The tug-master/prime mover shall be of a size and weight that will ensure safe transport into and from the vessel from/to the designated place of rest on the terminal. The tug-master/ prime mover must be fitted with a proper towing hook. Enough friction must be obtained before operation continue. (this can be achieved using counterweight)
The driver should test the brakes prior to proceeding up/down the vessel stern ramp and again after the cargo carrier is on the terminal berth/deck.
Transport from terminal to vessel and vessel to terminal shall be at a safe speed. (not to exceed walking speed)
A suitable line of approach over the vessel stern ramp shall be determined prior to loading/discharging, bearing in mind that at no time shall the angle be more than 7 degrees out of the "fore and aft" line of the cargo.
Ramp angle is 4–6 degrees from main deck horizontal line. Higher angle can be approved, subject enough friction is obtained. Approval by Port and Cargo Operation or Marine Operation Management.
If necessary, an additional tug-master can be connected, using wire, to help with pulling during transfer over stern ramp. This is important during rainy/wet conditions.
It must be checked how the two Tug-master-operators synchronize their vehicles movements. The two drivers and the signalman must be in contact through appropriate means.