Tri Tool 614RBL Thru 636RBL Clamshells - Manual (Page 28)

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TRI TOOL INC.
92-0480 : Rev. 130916
6.4.4 ALL CLAMSHELL MODELS:
1. Verify that the Clamshell is mounted square and centered to the pipe.
2. Adjust the Jackscrews and Adjustable Bars in opposing pairs to correct
any off center positioning.
3. Once the Clamshell is mounted square and centered to the pipe, tighten
the Adjustable Bars and Jackscrews to 25 ft-lb (34 Nm) to 30 ft-lb (41 Nm)
of torque following the same sequence you used to set them up.
4. If you cannot rotat the Headstock with your hand with the motor(s)
removed, the Jackscrews and/or the Adjustable Bars are too tight. Loosen
them before you power up the Clamshell.
6.4.5 MODEL 642RBL
Tighten Jackscrews 3 and 8 to 10 ft-lb (14 Nm) of torque.
Tighten Jackscrews 5 and 10 to 10 ft-lb (14 Nm) of torque.
Tighten Jackscrews 1 and 6 to 10 ft-lb (14 Nm) of torque.
Tighten Jackscrews 2 and 7 to 10 ft-lb (14 Nm) of torque.
Tighten Jackscrews 4 and 9 to 10 ft-lb (14 Nm) of torque.
Figure: 17. Model 642RBL Jackscrews