Page 414 - 4300 Catalog Cover.pdf

4300 Catalog Assembly / Installation
Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
http://www.parker.com/tfd
T4
Counterbores and taps used to machine the various parallel
thread ports can be found in section S.
For assembly purposes, there are two main categories of
parallel port ends: adjustable and non-adjustable. Adjustable
port ends are commonly found on shaped fittings to allow for
proper orientation of the fitting. Besides the elastomeric seal,
adjustable port ends are assembled with a locknut and a back-
up washer as shown in Fig. T6. Non-adjustable port ends are
found on straight fittings.
Thegeneral assemblyprocedure for all adjustableparallel thread
port ends is the same. Likewise, the assembly procedure is the
same for all non-adjustable parallel thread port ends.
Adjustable Port End Assembly
1. Inspect components to ensure that male and female port
threads and sealing surfaces are free of burrs, nicks and
scratches, or any foreign material.
2. If O-ring or seal is not pre-installed to fitting male port end,
install proper size O-ring or seal, taking care not to dam-
age it.
3. Lubricate O-ring with light coat of system fluid or a compat-
ible lubricant to help the O-ring slide smoothly
into the port and avoid damage.
4. Back off lock nut as far as possible.
Make sure back-up washer is not loose
and is pushed up as far as possible.
5. Screw fitting into port until the back-up
washer or the retaining ring contacts
face of the port. Light wrenching may
be necessary. Over tightening may
damage washer.
(This potential damage
was eliminated with
Parker’s Robust Port)
Locknut
Back-up Washer
O-Ring
Left-hand Threads
6. To align the tube end of the
fitting to accept incoming tube
or hose assembly, unscrew the
fitting by the required amount, but
not more than one full turn.
7. Using two wrenches, hold
fitting in desired position and
tighten locknut to the proper torque
value from the appropriate table
located o n pages T5 - T6.
8. Inspect to ensure that
O-ring is not pinched
and that washer is
seated flat on face of port.
Non-adjustable Port End Assembly
1. Inspect components to ensure that male and female port
threads and sealing surfaces are free of burrs, nicks, and
scratches, or any foreign material.
2. If O-ring or seal is not pre-installed to fitting male port end,
install proper size O-ring or seal, taking care not to dam-
age it.
3. Lubricate O-ring with light coating of system fluid or a
compatible lubricant to help the O-ring slide past the port
entrance corner and avoid damaging it. “ED” seal does not
need lubrication.
4. Screw fitting into port and tighten to proper torque from the
appropriate table located o n pages T5 - T6.
Locknut
Completely
Backed-Off
Step 4
Step 5
Step 6
Fig. T6 – Adjustable Port End Assembly
Steps 7 and 8
Tighten Locknut
with Torque Wrench
Port End Assembly
Fig. T7 — Non-Adjustable Port End Assembly