Depth Of The Marking Line; Operation Of The Pre-Emergence Marker - LEMKEN Saphir 7-B AutoLoad Operating Instructions Manual

16.4 Depth of the marking line

By means of turning the the spring (F) the depth of the marking line can be
pre-adjusted:
Turning the spring clockwise => deeper marking line
Turning the spring anti-clockwise => lower marking line
By means of the screw (SS) the brake disc (BS) will be pressed against the
spring that it cannot adjust unintentionally, but the spring can be adjusted ma-
nually.

16.5 Operation of the pre-emergence marker

a) In connection with track markers
Via the spool valve of the track
marker the hollow discs (HS) will
be lifted and always than lowered,
when marking lines should be ma-
de. This will be controlled via the
on-board computer, which swit-
ches if required the magnet valve
(HV) for the oil supply of the hy-
draulic rams (HZ).
b) without track marker
If the pre-emergence marker is used without track markers, the hydraulic
rams (HZ) must be connected to a single acting spool valve with pressureless
return pipe or a double acting spool valve in floating position. (During work the
double acting spool valve must always be set on floating position.).
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