Hyundai HDF 50-7S, Service Manual

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6-29
DISASSEMBLY
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)
2)
(1)
ASSEMBLY
Soak the piston ring in hydraulic oil at a
temperature of 40 to 50 C , expand the
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.
3)
(1)
Check item Standard size Remedy Repair limit
Clearance between cylinder rod &
bushing
Clearance between piston ring &
tube
0.05~0.25
(0.002~0.01)
0.05~0.35
(0.002~0.013)
0.4
(0.0015)
0.5
(0.02)
Replace
bushing
Replace
piston ring
D503HS20
D503HS21
mm(in)
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