Hyundai 35DS-7 Operation Manual page 192

2) DISASSEMBLY
(1) Hold the cylinder tube in a vice, loosen the
cylinder head and remove it.
Remove the spacer from the cylinder tube
and knock out the bushing. Hook a
wrench in the hole in the retainer at the
piston end and turn. Lever up the edge of
the guide, then turn the guide in again and
the guide can be removed.
CHECK AND INSPECTION
2)
Check item
Clearance between cylinder rod &
bushing
Clearance between piston ring &
tube
3) ASSEMBLY
(1) Soak the piston ring in hydraulic oil at a
temperature of 40 to 50
inside diameter and assemble on the
piston. Install a piston seal.
Bend the edge of the guide and rotate it to
install the guide completely.
Standard size
0.05~0.25
(0.002~0.01)
0.05~0.35
(0.002~0.013)
C , expand the
6-48
Repair limit
0.4
(0.0015)
0.5
(0.02)
D503HS20
mm(in)
Remedy
Replace
bushing
Replace
piston ring
D503HS21