Maintenance
Tensioning the chains
4
4-11
IE
doc122719
Maintenance
See figure 4-10.
To tension the infeed drive chain, unbolt and open the feed drive side
removable guard.
Use the adjustment nut on the drive chain tensioner until the drive chain is ten-
sioned as needed. The total deflection of the spring should be from 3/8" to 1/2".
Close and secure the feed drive side removable guard when done.
Check the laser drive chains for tension every 40 hours of operation. Tension as neces-
sary. Remove the chain slack but do not overtighten. The properly adjusted chain should
have 1/4" to 3/8" vertical deflection when applying 6 to 8 pounds of force.
FIG. 4-10
Drive Chain Tensioner
Tensioner Adjustment Nut
IE0021
Drive Chain Tensioner
Tensioner Adjustment Nut
40