Doosan DX225LC-3 Shop Manual page 362

12. Use a dull, rounded tip tool to pry off O-ring (13) and
backup ring (14).
13. Find a screwdriver with an appropriate width tip to facilitate
removal of slipper seal (18), wear ring (19) and slide ring
(20) from piston (17).
14. Remove O-ring (21) and backup ring (22) from cylinder
head.
15. During disassembly of cylinder head, be careful not to
damage buffer seal (8) and U-packing (9).
Cylinders
Page 34
Figure 24
Figure 25
Figure 26
Figure 27
HAOF37OL
HAOF38OS
HAOF39OL
SP002497