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3.
Unthread and remove the knurled retaining
ring and graduated dial from the end of the
lead screw.
4.
Remove the brass gear from the end of the
lead screw.
Note: Make sure to remove and retain the
small alignment key from lead screw (see
Figure 64).
Alignment Key
Figure 64. Power feed alignment key and brass
gear.
5.
Brush medium weight white lithium grease on
the teeth of the brass gear and the smaller
drive gear (see Figure 65).
Model G9901/G9902/G9903 Milling Machine
6.
7.
Brass Gear
8.
9.
Brass Gear
Drive Gear
Figure 65. Power feed gears.
Align the key with the brass gear keyway as
you slide the gear onto the lead screw and
into the power feed housing.
Secure the graduated dial onto the lead
screw with the knurled retaining ring—do not
overtighten.
Align the key with the handwheel keyway as
you slide it onto the leadscrew, then secure it
with the acorn nut removed in Step 2.
Rotate the handwheel to check the power
feed gear operation and to distribute the
grease on the gears.
-45-
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