Grain Systems Bucket Elevtors, Conveyors, Series II Sweeps PNEG-1128 - Manual (Page 38)

38 PNEG-1128 Chain Loop System without Controls
7. Troubleshooting
1. Chain is slipping on the drive sprocket
a. Check the chain tension and tighten at the inspection corner if necessary.
b. Check for obstructions in the system. The paddles may be catching at joints in the tubing.
c. Check to make sure that the sprockets are centered in the corner housings.
d. Avoid starting the system under load. Let the system run until empty before shutting down. If shut
down does occur while the system is loaded, remove as much grain as possible and turn the
corner sprockets by hand with a pipe wrench to loosen the chain before turning the power
back ON.
2. Grain recycling back to the fill point
a. Check to make sure that the discharge gate is open.
b. Check and clean out the slide gate in the discharge gate.
c. Chain speed may be too fast. The drive corner shaft speed should be 94 RPM.
3. Drive belts are slipping
a. Check the drive motor amperage and make sure that the motor is not overloaded.
b. Tighten belts if slippage occurs when the drive motor is not fully loaded.
4. System is not delivering full capacity
a. Make sure that grain is not over running the discharge gate and returning to the fill-point.
b. Chain speed may be too slow. The drive corner shaft speed should be 94 RPM.
c. High moisture grain will move at a lower capacity than dry grain.
d. Check for obstructions in the inlet hopper.
e. Check to make sure that the chain has not been installed with a twist. (See Page 29.)
5. Paddles breaking
a. Check to make sure that the sprockets are centered in the corner housings.
b. Avoid starting the system under load. Let the system run until empty before shutting down.
If shut down does occur while the system is loaded, remove as much grain as possible and
turn the corner sprockets by hand with a pipe wrench to loosen the chain before turning the power
back ON.
c. Check to make sure that the paddles are fastened securely to the chain brackets.
d. Let the system “break-in” and the tubing become polished before loading to full capacity.
e. If you hear paddles “clicking” at a joint, check for gaps in the tubing. This will require loosening the
bolts in the connecting band to be able to see the tube joint.
6. Chain failure
a. Check to make sure that the master connecting links have been installed correctly.
(See Figure 6M on Page 30.)
b. Check for obstructions in the system.
c. Avoid starting the system under load. Let the system run until empty before shutting down.