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5.5
If necessary rotate all the Jackscrews (Chart 8 item A-3) in the Jackbars until they clear the bottom of the Surface
“A”.
5.6
Place the Chain Lock Pin (Chart 10 item B-4) over the Universal Jackbar (Chart 10 item B-5) so it does not become
trapped under the Jackbar when placing the Chain Clamp on the pipe.
Note:
For the 10 – 36” and 10 – 54” Chain Clamps, place the Safety Pin (Chart 10 item B-10) and Chain Lock (Chart
10 item B4) over the Universal Jackbar so it does not become trapped under the Jackbar when placing the Chain
Clamp on the pipe.
5.7
Grasp the Main Block (Chart 10) and the Fine Adjustment Assembly (Chart 11) and wrap clamp around the pipe,
making sure all Jackscrews (Chart 8 item A-3) of the Jackbar (Chart 8) are on the pipe surface facing the area to be
welded.
Note:
Universal Chain Clamp – Make sure the Brass Knurled Head Screw is facing away from the weld joint.
5.8
Place the ears of the Fine Adjustment Assembly (Chart 11) in the notch portion of
the Main Block (Chart 10) as shown in the picture at right.
5.9
Place the Chain Lock Pin (Chart 10 item B-4) into the Main Block (Chart 10) over the
Chain (Chart 14).
5.10
Grasp the Main Block (Chart 10) with your Right hand and the end of the Chain
(Chart 15) with your left hand. Pull Chain through the Main Block until all Jackbars
are as close to the pipe as possible.
5.11
Rotate the Crank Handle (Chart 11 item C-3) of the Fine Adjustment Assembly
(Chart 11) clockwise until the Chain Clamp is tight on the pipe.
5.12
Rotate the Jackscrews (Chart 8 item A3 & Chart 10 item B6) in the Jackbars (Chart 8 item A1) and Main Block
clockwise until they make contact with the pipe
5.13
Loosen the Jackscrew (Chart 10 item B6) in the Main Block on the side of the pipe that is to receive the pipe or
fitting one full turn. This distance may vary depending on the out of round condition of the pipes, fittings, or
valves that you are aligning or reforming.
5.14
Loosen enough of the Jackscrews (Chart 10 item A3) in the Jackbars (Chart 8 item A1) one full turn to receive the
Pipe or fitting or until there is adequate room to receive the mating pipe or fitting. This distance may vary
depending on the out of round condition of the pipes, fittings, or valves that you are aligning or reforming.
5.15
Rotate the Crank Handle (Chart 11 item C3) of the Fine Adjustment Assembly (Chart 11) counterclockwise until the
Chain Clamp is loose on the pipe.
5.16
Slide the Clamp out over the edge of the pipe until:
•
Single Screw Chain Clamp
– The Single Jackbars (Chart 8) should be placed on the pipe, fitting or valve so that
the distance between the Jackscrew (Chart 8 item A3) and the base of the Jackbars (Chart 8 item A-1) is
equal.
•
Double Screw Chain Clamp
– The Jackscrews (Chart 8 item A3) of the Double Jackbars Assemblies (Chart 8)
should be placed at an equal distance on either side of the weld joint.
•
Universal Chain Clamp
– The Universal Jackbars Assembly (Chart 9) should be placed over the weld joint so
that the distance between the Jackscrew (Chart 9 item AA-3) and the Jackbars Holder (Chart 9 item AA-1) are
equal.
Note:
Distance may vary slightly depending on how much working area there is on the mating pipe, fitting or
valve.
5.17
Rotate the Crank Handle (Chart 11 item C3) of the Fine Adjustment Assembly (Chart 11) clockwise until the clamp
is as tight as possible on the pipe. Apply as much force to the Crank Handle (Chart 11 item C3) as possible without
the use of any mechanical advantage.
WARNING:
Jackbars at this time should be spaced at an equal
distance around the pipe. If Jackbars are not equally spaced
around the pipe, adjust them now.
