RT120 QUAD

RT120 QUAD Heavy Duty Trencher
When you’ve got a lengthy utility or telecom installation, you’re bound to run into all types of terrain along the way. That’s when you’ll begin to realize the true value of the extraordinarily stout, powerful and stable RT120 Quad. Its massive undercarriage, superior Quad Track System and three-speed, shift-on-the fly transmission combine to handle whatever the jobsite throws at you. And driving everything is a powerful, Tier-4-compliant diesel engine that meets all emissions requirements. With the RT120 Quad, nothing slows you down.
Key Features
  • 120-hp Deutz diesel engine and reliable hydrostatic transmission keep the RT120 Quad running strong all day long; engine is Tier-4 compliant, requiring no expensive after-treatment.
  • The RT120 Quad’s heavy-duty undercarriage is built for durability and long life.
  • Innovative, long-lasting chevron-pattern tracks provide maximum traction in wet conditions and on slopes.
  • Heavy-duty, robust track frames—designed and built by the Ditch Witch organization—weigh 1,500 lb each (including track), providing a lower center of gravity for increased stability and drawbar.
  • Dial control design gives the operator precise control of the ground drive speed and attachments.
  • Standard four-wheel drive and four-wheel steering make the RT120 Quad the ideal heavy-duty tractor for both paved and off-road work.
  • Removable side panels provide easy access to service areas; engine service points are conveniently located on the left side, and the oil level can be checked without opening the engine enclosure.
  • When you need extra pull, the RT120 Quad’s three-speed, shift-on-the-fly ground drive senses load conditions and automatically adjusts for maximum performance.
  • Large selection of hydrostatic attachments—plus a choice of front-mount utility backhoes and a reel carrier—for greater productivity.
  • Plow attachment features heavy-duty lift arms that withstand the RT120 Quad’s tremendous power and drawbar.
  • Best-in-class ground clearance of 15.5 inches helps the RT120 Quad be more productive in and around bar ditches, creek beds and uneven terrain in general.
  • Standard tilt frame configuration helps you dig a vertical trench on uneven ground.
  • Standard rear steer gives the RT120 Quad a tighter turn radius, resulting in better jobsite maneuverability and increased versatility while digging.
  • Equipped with an electrically controlled pump that requires minimal maintenance (no cables to adjust) and provides better response and controllability.
  • Cruise-control system senses engine load and automatically adjusts ground drive speed for consistent production.
  • Operator’s station features a color LCD engine display that provides all engine information and diagnostics.
Specifications
RT120 QUAD
Dimensions
Height
117 in
Nose to rear mount length
125 in
Length, transport
166 in
Wheelbase
79 in
Width
89 in
Angle of approach
34°
Tread
71 in
Operation
Forward speeds
- Low
2 mph
- Medium
4.4 mph
- High
7.2 mph
Reverse speeds
- Low
2 mph
- Medium
4.4 mph
- High
4.7 mph
Vehicle clearance circle (SAE), wall-to-wall, w/ backfill blade
- Front steer only
39.5 ft
- Coordinated steer
27 ft
Ground clearance
15.5 in
Basic unit weight
13,600 lb
Maximum allowable tractor weight
26,200 lb
Front counterweight
1,300 lb
Side counterweight (each)
250 lbs.
Backfill Blade
Blade width
80 in
Blade height
17 in
Lift height, above ground
26 in
Blade drop, below ground
10 in
Maximum swing angle, left/right
30°
Tilt angle, up/down
24°
Power
Engine
Deutz TCD3.6L4
Fuel
Diesel
Cooling medium
Liquid
Injection
Direct
Aspiration
Turbocharged & charge air cooled
Number of cylinders
4
Displacement
221 in3
Bore
3.86 in
Stroke
4.72 in
Manufacturer's gross power rating (SAE J1995)
121 hp
Rated speed
2,300 rpm
Engine tilt angles, maximum
- Longitudinal
30°
- Lateral
30°
Emissions compliance
EPA Tier 4i
Power Train
Ground drive transmission
Hydrostatic
Attachment drive transmission
Hydrostatic
Differentials
Planetary front and rear with rear steering
Service brake
Hydrostatic
Parking brake
Disc, hand-operated
Tracks
450 x 86 x 42, rubber track, chevron pattern
Tires/Pressure
Hydraulic System
Ground drive @ 2300 rpm
- Pump capacity
47.4 gpm
- Pump relief pressure
6,200 psi
Attachment
- Pump capacity
47.4 gpm
- Pump relief pressure
6,200 psi
Auxiliary
- Pump capacity
13.8 pgm
- Pump relief pressure
3,300 psi
Fluid Capacities
Fuel Tank
38 gal
Engine Oil
8.4 qt
Hydraulic reservoir
20 gal
Hydraulic system
25 gal
Cooling system
12.3 qt
Battery
2 used
Group 65
SAE reserve capacity rating
165 min
SAE cold crank rating @ 0° F (-18° C)
875 amps
Auxiliary power outlet
12V, 10 amps
Noise Level
Operator
92 dBA sound pressure per ISO 6394
Exterior
109 dBA sound pressure per ISO 6394
Differentials
General
Vibration Level
During normal operation, vibration transmitted to the operator's:
- Hand/arm
8.12 m/sec2
- Whole body
1.44 m/sec2
Conveyor Drive
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