Note: After the machine has retracted the Vertical Plunger cylinder, the Vertical Plunger Down magnet should be lined up with the Vertical Plunger sensor bar switch, which turns the switch on. This is what the machine is waiting for. The switch is located mid way of the sensor bar at the red mark.

If the Vertical Plunger cylinder is fully retracted,

– Check the air gap distance between the Vertical Plunger reed switch and the magnet. The distance should be a maximum of 3/8 inch (9 mm). If it is within the suggested range then the sensor bar needs to be replaced.

If the Vertical Plunger cylinder is partially retracted,

– Check that a bale or foreign object is not preventing the Vertical Plunger cylinder from retracting.

– Hydraulic power or hydraulic return has been disconnected or shut off from machine. This circuit has a 2-position valve and cannot be partially extended unless power or return has been disconnected or shut off.

If the Vertical Plunger cylinder is still extended,

– Check that hydraulic power is still on to the machine and that return line is still connected.

– Check that a bale or foreign object is not preventing the Vertical Plunger cylinder from retracting.

– Check that the directional valve is not stuck.