Ditch Witch RT120 Q - Manual (Page 195)

Specifications - 194
RT120Q Operator’s Manual
H911 Trencher
Operation U.S. Metric
Headshaft speeds with RT120Q at 2300 engine rpm
Ratio low 152 rpm 152 rpm
Ratio standard 203 rpm 203 rpm
Ratio high (not recommended) 247 rpm 247 rpm
Digging chain speeds with RT120Q
Ratio low 428 ft/min 130 m/min
Ratio standard 572 ft/min 174 m/min
Ratio high (not recommended) 694 ft/min 212 m/min