Cartridge Receiver; Cartridge Receiver Removal And Replacement; Cartridge Receiver Adjustment - IBM 2310 Maintenance Manual

7. Insert the Head Alignment Oscilloscope Adapter
(P/N 2200052) between the head cable plug and
socket for head O. Select head 0 with the CE
Head Select switch.
8. Slowly advance the head adjusting screw while
observing the scope pattern. The scope will
first show noise only, then the pattern of View A,
Figure 4-8 will appear. When the head is prop-
erlyaligned, the pattern of View B, Figure 4-8
will be present and the lobes will be equal in
amplitude.
NOTE: If the head is moved forward, too far toward
the spindle, it will be necessary to shut down the
machine, remove the CE cartridge, and push the
arm backwards toward the voice coil as described in
step 3, then repeat step 8. When the head-arm
assembly is correctly positioned, the lip of the
head load spring will bear on the dimple of
the arm assembly spring. The head load
spring will not be in contact with the plotted
capsule which encases the read/write coils.
It
will be necessary to shift the detent rack
slightly if correct adjustment cannot be made
using step 8.
9. Back off the head adjusting screw one-half turn
when adjustment has been completed. Observe
the scope display pattern to ensure that the
head alignment is not affected.
10. Use the CE switch to select Head 1, and repeat
steps 2 through 9.
NOTE: If the detent rack was moved to accomplish
adjustment of the head-arm assemblies, it will be
necessary to readjust the crash stops (section 4. 10),
home switch (section 7. 11), and tachometer exten-
sion rod (section 7.12.2).
11. Replace drive magnet on the actuator (section
7.6.1) and connect head cables,plugs~and
sockets.
7.16 CARTRIDGE RECEIVER
7. 16. 1 Cartridge Receiver Removal and
Replacement (Figure 7-8)
1.
Remove all ac and dc power from the machine.
2. Remove tension spring that attaches to
cartridge receiver and interlock assembly.
227-5984 (9/65)
3. Remove both cartridge receiver support-pivot
brackets from baseplate.
WARNING: Exercise care in lifting the cartridge
receiver from machine to avoid striking the detent
assembly and disrupting the detent adjustment.
4. Lift cartridge receiver from machine.
5. Replace the cartridge receiver by reversing
steps 2 through 4.
6. Check the cartridge receiver adjustments
described in section 7. 16.2. Readjust only if
absolutely necessary.
7. 16. 2 Cartridge Receiver Adj ustment
NOTE: The cartridge receiver
adjustm~nt
must be
completed prior to attempting an adjustment of the
cartridge interlocks. Any cartridge serves as a
gage for adjusting the side-to-side position of the
cartridge receiver. After this adjustment is made,
it should not be changed unless trouble is suspected.
Adjustment is to be accomplished as follows:
1. Loosen both self locking nuts located on the
pivots of the cartridge receiver so that receiver
is free to move slightly in a sidewise direction
(Figure 7-8).
Pivat Brac ket (2)
4.581"
Reference
I
Reference
Locknut (2)
Cartridge Receiver
Figure 7-8. Cartridge Receiver i\djmlmcnl
-~-
.
: I
,5.000"
(± .010")
--+--L
Cartridge Rest Pin (2)
7.13