O-Ring Installation (Replacement) - JLG 400S Service And Maintenance Manual

SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS

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.
5-48
Figure 5-13. Adjustable Stud End Assembly
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.
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