Avery Dennison ALS 204 Service And Installation Manual page 211

9 R
EPAIR
9.5 F
EED UNIT
Replacing ball bearings
Fold pressure roller out of working position.

Screw the knurled thumbscrew [284A] all of the way

out and remove the pressure roller along with clam-
ping ring.
Remove setscrews [285G], springs [285F] and

pressure pins [285E].
Pull out the axle [285D], remove steel roller [285C]

and washer discs [285A].
Soften up the adhesive bond on both ball bearings

[285B] using a hot air blower.
Remove the ball bearings.

Remove adhesive residues from the bearing seats.

Fixing the ball bearings with adhesive:
Glue the ball bearings into the bearing seats

with Loctite 648.
Follow the adhesive manufacturer's instruc-

tions for use.
Glue the ball bearings flush with the end surfaces of

the steel roller.
Allow the adhesive bond to harden fully.

Place steel roller with washer discs in pressure roller

assembly and slide in the axle [285D], with the con-
tact surfaces [285arrows] for the pressure pins fa-
cing backwards.
Grease pressure pins, springs and setscrews and

install them in the pressure roller. Ensure that the
pressure pins mate with the contact surfaces on the
axle [286arrow].
Screw the setscrews inside the pressure roller to a

depth as described in the next chapter [286A]
Adjusting the pressure force
To set the standard initial tension of the springs, turn in
both setscrews [286A] on the rear side of the pressure
roller:
Clockwise to the same degree, to increase pressure

force.
Anticlockwise to the same degree, to decrease

pressure force.
Machine Screw-in depth setscrews
ALS 20X 2 mm
ALS 256 4 mm
A
[284] Removing pressure roller
[285] Disassembling pressure roller
A
[286] Adjusting the pressure force
211
ALS
20X
256