Service Manual
5
Small Rock Valve
Rotate the Cutting Ring 90˚ clockwise
Securing Bolts
B
Inlet Housing Lining
Cutting Ring
Rock Valve
Pressure Spring
Check for the gap at several points along the
Cutting Ring circumference, and always turn the
Cutting Ring in the same direction.
It is only necessary to loosen the Securing Bolts
of the Housing Cover approximately 10mm
(.3937”) in order to release the Pressure Spring
and turn the Cutting Ring.
3. Check the distance between the Cutting Ring
and the Rock after each turn of the Cutting
Ring. If it exceeds 8mm (.315”), the preten-
sion of the Pressure Spring is not enough to
correctly press the worn cutting ring up
against the Spectacle Plate. In this case, the
Cutting Ring has to be replaced
Summary of Contents for SP ROCK
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