Owner's manual

RT12/RT16/RT20/RT24 Operator’s Manual Specifications - 105
RT20 and RT24
CMW
General
Ditch Witch model RT24, self-propelled, hydrostatic, pedestrian, skid steered, two-wheel drive, rigid frame,
chain-type trencher.
Operational U.S. Metric
Vehicle speeds
Equipped with 18” tires:
Maximum transit forward 243 fpm 74 m/min
Maximum transit reverse 97 fpm 30 m/min
Equipped with tracks:
Maximum transit forward 169 fpm 51 m/min
Maximum transit reverse 68 fpm 21 m/min
Digging chain speed at 3600 rpm 420 fpm 12/m/min
Spoils handling (single, open-end auger):
Outer diameter 17 in 432 mm
Inner diameter 4 in 101 mm
Length 8.75 in 222 mm
Operating weight, maximum (with 33,000-lb [14 969-kg] test, 8” two-pitch
cup-tooth digging chain on 48” boom, RotoWitch, backfill blade, 3 tower
weights, tracks, trench cleaner, and low frame weight)
1601 lb 726 kg
Operating weight, minimum (with 33,000-lb [14 969-kg] test, 4.4” two-
pitch digging chain on 24” roller boom, and 18” tires)
1079 lb 489 kg
Power U.S. Metric
RT20 Engine: Honda GX630
RT24Engine: Honda GX690
Fuel: gasoline
Cooling medium: air
Number of cylinders: two
Displacement
42 in
3
688 cm
3
Bore 3.1 in 78 mm
Stroke 2.8 in 72 mm
RT24: Manufacturer’s net power rating 22.3 hp 16.6 kW
RT20: Manufacturer’s net power rating 20.8 hp 15.5 kW