Mercedes-Benz 603 Service Manual page 256

3 Attach support bridge 601 589 02 59 00 for
lever press on cylinder head.
4 Press valve spring retainers downwards with
lever press 601 589 02 61 00.
5 Remove valve totters with magnetic lifter
116 589 06 63 00.
6 Remove valve springs and valve spring
retainers.
Installation note
Install valve springs with the color markings
downwards.
7 Check valve springs (05-260).
8 Replace valve stem seals (05-270).
9 Installation takes place in the reverse
sequence.
05 10 - 2506
EXIT