JLG 2658E3 ANSI Service Manual - Manual (Page 28)

SECTION 2 - PROCEDURES
2-16 – JLG Lift – 3120762
3. Carefully install the cylinder rod guide on rod section
one, ensuring that the wiper ring and rod seal are
not damaged or dislodged. Push the guide onto the
rod section.
4. Place a new piston ring on the piston and a new o-
ring on the threaded end of cylinder rod section two.
5. Carefully place the piston on the threaded end of
cylinder rod section two, ensuring that the o-ring is
not damaged or dislodged. Push the piston onto the
rod as far as it will go.
6. Attach cylinder rod section one to the threaded end
of cylinder rod section two and assemble.
7. Remove the cylinder rod assembly from the holding
fixture.
8. Position the cylinder barrel in a suitable holding fix-
ture.
EXTREME CARE SHOULD BE TAKEN WHEN INSTALLING THE
CYLINDER ROD, CYLINDER ROD GUIDE, AND PISTON. AVOID
PULLING THE ROD OFF-CENTER, WHICH COULD CAUSE DAM-
AGE TO THE PISTON AND CYLINDER BARREL SURFACES.
9. With the barrel clamped securely, and while ade-
quately supporting the cylinder rod assembly, insert
the piston end of the rod assembly into the cylinder
barrel. Ensure that the piston ring and o-ring are not
damaged or dislodged.
10. Continue pushing the rod into the barrel until the cyl-
inder rod guide can be inserted into the end of the
cylinder barrel.
11. Coat the threads of the cylinder rod guide with Loc-
tite #242 then secure the cylinder rod guide to the
cylinder barrel using a suitable spanner wrench.
12. On the remaining cylinder rod guide place a new
wiper ring, rod seal, o-ring, and back-up ring into the
cylinder rod guide grooves.
Figure 2-16. Steer Cylinder Repair