SERVICE TRAINING
Service Manual
15
Rock Valve
1.5 to 2.0mm
Kidney Plate
Rock
11. Replace the Tension Nut onto the Rock Pivot
Shaft, and tighten it by hand. In this position,
the clearance between the Rock Valve and
the housing should be 1.5 to 2.0 mm.
NOTE: If either the Spectacle Plate or the
Cutting Ring are not replaced at the same
time as the Kidney Seal, the clearance will be
greater and can be adjusted by further tight-
ening of the Tension Nut to the next Setting
Disc hole only.
12. Replace the Keeper Bolt.
13.
IMPORTANT!
At no time should the Rock
Valve be operated without first lubricating
the outlet wear plate. Usually, spraying the
plate with water or oil prior to start-up will
be adequate. Moving the kidney seal against
a dry plate will cause excessive wear to the
seal and will lead to premature failure. If
switching the Rock Valve is necessary for
shop work (adjusting, inspecting, etc.), you
must take the necessary precautions and
ensure that the plate and seal are properly
lubricated.
To Next Page
Loading...