37
4111-0004 — Apr. 2021
© 2021 Systems, LLC
ADJUSTMENTS
Valve Adjustments (Bucher Powerpacks, 60K or 10’ Levelers)
Needle Valve (A)
Controls the lowering speed of the Hoist Cylinder.
Increase down speed by loosening jam nut and
turning thumb wheel counter-clockwise. Decrease
down speed by turning thumb wheel clockwise.
Tighten jam nut after adjustment.
Sequence Valve (B)
Controls the Lip Cylinder. Turning the sequence
valve counter-clockwise causes the lip plate to
extend. If the lip plate does not extend, loosen
jam nut and turn valve counter-clockwise, in small
increments, until lip begins to extend. If the lip
extends too early (before platform reaches full
height), turn the sequence valve clockwise in small
increments until correct performance is achieved.
Tighten jam nut after adjustment.
RV1 Main Relief Valve (C)
Sets system pressure. This valve has a security
lock to prevent adjustment. Do not adjust unless
specifically instructed by Systems, LLC Technical
Services.
All Poweramp EH dock levelers are factory tested,
and should not require additional adjustments in the
field. Consult Systems, LLC Technical Services if
minor adjustments do not result in proper operation.
Whenever valve adjustments are completed, record
the number of turns made to allow an undesirable
adjustment result to be reversed.