Mathey Dearman CGM Cold Cutting System - Manual (Page 13)

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Figure 5: Several different methods can be used to join the chain ends.
● To Lengthen the Drive-Chain.
A. Select the 4-Mesh Chain Segments required to make up the length of Chain shown in Figure 2 of Section 3.
B. Check the End Tails for proper connection (male/female or male/male end tail and not female/female).
C. The 4- Mesh Chain Segments can be joined with the supplied Chain Coupling Pins or the Chain Coupling Link.
● To Shorten the Drive Chain.
A. Check Figure 2 of Section 3 to determine the amount of 4-Mesh Chain segments to be removed.
B. Mark the 4-Mesh Chain Joint-Pin and remove for the new pipe size and cut the head off the Chain Joint-Pin.
C. Insert the 4 Mesh Chain into the Chain Block, supplied with the machine and use the Pin Driver to remove the
Joint-Pin. Remove only the Chain Segments necessary.
D. Check the two (2) End Tails for proper connection (male/female or male/male end tail and not female/female).
5.4 GETTING STARTED
The CGM-1 Pipe Cutting and Beveling Machine, Air and Oil Version, comes with a Steel Storage Box in which there are
special supports for the machine and the accessories.
A. Before placing the machine on the pipe, verify that there is enough clearance for the machine to travel around the
pipe.
B. Check the pipe to be cut for irregularities, such as weld seams or indentations, where the Guide Track and the Drive
Chain will be positioned onto the pipe. These conditions should be ground flush with pipe outside diameter.
C. Attach the Spring Clips onto the two Lifting Cables supplied to the Machine Chassis to the holes located at each
corner of the machine and lift the machine out of the Steel Storage
Box.
Figure 6: Spring Clips of Lifting Cables are connected
at 4 CGM points to remove CGM out of Storage Box .
Chain Coupling
Link
Screw and Nut
Chain
Coupling Pin
4-Link Chain