Tri Tool 642SB Clamshell Air and Hydraulic - Manual (Page 19)

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Model 642SB Low Profile Clamshell
92-0612 Rev. 131230
OPERATION
Read the operation instructions carefully before attempting to operate the Model
642SB Low Profile Clamshell.
Configure the Clamshell for the specific task required.
Mount the Tool Blocks and Tripper Bracket onto the Clamshell.
Select and install the proper Clamping Pad Set into the Clamshell. Refer to the
section on ‘Clamping Pad Sets’ later in the booklet.
Do not install the Tool Bits until the Clamshell has been installed on the pipe.
INSTALLATION OF THE CLAMSHELL ON AN IN-LINE PIPE
Separate the two halves of the Clamshell.
Locking Screw Locations
Rotate the Headstock until the split-lines of the Headstock match the split-lines of
the Housing.
Fasten the four Lock Blocks from the Headstock to the Thrust Plate on each half of
the Clamshell.
Unbolt the two halves of the Clamshell.
Two Locking Screws are located on the Housing and two more on the Headstock.
Refer to ‘Locking Screw locations’.