A-Series Dobby Loom Assembly Manual
Overhead Beater (Optional)
Two-Box Flyshuttle – Dropbox Movement
Page | 113
The boxes slide up and down on a metal rod which is fixed at both ends to
cast metal pieces in order to change the box. There is a brass adjustment
screw with a lock nut. These brass screws provide a stop for the boxes at
their upper and lower extremes of movement.
1)
Adjust the top screw so that when the boxes are all the way up, the
lower box is in precise alignment with the shuttle race.
2)
Adjust the bottom screw so that when the boxes are all the way
down, the upper box is in precise alignment with the shuttle race.
Figure 115 - Flyshuttle adjustment screw
Note:
This adjustment is critical. Please make it carefully. It is wise to lay a straight
edge across the shuttle race and drop box when doing this to assist you in
getting the two perfectly aligned.
3)
When you have it properly adjusted, secure the lock nuts on the
brass screws. Do these adjustments on both the left and right drop
boxes. If your shuttle flight is erratic, re-check these adjustments.
4)
To make sure that the adjustment screws stay in place, you might
want to purchase a small tube of a thread locking agent (such as
