Understand Bale Ramp Regulator (Relief) Valve

The bale ramp uses baler hydraulics with an add-on regulator valve to direct oil flow to a hydraulic cylinder attached to bale ramp.

When operator pulls tractor SCV lever rearward, hydraulic oil from tractor flows through baler tensioning valve, gate lock valve, and base end of gate cylinders, raising gate.

As gate raises (gate cylinders extend), pressure in the gate raising circuit increases. When this pressure reaches the setting of the ramp regulator valve, oil flows to the ramp cylinder, and front of ramp will raise. The gate cylinders must be almost extended before front of ramp raises.

When operator pushes tractor SCV lever forward, gate cylinders retract and return oil from ramp cylinder flows through an internal check valve (within regulator valve), causing ramp to return (cylinder retracts).

Initial adjustment of relief valve (4-1/2 turns in from fully out) gives approximately 8274—10342 kPa (82.74—103.42 bar) (1200—1500 psi). At this setting, gate must be almost fully raised when front of bale ramp raises.

Adjusting the relief valve clockwise will delay the timing of the ramp.

For further information, see ADJUST BALE RAMP (IF EQUIPPED) in this section.