Motor Tension Spring - IBM System/34 Maintenance Manual

09-090 MOTOR TENSION SPRING
7.
Open the tension spring a small amount and press
the screw. with the flat washer out of the hole.
Removal
8.
For the new style motor tension springs only:
Remove one of the washers from the roller end
of the spring assembly and slide off the spring.
Note: New style and old style motor tension springs are
not the same. The new style spring must be used with
the new style motor. The old style spring must be used
with the old style motor. The part number is on the new
style spring. Replacement
CAUTION
Do not turn the disk spindle counterclockwise; head
damage can occur.
1. Set Power to 0 (operator panel).
2. Set CB1 off (see paragraph 05-310 for the location
of CB1).
3. Place the blade of a screwdriver under the roller
• and lift the roller and tension spring off the
motor mounting bracket.
4. For the old style motor tension spring only:
Remove the roller.
CAUTION
Ensure that the nut and lock washer do not fall
into the motor.
5. Remove the nut and lock washer from screw
G.
6. Remove the screw and flat washer and tension
spring by placing a screwdriver under the tension
spring
CD
and lift up.
1.
2.
3.
4.
5.
6.
24
09·090
For the new style motor tension springs only:
Place the spring on the roller, place the washer
on the shaft, flat side first, and hand press into
position.
Open the tension spring a small amount and press
the screw with the flat washer on it through the
hole. in the spring.
Press the screw into the hole
G.
Install the roller (old style), circular edge first into
the tension spring.
Place the blade of a screwdriver under roller.
and place the roller and tension spring on the
motor mounting bracket. Install the lock washer
and nut, and tighten the spring.
Pivot the motor against the tension spring to
ensure the spring loop and roller is in the correct
place.
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