SHEREX® ~ 400 Riverwalk Pkwy, Suite 600 Tonawanda, NY, 14150 ~ 866-4SHEREX ~ www.sherex.com
8
T
OOL SETUP
Once the tool has been set up with the proper head set for the rivet nut thread size, it is now
time to set up the tool for installing blind rivet nuts. At this point you must determine the proper
installation method for installing the rivet nuts. Feel free to call Sherex to discuss your application and
proper installation method, but included below is a brief outline of considerations for tool set up.
This tool utilizes both pull to force and pull to distance installation methods and these two
methods can be used simultaneously as well. The two methods are described in detail in the
following section of the manual but here is a brief summary:
Pull to Force (Pressure):
The tool is set to a specified pull force and the tool will pull to this
force when the trigger is actuated. Once the tool reaches the specified pull force, the tool will engage
the auto-reverse function and thread out of the rivet nut.
Pull to Distance (Stroke):
The stop block is set on the tool so that it pulls to a specific distance
(At MAX Force). Once the tool pulls to the specified distance the tool will engage the auto-reverse
and thread out of the rivet nut.
Sherex recommends the Pull to Force installation method for applications involving steel,
aluminum, stainless base materials. The tool will compensate for any variation in material thickness
and ensure the part is pulled to the proper force. In this case, typically the pull to distance stop block
is positioned at the MAX distance of the tool. However, in some applications you may want to
position the stop block so that the tool will pull the lesser of Pull to Force set up, or the stop block
distance setting. An example of this is if you are installing steel and aluminum rivet nuts and you want
to be sure that the Pull Force setting for the steel rivet nuts does not strip the threads of the aluminum
rivet nuts. By setting to the tool up this way, you are able to install both rivet nuts without adjustment.
Sherex recommends Pull to Distance installation method for applications going into soft
materials like composites. In this situation the Pull to Distance method ensures that the base material
is not crushed during the installation process.
Choosing between these two installation methods (or a combination) is critical for proper rivet
nut installation. Please contact Sherex for support.
G
ENERAL SETTING
Air Pressure Gage
for Box
Hydro-Pneumatic
Booster
Pneumatic Switches
Hydraulic Fluid Reserve
Air Pressure
Regulator into Box
Force Adjustment
Air Inlet
(1)
