Richiger EA 910, Operator'S Manual

Page: 14 / 76

NOTE:
A pressure limiting valve set to 850 PSI is provided as a safeguard against excessive pressure in the hydraulic circuit.
If this value is exceeded, oil will bypass the hydraulic motor and momentarily bring operation to a standstill.
Fig.3
Fig.4
3) Next, the second lever is used to regulate working
height (i.e., clearance of the sweep augers to the ground)
by means of a hydraulic cylinder. First, this center lever
should be moved to top position in order to raise the
unloader. To adjust for desired clearance, and the object
here is to set the sweep augers as close to the ground as
possible without scraping against it and compromising
bag integrity (see “General indications for efficient
operation”
on page 26), a set of three clamp-on stops of
different size is provided.
Once a combination of stops or a single stop have
been selected and placed around the cylinder rod,
second lever “B”
is pulled down (Fig. 3) so that the
weight of the unloader comes to rest upon the stops (Fig.
4). At this point the lever is returned to its neutral position.
The height of the machine can be modified at any point,
even when the sweep augers are inside the bag.
IMPORTANT:
The unloader should not be raised or lowered with the hydraulic cylinder if the augers are deep within the grain mass,
as this could place undue strain on some components. The correct procedure is to release a few feet of plastic from
the roller by counter rotating it hydraulically, advance forward with tractor to extricate the sweep augers from the
grain, modify machine clearance with the hydraulic cylinder removing or adding stops as necessary, back the machine
once again into the bag to position the augers next to the grain, and reinitiate PTO and roller to continue unloading.
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