Mathey Dearman CGM Cold Cutting System - Manual (Page 23)

23
9.6 – TROUBLESHOOTING GUIDE
Symptom Possible(s) Cause Corrective Action
The Blade Control
Knob is in the ON
Position and the
Blade will not turn.
1. Hoses are not connected to
CGM by Air or Hydraulic
Power Supply.
2. The Blade Safety Cover is not
closed and/or the Latch of the
Blade Safety Device is not
attached to the Cover.
1. Shut Down Air or Hydraulic Power Supply and bleed air or
hydraulic pressure for Hoses. Connect Hoses and follow start up
procedure.
2. Shut Down Air or Hydraulic Power Supply and move Start / Stop
Control to the Stop Position. Close Blade Safety Cover. Attach the
latch to the Blade Safety Device Latch.
Follow the start up procedure.
Cutting and Beveling
Blades stop during
the cutting process.
1. Cutting and/or Beveling Blades
are dull.
2. Excessive forward speed.
3. Wedges were not used to keep
the cut open
1. Move Machine Directional Control to the Reverse Position. When
the Blade starts to rotate, turn the Blade Lowering / Raising
Handle until the Feed Screw lifts the Cutter Spindle to its highest
position. Move Start / Top Control to the Stop Position. Shut
Down Air or Hydraulic Power Supply. Replace Blades and follow
start up procedure. Remove the dull Cutting and Beveling Blades
and install new or re-sharpened blades.
2. Move Machine Directional Control to the Reverse Position. When
the Blade starts rotating, turn the Blade Lowering / Raising Handle
clockwise until the Feed Screw lifts the Cutter Spindle to its
highest position. Move Start / Stop Control to the Stop Position.
Shut Off the Air or Hydraulic Power Supply. Inspect and replace
as necessary the cutting and beveling blades.
Follow the start up procedure.
3. Move and leave the Machine Directional Control to the Reverse
Position, until the Blade starts to rotate. When the Blade is
rotating, turn the Blade Lowering / Raising Handle clockwise until
the Feed Screw lifts the Cutter Spindle to its highest position.
Move Blade Start / Stop Control to the Stop Position. Shut Off the
Air or Hydraulic Power Supply. Inspect and replace as necessary
the Cutting and Beveling Blades.
Follow the start up procedure.
(It may be necessary to drive Wedges deeper into the cut area in
order for the Blades to rotate.)
The Cutter Motor
does not seem to
have enough power
to rotate the Cutting
and Beveling Blades
1. The Blade Safety Device Valve
is partially open.
2. Hydraulic Oil is the incorrect
viscosity.
3. Cutting and Beveling Blades
are dull.
4. Hydraulic Fluid in the
Hydraulic Power Supply
Reservoir is milky in color
1. Move Start / Stop Control to the Stop Position. Shut Down Air or
Hydraulic Power Supply. Close Safety Cutter Cover. Attach the
Latch to the Blade Safety Device Latch.
Follow the start up procedure.
2. Move Machine Directional Control to the Reverse Position.
When the Blade starts rotating, turn the Blade Lowering / Raising
Handle clockwise until the Feed Screw lifts the Cutter Spindle to
its highest position. Shut Down Hydraulic Power Supply. Remove
and replace the Hydraulic Fluid in the Reservoir of the Hydraulic
Power Supply. Follow the start up procedure.
3. Move Machine Directional Control to the Reverse Position. When
the Blade starts rotating, turn the Blade Lowering / Raising Handle
clockwise until the Feed Screw lifts the Cutter Spindle to its
highest position to remove the Cutting and Beveling Blades. Move
Start / Stop Control to the Stop Position. Inspect and replace as
necessary the Cutting and Beveling Blades.
Follow the start up procedure.
4. Move Machine Directional Control to the Reverse Position.
When the Blade starts rotating, turn the Blade Lowering / Raising
Handle clockwise until the Feed Screw lifts the Cutter Spindle to
its highest position. Remove the Hydraulic Power Supply
Reservoir Fill Cap. Let the Hydraulic Power Supply run for 15 –
20 minutes to remove the air from the Hydraulic Fluid in the
Reservoir of the Hydraulic Power Supply. Check the Hydraulic
Fluid to see if it is still milky in color. If the Hydraulic Fluid is
clear. Follow the start up procedure.