Cleaning and inspection, Steer cylinder assembly -11 – JLG 3246E2 Service Manual User Manual
Page 23
SECTION 2 - PROCEDURES
3120855
– JLG Sizzor –
2-11
EXTREME CARE SHOULD BE TAKEN WHEN REMOVING THE CYL-
INDER ROD, GUIDE, AND PISTON. AVOID PULLING THE ROD
OFF-CENTER, WHICH COULD CAUSE DAMAGE TO THE PISTON
AND CYLINDER BARREL SURFACES.
5.
With the barrel clamped securely, apply pressure to
the rod pulling device and carefully withdraw the
complete rod assembly from the cylinder barrel.
6.
Using a suitable hammer, tap around the outside of
the cylinder barrel and guide to shatter the Loctite.
7.
Using a suitable spanner wrench, carefully remove
the remaining guide from the cylinder barrel.
Remove and discard the wiper ring, rod seal, back-
up ring and o-ring.
8.
Using suitable protection, clamp cylinder rod sec-
tion two in a vise or similar holding fixture.
9.
Carefully remove cylinder rod section one from cyl-
inder rod section two and carefully remove the pis-
ton from the cylinder rod. Remove and discard the
piston seal and o-ring.
10.
Carefully remove the guide from cylinder rod section
one. Remove and discard the o-ring, back-up ring,
rod seal, and wiper ring.
11.
Remove the cylinder rod from the holding fixture.
Cleaning and Inspection
1.
Clean all parts thoroughly in an approved cleaning
solvent.
2.
Inspect the cylinder rod for scoring, tapering, ovality,
or other damage. If necessary, dress rod with
Scotch Brite or equivalent. Replace rod if necessary.
3.
Inspect threaded portion of rod for excessive dam-
age. Dress threads as necessary.
4.
Inspect inner surface of cylinder barrel tube for scor-
ing or other damage. Check inside diameter for
tapering or ovality. Replace if necessary.
5.
Inspect piston surface for damage and scoring and
for distortion. Dress piston surface or replace piston
as necessary.
6.
Inspect seal and o-ring grooves in piston for burrs
and sharp edges. Dress applicable surfaces as nec-
essary.
7.
Inspect cylinder guide inside diameter for scoring or
other damage and for ovality and tapering. Replace
as necessary.
Figure 2-8. Steer Cylinder Assembly