Downfeed; Downfeed Controls; Coarse Downfeed; Fine Downfeed - Grizzly G0751 Owner's Manual

Downfeed

the Model g0751 features four ways to control
spindle downfeed:
•

Coarse downfeed

•

Fine downfeed

• auto-downfeed
• tapping downfeed

Downfeed Controls

Use Figure 18 and the descriptions below to iden-
tify the downfeed controls that are referred to in
the following procedures.
a
B
J
h
g
i
F
Figure 18. identification of downfeed controls.
A. auto-downfeed on/oFF Knob
b. auto-downfeed rate selector Knob
C. tapping Limit stops
D. tapping Limit switches
E. Coarse handle Lock-down thumb screw
F. Coarse downfeed handle
G. depth graduated dial Lock handle
H. depth graduated dial
I. Fine downfeed graduated dial
J. Fine downfeed handwheel
-24-
C
d
e
Coarse Downfeed
Use the coarse downfeed handles to control
spindle travel in rapid, large amounts for milling/
drilling.
To use coarse downfeed:
1. Make sure spindle is completely stopped.
2. Loosen depth graduated dial lock handle (G).
3. rotate depth graduated dial (H) to limit
downfeed depth, then retighten lock handle.
4. rotate auto-downfeed on/oFF knob (A) and
auto-downfeed rate selector knob (b) coun-
terclockwise to oFF positions.
5. push coarse downfeed handles (F) toward
headstock and tighten coarse handle lock-
down thumb screw (E) to hold them in place.
6. rotate mode selection switch on control
panel to drilling/Milling position.
7.
start spindle rotation and use coarse
downfeed handles to control spindle travel.
Fine Downfeed
Use the fine downfeed handwheel to control
spindle travel in slow, small amounts for milling/
drilling.
To use fine downfeed:
1. Make sure spindle is completely stopped.
2. Loosen depth graduated dial lock handle (G).
3. Loosen coarse handle lock-down thumb
screw (E) and pull coarse downfeed handles
(F) away from headstock.
4. rotate auto-downfeed on/oFF knob (A) and
auto-downfeed rate selector knob (b) coun-
terclockwise to oFF positions.
5. rotate depth graduated dial (H) to limit
downfeed depth, then retighten lock handle.
Model G0751 (Mfg. Since 1/13)