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• Manufacturer:
  Ditch Witch
• Model:
  RT40

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