Chains
A chain drive will work longer without problems if installed and maintained correctly. The following information is important for keeping the machine in good condition and for reducing repair costs. Check the chains frequently, primarily during the initial hours of operation. Adjust the idlers so that they maintain proper chain tension. The total deflection range of a chain should be 2% of the distance between the centers of the drive and driven sprockets. For example: If the distance between the centers of the drive and driven sprockets is 250 mm (9.84 in.), the chain deflection should be 5 mm (0.20 in.). This distance is measured in the center of the chain span on the side opposite the idler sprocket. Make sure there is no chain deflection on the idler sprocket side before measuring the chain deflection on the opposite side. A chain with excessive deflection will result in rapid and excessive wear of the chain rollers, sprocket teeth and chain-driven components. A chain that is too tight can damage the bearings and shafts. Also, the chain itself wears faster. Proper chain lubrication is important. Lubrication primarily reduces friction, cools and lessens the effect of minor impacts. The lubricant should penetrate between the plates in order to reach the remaining components (pins, caps and rollers). A graphite lubricant or medium-viscosity pure mineral oil is recommended. |
|
CAUTION:
Do not work on chains when the engine is running.
ZX,OMSLC005445 -19-31JAN96-1/1 |