4-22
F-1058-0820
OPERATION AND MAINTENANCE
Drive Type Setting
Drive type setting allows the grain drill a wider range of
seeding rates increasing/decreasing the seeding shaft
speed. The drive types may be changed for either the
gauge wheel drive or the contact drive
NOTE
Changing the drive type will affect the seeding rates
of ALL boxes, the main seed, native grass seed, and
small seed boxes.
The Type I is standard speed setting, the Type II is half
speed setting, and Type III is a double speed setting.
Contact Drive
To change the drive type setting, loosen the adjustable
idler sprocket to relieve the slack in the drive chain
. Remove the drive chain. Remove the pins
holding the drive sprockets in place and select the
sprockets for the desired seeding rate. Install the
selected sprockets on the shafts. Place the extra
sprockets on the shafts and reinstall the pins. Note: if
using the 12-tooth drive sprocket, move the 24-tooth
sprocket to the other side of the contact drive wheel for
drive chain clearance. Route the drive chain as shown
and readjust the idler sprocket to hold in place.
Figure 4-23: Contact Drive
Gauge Wheel Drive
Remove the 1/4x2 bolt through the hex shaft coupler next
to the upper gauge wheel sprockets
Slide the coupler and short drive shaft through the native
grass drive towards the middle of the drill. Loosen the
adjustable idler and remove the drive chain. Remove the
pin through the lower hex drive shaft if changing the
lower sprocket. Select the sprockets required for the
desired seeding rate and install on the upper and lower
hex shafts. Place the extra sprockets on the upper shaft.
Route the drive chain as shown and readjust the idler
sprocket to hold in place. Reinstall the lower hex shaft pin
and the 1/4x2 bolt through the shaft coupler to secure the
sprockets.
Figure 4-24: Gauge Wheel Drive
DRIVE CHAIN
PIN
PIN
ADJUSTABLE
IDLER SPROCKET
DRIVE CHAIN
LOWER HEX
SHAFT PIN
ADJUSTABLE
IDLER SPROCKET
1/4 X 2 BOLT
HEX SHAFT
COUPLER
