JLG E450A, Service And Maintenance Manual, Page: 211 / 480

SECTION 5 - BASIC HYDRAULIC INFORMATION & SCHEMATICS
3121714 5-53
O-ring Installation (Replacement)
Care must be taken when installing O-rings over threads dur-
ing replacement or installation. O-rings could become nicked
or torn. A damaged O-ring could lead to leakage problems.
1. Inspect O-ring for tears or nicks. If any are found replace
O-ring.
2. Ensure proper O-ring to be installed. Many O-rings look
the same but are of different material, different hard-
ness, or are slightly different diameters or widths.
3. Use a thread protector when replacing O-rings on fit-
tings.
4. In ORB; ensure O-ring is properly seated in groove. On
straight threads, ensure O-ring is seated all the way past
the threads prior to installation.
5. Inspect O-ring for any visible nicks or tears. Replace if
found.
Figure 5-14. Adjustable Stud End Assembly