J&M 1325-20T - Manual (Page 15)

13
ADJUSTING THE SLIP CLUTCH
ADJUSTING THE LOWER FLIGHTING AND HANGER BUSHING ASSEMBLY
MAKE SURE THAT ALL POWER IS SHUT OFF BEFORE ADJUSTING THE FLIGHTING ASSEMBLY.
If the drive-dog and hanger assembly are becoming excessively hot during unloading, the lower flighting
and/or hanger may need adjusting. The hanger bushing assembly has elongated holes where it attaches
to the outer tube assembly. Loosen the two 3/8” bolts on the hanger bushing assembly. Adjust the hanger
either up or down and locate in center between flighting center and drive-dog. Retighten the bolts. (Make
certain that the flighting center and drive-dog does not rub the hanger bushing assembly causing them to
become hot.)
If the hanger can no longer be adjusted by moving it up or down on the elongated holes, both the hanger
bushing assembly and the lower flighting will have to be removed. After removing them from the tube
assembly, place a shim (between 1/8” - 3/16” thick) where the gearbox and the spline coupler (welded to
lower flighting) meet. Replace the lower flighting and reattach the hanger to the tube assembly. Readjust
the hanger assembly. (NOTE: The bottom of the lower flighting is not attached to the gearbox with any bolts
or set screws but may be “froze” fast. Be careful when removing the lower flighting from the gearbox.) For
easier removal of the lower flighting, keep the gearbox at the bottom intact, remove the 2 3/8” bolts from the
hanger bushing assembly and pull the lower flighting off of the gearbox.
After adjusting the lower flighting, move the upper auger to the unload position and check the upper flighting
for readjustment.
IMPORTANT: If the machine has never been used or has not been operated for (1) season, the
following is recommended.
After the first hour of operation, the slip-disc clutch should be checked for overheating. After this first check,
the slip-disc clutch should be checked weekly or anytime there is excessive slippage of the friction discs.
The slip-disc clutch should be checked for moisture, which could cause corrosion on the drive plates. If
the grain cart has been idle for an extended period of time, or in wet weather, check to make sure that the
friction lining plates are not rusted or corroded together. The friction lining plates are 1/8” thick new. They
should be replaced after 1/32” of wear to ensure proper operation.
When the grain cart has been idle for an extended period of time, it is important to check the slip-disc clutch
to make sure that it will slip when an obstacle or load heavier than the torque setting is encountered. Use
the following procedure to make certain that the slip-disc clutch will slip and give the overload protection
required.
1)
2)
3)
4)
5)
6)
7)
Loosen nut on springs until the springs can rotate freely, yet remain secure on the bolts.
Place a mark on the outer plates of the slip-disc clutch.
Securely attach the PTO and the grain cart to the tractor and start the tractor.
Engage the PTO for several seconds then quickly disengage it.
Turn the tractor off.
The friction lining plates should have been broken loose or “slipped”. Check the marks placed on the
outer plates of the slip-disc clutch.
Adjust the nuts on the springs to set the spring compression height to 1.27”