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Selecting the appropriate Combs and Cutters
Shearing combs and cutters play a major part in shearing. It is then very important to select the appropriate comb for the job. When
selecting the right comb it is important to consider the shape, bevel and width of the comb (Illustration 3).
Under normal shearing conditions:
1. Short Bevel Comb: The short bevel comb is primarily used when shearing is at its best and the sheep are in top
condition.
2. Medium Bevel Comb: The medium bevel comb is used for the majority of crossbred shearing and is suitable for
most types of wool.
3. Long Bevel Comb: The long bevel comb is particularly suited suited to fine woolled sheep and is used when the
wool is sticky or for early shearing.
Setting a comb and cutter
Place a comb and cutter on the handpiece. Slightly tighten the comb srews until you can just move the comb on the comb bed.
Ensure the centre teeth of the cutter are at least 1.5 to 2.00mm below the scallop of the comb. Tighten up the comb screw driver
provided (Illustration 4).
Pair of the chicken feet
Ensure that each of the chicken feet swivel freely in the fork. Remove the chicken feet once a week. Clean the chicken feet and the
front of the fork body thoroughly. Turn the chicken feet on their side and pull out by hand or by pliers. Always apply a small amount
of grease into the setting holes on the fork body when replacing the chicken feet. When the cone and tip on the outer half of the
chicken feet is worn out, it must be replaced as soon as possible.
Tension pressure
Each end of the tension pin is different in size. Ensure the larger end fits into the tension pin cup and the smaller end into the ten-
sion pin sleeve. Increase the pressure on the comb and cutter by turning the tension nut. If the tension nut is tightened excessively
the handpiece body and combs and cutters will overheat very quickly. This will also cause the comb and cutter to not cut correctly. If
the handpiece is not cutting then replace the comb and cutter with a freshly ground comb and cutter. If adequate tension cannot be
applied then consider replacing the worn tension pin, tension pin cup and tension sleeve.
Screw
The chicken feet retaining spring is fixed to the fork body by a screw and must not be loose.
Remove and replace the fork body assembly and the roller
Method of removal:
The fork body assembly can be removed without removing the center post. First unscrew the tension nut, then remove the tension
pin and tension sleeve. Remove the safety screw behind the tension nut and remove the fork body with the roller attached.
Illustration 3
Illustration 4
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