Head/Rail Backlash - Jet J-1230R Operating Instructions And Parts Manual

Figure 15

9.2 Head/Rail Backlash

If backlash ever appears between the gearbox
head and the arm rail, the tightness between rail
and bearings can be corrected, as follows.
Refer to Figure 16.
1. Remove side plate (F) by removing screws.
2. Loosen set screws (G).
3. Insert hex key into holes (H), and rotate the
bearing shaft. Rotate handwheel on the front
of the head; it should be snug but still easily
turned.
4. Tighten set screws (G).
5. Repeat steps 1 through 4 for opposite side
of the head.
6. Back at the original side of head, loosen set
screws (I).
7. Insert hex key into hole (J) and rotate
bearing shaft. Test the handwheel tightness
again. When satisfied, retighten set screws
(I).
8. Repeat steps 6 and 7 for opposite side of
the head.
9. Install side plates (F) on both sides of head.
23
Figure 16