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

Parker Hanniﬁn Corporation

Tube Fittings Division

3885 Gateway Blvd

Columbus, OH 43228

phone 614 279 7070

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.

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.”

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