The Notes of Counterweight Box

When the equipment is stopped, the counterweight box must be placed at the bottom stop point of the tower. Only after confirming the traction belt is correctly connected to the rod hanger and the connector of the counterweight box, the counterweight box can run up and down.

(1) The traction belt of the pumping unit is made of steel wire and nylon rubber composite. The connection of the traction belt with sucker rod is splint pin and adjustable nut. And the length of the connect joint can be adjusted.

(2) According to the pump hanging depth and pump type of the downhole pump, the weight of the pump, it can start trial operation by pushing the button in the control system of the operating electrical appliances to move the counterweight box upward. If the electromotor is difficult to drive, gradually adjust the weight until the drive is steady.

(3) After confirming that the top and bottom running of the counterweight box and the position of the top and bottom dead centers of the rod of the sucker rod are correct, the normal working operation can be carried out.

(4) When starting the internal counterweight box up and down after removal of traction force, it should be carried out at a slow speed.