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LIFT STACK VALVE –
The electro-hydraulic
valves which control the height of the detasseler
head lift cylinders are equipped with adjustable
raise and lower orifices controlled by independent
coils (fig 4.3, item 1). Upon initial setup adjust the
orifice screws (fig. 4.3, item 2) as follows, then see
page 29 for more precise adjustment:
HYDRAULIC SYSTEM CONTINUED
26
NOTE:
Over adjustment of raise orifice can
cause excessive working pressure.
FIG 4.3
2
1
IV.
OPERATING INFORMATION
RAISE
– Adjust bolt all the way in and then
back it out 2½ turns.
LOWER
– Adjust bolt all the way in and then
back it out 4 turns.
Electro-Hydraulic Valves