TRI TOOL INC.
92-1739 Rev. 220506
30
Separate the Clamshell
The locking screws are retained in the housing. You cannot remove them.
1. Unbolt the two Locking Screws on the Housing. Refer to Fig. 13.
2. Unbolt the two Locking Screws on the Headstock.
3.
Hold the Clamshell at 10 o’clock and 2 o’clock positions.
4. Pull the Clamshell halves apart as evenly and as straight as you can.
5.
If the Clamshell does not easily separate at the split line do the following:
a. Be sure that the Headstock is aligned with the split line.
b. Be sure that the split line assembly bolts are loose.
CAUTION
CAUTION: Do not use tools to separate the clamshell or force it to open. This may
damage the equipment.
Secure the Clamshell
1.
Clean the mating surfaces and the contact surface of the Adjustable Bars,
and the Jackscrews on each half of the Clamshell, refer to Fig. 14.
2. Wipe the mounting surface on the pipe.
3. Be sure 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.
Make sure that the Alignment Pins seated the two halves correctly.
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.