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8
REPLACEMENT OF THE ROLLERS' BEARINGS
1.
2.
4.
5.
7.
D
12
Fit new bearings
3.
1. Place the shaft with the
screw head in the hole on
the bearing tool. Press in the
bearing until the mandrel
comes into contact with the
shaft.
2. Insert the inner and outer
spacer rings.
3. Insert the next ball-
bearing.
4. Press down the entire
6.
bearing unit against the shaf-
t's screw.
5. Grease the sealing washer's
O-ring. Place the sealing washer
on the assembly mandrel and
press the washer by hand
into the bearing housing.
Remove the mandrel.
6. Turn the bearing housing.
Press in the bearing unit until
it bottoms against the sea-
ling washer.
Support bearings
Remove the roller adjuster's
lock-nut and washer and the
bearing arm's screw/shaft.
Sealing collar
Remove the sealing collar by
carefully tapping all around
it.
C
B
A
D
Fit new bearings
1. Place the shaft with the screw
head in the hole on the bearing tool.
Insert a ball-bearing and place the
mandrel on the shaft. Press in the
bearing until the mandrel comes into
contact with the shaft.
2. Insert the inner and outer spacer
rings.
3. Insert the next ball-bearing.
4. Press down the entire bearing unit
against the shaft's screw.
5. Grease the sealing washer's O-ring.
Place the sealing washer on the
assembly mandrel and insert the
bearing housing over it. Press the
washer by hand into the bearing
housing and remove the mandrel.
6. Turn the bearing housing and
place it in the bearing tool. Press in
the bearing unit until it bottoms
against the sealing washer.
7. Grease the parts and fit the circlip,
a new stuffing box, wear ring (facing
!
as in the illustration) and cover was-
her.
the pin for the snap-in fastener (new
version).
Support bearings
Remove the roller adjuster's lock-nut
and washer.
Remove the bearing arm's screw/
shaft and take out the bearing arm.
Sealing collar
Remove the sealing collar by care-
fully tapping all around it with a
small hammer and a larger mandrel.
Remove the seals
– Lift off the cover washer (A).
– Extract the stuffing box (B) using a
sharp tool (the stuffing box has to be
replaced).
– Remove the wear ring (C) from the
shaft.
– Remove the circlip (D).
Fit the spring and stroke limiter. Fit
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