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PA-3500 Line Fastener Installation

Pre-Assembled 3506-SC and 3522-S
Using Hand Squeeze Tool

1. Drill and countersink hole for stud panel preparation.
Panel Preparation Drawing
2. Insert fastener in cup nest and place panel over stud.
Hand Installation Parts Identification Drawing Hand Installation Tool Drawing
3. Ensure panel is firmly against cup shoulder and then squeeze handles to flare cup.
Hand Installation Tool Compressed Drawing
Fastener Tool Part Number
3506-SCxxxA-Z3CT 9916-35-AHT-BB

Click here for the Engineering Drawing
9916-35-AHT Revision C

3522-Sxxx-Z3CT 9916-35-VSHT-BB

Click here for the Engineering Drawing
9916-35-VSHT Revision C

Troubleshooting:

Problem:
Cup neck caves into cup shoulder instead of flaring into countersunk hole (step 2).

Probable Cause:

  1. Vertical travel of panel pressure ring is restricted or its spring pressure is reduced (see Figure 2)
  2. Flaring rod is dull (See figure 1 for sharpening guide).

Problem: 
Flared cup neck is split or uneven.

Probable Cause:
Flaring Rod is dull (See figure 1 for sharpening guide).

Problem:
Cup rotates in panel after flaring (Step 2). Note: Does not affect fastener operation.

Probable Cause:

  1. Incorrect panel hole diameter or countersink angle (Step 1).
  2. Position of cup nest not properly adjusted for panel thickness.
Figure 1: Flaring Rod

Flaring Rod Dimension Drawing

Figure 2:

Installation Tool Component Identification

Pre-Assembled 3506-SC
and 3522-S
Using Power-Driven Tools

1. Drill and countersink hole for stud panel preparation.
Panel Preparation Drawing
2. Insert fastener in block, place panel over stud, ensure cup shoulder is firmly against panel and flare with tool.
Installation Tools Drawing with Parts Identification
3506-SC Stud Assembly Tooling
The 9902-1-162035A-BB is used to "bottom out" the stud in the 3506-SC and press the cup shoulder against the panel while the 9916-1-162035A-BB flares the cup neck against the panel.

Both tools are available as a tool set part number 9920-1620-35-1-BB.

3522-S Stud Assembly Tooling
Power driven tools are not available for installation of this assembly.

Troubleshooting:

Problem:
Cup neck caves into cup shoulder instead of flaring into countersunk hole.

Probable Cause:
Cup shoulder not in firm contact with panel prior to flaring

Problem:
Cup rotates in panel after flaring (Step 2). Note: Does not affect fastener operation.

Probable Cause:

  1. Incorrect panel hole diameter or countersink angle (Step 1).
  2. Insufficient installation pressure.

Problem:
Flared cup neck is split or uneven.

Probable Cause:
Flaring Tool is dull (See Figure 1 for sharpening guide).

Problem:
Cup neck drawn thin in flaring.

Probable Cause:
Excessive installation pressure.

Figure 1: Flaring End
Flaring Rod Dimension Drawing

Fastener Removal
(for 3506-SC and
3522-S stud)

Removal Tool Drawing with Parts Identification
3506-SC or 3522-S Stud Assembly Removal Tooling
The 9916-3-162035-BB is used to push the stud and cup out of the panel while a 9902-2-162035-BB block is used to support the panel.

Click here for the Engineering Drawing
9916-3-162035-BB Revision -