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• Manufacturer:
  Ditch Witch
• Model:
  RT55

DIMENSIONS
Trench depth, maximum: 62" (1.58 m)
Angle of approach: 20°
Trench width, min. to max.: 6" - 12" (150 mm - 300 mm)
Boom angle, down: 55°
Boom angle, up: 51°

Centerline of trench to outside edge
Left, min.: 23.5" (597 mm)
Right, min.: 9" (229 mm)

Headshaft height, digging chain: 29" (737 mm)
Height: 95.2" (2.42 m)
Headshaft overhang: 42" (1.07 m)
Length, nose to rear mount: 114" (2.90 m)
Length, transport: 128" (3.25 m)
Wheelbase: 60" (1.52 m)
Spoil discharge reach, min. to max.:
17" - 30" (430 mm - 760 mm)
Width: 71" (1.80 m)
Tread: 55" (1.40 m)
Ground clearance: 10" (254 mm)
Rear axle, center to rear attachment mounting holes: 14.7" (373 mm)

OPERATION
Maximum forward speed
Low/1st: 1.7 mph (2.7 km/h)
High/2nd: 5.5 mph (8.9 km/h)

Maximum reverse speed
Low: 1.1 mph (1.8 km/h)
High: 3.4 mph (5.5 km/h)

Maximum trenching speed, @ full load (varies with soil condition): 150 fpm (45.72 m/min)

Vehicle clearance circle (SAE)
Front steer only: 33.5 ft (10.21 m)
Coordinated steer: 21.5 ft (6.55 m)
Basic unit weight: 5610 lb (2545 kg)
Front counterweight: 1915 lb (869 kg)

Maximum digging chain speed: 764 fpm 232.87 m/min

BACKFILL BLADE
Blade width: 72" (1.83 m)
Blade height: 14" (356 mm)
Lift height, above ground: 17" (430 mm)
Blade drop, below ground: 13" (330 mm)
Maximum swing angle (left/right): 30°
Tilt angle (up/down): 16°

POWER
Engine: Deutz F4M2011
Fuel: Diesel
Cooling medium: Oil/external
Injection: Direct
Aspiration: Natural
Number of cylinders: 4
Displacement: 189 in3 (3.1 L)
Bore: 3.7" (94 mm)
Stroke: 4.4" (112 mm)
Manufacturer's gross power rating (SAE J1995): 60 hp (45 kW)
Estimated net power rating (SAE J1349): 57 hp (42 kW)
Rated speed: 2600 rpm
Emissions Compliance: EPA Tier 2 (EU Stage II)

POWER TRAIN
Ground drive transmission: Hydrostatic drive, infinitely variable from zero to maximum, foot-pedal and hand-lever operated speed/direction control

Differentials: Planetary front and rear with optional rear steering

Parking brake: Spring-applied, pressure-released

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

Trencher drive transmission: Hydrostatic

TIRES/PRESSURE
31 x 15.50-15, 8-ply, bar lug: 40 psi (276 kPa)
35 x 19.00-16, 12-ply, bar lug: 55 psi (379 kPa)

HYDRAULIC SYSTEM @ 2600 RPM
Ground drive pump capacity: 32 gpm (121 L/min)
Ground drive pump relief pressure: 5000 psi (345 bar)
Attachment drive, trencher: 5450 psi (376 bar)
Attachment drive, plow/saw: 5450 psi (376 bar)
Attachment pump capacity: 32 gpm (121 L/min)
Auxiliary pump capacity: 8/6 gpm (30/23 L/min)
Auxiliary pump relief pressure: 3000 psi (207 bar)

FLUID CAPACITIES
Fuel tank: 19.5 gal (74 L)
Engine oil: 16 qt (15 L)
Hydraulic system: 20 gal (76 L)
Hydraulic reservoir: 12 gal (45 L)
Transmission: Hydrostat

BATTERY
Group: 78 u
SAE reserve capacity rating: 110 min
SAE cold crank rating @ 0° F (-18): 800 A
Auxiliary power outlet: 12V, 10A