Digi-Star John Deere 455/1520/1530 - Manual (Page 6)

Scale Bracket and Load Cell Mounting Installation
4 John Deere 750/1560/1590-15 ft Grain Drill D3859-US-Rev A
7. Slide the load cells into the sockets on the bottom bracket. Slide the load cells all the way into the
socket. Stop when the load cell cord is up against the socket. (Load cells with 11 ft cable are in the
rear.)
IMPORTANT
: Decal must point
DOWNWARD
. See Detail A.
8. Lower the seed hopper
down slowly and be
careful not to cut the load
cell cord next to the
socket on the bottom
bracket. Lower the
hopper until the top
bracket socket lines up
with the bottom load cells.
Slide the load cells into
the top socket and install
3/8 clevis pin and cotter
pin.
9. Let the jack down. Do not
tighten the bottom bracket
bolts at this time.
10. Repeat steps 2 – 9 for the right side.
IMPORTANT
: For JD455 grain drill, disconnect the drive shaft
bearing holder, drive chain and clutch arm.
11. When both sides are completed, tighten the bolts on the bottom bracket. Tighten the tapered bolts first
and then the standard hex head bolts.
Clutch Arm Updates
To make room for the load cells, the hopper was raised upward by approximately 4”. As a result, the drive line
clutch must be modified. There are two types of updates depending on your grain drill series.