Mathey Dearman CGM Cold Cutting System User Manual
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M. Turn off the Air or Hydraulic Power Supply.
N. Bleed all Air or Hydraulic pressure from the Hoses connecting the CGM-1 to the Air or Hydraulic Power
Supply.
O. Disconnect the Hoses from the CGM-1.
Safety Warning:
Due to serious risk of injury do not attempt to disconnect Hoses from the CGM-1 without bleeding the Air or
Hydraulic pressure from the Hoses or turning off the Air or Hydraulic Power.
Check for the presence of obstacles that could obstruct the forward movement of the machine around the pipe.
With the Column Tensioning Wrench provided, loosen the 4 Hex Head Cap Screws that hold the Blade
Transmission steadfast to the 4 columns.
7 DISCONNECTING THE POWER SOURCE.
To disconnect the Power Source and stop the use of all the equipment, proceed as follows:
FOR PNEUMATIC MOTOR DRIVE MACHINE
A. Turn off the air supply.
B. Bleed all air pressure from the Hose connecting the CGM-1 to the air supply by rotating the Cutter Control Knob
back and forward to the OFF and ON Position several times.
C. Disconnect the Air Hose from the CGM-1.
Safety Warning
: Due to the risk of injury do not attempt to disconnect Hoses from the CGM-1 without
bleeding the Air or Hydraulic Pressure from the Hoses or turning off the Air or Hydraulic Power Supply.
FOR HYDRAULIC MOTOR DRIVE MACHINE
A. Turn off the Hydraulic Power Supply.
B. Bleed all Hydraulic Pressure from the Hoses connecting the CGM-1 to the Hydraulic Power Supply by rotating
the Cutter Control Knob back and forward to the OFF and ON Position several times.
C. Disconnect the Hoses from the CGM.
Safety Warning:
Do not attempt to disconnect Hoses from the CGM without bleeding the Air or Hydraulic
pressure from the hoses or turning off the Air or Hydraulic Power Supply as it may result in serious injury.
8 DISASSEMBLY AFTER USE
Remove the machine as follows when the cutting process is finished as follows:
A. Disconnect the Power Source as described in section 7.
B. Disengage the Safety Device Latch and lift up the Safety Cutter Cover.
C. Rotate and remove the Lock Nut counterclockwise using 32mm Wrench, then remove the Female Cutter Drive
Collar.
D. Remove all Cutter Blades from the Cutter Spindle.
Note: If Cutters are not removed, prior to lifting the machine, they may be damaged during the lifting process.
E. Inspect the Cutter Blades for wear, chipped and damaged teeth. Report any irregularity to the responsible
manager so that the Blades can be re-sharpened.
F. Connect the two (2) Lifting Cables to the holes in the four (4) corners of the CGM Body.
G. Apply tension to the two (2) Lifting Cables with a Lift or Crane.
H. Release tension on the 4-Mesh Chain by rotating the Chain Tension Screw using the 8mm Wrench and Elbow
Wrench with Bayonet counterclockwise.
I.
Remove the Chain Coupling Pins or the Chain Coupling Link from the 4-Mesh Chain Ends.
J. Lift the CGM-1 off the pipe.