Assembly Instructions For O-Ring Boss (Orb) Fittings - JLG G5-18A Service Manual

General Information and Specifications
2.8.9 Assembly Instructions for O-Ring Boss
(ORB) Fittings
1. Inspect components to ensure that male and female
port threads are free of rust, splits, dirt, foreign matter,
or burrs.
2. Ensure proper o-ring is installed. If o-ring is missing
install per o-ring Installation (replacement). Refer to
Section 2.8.17, "O-ring Installation (Replacement),", for
.
procedure
NOTICE
Care should be taken when lubricating o-ring. Avoid
adding oil to the threaded connection of the fitting. The
lubrication would cause increased clamping force and
cause fitting damage.
3. Pre-lubricate the o-ring with hydraulic oil.
4. For non-adjustable and plugs, thread the fitting by hand
until contact.
5. For adjustable fittings, refer to Section 2.8.16,
"Adjustable Stud End Assembly, " , for proper assembly.
6. Torque the fitting or nut to value while using the
Double Wrench Method.
a. The table headings identify the straight thread
o-ring port and the type on the other side of the
fitting. The torque will be applied to the straight
thread o-ring port.
b. Torque values are segregated based on the material
configuration of the connection. 'Aluminum/brass
fittings or aluminum/brass mating components'
indicate either the following material
configurations:
• Steel fittings with aluminum or brass mating
components
• Aluminum or brass fittings with steel mating
components
• Aluminum or brass fittings with aluminum or brass
mating components.
7. Inspect to ensure the o-ring is not pinched and the
washer is seated flat on the counter bore of the port.
2-38 G5-18A, 2505