6
4
CYLINDERS
DISASSEMBLY AND ASSEMBLY
4L0AX00CYLINDERS
2. Remove the piston assembly.
a. Takeoutthesetscrew(1)andremovetheball(2).
• Thesetscrew(1)iscaulkedintwoplaceswitha
punch. Grind off the caulked portions with a hand
drill.
b.Removethepistonassembly(3).
c. Pull out the cushion bearing (4). (Boom cylinder,
swing cylinder)
<Onlyforboomcylinder(ctof)>
c. Removethesnapring(4).
• Whenremoving,lightlytaptheringwithaplastic
hammer while taking care not to damage the pis-
ton rod or cushion bearing.
d.Removethestopper(5)(double-split).
• The stopper (5) can be removed by sliding the
cushionbearing(6)tothepistonrodside.
e. Removethecushionring(6).
f. Removethecushionseal(7).
<Onlyforswingcylinder>
g.Removethecushionbearing(8).
3. Remove the rod cover assembly.