G3102/G3103 Vertical Mill
-29-
Step 4: Find the nearest spindle speed in the
V-belt configuration chart in
Figure 27, which is
360 RPM.
Step 5: Note the V-belt configuration in the chart
above and to the left of the speed of 360 RPM,
which is
CI.
Step 6: Position the motor V-belt on the third pul-
ley from the bottom of the idler and motor pulleys,
as shown in
Figure 29, then position the spindle
V-belt on the second pulley from the bottom of the
spindle and idler pulley.
Spindle
Pulley
Idler
Pulley
Motor
Pulley
Spindle
V-Belt
Motor
V-Belt
Figure 29. V-belts configured for a spindle
speed of 360 RPM.
NOTICE
When using a carbide cutting tool, double
the cutting speed found in the cutting
speed table in Figure 25 on Page 27.
Downfeed Controls
Refer to the following descriptions and
Figures
30–31 to understand the functions of the downfeed
controls for the quill/spindle.
A. Quill Dog: Moves with the quill. Use the
pointer on the side with the downfeed scale
to determine the depth of downfeed travel.
B. Downfeed Scale: Displays in inches the
amount of quill travel.
C. Coarse Downfeed Lever: When this lever is
enabled with the downfeed selector, it raises/
lowers the quill quickly.
Figure 30. Downfeed controls viewed from the
right side.
A
B
C
D
E
D. Quill Lock: Locks the quill in place but does
not affect spindle rotation.
E. Downfeed Stop & Lock Wheels: Stops the
downfeed travel when the quill dog reaches
this point. Set the stop wheel along the
downfeed scale for the desired depth of cut,
then secure it in place by tightening the lock
wheel up to it.
F. Graduated Scale: Displays quill travel in
0.001" increments when the fine downfeed
handwheel is used, with one full revolution
represents 0.100" of quill travel.
G. Fine Downfeed Handwheel: When enabled,
it raises/lowers the quill in small increments.
H. Downfeed Selector: Enables either the
coarse or fine downfeed control. Tighten
the selector to enable the fine downfeed
handwheel, and loosen it to enable the
coarse downfeed lever.
Figure 31. Downfeed controls viewed from the
left side.
G
H
F
Содержание G3102
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