Chucking - Promac GH-1440W Operating Instructions Manual

Fig 6
A....Coolant On/Off switch
B....Power indicator light
(shows that mains power is on)
C....Emergency stop button
D....Spindle jog button
E....Spindle speed levers
F.....Feed reversing lever
G....Feed / Lead selector lever
(max 650 rpm in position A)
H....Feed / Lead selector
lever F, D...for feed rod
E, C...for lead screw
Fig 7
A.....Top slide lock
B.....Carriage lock
D....Longitudinal Travel Hand Wheel
E.....Automatic Feed Lever
longitudinal feed....right and up
cross feed...........left and down
F.....Half-Nut Lever (thread cutting)
G.....Cross Slide Hand Wheel
H.....Top Slide Hand Wheel
J.....Tool post clamping lever
Fig 8
A....Tailstock Spindle Locking Lever
B.....Tailstock Locking lever
C....Tailstock Spindle Hand Wheel
D....Tailstock off-set adjustment

6.2 Chucking

Chuck removal:
Before removing the chuck from
the spindle, place board across the
bed ways under the chuck.
Support the chuck while turning three
cam locks ¼ turn counter-clockwise.
Line up the two marks (A, Fig 9)
for removal.
Fig 9
Carefully remove the chuck form
the spindle.
Clean all contact surfaces.
Chuck installation:
Lift the chuck up to the spindle
nose and press onto the spindle.
Tighten in place by turning the
cam locks ¼ turn clockwise.
7
The index mark (A) on the camlock
should be between
indicator arrows (B).
If not, adjust the cam studs by turning
them in or out by one turn as needed.
Tighten cam locks.
Attention:
Never exceed the max
limitation of the work holding device.
Jaw teeth and scroll must always
be fully engaged. Otherwise chuck
jaws may break and fly off in
rotation (Fig 10).
Fig 10
Avoid long workpiece extensions.
Parts may bend (Fig 11) or fly off
(Fig 12).
Use tailstock or rests to support.
Fig 11
Fig 12
Avoid short clamping contact (A,
Fig 13) or clamping on a minor part
diameter (B).
the two
speed