Parker FastSeal User manual

FastSeal Assembly Instructions & Troubleshooting
1. Prep - cutting, deburring and cleaning of the tube
2. Pre-set
3. Pre-set inspection
4. Final installation
To start, please select your tubing OD and wall thickness using Table 1.
FastSeal™assembly consists of the
following steps:
1. Prep
For proper tube end preparation see the Assembly and Installation Section
Parker’s Catalog 4300 or watch our techConnect Tube End Prep Video.
Tube Wall Thickness
OD 0.035 0.049 0.065 0.083
1/4" X X
3/8" X X
1/2" X X X
FastSeal connections require pre-setting that can be accomplished by hand with a wrench and is best done with the
assistance of a fixed vice.
Step 1 – Place marking tool on tube
until it bottoms out. Mark around
OD as shown. If marking tool is not
available, use insertion depths shown
in Table 2.
Step 4 – Insert the tube into the
FastSeal nut to the tube depth
mark. Twist and push tube to aid the
insertion. You will feel the tube pop
past the O-ring and bottom out.
Step 2 – Thread FastSeal nut onto
fitting body or mandrel hand tight.
This is best completed with the
assistance of a fixed vice if available.
Step 5 – Mark the nut and body as
shown to assist with the FFFT preset.
Step 3 – Lubricate the end of the tube
with hydraulic oil to help with insertion
in the next step.
Step 6 – Tighten the nut to specified
FFFT of 7-8 flats. You should feel a
perceptible torque rise around 7 flats.
2. Pre-set
A heavy deburr, per Figure 1 of at least 1
mm on the tube is recommended to prevent
damage to the internal O-ring. Ensure tube
is clean and all chips and debris have been
removed from the tube. The deburr dimension
can be checked visually (roughly the
thickness of a coin) or with the depth gauge
on the back end of the marking tool.
CRITICAL STEP:
Figure 1: Recommended deburr
Table 1

FastSeal Assembly Instructions & Troubleshooting
The gap closure is an important visual inspection to make after presetting the FastSeal nut. A “closed gap” can vary
from 0-0.01" (0-0.25mm). This small gap may be caused by spring back of the material and will close when the parts
are tightened at final assembly.
Once the gap is confirmed closed, assemble tube to fitting body and torque
to the values shown in Table 3.
3. Pre-set Inspection
4. Installation
Table 3: Final Assembly Torque
Tube OD Torque – in-lb (Nm)
1/4" 220 (25)
3/8" 360 (40)
1/2" 480 (55)
Table 2: Tube Insertion Depths
Loosen and back o nut to inspect the sleeve gap to ensure it has closed
(see Figure 2).
Tube OD Depth - in (mm)
1/4" 0.62 (16)
3/8" 0.66 (17)
1/2" 0.71 (18)
Gap
No gap
Figure 2: Gap closure inspection reference

Bul. 4303-FS-Assembly 05/2021© 2021 Parker Hannifin Corporation
Parker Hannifin Corporation
Tube Fittings Division
3885 Gateway Blvd
Columbus, OH 43228
phone [phone]
http://www.parker.com/tfd
FastSeal Assembly Instructions & Troubleshooting
Troubleshooting
Unsure if tube is bottomed Use tube marking tool or insertion depths in Table 2 to mark tube prior to insertion and to identify if
you have met appropriate depth when tube is inserted into nut.
Unable or difficult to push
tube into nut
Tube may be oversized or oval. Use tube making gauge to check for correct size and ovality. If tube
does not fit in gauge do not use, select another tube and use gauge to verify the size and ovality
before using.
OR
Ensure nut was not tightened more than hand tight onto fitting or mandrel body before inserting
tube. Do not wrench tighten nut before tube is fully inserted this may cause bite ring to begin to
preset, interfering with tube insertion.
Tube will not push to
marked depth on tube
Avoid O-ring damage, DO NOT FORCE TUBE. Remove tube and ensure tube is properly deburred
to at least 0.040in (1.0 mm) and is cleaned thoroughly. Inspect the tube to ensure it is round, within
dimensional specs (should easily fit in tube marking gauge). Ensure a small amount of oil is applied
to end of tube before inserting, use slight twist when inserting.
DO NOT FORCE, DO NOT USE A HAMMER.
Gap not closed after
presetting
If gap of more than 0.01in (0.25mm) is detected, reassemble to last marked position, tighten nut ½
additional flat, inspect gap for closure.
Leaks at low pressure Internal O-ring may be damaged. Contact Division for assistance.
Leaks at high pressure
Inspect the ferrule and sleeve to confirm there was no gap after presetting. Ensure connection was
tightened to proper Seal-Lok assembly torque per table S14 4300 catalog. Confirm Seal-Lok trap
seal is not damaged or missing. Internal O-ring may be damaged. Contact Division for assistance.
Tube moves in nut
after presetting or final
assembly
Preset was not done correctly. DO NOT USE CONNECTION. Remake tube assembly.
Tube pulls out of nut after
preset
Preset was not done correctly, tube too hard. DO NOT USE CONNECTION. Check tube material,
wall thickness and size. FastSeal nuts are intended for use with low carbon steel seamless or DOM
tube intended for hydraulic applications (reference SAE J524/J525).
Unsure what tubes to use
FastSeal nuts are intended for use with low carbon steel seamless or DOM tube intended for
hydraulic applications (reference SAE J524/J525). Use of the correct tube wall is critical to meet
performance criteria. Recommended tube walls can be found in Table 1.
WARNING
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS AND/OR SYSTEMS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL
INJURY AND PROPERTY DAMAGE.
This document and other information from Parker Hannifin Corporation, its subsidiaries and authorized distributors provide product and/or system options for further investigation
by users having technical expertise. It is important that you analyze all aspects of your application and review the information concerning the product or system in the current prod-
uct catalog. Due to the variety of operating conditions and applications for these products or systems, the user, through its own analysis and testing, is solely responsible for making
the final selection of the products and systems and assuring that all performance, safety and warning requirements of the application are met.
The products described herein, including without limitation, product features, specifications, designs, availability and pricing, are subject to change by Parker Hannifin Corporation
and its subsidiaries at any time without notice.
Offer of Sale
The items described in this document are hereby offered for sale by Parker Hannifin Corporation, its subsidiaries or its authorized distributors. This offer and its acceptance are
governed by the provisions stated in the “Offer of Sale.”