GE TransPort PT900 User Manual page 44

Chapter 2. Installation
2.5.6c Even-Traverse Installations (Spacing>305 mm/12 in.)
For an even-traverse installation with a transducer spacing >305 mm/12 in., the
separate yoke included with the clamp-on fixture is required (see Figure 34 below).
Figure 34: Yoke for Even-Traverse With S>305 mm/12 in.
Important: The clamping fixture must be installed before the yoke (see
"Mounting the PT9 Clamp-On Fixture" on page 9). You must
determine the required transducer spacing before proceeding (see
"Viewing the Transducer Spacing" on page 73).
To install the yoke, complete the following steps:
1. Loosen the yoke screw at least 25 mm/1 in. (all the way for pipes
<50 mm/2 in.) and loosen the J-Hooks all the way (see Figure 25 below).
Figure 35: Loosened Yoke Screw and J-Hooks
28
25 mm/1 in.
minimum
Yoke
Screw
Loosened
Loosened
Completely
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TransPort PT900 User's Manual