Quality Of Abrasive Discs And Recommendations For Use - GEISMAR STUMEC MTZ 350S Manual

1.4.2 Quality of abrasive discs and recommendations for use

• The engine must be stopped before any disc is changed.
• Only use discs that have been formally recommended for use with this type of machine and whose technical characteristics (maximum no-load speed, type
and dimensions), compulsorily marked on the disc by its manufacturer, comply with §2.5 "Technical characteristics / Abrasive disc" and the instruction
plate riveted onto the abrasive disc guard.
The operator is RESPONSIBLE for any accident that occurs when non-compliant discs are used.
• NEVER use an abrasive disc that is cracked, chipped or un-flat. Get rid of faulty discs immediately and replace them with discs in perfect
condition.
• NEVER use a taper sleeve on the abrasive disc centre bore.
• The outside diameter of the tightening flange must always be the same size as that of the motor drive-flange.
• Rotate any new or refitted disc for thirty seconds under no-load conditions, keeping all personnel at a distance during the test, except for the operator, who
must hold the machine in such a way that he is outside the disc's rotation plane and on the closed side of the disc guard.
• NEVER touch a disc that is rotating with your hand or any other part of the body.
• Check that the disc cannot come into contact with any obstacle, especially sleepers or ballast.
• Do not hit or jam the disc when it is running, as this may cause it to disintegrate and have very serious consequences.
• Do not put any side-load on the disc. Only use the outside cutting edge of the disc.
• Before starting, always check that the disc is of sufficiently large diameter to carry out the complete cut.
• For safety reasons, never go over the maximum no-load rotation speed on the disc. Disc speed must be regularly checked for this reason.
• Regularly check the maximum disc speed under NO-LOAD conditions, especially after the machine has been re-assembled. Never check the maximum
speed when the disc is under load, as there is a very high accident risk under these conditions. To avoid any risk of accident, we recommend using a no-
contact electronic tachometer for this operation.
• Store abrasive discs in a dry place, protected from frost, sunlight and extreme heat. Position them so that they are not stored under any load liable to warp
them. Never use any abrasive disc after the "use before" date indicated by the manufacturer.
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