RK06/RK07 Disk Drive User's Manual - Trailing-Edge

6. Respond to program questions 1 through 5 as illustrated in the sample printout in Paragraph
4.4.4.2.
7. Mount the head alignment fixture on the appropriate head (Figures 4-10 and 4-11).
CAUTION
Make sure that the carriage does not tip beyond the
point where the heads will fall out of the cam tower.
8. Torque the head alignment fixture mounting screw to 5 in/lb. Loosen the head mounting
screw and then torque it to 2 in/lb. Turn both vertical screws of the head alignment fixture
fully CCW.
9 Load the heads by typing the letter R.
10. Set the torque wrench to 5 in/lb. Tighten the forward vertical screw to move the head
forward or the rear screw to move the head toward the rear. Since these screws cause oposite
actions, the screw not in use must be turned fully CCW. Adjust until:
a. The red LED on the meter is ON (steady state).
b. The meter on the Field Test box reads 0 ± 50 microinches.
NOTE
If the needle deflects to the right of zero, move the
head toward spindle; if to the left of zero, move away
from spindle.
11. Unload the heads by typing the same head number again. Tighten the head to 5 in/lb.
12. Reload the heads by typing the letter R.
13. Check that the conditions of steps lOa and lOb are met.
14. Unload the heads by typing the next head number.
15. Remove the head alignment fixture and mount it on the next head.
16. Repeat steps 8 through 15 for each data head.
17. When all heads have been aligned, restart the program under its Exerciser mode and exercise
the drive for two minutes. Recheck the alignment of all heads.
18. Remove the alignment cartridge and the Field Test Box; clear the WRITE LOCK condition.
19. Replace the rear cover removed in step 1.
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