Digi-Star John Deere 455/1520/1530 - Manual (Page 7)

Scale Bracket and Load Cell Mounting Installation
D3859-US-Rev A John Deere 750/1560/1590-15 ft Grain Drill 5
JD455 Clutch Arm Updates
1. Mount the drive shaft bearing
holder provided with the kit.
Weld the bottom bracket to
the drill frame when the shaft
looks straight.
2. Install the chain tightener
provided with the kit (you may
need to shorten the chain).
3. Install the new clutch drive
arm. Drill a hole in the arm
so the clutch is disengaged
when the drill is up and
engaged when the drill is
down. The length extended
on the clutch arm is the same
distance that the seed bin
was raised, because of the
scale system.
JD1520/1530 Clutch Arm Updates
1. Switch space (number 1) with gear (number 2).
2. Remove bolts on
end bearing
holder and slide
main shaft
(number 3) away
from tank.
3. Remove sprocket
and role pin, then
slide the bearing
on first.
4. Install bearing
holder close to
the inside of the
sprocket.
5. Line up the chain
so the sprockets
will be straight
with each other.
Make sure the
shaft does not
touch the tank.
6. A hole will have to be drilled in the gusset on the frame to get the U-bolt to go in (number 4).