The 74-hp (55.2 kW) RT75 has the compact size and muscle you need for tight residential or commercial jobsites. And you can throw that muscle around in a variety of ways with an assortment of trenchers plus saw, backhoe, vibratory plow, reel carrier, and combination trencher/plow attachments.
KEY FEATURES, RT75
- Solid backfill blade lift arms and cast blade pivot increase structural strength of the backfill components.
- Planetary axles with locking differentials make maximum use of torque at the wheel and offer high ground clearance.
- Four-point tie-downs (at each corner of the machine) provide increased hauling security.
SPECIFICATIONS, RT75
| GENERAL | ||
| Ditch Witch Model RT75 tractor, 4-wheel drive, rigid frame, hydrostatic or powershift ground drive, optional 4-wheel drive steering, hydrostatic or powershift attachment drive, riding unit; with 35 x 19.00-16 tires | ||
| DIMENSIONS | U.S. | METRIC |
| Angle of approach | 20° | |
| Height | 108 in | 2.74 m |
| Length, nose to rear mount | 122 in | 3.10 m |
| Length, transport | 131 in | 3.33 m |
| Wheelbase | 63 in | 1.60 m |
| Width | 71 in | 1.80 m |
| Tread | 55 in | 1.40 m |
| OPERATION | U.S. | METRIC |
| With hydrostatic transmission | ||
| Forward speeds | ||
| Low/Low | 0.7 mph | 1.1 km/h |
| Low/High | 1.4 mph | 2.2 km/h |
| High/Low | 5.2 mph | 8.4 km/h |
| High/High | 9.9 mph | 15.9 km/h |
| Reverse speeds | ||
| Low/Low | 0.4 mph | 0.7 km/h |
| Low/High | 0.8 mph | 1.4 km/h |
| High/Low | 3.3 mph | 5.2 km/h |
| High/High | 6.2 mph | 9.9 km/h |
| With powershift transmission | ||
| Forward speeds | ||
| Low/Low | 0.4 mph | 0.6 km/h |
| High/Low | 5.8 mph | 9.3 km/h |
| High/High | 8.6 mph | 13.8 km/h |
| Reverse speeds | ||
| Low/Low | 0.4 mph | 0.6 km/h |
| High/Low | 5.8 mph | 9.3 km/h |
| High/High | 8.6 mph | 13.8 km/h |
| Vehicle clearance circle (SAE), | ||
| wall-to-wall, w/backfill blade | ||
| Front steer only | 32 ft | 9.75 m |
| Coordinated steer | 20 ft | 6.10 m |
| Basic unit weight | 6920 lb | 3140 kg |
| Ground clearance | ||
| Hydrostatic | 11 in | 280 mm |
| Powershift | 9 in | 229 mm |
| BACKFILL BLADE | U.S. | METRIC |
| with 35 x 19.00-16 tire | ||
| Blade width | 72 in | 1.83 m |
| Blade height | 17 in | 430 mm |
| Lift height, above ground | 19 in | 480 mm |
| Blade drop, below ground | 13 in | 330 mm |
| Maximum swing angle, left/right | 30° | |
| Tilt angle, up/down | 24° | |
| POWER | U.S. | METRIC |
| Engine | John Deere 4045TF270 | |
| Displacement | 276 in3 | 4.5 L |
| Bore | 4.2 in | 106 mm |
| Stroke | 5 in | 127 mm |
| Manufacturer”s gross power rating (per SAE J1995) | 74 hp | 55 kW |
| Estimated net power (per SAE J1349) | 71 hp | 53 kW |
| Rated speed | 2500 rpm | |
| Maximum engine tilt angles: Exceeding these operating angles will cause engine damage; this does not imply that the machine is stable to the maximum angle of safe engine operation. | ||
| Longitudinal | 30° | |
| Lateral | 30° | |
| POWER TRAIN | U.S. | METRIC |
| Ground drive transmission | Hydrostatic or powershift | |
| Attachment drive transmission: Hydrostatic, lever-operated, speed infinitely variable from zero to maximum, or powershift with 2-speed control of forward and reverse. | ||
| DIFFERENTIALS | ||
| Planetary front and rear with optional rear steering | ||
| Service Brake | Disc, foot-operated | |
| Parking brake | Disc, hand-operated | |
| Tires/pressure | ||
| 31 x 15.50-15, 10-ply bar lug | 45 psi | 310 kPa |
| 35 x 19.00-16, 12-ply bar lug | 55 psi | 379 kPa |
| HYDRAULIC SYSTEM @ 2500 RPM | U.S. | METRIC |
| With hydrostatic transmission | ||
| Pump capacity | ||
| Ground drive | 30.4 gpm | 115 L/min |
| Attachment | 36.3 gpm | 137 L/min |
| Auxiliary | 13 gpm | 49 L/min |
| Pump relief pressure | ||
| Ground drive | 5000 psi | 345 bar |
| Attachment | 6090 psi | 420 bar |
| Auxiliary | 2500 psi | 172 bar |
| With powershift transmission | ||
| Pump capacity | ||
| Ground drive | 9.5 gpm | 36 L/min |
| Auxiliary | 13 gpm | 49 L/min |
| Pump relief pressure | ||
| Ground drive | 4000 psi | 276 bar |
| Auxiliary | 2500 psi | 172 bar |
| FLUID CAPACITIES | U.S. | METRIC |
| Fuel tank | 30 gal | 114 L |
| Engine oil, w/filter | 8 qt | 7.5 L |
| Hydraulic reservoir | 13 gal | 49 L |
| Hydraulic system | 18 gal | 68 L |
| Cooling system | 17 qt | 16 L |
| Transmission fluid (powershift only) | 10 qt | 11 L |
| BATTERY | U.S. | METRIC |
| Group | 34 h | |
| SAE reserve capacity | 120 min | |
| SAE cold crank rating @ 0° F (-18° C) | 800 A | |
| Auxiliary power outlet | 12V, 10 A | |
| Specifications are general and subject to change without notice. If exact measurements are required, equipment should be weighed and measured. Due to selected options, delivered equipment may not necessarily match that shown. *(Per SAE J1995) **(Per SAE J1349) | ||
