Piston
Maintenance / Reassembly
A5.05. 02.10.01.01
M20
en / 30.09.2010 IB004785 3/3
02
12. If it has been removed, mount the cylinder
liner holder (fig. 3/W2) on the cylinder liner
(2). Only screw the hexagon socket screw
finger (5) tight against the cylinder
crankcase (4).
13. Dismantle the piston insertion device (fig.
1/W4), piston assembly ring (fig. 2/W3) as
well as the piston mounting/extraction
device (fig. 3/W1).
14. Clean the contact surface on the cylinder
liner collar.
15. Insert a new calibrating ring carefully into
the cylinder liner and lower it down to the
recess.
Do not tilt the calibrating ring !
16. Mount the con-rod (02.04.02.nn).
17. Mount the cylinder head (01.11.01.nn).
18. Dismantle the cylinder liner holder (W2).
19. Mount the power unit cover and close the
indicator valves.
20. Dismantle the turning device.
CAUTION
Insert the calibrating ring (1)
only after the piston has been
mounted!