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Model 604SB thru 612SB Clamshells
92-1197 Rev. 200519
45
Problem: The Clamshell is slipping on the pipe or tube.
(Fixed Pads)
The Clamping Pads are not in full contact with the pipe or tube.
The clamping pressure is too light.
Scale and/or other foreign material is present on the pipe or tube.
Weld seams, swelling, or bumps under the Clamping Pads prevent full
contact.
Dull Tool Bits are causing extra force in the axial and/or radial direction.
The pipe or tube wall is too thin which allows the tube wall to flex and the
machine to move.
Problem: There is a loss of hydraulic power
The hydraulic supply pressure is too low.
The hydraulic filter is plugged.
The hydraulic line size is insufficient.
The hydraulic line is too long.
Problem: The tool bit will not reach the work
Incorrect tool blocks are installed for the size of the pipe or tube being
worked on.
Incorrect tool bit is installed.
Problem: The Clamshell will not center on the pipe or tube.
(Fixed Pads)
Incorrect Clamping Pad Set is installed.
Scale and/or foreign material is present on the pipe or tube.
One of the Clamping Pads is on a seam.
The pipe or tube has an out-of –round condition or is oversized or
undersized.