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2.2.9 Motor Tension Spring
Note: New style and old style motor tension
springs are not interchangeable. The part number
is etched on the new style spring.
Removal
CAUTION
Do not rotate the disk spindle counterclockwise;
head damage can occur.
1.
2.
3.
Turn power off at the operator control
panel. After the power is sequenced down,
turn the mainline power off at the back of
the machine.
Lift the motor tension spring
II
off the
motor mounting bracket.
CAUTION
Take care that the nut and lock washer do
not fall into the motor.
Remove the nut and lock wClsher from the
end of the screw
II .
4.
Press the tension spring firmly against the
mounting stud, and remove the screw and
flat washer.
5.
Lift the spring off the stud.
6.
For new style motor tension springs only:
Remove one of the insulating washers from
the roller end of the spring assembly and
slide off the spring.
Replacement
1.
For new style motor tension springs only:
Slide the spring onto the roller, place the
insulating washer on the shaft, flat side first,
and hand press into position.
Ease the spring open slightly and press the
screw with the flat washer on it through the
hole
m
in the spring.
Old Style Motor Tension Spring
3.
4.
5.
6.
Press the screw onto the hole in the mount-
ing stud.
Lift the loop of the tension spring into its
seat on the motor mounting bracket.
Install the lock washer and nut, and tighten
the spring on the mounting stud.
Pivot the motor against the tension spring
to ensure correct seating of the spring loop.
New Style Motor Tension Spring
Disk Drive
2-23
TNL: SN31-0487 to SY31-0373-4 (25 Nov 77)
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