<..,'O&&m'+AVi]Zl$<ZVgWdm
"'&"
Figure 18.>chiVaa^c\i]Z[^ghi_Vl^ci]Z("_Vl
X]jX`#
HXgdaa"<ZVg
AZVYI]gZVY
4-Jaw Chuck
I]Z)"_VlX]jX`^cXajYZYl^i]i]^haVi]Z[ZVijgZh
^cYZeZcYZcian VY_jhiVWaZ ]VgYZcZY hiZZa _Vlh#
:VX] _Vl XVc WZ gZbdkZY [gdb i]Z X]jX` WdYn
VcY gZkZghZY [dg V l^YZ gVc\Z d[ ldg` ]daY^c\
Xdc[^\jgVi^dch# >chiVaa i]Z )"_Vl X]jX` dc i]Z
he^cYaZVXXdgY^c\idi]Z^chigjXi^dchdcPage 18#
Large chucks are very heavy. Always get
assistance when removing or installing
large chucks to prevent personal injury or
damage to the chuck or lathe.
Tools Needed Qty
)"?Vl8]jX`@Zn############################################## &
To mount a workpiece in the 4-jaw chuck:
1. 9>H8DCC:8IA6I=:;GDBEDL:G
2. EaVXZ V e^ZXZ d[ lddY WZadl i]Z X]jX` id
egdiZXii]ZWZYlVnh#
3. JhZi]ZX]jX``ZniddeZcZVX]_Vljci^ai]Z
ldg`e^ZXZXVca^Z[aViV\V^chii]ZX]jX`[VXZ
dgZkZcandci]Z_VlhiZeh#
Installing Jaws into 3-Jaw Chuck
1. 9>H8DCC:8IB68=>C:;GDBEDL:G
2. I]dgdj\]anXaZVcYZWg^hVcY\g^bZ[gdbi]Z
_VlhVcYX]jX`_Vl\j^YZh!i]ZcVeeanVi]^c
[^abd[ajWg^XVciidi]ZbVi^c\hjg[VXZh#
3. :mVb^cZ i]Z _Vlh·ZVX] ^h hiVbeZY l^i] V
cjbWZg&¶(#
4. >chZgi VcY gdiViZ i]Z X]jX` `Zn XadX`l^hZ
jci^andjhZZi]ZWZ\^cc^c\d[i]ZhXgdaa\ZVg
aZVY i]gZVY XdbZ^cidk^Zl i]gdj\] i]Z _Vl
\j^YZ! i]Zc WVX` ^i d[[ ha^\]ian jci^a ^i Y^hVe"
eZVghhZZFigure 18#
5. Ha^YZi]Z&_Vl^cidi]Z_Vl\j^YZVcY]daY
^i[^gbanV\V^chii]ZhXgdaa\ZVgi]gZVYh!i]Zc
gdiViZi]ZX]jX`XadX`l^hZVXdjeaZd[ijgch
idhZcYi]ZaZVYi]gZVYi]gdj\]i]Z_Vl#
6. GZeZVi Steps 4–5 [dg _Vl ' VcY ( ^c
hZfjZcXZ#
·>[^chiVaaZYXdggZXian!i]Zi]gZZ_Vlhl^aaXdc"
kZg\ZZkZcanVii]ZXZciZgd[i]ZX]jX`#
·>[ i]Z _Vlh Yd cdi XdbZ id\Zi]Zg ZkZcan!
gZbdkZ i]Zb! bV`Z hjgZ i]Z cjbWZgh d[
i]Z _Vlh VcY _Vl \j^YZ bViX]! i]Zc gZ"
^chiVaai]Z_Vlh#