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ram movement
To rotate the headstock right or left:
1.
DISCONNECT THE MILL FROM POWER!
2.
Use a 19mm wrench to loosen the four rota-
tion locking bolts shown in Figure 25.
Rotation
Bolt
Figure 25. Headstock rotation locking bolts and
rotation bolt.
3.
With one hand against the headstock, apply
pressure in the direction of the desired rota-
tion, and use a 19mm wrench to turn the rota-
tion bolt (see Figure 25).
Note: Turn the rotation bolt clockwise to
rotate the headstock to the right and counter-
clockwise to rotate the headstock to the left.
4.
Re-tighten the rotation locking bolts to secure
the headstock in place.
Ram Movement
The ram can be moved forward and backward,
and rotated 360° around the column.
Always lock the ram firmly in place after
adjusting its position. If the headstock slips
during milling operation, the spinning cutter
could bind and break apart, causing serious
personal injury or property damage.
Model G9901/G9902/G9903 Milling Machine
To move the ram forward or backward hori-
zontally:
1.
2.
Headstock
Rotation
Locking
Bolts
Figure 26. Ram horizontal locking bolts and
3.
4.
To rotate the ram around the column:
1.
2.
3.
DISCONNECT THE MILL FROM POWER!
Use a 19mm wrench to loosen the two hori-
zontal locking bolts shown in Figure 26.
Horizontal Locking Bolts
Horizontal
Drive
Handles
drive handles.
Rotate the horizontal drive handles (Figure
26) in the direction of desired ram move-
ment.
Re-tighten the horizontal locking bolts to
secure the ram in place.
DISCONNECT THE MILL FROM POWER!
Use a 19mm wrench to loosen the four rota-
tion locking bolts, as shown in Figure 27.
Ram Rotation Locking Bolts
Figure 27. Ram rotation locking bolts.
Rotate the ram to the desired position, and
re-tighten the rotation locking bolts to secure
the ram in place.
-31-
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