: 29.3 gpm (111 L/min)
Ground drive pump relief pressure: 3,750 psi (258 bar)
Attachment drive, trencher: 5,000 psi (345 bar)
Attachment drive, plow/saw: 3,750 psi (259 bar)
Attachment pump capacity: 29.3 gpm (111 L/min)
Auxiliary pump capacity: 10.2 gpm (39 L/min)
Auxiliary pump relief pressure: 2,500 psi (172 bar)

HYDRAULIC SYSTEM @2,300 RPM
Filtration: 25 psi (1.7 bar) return/charge pump; 15 psi (1 bar) bypass, 10 micron

FLUID CAPACITIES
Fuel Tank: 13 gal (49 L)
Engine Oil: 8 qt (7.6 L)
Hydraulic system: 13 gal (49 L)
Hydraulic reservoir: 9.5 gal (36 L)
Transmission: Hydrostat

BATTERY
Group: 26/26R/70
SAE reserve capacity rating: 110 min
SAE cold crank rating @ 0° F (-18° C): 800 A
Auxiliary power outlet: 12V, 5 A

This information is provided for informational purposes only. HDD Broker LLC cannot warrant the accuracy or completeness of this information. This information is subject to change by the manufacturer. Some specifications may vary by model year.

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