Signode Little David LD16AE 2.0 Operator's Manual page 69

stronger. The main spring only effects the application and wipe rollers.
Refer to figure 8.
Weakest
setting
Strongest
setting
Main spring tension
adjustment
 Setting booster spring compression
The booster spring aids in rear tab wipe. The booster spring preloads the
wipe roller arm so when the trailing edge of the box releases the wipe
roller the arm can travel out at a higher rate of speed and contact the rear
tab and secure it to the back panel of the box. The booster adjuster is
factory set to lightly engage when the front roller arm is completely
Figure 8
Main spring
Booster
adjustment
Booster
spring