SERVICE TRAINING
Service Manual
25
Rock Valve
5. Move the Pivot Lever away from the Cylin-
der Rod, and remove it from the shaft.
6. Remove the Pivot Shaft from the Bearing
Housings.
7. Examine and, if necessary, replace the bear-
ing bushings as described later.
NOTE: The pivot shaft seals should always be
replaced when replacing the Pivot Shaft.
8. Install the Pivot Shaft with the alignment
marking on the top.
9. Assemble the Pivot Lever onto the Pivot
Shaft, making sure the markings are in align-
ment.
IMPORTANT: If the markings are not correctly
aligned, the Cutting Ring will not cover the ports
in the Spectacle Plate.
Alignment
Markings
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