The electric motor 68 interacts with {HEAD ~ the pulley assembly} 64 for positioning the hoisting attachment 66 generally along the longitudinal axis 28 of {TAIL ~ the chamber} 24 and thereby positioning the plunger 56 generally along the longitudinal axis 28 of the chamber 24 
The electric motor 68 interacts with { HEAD ~ the pulley assembly } 64 for positioning the hoisting attachment 66 generally along the longitudinal axis 28 of { TAIL ~ the chamber } 24 and thereby positioning the plunger 56 generally along the longitudinal axis 28 of the chamber 24
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH 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