1
3
5
7
REPAIR INSTRUCTIONS
2
4
6
Replacing the Cover Seals
First see:
Opening the PP 490 (p.
124)
1� There are 3 seals, change one at
the time�
2� Cut the old seal�
3� Use hot-melts to glue the ends of
the new and old seal together�
4� Grease the seal to easier slip
through the tight spaces�
Pull the old seal through the tight
spaces in the channel so the new
one follows�
5� Cut off and remove the old
seal then cut the new seal to an
appropriate length�
6� Use hot-melts to glue the ends
together�
7� Pull the new seal until the glued
joint disappear under the upper
tight space�
11
1 2 5