Bison MMIB-20, Operator'S Manual

Page: 32 / 72

HAMMERS REPLACEMENT
The hammers need to be changed once they have
worn to such an extent that the vibration increases
and the Mill becomes inefficient The steps to change
the hammers are the following:
1. Turn the Feed Hopper (C). To perform this
operation, pull and turn any of the security bolts (D),
until they are located as shown in the image. Repeat
the operation with the second bolt.
Stand on the opposite side and remove the lock (E).
Slowly press the Feed Hopper from the entry point
until it rests on the tire.
2. Remove the screw and lock nut (A) from the rod
(B) and pull it slowly while you remove the spacers
and hammers. Leave all the removed pieces in an
ordered way so that the assembly operation is not
complicated. Repeat the operation with each rod.
3. Weigh one of the arrows with all its components
(cotter pins, hammer spacers) and use this weight
as a basis. Each of the rods, with their components,
must have the same weight. To achieve this, add
rounds (these must be distributed along the rods).
This is made to avoid rotor vibration.
MAINTENANCE
C
D
E
A
B
27