RT12 WALK-BEHIND TRENCHER

Whenever you work, the innovative hydraulic oil cooling system of the 16-hp (11.9 kW) RT12 will keep this compact trencher working steadily, even on the hottest days. And wherever you work, the RT12 trencher can get you there via high-flotation rubber tires or heavy-duty tracks that "walk" or oscillate 12 degrees. With either tires or tracks, you'll have plenty of stability and traction to drive across trenches, over curbs, and through other rough and uneven terrain.

KEY FEATURES

DETAILS

LITERATURE

MANUAL

OFFERS

SPECS

SAFETY

JOB RELATED

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KEY FEATURES,

RT12

Hydraulic steering makes this compact trencher more maneuverable and more productive.
Designed with maximum weight on the digging chain so you can put more product in the ground faster.
Trail wheel that supports the oscillating tracks increases stability over uneven and rough terrain and reduces breakover when loading and unloading.

DETAILS,

RT12

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Best-in-class mobile speeds (up to 3.7 mph/ 5.9 k/h, with tires) so you'll spend less time mobiling to the jobsite and more time getting the job done.
Optional, inexpensive backfill blade is designed to make backfilling virtually effortless.
Optional Roto Witch^® boring attachment, enables you to bore under sidewalks, driveways, and other obstacles without bringing in extra equipment; no competing trencher in its horsepower class can do this.
Only three color-coded controls are needed to operate the amazingly easy-to-use RT12 walk-behind trencher.

Auger and headshaft supported by outboard bearing support, for reliable productivity trench after trench.
For trenching in tough ground conditions, torque to the trencher chain can be increased with the simple change of a sprocket.
Digging systems are made of genuine Ditch Witch chains, teeth, and sprockets, which dig longer and last longer than any other digging system on the market.
Other options include a remote air filter for the Honda engine, hour-meter/tachometer, and an S1A trailer package.

LITERATURE,

RT12

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English

MANUAL,

RT12

SPECIFICATIONS,

RT12

DIMENSIONS	U.S.	METRIC
Trench depth, maximum	36 in	915 mm
Trench width	4.3 in - 6 in	110 mm - 150 mm
Boom travel down: 60°
Boom travel up: 60°
Headshaft height, digging chain	8.6 in	220 mm
Length	84 in	2.1 m
Width	33 in	840 mm
Height	47 in	1.2 m
Tread	26 in	660 mm
Angle of departure: 35°
Wheelbase	32 in	810 mm
Centerline trench to outside edge of machine, left	15 in	381 mm
Centerline trench to outside edge of machine, right	18 in	457 mm
Spoil discharge reach	10.6 in	270 mm
Angle of approach: 85°
OPERATION	U.S.	METRIC
Vehicle speeds
Maximum transit forward (tire)	280 fpm	85.3 m/min
Maximum transit reverse (tire)	114 fpm	34.7 m/min
Maximum transit forward (track)	198 fpm	60 m/min
Maximum transit reverse (track)	97 fpm	29.5 m/min
Digging chain speed
12-tooth sprocket (standard)	389 fpm	118.5 m/min
10-tooth sprocket	324 fpm	98.7 m/min
Spoils handling (single auger)
Outer diameter	12 in	305 mm
Inner diameter	4 in	102 mm
Length	9 in	229 mm
Operating weight (with 33,000-lb test, two-pitch digging chain and 24-in/610-mm roller boom)	1020 lb	463 kg
POWER
Engine: Briggs & Stratton Vanguard V-Twin 4-stroke OHV
Fuel: Gasoline
Cooling medium: Air
Number of cylinders: 1
Displacement	29.23 in³	479 cm³
Bore	2.68 in	68 mm
Stroke	2.60 in	66 mm
Manufacturer's Gross Power Rating (SAEJ1940)	16 hp	11.9 kW
Rated Speed: 3600 rpm
POWER TRAIN
Ground drive transmission: Hydrostatic, speed infinitely variable, controlled with 2 levers
Digging chain drive: Hydraulic direct drive, dual lever operated, 1 speed forward and reverse
Trencher drive: Hydraulic direct drive
Pump drive: Direct drive from engine
Spoils handling drive: Mechanical, attached to and rotates with headshaft
TIRES
Drive
18 x 9.5 x 8 bar lug	12 psi	83 kpa
18 x 8.50 x 8 turf NHS	22 psi	152 kpa
HYDRAULIC SYSTEM	U.S.	METRIC
Tanden pump capacity @ 3600 rpm
To digging drive	7.8 gpm	29.5 L/min
To ground drive	11.4 gpm	43 L/min
Total	19.2 gpm	72.5 L/min
FLUID CAPACITIES	U.S.	METRIC
Hydraulic reservoir	8 gal	30 L
Fuel tank	2.3 gal	8.7 L
Engine oil	46 oz - 48 oz	1.3 L - 1.4 L

ATTACHMENTS,

RT12

TRAILERS,

RT12

JOB RELATED, RT12

RT10 And RT12 Featured In Rental Equipment Register
The super-compact, super-productive Ditch Witch RT10 and RT12 offer a choice of high-flotation tires or oscillating tracks, exceptional ground speed, and other features that make them ideal trenchers for the small contractor and rental market.

Dig Deeper Into Your Digging Systems
A properly maintained digging system is essential to trencher performance.