Specifications - 144 RT80 Operator’s Manual
H813 Trencher
*range includes mounting trenching attachment centerline and offset
**with 4’ (1.2-m) roller boom and 70K chain
N Soil discharge reach
short auger 17 in 430 mm
long auger 30 in 760 mm
Attachment weight** 2422 lb 1099 kg
Operation U.S. Metric
Headshaft speed @ 2600 rpm
high speed motor 294 rpm 294 rpm
standard speed motor 235 rpm 235 rpm
low speed motor 185 rpm 185 rpm
Digging chain speed with 12-tooth, 2” (50-mm) pitch headshaft sprocket
high speed motor 595 ft/min 181 m/min
standard speed motor 475 ft/min 145 m/min
low speed motor 374 ft/min 114 m/min
Digging chain speed with 14-tooth, 2” (50-mm) pitch headshaft sprocket
high speed motor 692 ft/min 211 m/min
standard speed motor 553 ft/min 169 m/min
low speed motor 435 ft/min 133 m/min
Digging chain speed with 10-tooth, 3.067” (78-mm) pitch headshaft sprocket
high speed motor 764 ft/min 233 m/min
standard speed motor 611 ft/min 186 m/min
low speed motor 481 ft/min 147 m/min
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