JLG 600SC Service And Maintenance Manual page 172

SECTION 5 - BASIC HYDRAULICS INFORMATION & SCHEMATICS
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).
CARE TO 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 Adjustable Stud End
Assembly for proper assembly.
5-22
6. Torque the fitting or nut to value listed in Table 5-12 thru
Tables 5-17, O-RING BOSS (ORB) while using the Double
Wrench Method.
NOTE: 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.
NOTE: Torque values provided in Table 5-12 thru Table 5-17,
O-RING BOSS (ORB) are segregated based on the material
configuration of the connection.
'ALUMINUM/BRASS FITTINGS OR ALUMINUM/BRASS
MATING COMPONENTS' indicate either the following
material configurations:
a. STEEL fittings with ALUMINUM or BRASS mating
components.
b. ALUMINUM or BRASS fittings with STEEL mating
components.
c. 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.
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