9.2. REPLACING THE TOP BEARING
SEAL
The condition of the top bearing seal must be
inspected daily. If the seal has been damaged,
grease appears on the main shaft above the
tightening nut of the mantle (figure 9.2.1). The
failed seal must be replaced during the next
mantle change.
Dismantle the crusher as told in the chapter 8.2
and lift the upper and intermediate frames
together on the stand.
Remove the used seal from the upper frame.
Place a new seal with the groove upwards. If
the weather is cold, first warm up the seal to
room temperature to make the mounting easier
and to avoid the damage of the seal. Bend the
seal to ease mounting (figure 9.2.2).
Replace the liners (if necessary) and assemble
the crusher according to chapter 8.5.
Figure 9.2.1 Replace the top bearing seal if
grease appears on main shaft
Figure 9.2.2 Bend seal to ease mounting
GP200S
Other maintenance
9-2
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