The control system provides for {HEAD ~ prompt and variable adjustment} by the operator of the amount of torque transmitted to {TAIL ~ downstream components} and also provides for the prompt and easy resumption of the trenching operation after an obstruction has been encountered 
The control system provides for { HEAD ~ prompt and variable adjustment } by the operator of the amount of torque transmitted to { TAIL ~ downstream components } and also provides for the prompt and easy resumption of the trenching operation after an obstruction has been encountered
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH