Great Plains 2525P Operator Manual - Manual (Page 66)

2525P and 2520P
118-915M 4/23/2010
64
Finger Set Installation Instructions
Installation Steps
Great Plains recommends having the meter service per-
formed by a recognized professional repair facility, such
as a certified Meter Max representative.
If you choose to service them yourself follow these proce-
dures when installing the finger-sets.
Refer to Figure 89
1. Be sure the belt is oriented properly as shown.
2. Slide the finger set over the shaft and rotate clock-
wise until it properly seats against the backing plate
(you will hear a click).
3. Firmly press the finger set against the backing plate
while tightening the nut.
4. Tighten the nut until contact is made between the nut
and the finger set. Turn 1/4 to 1/2 (1/24 to 1/12 of a
turn) flat (a flat is one of the six sides of the nut) after
contact is made. This equals about four inch pounds
of torque on the nut.
5. Place the slotted nut cover on and carefully align the
slotted nut cover with the shaft hole and insert the
cotter pin.
6. Rotate the finger set clockwise and make sure the fin-
gers open and close properly. Fingers should be
closed at the 8:00 to 2:00 position (exit hole) and
open at the 2:00 to 8:00 position.
Annual Maintenance
Finger sets should be inspected on an annual basis. After
cleaning, carefully inspect the fingers and springs for
wear or other abnormalities that may develop. Excessive
wear may disrupt singulation performance.
Precautions
1.
Make sure the finger set is properly torqued against
the backing plate. Improperly torqued finger sets may
disrupt seed singulation.
2. Avoid seed treatments, additives and other chemicals
when possible. They can cause meter performance
problems, premature wear to meter parts and may
cause un-desired chemical reaction or deterioration
to the finger sets. Always use Precision Planting or
Great Plains graphite when using seed treatments,
refer to “Graphite Powder,” on page 22. Graphite from
other sources may cause premature wear.
3. Always pay attention to your seed monitor, operating
manual and monitor the amount of seed you are
planting compared to your expectations. Always in-
vestigate Abnormalities.
Figure 89
Finger Meter
22507