Great Plains 3N-3020 Assembly Instructions - Manual (Page 6)

120-301M 4/8/2004
Great Plains Mfg., Inc.
Veris Drive Option 6
Refer to Figure 11
13. Remove the left wheel from the left-hand con-
tact wheel shaft and slide the shaft to the right
allowing clearance for the speed sensor disc
and sensor bracket. Install the sensor bracket
with one bearing onto the shaft. Install the
speed sensor disc with one lock collar on
each side. Do not tighten lock collars.
14. Remove the forward bolt from the outside
bearing and replace it with a 5/16" x 1 3/4" bolt
and 5/16" nut and tighten. Place the spacer
on the bolt then mount the sensor bracket on
the bolt. Secure bracket with a 5/16" nut.
15. Screw the sensor into the sensor mount until
there is a .030 clearance. Lock sensor in
place with the jam nut. Move the sensor disc
so it aligns with the sensor and secure it in
place with the lock collars. Route the cable
along the contact wheel arm and up to the
controller/motor mount. Repeat steps 13
through 15 to install the Veris sensor and sen-
sor bracket on the right-hand drive.
16. Relocate the seed monitor speed sensor to
the bracket installed on the left-hand drive.
Properly adjust clearance. Tie both cables to
the contact wheel arm, and make sure they
are routed to prevent pinching.
Note: You can not leave the seed monitor speed
sensor on the pivot shaft or the sensor will be
reading motor drive speed instead of field speed.
It is not necessary to move the sensor disc for the
seed monitor. The seed monitor can use the same
sensor disc as the Veris sensor.
Note: After relocating the seed monitor speed
sensor it will be necessary to calibrate the
monitor. Refer to the DICKEY-john® manual
for monitor distance calibration instructions.
Seed Sensor
Speed Sensor
Sensor Disc
Figure 11
Speed Sensor and Bracket
Left-Hand Side
20042
Lock Collars