
Before you specify
Frequently Asked Questions
Which shredder is Dahle 20719 high viscosity oil for?
Dahle specifies it for the PowerTEC 747 CS paper and optical media shredder. It is not listed as the lubricant for any other model, including the related 727 CS. Other oil-using Dahle shredders take the standard 20721 or 20722 shredder oil.
How is the 20719 different from standard Dahle shredder oil?
It is thicker. The higher viscosity keeps it on the cutting cylinders of the 747 CS, a heavy chain-driven machine that handles optical discs as well as paper. Dahle's standard 20721 and 20722 oils are lighter and meant for its cabinet shredders, so they would not cling the same way on the 747 CS.
How do you oil a Dahle PowerTEC 747 CS?
Spread a fine stream of the 20719 oil from one end of the feed opening to the other, then run the machine in reverse for a few seconds to carry it across the cylinders. Avoid pouring it into one spot and do not oil while paper is in the feed. Dahle sets no fixed interval, so oil according to how hard the machine is working.
Can I buy a single bottle of 20719 oil?
No, it is only sold as a box of six 10 oz bottles. For a 747 CS in regular use that is a practical amount to keep on hand. Reorder before the last bottle is opened.
Is a generic shredder oil an acceptable substitute in the 747 CS?
We advise against it. Most generic shredder oils behave like a standard-viscosity product, while Dahle specifies a high viscosity oil for this machine. The wrong grade will not cause instant failure, but it is a maintenance deviation that could be raised if a cutting cylinder claim is ever made.