Ditch Witch RT120 - Manual (Page 203)

Specifications - 202
RT120 Operator’s Manual
H910 Trencher
Operation U.S. Metric
Headshaft speeds @2300 rpm
Ratio low 220 rpm 220 rpm
Ratio standard 270 rpm 270 rpm
Ratio high (not recommended) 362 rpm 362 rpm
Digging chain speeds
Ratio low 628 ft/min 191 m/min
Ratio standard 767 ft/min 234 m/min
Ratio high (not recommended) 1032 ft/min 315 m/min