RT125 QUAD

RT125 QUAD Heavy Duty Trencher
Nothing lets you tackle more types of terrain than the extraordinarily productive, powerful and stable RT125 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. Its newly redesigned operator’s station, with comfort features including an ergonomic, swivel operator seat and controls console, and increased legroom, keeps you more productive. With the RT125 Quad, nothing slows you down.
Key Features
  • 121-hp turbocharged Tier 4 Deutz® diesel engine and reliable hydrostatic transmission keep the RT125 Quad running strong all day long.
  • Standard four-wheel drive make the RT125 Quad the ideal heavy-duty tractor for both paved and off-road work.
  • When you need extra pull, the RT125 Quad’s three-speed, shift-on-the-fly ground drive senses load conditions and automatically adjusts for maximum performance.
  • 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.
  • Best-in-class ground clearance of 15.5 inches helps the RT125 Quad be more productive over rough terrain.
  • Innovative, long-lasting chevron-pattern tracks provide superior traction.
  • Dial control design gives the operator precise control of the ground drive speed and attachments, maximizing production.
  • Large selection of hydrostatic attachments—trencher, plow, earth saw, trencher/plow combo, plus a choice of front-mount utility backhoe or reel carrier—for greater productivity.
  • Cruise-control system senses engine load and automatically adjusts ground drive speed for maximum production.
  • Custom designed backfill blade control with an electronic float provides excellent controllability at your fingertips.
  • The RT125 Quad’s heavy-duty undercarriage is built for durability and long life.
  • Plow attachment’s heavy-duty lift arms that transfer the RT125 Quad’s tremendous power and drawbar to the plow blade.
  • Standard tilt-frame configuration helps you dig a vertical trench on uneven ground.
  • Rear steering gives the RT125 Quad a tighter turn radius, resulting in better jobsite maneuverability and increased versatility while digging.
  • Newly designed operator’s station offers more comfort and convenience.
  • Ergonomically designed rotating seat and controls console rotates 120 degrees with the operator for easier, more comfortable operation.
  • Improved design adds plenty of leg room for greater comfort.
  • Updated foot pedal design, easy-to-read gauges and controls and a tilt steering column provide maximum productivity.
  • 5-inch color LCD engine display provides all engine information and diagnostics while rotating with the operator so it’s always there for you to easily view.
  • Rubber isolators between the cab and frame reduce vibration and provides a comfortable ride for the operator.
  • Newly designed seat with a higher back provides more support and comfort for long days on the job.
Specifications
RT125 QUAD
Dimensions
Height
120 in
Nose to rear mount length
126.3 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
42.4 ft
- Coordinated steer
21.6 ft
Ground clearance
15.5 in
Basic unit weight
15,300 lb
Maximum allowable tractor weight
27,200 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
12°
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 4 Final
Power Train
Ground drive transmission
Hydrostatic
Attachment drive transmission
Hydrostatic
Differentials
Planetary front and rear with rear steering
Service brake
Hydrostatic
Parking brake
Disc type, SAHR
Tracks
450 x 86 x 42, rubber track, chevron pattern
Tires/Pressure
Hydraulic System
Ground drive @ 2300 rpm
- Pump capacity
47 gpm
- Pump relief pressure
6,300 psi
Attachment
- Pump capacity
45 gpm
- Pump relief pressure
6,500 psi
Auxiliary
- Pump capacity
5.1 pgm
- Pump relief pressure
3,000 psi
Fluid Capacities
Fuel Tank
38 gal
Engine Oil
8.5 qt
Hydraulic reservoir
20 gal
Hydraulic system
30 gal
Cooling system
4.25 qt
Def tank
2.6 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
2.9 m/sec2
- Whole body
0.5 m/sec2
Conveyor Drive
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