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

Switch
SYNC
CLOCK
HALTON ERROR
ADDRESSING
(CYLINDER)
(UNDERLINED SWITCHES)
(DOTTED SWITCHES)
(HEAD)
(HEAD ADDRESS SWITCHES)
(SECTOR)
PARITY (both switches)
Depress the INIT and START switches.
Position
INT
FAST
NO
SWR
245,0 (for RK06)
496,0 (for RK07)
SWR
DESIRED HEAD#
ALL
ODD
To change heads, simply change the head address switch setting and depress the START
switch.
10. Set the torque wrench to 5 in/lb. Tighten the forward vertical screw to move the head
forward or the rear one to move the head to the rear. Since these screws oppose each other,
the screw not in use must be 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.
11. Unload the heads.
12. Tighten the head to 5 in/lb.
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.
13. Load the heads and check that the conditions of steps lOa and b are still met.
14. Unload the heads; remove the head alignment fixture and mount it on the next head.
15. Load the heads and repeat the procedures of steps 8 through 15 until all data heads are
aligned.
4.4.5 Response to Abnormal Conditions
The following procedures are for handling abnormal conditions encountered during a system installation.
4.4.5.1 Clearing an Unsafe Condition - Clearing of an unsafe condition can be accomplished by
releasing the RUN/STOP switch on the front panel. Press the RUN/STOP switch again. If the fault
no longer exists, the FAULT light will go off. When the READY light is on, the drive is ready for
further operations.
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