H&S GM 170, Operator'S Manual And Parts List

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OVERLOAD PROTECTION
Main Drive
The GM 170 is furnished with a 5/16 x 1: Grade 5 shear bolt protecting
the transfer auger drive shaft, transmission and mixing auger.
When the
shear bolt fails, the transfer auger and mixing auger will stop turning. Check
the rear chain tightener for proper tension if this bolt shears.
OPERATION (cont.)
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Transfer Auger
The transfer auger shear bolt is accessible only through the mill cover.
This shear bolt protects the auger flighting. The transfer auger will stop
rotating even though the auger/transmission drive shaft will continue to
rotate if this shear bolt fails.
IMPORTANT: Stop mixer operation when either shear bolt fails.
UNPLUGGING
IMPORTANT: When plugging is detected, stop mixer operation.
Mill, Mill Drive and Mixing Tank
Overfeeding of the mill and/or the mill inlet can result in plugging, thus slipping of the miller/blower drive
belt, shearing of either the auger/transmission shear bolt, or the transfer auger shear bolt. Abnormal crop
conditions would include crops with high moisture content or crops that are too light or bulky which would
not feed properly.
Overfeeding
If plugging develops from overfeeding, the tractor will choke down and even stall. To remove the plugging
proceed as follows:
1. Shut the tractor off, remove key, disengage the PTO, detach the PTO and hydraulic hoses
from the tractor.
2. Shut off the feeder attachment.(If applicable)
3. Open the mill screen cover, remove the screen and allow the material to fall down into the
transfer auger or remove material if the transfer auger is overloaded, close mill cover.
4. Disengage the mill/blower drive sheave pin.
5. Start the tractor and engage the PTO at slow speed to convey the material into the Tank.
6. Shut the tractor off and disengage the PTO.
7. Open the mill screen cover, replace the mill screen, close mill cover, engage the mill/blower
drive sheave pin, and restart the tractor and PTO.
8. Bring the mill up to proper running speed and restart the feeder attachment(if applicable). If the
condition of the crop remains the same, reduce the feeding speed to avoid overfeeding.