9.6
REPLACING THE TOP BEARING
The top bearing must be replaced, if it is
damaged or worn. Check also the seal, and
replace it if necessary.
Replace the top bearing when the upper and
intermediate frames are removed, e.g. when
replacing the liners.
Remove the bolts of the cover of top bearing
housing, 4 bolts M20/keyhole 30 mm, and lift
the cover (100 kg / 220 lbs) away.
Remove the grease from upper part of the top
bearing housing (figure 9.6.1).
Remove the top bearing by jack bolts screwing
evenly (figure 9.6.2).
The protective sleeve of the main shaft has to
be replaced, if damaged. See the instructions
in the chapter 9.7.
Install the new top bearing. Heat the housing
to ease the mounting.
Lift the upper and intermediate frames
together and place on lower frame, see chapter
8.5.
Fill the top bearing housing with grease (figure
9.6.1) and grease the bearing. See the
lubricating instructions in chapter 6.2.
Check the condition of the o-ring and cover
and repair or replace if necessary. Lift the
cover on its place and install with bolts (4 pcs)
M20/keyhole 30 mm, tightening torque 382
Nm (39 kpm / 280 ft lbs).
Test operate the crusher for few hours without
load to check, that the crusher is running
properly.
Figure 9.6.1 Remove grease from the top
bearing
Figure 9.6.2 Removing the top bearing
Figure 9.5.5 Be careful not to damage the
dust seal ring, when it slides around the slip
ring
Other maintenance
GP200S
12/99
140548
9-7
