Maintenance
SPINDLE · QUILL ASSEMBLY
The three spindle bearings, two 7011A "A" and on 6209 "B"
'
are of machine tool grade precision bearings and was assembled
very precisely in factory.
The two 7011A angular contact ball bearing "A".
are selecting assembled with the inner
and outer precision collar "C" and "D" and then
preloaded to give the optimum combination
betTeen temperature raising and toughness
of spindle.
Each spindle-qui II assembly has been
Opti1um adjusted and test run, therefore
we do not recommend you to disasse�ble
this unit. i. e.
SPINDLE-QULII UNIT SHOULD BE CHANGED
AS A WHOLE
UNIT
QUILL REMOVAL
1. Lock qui 11
2. Remove micrometer stop
and quill stop.
3. Remove pinion shaft as described
on page
39.
4. Put hand below the quill bottom
and unlock qui I I to remove it
from head casting carefully.
B
A
C
D
A
NOTE
: When the quill unit
will
be replaced,
please use hole micrometer to measure
Fig-3 3
the hole size of cast iron as precise as possible and
tell us, so we can built the correct size of quill unit
for you.
- 40-
Property
of
Kent
Industrial
USA
Do
Not
Reproduce
