Schwing SP ROCK, Инструкция по эксплуатации

Страница: 13 / 20

Service Manual
11
Small Rock Valve
Locking Bolt
25. Reassemble the Rock Valve assembly in the
reverse order that it was disassembled. Slide
the cover back in place.
NOTE: Upon reassembly, generously grease
the Kidney Seal, Kidney Plate, Cutting Ring
and the Spectacle Plate. This is important,
because after you have assembled the Rock
and done some necessary adjustment, you are
going to have to shift the Rock several times
before making the final adjustments.
26. Adjust the Tension Nut, which is tightened
only hand tight. If the Locking Bolt shown
can be installed in the Setting Disc freely,
then do so. If the hole in the Tension Nut
does not align with the thread hole in the Set-
ting Disc, loosen the Tension Nut to the pre-
vious hole, and install the Locking Bolt.
NOTE: Check to make sure that the proper
clearance is obtained between the Rock Valve
and the Cutting Ring and between the Rock
Valve and the Kidney Plate. If the Rock com-
ponents are worn, the dimensions may be
larger that specified.
If the dimensions are too small, loosen the
Adjusting Nut and pry the Rock Valve in the
direction needed. Stroke the unit several
times, and recheck the dimensions. If the
dimensions are correct, reinstall the Tension
Nut and re-adjust.
IMPORTANT! At no time should you operate
the Rock Valve without first lubricating the
outlet wear plate. Spraying the plate with water
or oil will usually be adequate prior to start-up
for pumping. Moving the kidney seal against a
dry plate will cause excessive wear and
premature failure.