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The equipment used for the installation of cherrylock
rivets is similar to the buck rivet. See figure
13-50. The operation and adjustment of the pulling
heads are preset during manufacture. If further
adjustment should become necessary, the procedures
provided with the head or in the maintenance
manual should be followed. To install a pulling
head of the H615A series, engage the threaded portion
of the pulling head sleeve cap and drawbolt to the
gun head and drawbolt. Then tighten the screws and
the jam nut. The pulling head of an H640A series is
installed by engaging the internal threads of the head
piston rod. Then align the holes in the pulling head
with those on the gun adapter, and tighten one setscrew. To install the nose assembly used on the hydro-shift head equipped gun (fig. 13-5 1), you should proceed as follows: 1. Remove the retainer nut from the hydro-shift head. 2. Place the jaw assembly in the collet (with the spring protruding). 3. Screw the internal threads of the collet onto the drawbolt of the hydro-shift head. 4. Slip the sleeve assembly over the collet. 5. Place the retainer nut over the sleeve assembly and tighten it onto the gun. Cherrylock rivets require a separate pulling head for each diameter and head style. Each series of gun also uses a different set of pulling heads. Refer to the appropriate operating manual for the proper head for each rivet and gun. There are also special use cherrylock pulling heads (fig. 13-52) for use in areas where access is limited.
Figure 13-52.-Specia1 use heads. Since huck and cherrylock rivets are similar, the installation, inspection, and removal procedures are basicaIly the same. |
 
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