Meyer 8720 - Manual (Page 19)

SPINNER MATERIAL GUIDES
Regularly inspect and adjust two spinner material
guides located at both the left rear and right rear of the
spreader. Create a 1/8-3/8” clearance between material
guides and spinner teeth, figure 12. Maintain the recom-
mended clearances for maximum spreading pattern.
Adjust to prevent excessive manure build-up on mate-
rial guide inner surfaces. Adjust to prevent manure
chunks or foreign object lodging between material
guides and spinner teeth.
NOTE: Excessive lodging can cause premature spinner
tooth wear, “bent-over” or even breakage.
SHEAR ARM MATERIAL GUIDE
ADJUSTMENT
Adjustment for the 1/8-3/8” clearance of each material
guide to spinner tooth is made by loosening the jam nut
on the linkage arm and turning the linkage arm to either
move the guide in closer or out farther from the spinner
teeth. After adjustment has been made for the 1/8-3/8”
clearance retighten the jam nut to hold the material
guide in place. Once recommended clearance is ob-
tained turn spinners over by hand in the direction by
which the spreader would turn to check clearance. Do
not turn in the opposite direction as front chain tightener
damage could occur. If foreign objects enter the spinner
area the front pivot bolt on the shear arm is designed to
shear. The extension spring will pull the material guide
away from the spinner until the shear bolt is replaced.
The ½-13 x 3 ½” grade 5 replacement machine bolts are
stored under the rear shield. For replacement install
with ½” flat washer on top of shear eye and on bottom of
block and tighten nylon locknut firmly.
Model 8720/8865 -19-
FIGURE 12. MATERIAL GUIDE
CLEARANCE
1/8-3/8”
FIGURE 13. SIDE SHAFT CHAIN DRIVE
SIDE LINE SHAFT
DRIVE SPROCKET
PTO INPUT
SPRING LOADED
ADJUSTER
IDLER NYLON
ROLLER
The side shaft chain drive (PTO input shaft to the side
line shaft drive sprocket, figure 13) is automatically
tensioned by a spring-loaded idler nylon roller. The
extension spring should extend 2" from its neutral 5"
total length.
Manual adjustment for the automatic tensioning idler,
nylon roller assembly is located at the right rear of the
spreader’s front bearing mounting plate.