GE PT878GC 用户手册

April 2004

Installing the First Bracket with a Chain or Strap

The following steps describe how to install the PI fixture with a 
supplied chain or strap.

1. Carefully wrap the chain or strap around the pipe, taking care 

not to twist it.

2. Loosen the wing nuts up to the end of the J-hooks. Then hook 

the chain into the tightest links and loosely hand tighten the 
wing nuts. If you are using a strap, insert the J-hook into the 
smaller round hole on the strap.

3. Line up one edge of the CFG-PI holder bracket with the origin 

scribe line and fully tighten the chain or strap (see Figures 
3-17 and 3-18 below).

4. Install the transducer dummy block to verify the 

circumferential and axial location. Center the indicator line on 
the block to line up with the scribed mark (see Figure 3-18 
below).

5. Loosen the transducer hold-down screw and tighten the J-

hooks on the clamping fixture. Be sure the bracket has not 
moved from its position.