0800 769 464
     07 572 1481


Black Residue on Monorail

Model D/E Troubleshooting

Black Residue on Monorail



There is black residue on the top of the monorail.


Black flecks on your rail are normal. They are a combination of dirt, perspiration, molydisulfide (a lubricant from the plastic rollers) and a very small amount of the nylon plastic that the rollers are made of. These four components are subjected to the mechanical action of the rollers and can dry and harden on the rail. To remove the black residue, clean the monorail. Wipe the monorail with a cloth or non-abrasive scouring pad after use. You can use soap and water or any glass cleaner. Do not use mineral acids, bleach or coarse abrasives.


0800 769 464
07 572 1481


36a Tawa Street
Mount Maunganui 3116
New Zealand
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