Tri Tool 614RBL Thru 636RBL Clamshells - Manual (Page 25)

25
Model 614RBL thru 642RBL Clamshells
92-0480 : Rev. 130916
1
4 3
2
Figure: 13. Adjustable Bars
6.3.3 SECURING THE CLAMSHELL
1. Clean the mating surfaces and the contact surface of the Adjustable Bars
and the Jackscrews on each half of the Clamshell.
2. Wipe the mounting surface on the pipe.
3. Check that the Tool Blocks clear the pipe when the Clamshell is mounted.
4. Close the two halves of the Clamshell around the pipe, and keep the
mating surfaces clean.
5. Check that the Alignment Pins have seated the two halves properly.
6. Use the Locking Screws in the Housing and in the Headstock to bolt the
halves of the Clamshell.
7. Tighten the Locking Screws to torque to between 50 ft-lb (68 Nm) to 60
ft-lb (81 Nm).
8. Tighten the Spacer Bars while centering the Clamshell around the
pipe. Wiggle the Clamshell around to position the Adjustable Bars.
If the Clamshell moves or if the Adjustable Bars are not on the pipe,
adjust the Adjustable Bars to ensure a good fit despite variations in the
circumference of the pipe.
9. Tighten Adjustable Bars 1 and 3 to no more than 10 ft-lb (14 Nm) of
torque.
10. Tighten Adjustable Bars 2 and 4 to no more than 10 ft-lb (14 Nm) of
torque.
CAUTION
CAUTION: Do not use tools to separate the Clamshell or force it to
open. This may damage the equipment.