TeeJet LH 765 - Manual (Page 8)

LH 765 G RAIN LOSS MONITOR – O PERATORS MANUAL & F ITTING INSTRUCTION
8 LH A GRO
SETTING UP THE GRAIN LOSS MONITOR
Before putting the monitor into use, it is very important to realise, that not even the
best grain loss monitor can prevent grain from being lost.
The purpose of the monitor is to inform the operator about the amount of grain
being lost.
Therefore the monitor must be adjusted as follows:
1.
Adjust the combine harvester as usual to an acceptable loss (without using
the grain loss monitor).
NOTE! See loss calculation table on page 6
2. After control of the loss, proceed at the same speed.
3. Adjust the reading of the meters, under the driving, so that the needles are
in the middle of the green area. Use a coin or a screwdriver for the adjusting
screws for sieve and straw walker meters.
NOTE! The adjusting screws can only be turned 270 degrees. Do not use too
much force, or the instrument may be damaged.
OBS! Under very favourable harvest conditions it can occur, that almost no loss is
registered on one or both sensors. Under such conditions the reading of the
meters cannot be adjusted into the green area.
The sensitivity adjustment on the straw walker sensor(s) – NORM-MAX-MIN –shall
only be moved from the NORM position under very special conditions. Only in
cases (special years or crops) where adjustment on the instrument is impossible,
the sensor adjustment can be altered as follows:
NORM
= normal sensitivity
MAX = maximum sensitivity (small seeds)
MIN = minimum sensitivity (big seeds)
NOTE! The sieve sensor can be moved in the three slots in the brackets, so that it
is always positioned correct in the loss stream.
To obtain the optimum profit by having a correct adjustment of the grain loss
monitor, it is recommended to repeat the above setting up every time you change
field or crop.
After being correctly adjusted the grain loss monitor informs the operator, not only
about the amount of loss but also whether the capacity of the combine is fully
utilized or not.
It is recommended to control if the reading of the monitor is in accordance with the
actual loss frequently. Especially when harvesting green and moist crops, as this
may cause the sensors to be coated with a layer of dirt.
This layer must be removed as often as required. Hand cleaner is good for this
purpose.