When do you remove the lock on a tensioner pulley? Remove the lock only after the tensioner, pulley, or slipper, and timing belt or timing chain are installed and aligned. The next time you work with a drive belt, timing belt, or timing chain, you’ll likely have to loosen a tensioner pulley to remove it. What's the best way to loosen a NaI pulley? To loosen an NAI tensioner, loosen the locking nut or bolt, then back off the tensioner screw. Push the pulley toward the other pulleys or accessories, loosening the belt. Spring tensioner pulleys, as the name implies,...

How does Booksource help teachers manage their libraries? We can help you choose just the right book to engage every student. Booksource Classroom is a FREE, classroom library management tool that helps teachers inventory, manage and analyze their classroom libraries. Where to look for sources in the library? Usually, the location is a place called "the stacks," which is where you go to look for periodicals that are older than the current issue. Remember that you can't take these out of the library. If you find articles that you want to take home, you need to photocopy them. When do...

What kind of transmission do I need for my Dodge Caravan? If you want an inexpensive way to solve your Dodge Grand Caravan transmission problems, then you could just go to the local junkyard and pick up a used A604 transmission, or a used 62TE transmission. Problem is, that used Dodge Caravan transmission probably already has some of the issues that you’re trying to fix now. How often should you change your transmission fluid in a Dodge Caravan? Scheduling routine maintenance for your car and transmission, is vital to the long-term performance of your Dodge Caravan. While experts recommend that...

What is the use of DPPH in chemistry? It is a dark-colored crystalline powder composed of stable free-radical molecules. DPPH has two major applications, both in laboratory research: one is a monitor of chemical reactions involving radicals, most notably it is a common antioxidant assay, and another is a standard of the position and intensity of electron paramagnetic resonance signals. How are DPPH assays used in the real world? DPPH assay is a rapid, simple, inexpensive and widely used method to measure the ability of compounds to act as free radical scavengers or hydrogen donors, and to evaluate antioxidant activity...