CiDRA SONARtrac HD GVF-100 - Manual (Page 26)

Copyright © 2006 CiDRA Corporation Page 7-8
20675-02 Rev 01
Further tightening of the sensor band screws is made while using the
sensor band spacer gauge (shown below) furnished with the sensor
band. The spacer gauge is used to set the compression on the
Belleville washers referred to above. Refer to Table 4 for proper
spacer gauge selection.
Figure 10 Sensor Band Spacer Tool
Using the sensor band screw tightening sequence shown in Figure 8,
insert the sensor band spacer gauge over the Belleville washers on
the middle sensor screw assembly and tighten it such that it is snug
but the spacer gauge can still be removed. The following figure
illustrates use of the sensor band screw spacer gauge.
Figure 11 Sensor Band Spacing Tool Installed on Sensor Screw
Note: Ensure the spacer tool is perpendicular to the attachment rail to
ensure proper tightness. Remove the tool, move to the next sensor
screw, and repeat the tightening on each of the sensor screws.
Important: Tighten each screw once only. Do not retighten each
screw using the gauge.
Sensor screw spacing tool
installed on sensor screw
Sensor screw with
Belleville washers
compressed (typ)
Side view