Mathey Dearman CGM Cold Cutting System User Manual
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D. Once the machine is lifted to a comfortable height, fit the Drive Chain on to the Sprockets of the Machine as shown in
Figure 2 for the pipe diameter that is to be cut, leaving the Tail Ends of the Chain free.
E. Check the Tail Ends of the Chain to make sure they can be linked.
5.5 INSTALLATION OF THE CGM ON THE PIPE
A. Using the two (2) Lifting Cables provided, lift the machine and place it on top of the pipe.
B. Before releasing the lifting mechanism that is holding the machine in place on the pipe, join two (2) Chain Ends with
the Chain Coupling Pins or the Chain Coupling Link that are supplied.
C. Tighten the 4 Mesh Chain by rotating the Chain Tension Screw clockwise using the 8mm Wrench and Elbow Wrench
with Bayonet until the Chain is snug on the pipe.
D. Use the Torque Wrench and 8mm Wrench to rotate the Chain Tension Screw until a chain tension of 130NM
(96ft. /lbs.) is achieved. Re-torque the Chain to make sure the Chain is correctly tensioned.
E. Release the tension on the two (2) Lifting Cables and unhook the Lifting Cables from the machine.
F. Connect the Air or Hydraulic Power Source to the CGM using the hoses that are provided.
G. Start the Air or Hydraulic Power Source per the operating instructions provided for the Power Source being used.
H. Turn the Start / Stop Control to the ON Position.
Note: Hydraulic Model only - If this is the first time the Hydraulic Power Supply is being run, let the Hydraulic Fluid
circulate through the CGM-1 for 15 – 20 minutes to make sure the air bubbles are removed from the Hydraulic Fluid.
I.
Move the Machine Directional Control to the Forward position.
J. Turn the machine Speed Control Valve Counterclockwise.
K. Rotate the CGM one full turn around the pipe to align the chain.
L. Retorque Chain Tension Screw to 130NM (96Ft. /Lbs.)
M. Turn off the Air or Hydraulic Power Source.
N. The Machine is now ready for the installation of the Severing and Beveling Blades.
Figure 7: Using Torque Wrench – torque Chain to 130NM/96ft.lbs. CGM
points to remove CGM out of Storage Box.