Art's-Way Manufacturing 6812B, Operator'S Manual

Page: 41 / 72

ART’S-WAY MANUFACTURING COMPANY, INC. Manual No. 590770 (August 2012)
HARVESTER ADJUSTMENTS
35
Rubber Covers
Figure 59. – Header Protective Rubber Covers
The rubber covers located above the paddles, are only
effective when they are centered over the paddle clusters
and routed over the round tube.
The rubber covers are attached to a front tightening tube
and the barrier tube. They must be moved to the holes
on the front tube and slid on the 2x2 inch (5.08 x 5.08
cm) tube.
Paddle Shaft Slip Clutch
There are two paddle shaft slip clutches used on the
header, a jaw or friction type. The jaw type paddle shaft
slip clutch is used with steel rollers. The friction clutch is
used with the polyethylene coated rollers.
Prior to each seasons use, it is recommended to loosen
the slip clutches, allow them to slip, and then tension the
springs to proper setting.
Jaw Slip Clutch
Figure 60. – Jaw Slip Clutch (RH shown)
The paddle shaft is protected by a jaw type slip clutch.
The six (6) springs set the tension of the clutch. The
recommended actual spring length setting is 2.375
inches (6.0325 cm). Make sure all springs are the same
length and the jaws are free from grease. Over tightening
springs may damage the machine
Friction Slip Clutch
Figure 61. – Friction Slip Clutch
Torque for the friction type slip clutch is set by the
spacers. If excessive slippage occurs, the friction disks
must be replaced.
Roller Chain Tensions
Use appropriate idlers to tension roller chains for paddle
shaft, front roller, rear roller, and truck conveyor drive.
Roller chain drives are tensioned by moving idler
sprockets in slots. Check roller chains frequently and
tension approximately 20 force pounds (lbf) (88.96 N)
de
fl ects chain 0.5 to 1.0 inch (1.27 to 2.54 cm).
Also, frequently check sprocket alignment. If more wear
appears on one side of a sprocket, realign the sprockets.
Roller Belt Drive